Merge pull request #12746 from TeamNewPipe/kspMigration

Migrate from KAPT to KSP

app/build.gradle.kts

@@ -6,7 +6,7 @@
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.jetbrains.kotlin.android)
-    alias(libs.plugins.jetbrains.kotlin.kapt)
+    alias(libs.plugins.google.ksp)
     alias(libs.plugins.jetbrains.kotlin.parcelize)
     alias(libs.plugins.sonarqube)
     checkstyle
@@ -40,12 +40,6 @@ android {
         System.getProperty("versionNameSuffix")?.let { versionNameSuffix = it }
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
-
-        javaCompileOptions {
-            annotationProcessorOptions {
-                arguments["room.schemaLocation"] = "$projectDir/schemas"
-            }
-        }
     }
 
     buildTypes {
@@ -124,6 +118,11 @@ android {
     }
 }
 
+ksp {
+    arg("room.schemaLocation", "$projectDir/schemas")
+}
+
+
 // Custom dependency configuration for ktlint
 val ktlint by configurations.creating
 
@@ -218,7 +217,7 @@ dependencies {
     implementation(libs.androidx.recyclerview)
     implementation(libs.androidx.room.runtime)
     implementation(libs.androidx.room.rxjava3)
-    kapt(libs.androidx.room.compiler)
+    ksp(libs.androidx.room.compiler)
     implementation(libs.androidx.swiperefreshlayout)
     implementation(libs.androidx.viewpager2)
     implementation(libs.androidx.work.runtime)
@@ -229,7 +228,7 @@ dependencies {
     /** Third-party libraries **/
     implementation(libs.livefront.bridge)
     implementation(libs.evernote.statesaver.core)
-    kapt(libs.evernote.statesaver.compiler)
+    ksp(libs.evernote.statesaver.compiler)
 
     // HTML parser
     implementation(libs.jsoup)
@@ -249,7 +248,7 @@ dependencies {
 
     // Metadata generator for service descriptors
     compileOnly(libs.google.autoservice.annotations)
-    kapt(libs.google.autoservice.compiler)
+    ksp(libs.google.autoservice.compiler)
 
     // Manager for complex RecyclerView layouts
     implementation(libs.lisawray.groupie.core)

app/schemas/org.schabi.newpipe.database.AppDatabase/9.json

@@ -458,7 +458,7 @@
             "notNull": true
           },
           {
-            "fieldPath": "name",
+            "fieldPath": "orderingName",
             "columnName": "name",
             "affinity": "TEXT",
             "notNull": false

app/src/androidTest/java/org/schabi/newpipe/database/DatabaseMigrationTest.kt

@@ -129,7 +129,7 @@ class DatabaseMigrationTest {
         )
 
         val migratedDatabaseV3 = getMigratedDatabase()
-        val listFromDB = migratedDatabaseV3.streamDAO().all.blockingFirst()
+        val listFromDB = migratedDatabaseV3.streamDAO().getAll().blockingFirst()
 
         // Only expect 2, the one with the null url will be ignored
         assertEquals(2, listFromDB.size)
@@ -217,7 +217,7 @@ class DatabaseMigrationTest {
         )
 
         val migratedDatabaseV8 = getMigratedDatabase()
-        val listFromDB = migratedDatabaseV8.searchHistoryDAO().all.blockingFirst()
+        val listFromDB = migratedDatabaseV8.searchHistoryDAO().getAll().blockingFirst()
 
         assertEquals(2, listFromDB.size)
         assertEquals("abc", listFromDB[0].search)
@@ -283,8 +283,8 @@ class DatabaseMigrationTest {
         )
 
         val migratedDatabaseV9 = getMigratedDatabase()
-        var localListFromDB = migratedDatabaseV9.playlistDAO().all.blockingFirst()
-        var remoteListFromDB = migratedDatabaseV9.playlistRemoteDAO().all.blockingFirst()
+        var localListFromDB = migratedDatabaseV9.playlistDAO().getAll().blockingFirst()
+        var remoteListFromDB = migratedDatabaseV9.playlistRemoteDAO().getAll().blockingFirst()
 
         assertEquals(1, localListFromDB.size)
         assertEquals(localUid2, localListFromDB[0].uid)
@@ -294,17 +294,27 @@ class DatabaseMigrationTest {
         assertEquals(-1, remoteListFromDB[0].displayIndex)
 
         val localUid3 = migratedDatabaseV9.playlistDAO().insert(
-            PlaylistEntity(DEFAULT_NAME + "3", false, -1, -1)
+            PlaylistEntity(
+                name = "${DEFAULT_NAME}3",
+                isThumbnailPermanent = false,
+                thumbnailStreamId = -1,
+                displayIndex = -1
+            )
         )
         val remoteUid3 = migratedDatabaseV9.playlistRemoteDAO().insert(
             PlaylistRemoteEntity(
-                DEFAULT_THIRD_SERVICE_ID, DEFAULT_NAME, DEFAULT_THIRD_URL,
-                DEFAULT_THUMBNAIL, DEFAULT_UPLOADER_NAME, -1, 10
+                serviceId = DEFAULT_THIRD_SERVICE_ID,
+                orderingName = DEFAULT_NAME,
+                url = DEFAULT_THIRD_URL,
+                thumbnailUrl = DEFAULT_THUMBNAIL,
+                uploader = DEFAULT_UPLOADER_NAME,
+                displayIndex = -1,
+                streamCount = 10
             )
         )
 
-        localListFromDB = migratedDatabaseV9.playlistDAO().all.blockingFirst()
-        remoteListFromDB = migratedDatabaseV9.playlistRemoteDAO().all.blockingFirst()
+        localListFromDB = migratedDatabaseV9.playlistDAO().getAll().blockingFirst()
+        remoteListFromDB = migratedDatabaseV9.playlistRemoteDAO().getAll().blockingFirst()
         assertEquals(2, localListFromDB.size)
         assertEquals(localUid3, localListFromDB[1].uid)
         assertEquals(-1, localListFromDB[1].displayIndex)

app/src/androidTest/java/org/schabi/newpipe/local/history/HistoryRecordManagerTest.kt

@@ -41,7 +41,7 @@ class HistoryRecordManagerTest {
         // For some reason the Flowable returned by getAll() never completes, so we can't assert
         // that the number of Lists it returns is exactly 1, we can only check if the first List is
         // correct. Why on earth has a Flowable been used instead of a Single for getAll()?!?
-        val entities = database.searchHistoryDAO().all.blockingFirst()
+        val entities = database.searchHistoryDAO().getAll().blockingFirst()
         assertThat(entities).hasSize(1)
         assertThat(entities[0].id).isEqualTo(1)
         assertThat(entities[0].serviceId).isEqualTo(0)
@@ -51,50 +51,50 @@ class HistoryRecordManagerTest {
     @Test
     fun deleteSearchHistory() {
         val entries = listOf(
-            SearchHistoryEntry(time.minusSeconds(1), 0, "A"),
-            SearchHistoryEntry(time.minusSeconds(2), 2, "A"),
-            SearchHistoryEntry(time.minusSeconds(3), 1, "B"),
-            SearchHistoryEntry(time.minusSeconds(4), 0, "B"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(1), serviceId = 0, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(2), serviceId = 2, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(3), serviceId = 1, search = "B"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(4), serviceId = 0, search = "B"),
         )
 
         // make sure all 4 were inserted
         database.searchHistoryDAO().insertAll(entries)
-        assertThat(database.searchHistoryDAO().all.blockingFirst()).hasSameSizeAs(entries)
+        assertThat(database.searchHistoryDAO().getAll().blockingFirst()).hasSameSizeAs(entries)
 
         // try to delete only "A" entries, "B" entries should be untouched
         manager.deleteSearchHistory("A").test().await().assertValue(2)
-        val entities = database.searchHistoryDAO().all.blockingFirst()
+        val entities = database.searchHistoryDAO().getAll().blockingFirst()
         assertThat(entities).hasSize(2)
         assertThat(entities).usingElementComparator { o1, o2 -> if (o1.hasEqualValues(o2)) 0 else 1 }
             .containsExactly(*entries.subList(2, 4).toTypedArray())
 
         // assert that nothing happens if we delete a search query that does exist in the db
         manager.deleteSearchHistory("A").test().await().assertValue(0)
-        val entities2 = database.searchHistoryDAO().all.blockingFirst()
+        val entities2 = database.searchHistoryDAO().getAll().blockingFirst()
         assertThat(entities2).hasSize(2)
         assertThat(entities2).usingElementComparator { o1, o2 -> if (o1.hasEqualValues(o2)) 0 else 1 }
             .containsExactly(*entries.subList(2, 4).toTypedArray())
 
         // delete all remaining entries
         manager.deleteSearchHistory("B").test().await().assertValue(2)
-        assertThat(database.searchHistoryDAO().all.blockingFirst()).isEmpty()
+        assertThat(database.searchHistoryDAO().getAll().blockingFirst()).isEmpty()
     }
 
     @Test
     fun deleteCompleteSearchHistory() {
         val entries = listOf(
-            SearchHistoryEntry(time.minusSeconds(1), 1, "A"),
-            SearchHistoryEntry(time.minusSeconds(2), 2, "B"),
-            SearchHistoryEntry(time.minusSeconds(3), 0, "C"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(1), serviceId = 1, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(2), serviceId = 2, search = "B"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(3), serviceId = 0, search = "C"),
         )
 
         // make sure all 3 were inserted
         database.searchHistoryDAO().insertAll(entries)
-        assertThat(database.searchHistoryDAO().all.blockingFirst()).hasSameSizeAs(entries)
+        assertThat(database.searchHistoryDAO().getAll().blockingFirst()).hasSameSizeAs(entries)
 
         // should remove everything
         manager.deleteCompleteSearchHistory().test().await().assertValue(entries.size)
-        assertThat(database.searchHistoryDAO().all.blockingFirst()).isEmpty()
+        assertThat(database.searchHistoryDAO().getAll().blockingFirst()).isEmpty()
     }
 
     private fun insertShuffledRelatedSearches(relatedSearches: Collection<SearchHistoryEntry>) {
@@ -107,7 +107,7 @@ class HistoryRecordManagerTest {
         // make sure all entries were inserted
         assertEquals(
             relatedSearches.size,
-            database.searchHistoryDAO().all.blockingFirst().size
+            database.searchHistoryDAO().getAll().blockingFirst().size
         )
     }
 
@@ -127,19 +127,18 @@ class HistoryRecordManagerTest {
 
     @Test
     fun getRelatedSearches_emptyQuery_manyDuplicates() {
-        insertShuffledRelatedSearches(
-            listOf(
-                SearchHistoryEntry(time.minusSeconds(9), 3, "A"),
-                SearchHistoryEntry(time.minusSeconds(8), 3, "AB"),
-                SearchHistoryEntry(time.minusSeconds(7), 3, "A"),
-                SearchHistoryEntry(time.minusSeconds(6), 3, "A"),
-                SearchHistoryEntry(time.minusSeconds(5), 3, "BA"),
-                SearchHistoryEntry(time.minusSeconds(4), 3, "A"),
-                SearchHistoryEntry(time.minusSeconds(3), 3, "A"),
-                SearchHistoryEntry(time.minusSeconds(2), 0, "A"),
-                SearchHistoryEntry(time.minusSeconds(1), 2, "AA"),
-            )
+        val relatedSearches = listOf(
+            SearchHistoryEntry(creationDate = time.minusSeconds(9), serviceId = 3, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(8), serviceId = 3, search = "AB"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(7), serviceId = 3, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(6), serviceId = 3, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(5), serviceId = 3, search = "BA"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(4), serviceId = 3, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(3), serviceId = 3, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(2), serviceId = 0, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(1), serviceId = 2, search = "AA"),
         )
+        insertShuffledRelatedSearches(relatedSearches)
 
         val searches = manager.getRelatedSearches("", 9, 3).blockingFirst()
         assertThat(searches).containsExactly("AA", "A", "BA")
@@ -166,13 +165,13 @@ class HistoryRecordManagerTest {
         private val time = OffsetDateTime.of(LocalDateTime.of(2000, 1, 1, 1, 1), ZoneOffset.UTC)
 
         private val RELATED_SEARCHES_ENTRIES = listOf(
-            SearchHistoryEntry(time.minusSeconds(7), 2, "AC"),
-            SearchHistoryEntry(time.minusSeconds(6), 0, "ABC"),
-            SearchHistoryEntry(time.minusSeconds(5), 1, "BA"),
-            SearchHistoryEntry(time.minusSeconds(4), 3, "A"),
-            SearchHistoryEntry(time.minusSeconds(2), 0, "B"),
-            SearchHistoryEntry(time.minusSeconds(3), 2, "AA"),
-            SearchHistoryEntry(time.minusSeconds(1), 1, "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(7), serviceId = 2, search = "AC"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(6), serviceId = 0, search = "ABC"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(5), serviceId = 1, search = "BA"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(4), serviceId = 3, search = "A"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(2), serviceId = 0, search = "B"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(3), serviceId = 2, search = "AA"),
+            SearchHistoryEntry(creationDate = time.minusSeconds(1), serviceId = 1, search = "A"),
         )
     }
 }

app/src/androidTest/java/org/schabi/newpipe/local/playlist/LocalPlaylistManagerTest.kt

@@ -72,6 +72,6 @@ class LocalPlaylistManagerTest {
         val result = manager.createPlaylist("name", listOf(stream, upserted))
 
         result.test().await().assertComplete()
-        database.streamDAO().all.test().awaitCount(1).assertValue(listOf(stream, upserted))
+        database.streamDAO().getAll().test().awaitCount(1).assertValue(listOf(stream, upserted))
     }
 }

app/src/main/java/org/schabi/newpipe/NewPipeDatabase.java

@@ -1,72 +0,0 @@
-package org.schabi.newpipe;
-
-import static org.schabi.newpipe.database.AppDatabase.DATABASE_NAME;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_1_2;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_2_3;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_3_4;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_4_5;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_5_6;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_6_7;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_7_8;
-import static org.schabi.newpipe.database.Migrations.MIGRATION_8_9;
-
-import android.content.Context;
-import android.database.Cursor;
-
-import androidx.annotation.NonNull;
-import androidx.room.Room;
-
-import org.schabi.newpipe.database.AppDatabase;
-
-public final class NewPipeDatabase {
-    private static volatile AppDatabase databaseInstance;
-
-    private NewPipeDatabase() {
-        //no instance
-    }
-
-    private static AppDatabase getDatabase(final Context context) {
-        return Room
-                .databaseBuilder(context.getApplicationContext(), AppDatabase.class, DATABASE_NAME)
-                .addMigrations(MIGRATION_1_2, MIGRATION_2_3, MIGRATION_3_4, MIGRATION_4_5,
-                        MIGRATION_5_6, MIGRATION_6_7, MIGRATION_7_8, MIGRATION_8_9)
-                .build();
-    }
-
-    @NonNull
-    public static AppDatabase getInstance(@NonNull final Context context) {
-        AppDatabase result = databaseInstance;
-        if (result == null) {
-            synchronized (NewPipeDatabase.class) {
-                result = databaseInstance;
-                if (result == null) {
-                    databaseInstance = getDatabase(context);
-                    result = databaseInstance;
-                }
-            }
-        }
-
-        return result;
-    }
-
-    public static void checkpoint() {
-        if (databaseInstance == null) {
-            throw new IllegalStateException("database is not initialized");
-        }
-        final Cursor c = databaseInstance.query("pragma wal_checkpoint(full)", null);
-        if (c.moveToFirst() && c.getInt(0) == 1) {
-            throw new RuntimeException("Checkpoint was blocked from completing");
-        }
-    }
-
-    public static void close() {
-        if (databaseInstance != null) {
-            synchronized (NewPipeDatabase.class) {
-                if (databaseInstance != null) {
-                    databaseInstance.close();
-                    databaseInstance = null;
-                }
-            }
-        }
-    }
-}

app/src/main/java/org/schabi/newpipe/NewPipeDatabase.kt

@@ -0,0 +1,80 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe
+
+import android.content.Context
+import androidx.room.Room.databaseBuilder
+import org.schabi.newpipe.database.AppDatabase
+import org.schabi.newpipe.database.Migrations.MIGRATION_1_2
+import org.schabi.newpipe.database.Migrations.MIGRATION_2_3
+import org.schabi.newpipe.database.Migrations.MIGRATION_3_4
+import org.schabi.newpipe.database.Migrations.MIGRATION_4_5
+import org.schabi.newpipe.database.Migrations.MIGRATION_5_6
+import org.schabi.newpipe.database.Migrations.MIGRATION_6_7
+import org.schabi.newpipe.database.Migrations.MIGRATION_7_8
+import org.schabi.newpipe.database.Migrations.MIGRATION_8_9
+import kotlin.concurrent.Volatile
+
+object NewPipeDatabase {
+
+    @Volatile
+    private var databaseInstance: AppDatabase? = null
+
+    private fun getDatabase(context: Context): AppDatabase {
+        return databaseBuilder(
+            context.applicationContext,
+            AppDatabase::class.java,
+            AppDatabase.Companion.DATABASE_NAME
+        ).addMigrations(
+            MIGRATION_1_2,
+            MIGRATION_2_3,
+            MIGRATION_3_4,
+            MIGRATION_4_5,
+            MIGRATION_5_6,
+            MIGRATION_6_7,
+            MIGRATION_7_8,
+            MIGRATION_8_9
+        ).build()
+    }
+
+    @JvmStatic
+    fun getInstance(context: Context): AppDatabase {
+        var result = databaseInstance
+        if (result == null) {
+            synchronized(NewPipeDatabase::class.java) {
+                result = databaseInstance
+                if (result == null) {
+                    databaseInstance = getDatabase(context)
+                    result = databaseInstance
+                }
+            }
+        }
+
+        return result!!
+    }
+
+    @JvmStatic
+    fun checkpoint() {
+        checkNotNull(databaseInstance) { "database is not initialized" }
+        val c = databaseInstance!!.query("pragma wal_checkpoint(full)", null)
+        if (c.moveToFirst() && c.getInt(0) == 1) {
+            throw RuntimeException("Checkpoint was blocked from completing")
+        }
+    }
+
+    @JvmStatic
+    fun close() {
+        if (databaseInstance != null) {
+            synchronized(NewPipeDatabase::class.java) {
+                if (databaseInstance != null) {
+                    databaseInstance!!.close()
+                    databaseInstance = null
+                }
+            }
+        }
+    }
+}

app/src/main/java/org/schabi/newpipe/database/AppDatabase.java

@@ -1,65 +0,0 @@
-package org.schabi.newpipe.database;
-
-import static org.schabi.newpipe.database.Migrations.DB_VER_9;
-
-import androidx.room.Database;
-import androidx.room.RoomDatabase;
-import androidx.room.TypeConverters;
-
-import org.schabi.newpipe.database.feed.dao.FeedDAO;
-import org.schabi.newpipe.database.feed.dao.FeedGroupDAO;
-import org.schabi.newpipe.database.feed.model.FeedEntity;
-import org.schabi.newpipe.database.feed.model.FeedGroupEntity;
-import org.schabi.newpipe.database.feed.model.FeedGroupSubscriptionEntity;
-import org.schabi.newpipe.database.feed.model.FeedLastUpdatedEntity;
-import org.schabi.newpipe.database.history.dao.SearchHistoryDAO;
-import org.schabi.newpipe.database.history.dao.StreamHistoryDAO;
-import org.schabi.newpipe.database.history.model.SearchHistoryEntry;
-import org.schabi.newpipe.database.history.model.StreamHistoryEntity;
-import org.schabi.newpipe.database.playlist.dao.PlaylistDAO;
-import org.schabi.newpipe.database.playlist.dao.PlaylistRemoteDAO;
-import org.schabi.newpipe.database.playlist.dao.PlaylistStreamDAO;
-import org.schabi.newpipe.database.playlist.model.PlaylistEntity;
-import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
-import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity;
-import org.schabi.newpipe.database.stream.dao.StreamDAO;
-import org.schabi.newpipe.database.stream.dao.StreamStateDAO;
-import org.schabi.newpipe.database.stream.model.StreamEntity;
-import org.schabi.newpipe.database.stream.model.StreamStateEntity;
-import org.schabi.newpipe.database.subscription.SubscriptionDAO;
-import org.schabi.newpipe.database.subscription.SubscriptionEntity;
-
-@TypeConverters({Converters.class})
-@Database(
-        entities = {
-                SubscriptionEntity.class, SearchHistoryEntry.class,
-                StreamEntity.class, StreamHistoryEntity.class, StreamStateEntity.class,
-                PlaylistEntity.class, PlaylistStreamEntity.class, PlaylistRemoteEntity.class,
-                FeedEntity.class, FeedGroupEntity.class, FeedGroupSubscriptionEntity.class,
-                FeedLastUpdatedEntity.class
-        },
-        version = DB_VER_9
-)
-public abstract class AppDatabase extends RoomDatabase {
-    public static final String DATABASE_NAME = "newpipe.db";
-
-    public abstract SearchHistoryDAO searchHistoryDAO();
-
-    public abstract StreamDAO streamDAO();
-
-    public abstract StreamHistoryDAO streamHistoryDAO();
-
-    public abstract StreamStateDAO streamStateDAO();
-
-    public abstract PlaylistDAO playlistDAO();
-
-    public abstract PlaylistStreamDAO playlistStreamDAO();
-
-    public abstract PlaylistRemoteDAO playlistRemoteDAO();
-
-    public abstract FeedDAO feedDAO();
-
-    public abstract FeedGroupDAO feedGroupDAO();
-
-    public abstract SubscriptionDAO subscriptionDAO();
-}

app/src/main/java/org/schabi/newpipe/database/AppDatabase.kt

@@ -0,0 +1,68 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database
+
+import androidx.room.Database
+import androidx.room.RoomDatabase
+import androidx.room.TypeConverters
+import org.schabi.newpipe.database.feed.dao.FeedDAO
+import org.schabi.newpipe.database.feed.dao.FeedGroupDAO
+import org.schabi.newpipe.database.feed.model.FeedEntity
+import org.schabi.newpipe.database.feed.model.FeedGroupEntity
+import org.schabi.newpipe.database.feed.model.FeedGroupSubscriptionEntity
+import org.schabi.newpipe.database.feed.model.FeedLastUpdatedEntity
+import org.schabi.newpipe.database.history.dao.SearchHistoryDAO
+import org.schabi.newpipe.database.history.dao.StreamHistoryDAO
+import org.schabi.newpipe.database.history.model.SearchHistoryEntry
+import org.schabi.newpipe.database.history.model.StreamHistoryEntity
+import org.schabi.newpipe.database.playlist.dao.PlaylistDAO
+import org.schabi.newpipe.database.playlist.dao.PlaylistRemoteDAO
+import org.schabi.newpipe.database.playlist.dao.PlaylistStreamDAO
+import org.schabi.newpipe.database.playlist.model.PlaylistEntity
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity
+import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity
+import org.schabi.newpipe.database.stream.dao.StreamDAO
+import org.schabi.newpipe.database.stream.dao.StreamStateDAO
+import org.schabi.newpipe.database.stream.model.StreamEntity
+import org.schabi.newpipe.database.stream.model.StreamStateEntity
+import org.schabi.newpipe.database.subscription.SubscriptionDAO
+import org.schabi.newpipe.database.subscription.SubscriptionEntity
+
+@TypeConverters(Converters::class)
+@Database(
+    version = Migrations.DB_VER_9,
+    entities = [
+        SubscriptionEntity::class,
+        SearchHistoryEntry::class,
+        StreamEntity::class,
+        StreamHistoryEntity::class,
+        StreamStateEntity::class,
+        PlaylistEntity::class,
+        PlaylistStreamEntity::class,
+        PlaylistRemoteEntity::class,
+        FeedEntity::class,
+        FeedGroupEntity::class,
+        FeedGroupSubscriptionEntity::class,
+        FeedLastUpdatedEntity::class
+    ]
+)
+abstract class AppDatabase : RoomDatabase() {
+    abstract fun feedDAO(): FeedDAO
+    abstract fun feedGroupDAO(): FeedGroupDAO
+    abstract fun playlistDAO(): PlaylistDAO
+    abstract fun playlistRemoteDAO(): PlaylistRemoteDAO
+    abstract fun playlistStreamDAO(): PlaylistStreamDAO
+    abstract fun searchHistoryDAO(): SearchHistoryDAO
+    abstract fun streamDAO(): StreamDAO
+    abstract fun streamHistoryDAO(): StreamHistoryDAO
+    abstract fun streamStateDAO(): StreamStateDAO
+    abstract fun subscriptionDAO(): SubscriptionDAO
+
+    companion object {
+        const val DATABASE_NAME: String = "newpipe.db"
+    }
+}

app/src/main/java/org/schabi/newpipe/database/BasicDAO.java

@@ -1,39 +0,0 @@
-package org.schabi.newpipe.database;
-
-import androidx.room.Dao;
-import androidx.room.Delete;
-import androidx.room.Insert;
-import androidx.room.Update;
-
-import java.util.Collection;
-import java.util.List;
-
-import io.reactivex.rxjava3.core.Flowable;
-
-@Dao
-public interface BasicDAO<Entity> {
-    /* Inserts */
-    @Insert
-    long insert(Entity entity);
-
-    @Insert
-    List<Long> insertAll(Collection<Entity> entities);
-
-    /* Searches */
-    Flowable<List<Entity>> getAll();
-
-    Flowable<List<Entity>> listByService(int serviceId);
-
-    /* Deletes */
-    @Delete
-    void delete(Entity entity);
-
-    int deleteAll();
-
-    /* Updates */
-    @Update
-    int update(Entity entity);
-
-    @Update
-    void update(Collection<Entity> entities);
-}

app/src/main/java/org/schabi/newpipe/database/BasicDAO.kt

@@ -0,0 +1,42 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2022 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Update
+import io.reactivex.rxjava3.core.Flowable
+
+@Dao
+interface BasicDAO<Entity> {
+
+    /* Inserts */
+    @Insert
+    fun insert(entity: Entity): Long
+
+    @Insert
+    fun insertAll(entities: Collection<Entity>): List<Long>
+
+    /* Searches */
+    fun getAll(): Flowable<List<Entity>>
+
+    fun listByService(serviceId: Int): Flowable<List<Entity>>
+
+    /* Deletes */
+    @Delete
+    fun delete(entity: Entity)
+
+    fun deleteAll(): Int
+
+    /* Updates */
+    @Update
+    fun update(entity: Entity): Int
+
+    @Update
+    fun update(entities: Collection<Entity>)
+}

app/src/main/java/org/schabi/newpipe/database/LocalItem.java

@@ -1,13 +0,0 @@
-package org.schabi.newpipe.database;
-
-public interface LocalItem {
-    LocalItemType getLocalItemType();
-
-    enum LocalItemType {
-        PLAYLIST_LOCAL_ITEM,
-        PLAYLIST_REMOTE_ITEM,
-
-        PLAYLIST_STREAM_ITEM,
-        STATISTIC_STREAM_ITEM,
-    }
-}

app/src/main/java/org/schabi/newpipe/database/LocalItem.kt

@@ -0,0 +1,19 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2020 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database
+
+interface LocalItem {
+    val localItemType: LocalItemType
+
+    enum class LocalItemType {
+        PLAYLIST_LOCAL_ITEM,
+        PLAYLIST_REMOTE_ITEM,
+
+        PLAYLIST_STREAM_ITEM,
+        STATISTIC_STREAM_ITEM,
+    }
+}

app/src/main/java/org/schabi/newpipe/database/Migrations.java

@@ -1,307 +0,0 @@
-package org.schabi.newpipe.database;
-
-import android.util.Log;
-
-import androidx.annotation.NonNull;
-import androidx.room.migration.Migration;
-import androidx.sqlite.db.SupportSQLiteDatabase;
-
-import org.schabi.newpipe.MainActivity;
-
-public final class Migrations {
-
-    /////////////////////////////////////////////////////////////////////////////
-    //  Test new migrations manually by importing a database from daily usage  //
-    //  and checking if the migration works (Use the Database Inspector        //
-    //  https://developer.android.com/studio/inspect/database).                //
-    //  If you add a migration point it out in the pull request, so that       //
-    //  others remember to test it themselves.                                 //
-    /////////////////////////////////////////////////////////////////////////////
-
-    public static final int DB_VER_1 = 1;
-    public static final int DB_VER_2 = 2;
-    public static final int DB_VER_3 = 3;
-    public static final int DB_VER_4 = 4;
-    public static final int DB_VER_5 = 5;
-    public static final int DB_VER_6 = 6;
-    public static final int DB_VER_7 = 7;
-    public static final int DB_VER_8 = 8;
-    public static final int DB_VER_9 = 9;
-
-    private static final String TAG = Migrations.class.getName();
-    public static final boolean DEBUG = MainActivity.DEBUG;
-
-    public static final Migration MIGRATION_1_2 = new Migration(DB_VER_1, DB_VER_2) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            if (DEBUG) {
-                Log.d(TAG, "Start migrating database");
-            }
-            /*
-             * Unfortunately these queries must be hardcoded due to the possibility of
-             * schema and names changing at a later date, thus invalidating the older migration
-             * scripts if they are not hardcoded.
-             * */
-
-            // Not much we can do about this, since room doesn't create tables before migration.
-            // It's either this or blasting the entire database anew.
-            database.execSQL("CREATE  INDEX `index_search_history_search` "
-                    + "ON `search_history` (`search`)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS `streams` "
-                    + "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-                    + "`service_id` INTEGER NOT NULL, `url` TEXT, `title` TEXT, "
-                    + "`stream_type` TEXT, `duration` INTEGER, `uploader` TEXT, "
-                    + "`thumbnail_url` TEXT)");
-            database.execSQL("CREATE UNIQUE INDEX `index_streams_service_id_url` "
-                    + "ON `streams` (`service_id`, `url`)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS `stream_history` "
-                    + "(`stream_id` INTEGER NOT NULL, `access_date` INTEGER NOT NULL, "
-                    + "`repeat_count` INTEGER NOT NULL, PRIMARY KEY(`stream_id`, `access_date`), "
-                    + "FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE )");
-            database.execSQL("CREATE  INDEX `index_stream_history_stream_id` "
-                    + "ON `stream_history` (`stream_id`)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS `stream_state` "
-                    + "(`stream_id` INTEGER NOT NULL, `progress_time` INTEGER NOT NULL, "
-                    + "PRIMARY KEY(`stream_id`), FOREIGN KEY(`stream_id`) "
-                    + "REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE )");
-            database.execSQL("CREATE TABLE IF NOT EXISTS `playlists` "
-                    + "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-                    + "`name` TEXT, `thumbnail_url` TEXT)");
-            database.execSQL("CREATE  INDEX `index_playlists_name` ON `playlists` (`name`)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS `playlist_stream_join` "
-                    + "(`playlist_id` INTEGER NOT NULL, `stream_id` INTEGER NOT NULL, "
-                    + "`join_index` INTEGER NOT NULL, PRIMARY KEY(`playlist_id`, `join_index`), "
-                    + "FOREIGN KEY(`playlist_id`) REFERENCES `playlists`(`uid`) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, "
-                    + "FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)");
-            database.execSQL("CREATE UNIQUE INDEX "
-                    + "`index_playlist_stream_join_playlist_id_join_index` "
-                    + "ON `playlist_stream_join` (`playlist_id`, `join_index`)");
-            database.execSQL("CREATE  INDEX `index_playlist_stream_join_stream_id` "
-                    + "ON `playlist_stream_join` (`stream_id`)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS `remote_playlists` "
-                    + "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-                    + "`service_id` INTEGER NOT NULL, `name` TEXT, `url` TEXT, "
-                    + "`thumbnail_url` TEXT, `uploader` TEXT, `stream_count` INTEGER)");
-            database.execSQL("CREATE  INDEX `index_remote_playlists_name` "
-                    + "ON `remote_playlists` (`name`)");
-            database.execSQL("CREATE UNIQUE INDEX `index_remote_playlists_service_id_url` "
-                    + "ON `remote_playlists` (`service_id`, `url`)");
-
-            // Populate streams table with existing entries in watch history
-            // Latest data first, thus ignoring older entries with the same indices
-            database.execSQL("INSERT OR IGNORE INTO streams (service_id, url, title, "
-                    + "stream_type, duration, uploader, thumbnail_url) "
-
-                    + "SELECT service_id, url, title, 'VIDEO_STREAM', duration, "
-                    + "uploader, thumbnail_url "
-
-                    + "FROM watch_history "
-                    + "ORDER BY creation_date DESC");
-
-            // Once the streams have PKs, join them with the normalized history table
-            // and populate it with the remaining data from watch history
-            database.execSQL("INSERT INTO stream_history (stream_id, access_date, repeat_count)"
-                    + "SELECT uid, creation_date, 1 "
-                    + "FROM watch_history INNER JOIN streams "
-                    + "ON watch_history.service_id == streams.service_id "
-                    + "AND watch_history.url == streams.url "
-                    + "ORDER BY creation_date DESC");
-
-            database.execSQL("DROP TABLE IF EXISTS watch_history");
-
-            if (DEBUG) {
-                Log.d(TAG, "Stop migrating database");
-            }
-        }
-    };
-
-    public static final Migration MIGRATION_2_3 = new Migration(DB_VER_2, DB_VER_3) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            // Add NOT NULLs and new fields
-            database.execSQL("CREATE TABLE IF NOT EXISTS streams_new "
-                    + "(uid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-                    + "service_id INTEGER NOT NULL, url TEXT NOT NULL, title TEXT NOT NULL, "
-                    + "stream_type TEXT NOT NULL, duration INTEGER NOT NULL, "
-                    + "uploader TEXT NOT NULL, thumbnail_url TEXT, view_count INTEGER, "
-                    + "textual_upload_date TEXT, upload_date INTEGER, "
-                    + "is_upload_date_approximation INTEGER)");
-
-            database.execSQL("INSERT INTO streams_new (uid, service_id, url, title, stream_type, "
-                    + "duration, uploader, thumbnail_url, view_count, textual_upload_date, "
-                    + "upload_date, is_upload_date_approximation) "
-
-                    + "SELECT uid, service_id, url, ifnull(title, ''), "
-                    + "ifnull(stream_type, 'VIDEO_STREAM'), ifnull(duration, 0), "
-                    + "ifnull(uploader, ''), ifnull(thumbnail_url, ''), NULL, NULL, NULL, NULL "
-
-                    + "FROM streams WHERE url IS NOT NULL");
-
-            database.execSQL("DROP TABLE streams");
-            database.execSQL("ALTER TABLE streams_new RENAME TO streams");
-            database.execSQL("CREATE UNIQUE INDEX index_streams_service_id_url "
-                    + "ON streams (service_id, url)");
-
-            // Tables for feed feature
-            database.execSQL("CREATE TABLE IF NOT EXISTS feed "
-                    + "(stream_id INTEGER NOT NULL, subscription_id INTEGER NOT NULL, "
-                    + "PRIMARY KEY(stream_id, subscription_id), "
-                    + "FOREIGN KEY(stream_id) REFERENCES streams(uid) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, "
-                    + "FOREIGN KEY(subscription_id) REFERENCES subscriptions(uid) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)");
-            database.execSQL("CREATE INDEX index_feed_subscription_id ON feed (subscription_id)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS feed_group "
-                    + "(uid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, name TEXT NOT NULL, "
-                    + "icon_id INTEGER NOT NULL, sort_order INTEGER NOT NULL)");
-            database.execSQL("CREATE INDEX index_feed_group_sort_order ON feed_group (sort_order)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS feed_group_subscription_join "
-                    + "(group_id INTEGER NOT NULL, subscription_id INTEGER NOT NULL, "
-                    + "PRIMARY KEY(group_id, subscription_id), "
-                    + "FOREIGN KEY(group_id) REFERENCES feed_group(uid) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, "
-                    + "FOREIGN KEY(subscription_id) REFERENCES subscriptions(uid) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)");
-            database.execSQL("CREATE INDEX index_feed_group_subscription_join_subscription_id "
-                    + "ON feed_group_subscription_join (subscription_id)");
-            database.execSQL("CREATE TABLE IF NOT EXISTS feed_last_updated "
-                    + "(subscription_id INTEGER NOT NULL, last_updated INTEGER, "
-                    + "PRIMARY KEY(subscription_id), "
-                    + "FOREIGN KEY(subscription_id) REFERENCES subscriptions(uid) "
-                    + "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)");
-        }
-    };
-
-    public static final Migration MIGRATION_3_4 = new Migration(DB_VER_3, DB_VER_4) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            database.execSQL(
-                    "ALTER TABLE streams ADD COLUMN uploader_url TEXT"
-            );
-        }
-    };
-
-    public static final Migration MIGRATION_4_5 = new Migration(DB_VER_4, DB_VER_5) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            database.execSQL("ALTER TABLE `subscriptions` ADD COLUMN `notification_mode` "
-                    + "INTEGER NOT NULL DEFAULT 0");
-        }
-    };
-
-    public static final Migration MIGRATION_5_6 = new Migration(DB_VER_5, DB_VER_6) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            database.execSQL("ALTER TABLE `playlists` ADD COLUMN `is_thumbnail_permanent` "
-                    + "INTEGER NOT NULL DEFAULT 0");
-        }
-    };
-
-    public static final Migration MIGRATION_6_7 = new Migration(DB_VER_6, DB_VER_7) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            // Create a new column thumbnail_stream_id
-            database.execSQL("ALTER TABLE `playlists` ADD COLUMN `thumbnail_stream_id` "
-                    + "INTEGER NOT NULL DEFAULT -1");
-
-            // Migrate the thumbnail_url to the thumbnail_stream_id
-            database.execSQL("UPDATE playlists SET thumbnail_stream_id = ("
-                    + " SELECT CASE WHEN COUNT(*) != 0 then stream_uid ELSE -1 END"
-                    + " FROM ("
-                    + " SELECT p.uid AS playlist_uid, s.uid AS stream_uid"
-                    + " FROM playlists p"
-                    + " LEFT JOIN playlist_stream_join ps ON p.uid = ps.playlist_id"
-                    + " LEFT JOIN streams s ON s.uid = ps.stream_id"
-                    + " WHERE s.thumbnail_url = p.thumbnail_url) AS temporary_table"
-                    + " WHERE playlist_uid = playlists.uid)");
-
-            // Remove the thumbnail_url field in the playlist table
-            database.execSQL("CREATE TABLE IF NOT EXISTS `playlists_new`"
-                    + "(uid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-                    + "name TEXT, "
-                    + "is_thumbnail_permanent INTEGER NOT NULL, "
-                    + "thumbnail_stream_id INTEGER NOT NULL)");
-
-            database.execSQL("INSERT INTO playlists_new"
-                    + " SELECT uid, name, is_thumbnail_permanent, thumbnail_stream_id "
-                    + " FROM playlists");
-
-
-            database.execSQL("DROP TABLE playlists");
-            database.execSQL("ALTER TABLE playlists_new RENAME TO playlists");
-            database.execSQL("CREATE INDEX IF NOT EXISTS "
-                    + "`index_playlists_name` ON `playlists` (`name`)");
-        }
-    };
-
-    public static final Migration MIGRATION_7_8 = new Migration(DB_VER_7, DB_VER_8) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            database.execSQL("DELETE FROM search_history WHERE id NOT IN (SELECT id FROM (SELECT "
-                    + "MIN(id) as id FROM search_history GROUP BY trim(search), service_id ) tmp)");
-            database.execSQL("UPDATE search_history SET search = trim(search)");
-        }
-    };
-
-    public static final Migration MIGRATION_8_9 = new Migration(DB_VER_8, DB_VER_9) {
-        @Override
-        public void migrate(@NonNull final SupportSQLiteDatabase database) {
-            try {
-                database.beginTransaction();
-
-                // Update playlists.
-                // Create a temp table to initialize display_index.
-                database.execSQL("CREATE TABLE `playlists_tmp` "
-                        + "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-                        + "`name` TEXT, `is_thumbnail_permanent` INTEGER NOT NULL, "
-                        + "`thumbnail_stream_id` INTEGER NOT NULL, "
-                        + "`display_index` INTEGER NOT NULL)");
-                database.execSQL("INSERT INTO `playlists_tmp` "
-                        + "(`uid`, `name`, `is_thumbnail_permanent`, `thumbnail_stream_id`, "
-                        + "`display_index`) "
-                        + "SELECT `uid`, `name`, `is_thumbnail_permanent`, `thumbnail_stream_id`, "
-                        + "-1 "
-                        + "FROM `playlists`");
-
-                // Replace the old table, note that this also removes the index on the name which
-                // we don't need anymore.
-                database.execSQL("DROP TABLE `playlists`");
-                database.execSQL("ALTER TABLE `playlists_tmp` RENAME TO `playlists`");
-
-
-                // Update remote_playlists.
-                // Create a temp table to initialize display_index.
-                database.execSQL("CREATE TABLE `remote_playlists_tmp` "
-                        + "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-                        + "`service_id` INTEGER NOT NULL, `name` TEXT, `url` TEXT, "
-                        + "`thumbnail_url` TEXT, `uploader` TEXT, "
-                        + "`display_index` INTEGER NOT NULL,"
-                        + "`stream_count` INTEGER)");
-                database.execSQL("INSERT INTO `remote_playlists_tmp` (`uid`, `service_id`, "
-                        + "`name`, `url`, `thumbnail_url`, `uploader`, `display_index`, "
-                        + "`stream_count`)"
-                        + "SELECT `uid`, `service_id`, `name`, `url`, `thumbnail_url`, `uploader`, "
-                        + "-1, `stream_count` FROM `remote_playlists`");
-
-                // Replace the old table, note that this also removes the index on the name which
-                // we don't need anymore.
-                database.execSQL("DROP TABLE `remote_playlists`");
-                database.execSQL("ALTER TABLE `remote_playlists_tmp` RENAME TO `remote_playlists`");
-
-                // Create index on the new table.
-                database.execSQL("CREATE UNIQUE INDEX `index_remote_playlists_service_id_url` "
-                        + "ON `remote_playlists` (`service_id`, `url`)");
-
-                database.setTransactionSuccessful();
-            } finally {
-                database.endTransaction();
-            }
-        }
-    };
-
-    private Migrations() {
-    }
-}

app/src/main/java/org/schabi/newpipe/database/Migrations.kt

@@ -0,0 +1,368 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database
+
+import android.util.Log
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+import org.schabi.newpipe.MainActivity
+
+object Migrations {
+
+    // /////////////////////////////////////////////////////////////////////// //
+    //  Test new migrations manually by importing a database from daily usage  //
+    //  and checking if the migration works (Use the Database Inspector        //
+    //  https://developer.android.com/studio/inspect/database).                //
+    //  If you add a migration point it out in the pull request, so that       //
+    //  others remember to test it themselves.                                 //
+    // /////////////////////////////////////////////////////////////////////// //
+
+    const val DB_VER_1 = 1
+    const val DB_VER_2 = 2
+    const val DB_VER_3 = 3
+    const val DB_VER_4 = 4
+    const val DB_VER_5 = 5
+    const val DB_VER_6 = 6
+    const val DB_VER_7 = 7
+    const val DB_VER_8 = 8
+    const val DB_VER_9 = 9
+
+    private val TAG = Migrations::class.java.getName()
+    private val isDebug = MainActivity.DEBUG
+
+    val MIGRATION_1_2 = object : Migration(DB_VER_1, DB_VER_2) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            if (isDebug) {
+                Log.d(TAG, "Start migrating database")
+            }
+
+            /*
+             * Unfortunately these queries must be hardcoded due to the possibility of
+             * schema and names changing at a later date, thus invalidating the older migration
+             * scripts if they are not hardcoded.
+             * */
+
+            // Not much we can do about this, since room doesn't create tables before migration.
+            // It's either this or blasting the entire database anew.
+            db.execSQL(
+                "CREATE  INDEX `index_search_history_search` " +
+                    "ON `search_history` (`search`)"
+            )
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS `streams` " +
+                    "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
+                    "`service_id` INTEGER NOT NULL, `url` TEXT, `title` TEXT, " +
+                    "`stream_type` TEXT, `duration` INTEGER, `uploader` TEXT, " +
+                    "`thumbnail_url` TEXT)"
+            )
+            db.execSQL(
+                "CREATE UNIQUE INDEX `index_streams_service_id_url` " +
+                    "ON `streams` (`service_id`, `url`)"
+            )
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS `stream_history` " +
+                    "(`stream_id` INTEGER NOT NULL, `access_date` INTEGER NOT NULL, " +
+                    "`repeat_count` INTEGER NOT NULL, PRIMARY KEY(`stream_id`, `access_date`), " +
+                    "FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE )"
+            )
+            db.execSQL(
+                "CREATE  INDEX `index_stream_history_stream_id` " +
+                    "ON `stream_history` (`stream_id`)"
+            )
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS `stream_state` " +
+                    "(`stream_id` INTEGER NOT NULL, `progress_time` INTEGER NOT NULL, " +
+                    "PRIMARY KEY(`stream_id`), FOREIGN KEY(`stream_id`) " +
+                    "REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE )"
+            )
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS `playlists` " +
+                    "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
+                    "`name` TEXT, `thumbnail_url` TEXT)"
+            )
+            db.execSQL("CREATE  INDEX `index_playlists_name` ON `playlists` (`name`)")
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS `playlist_stream_join` " +
+                    "(`playlist_id` INTEGER NOT NULL, `stream_id` INTEGER NOT NULL, " +
+                    "`join_index` INTEGER NOT NULL, PRIMARY KEY(`playlist_id`, `join_index`), " +
+                    "FOREIGN KEY(`playlist_id`) REFERENCES `playlists`(`uid`) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, " +
+                    "FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)"
+            )
+            db.execSQL(
+                "CREATE UNIQUE INDEX " +
+                    "`index_playlist_stream_join_playlist_id_join_index` " +
+                    "ON `playlist_stream_join` (`playlist_id`, `join_index`)"
+            )
+            db.execSQL(
+                "CREATE  INDEX `index_playlist_stream_join_stream_id` " +
+                    "ON `playlist_stream_join` (`stream_id`)"
+            )
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS `remote_playlists` " +
+                    "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
+                    "`service_id` INTEGER NOT NULL, `name` TEXT, `url` TEXT, " +
+                    "`thumbnail_url` TEXT, `uploader` TEXT, `stream_count` INTEGER)"
+            )
+            db.execSQL(
+                "CREATE  INDEX `index_remote_playlists_name` " +
+                    "ON `remote_playlists` (`name`)"
+            )
+            db.execSQL(
+                "CREATE UNIQUE INDEX `index_remote_playlists_service_id_url` " +
+                    "ON `remote_playlists` (`service_id`, `url`)"
+            )
+
+            // Populate streams table with existing entries in watch history
+            // Latest data first, thus ignoring older entries with the same indices
+            db.execSQL(
+                "INSERT OR IGNORE INTO streams (service_id, url, title, " +
+                    "stream_type, duration, uploader, thumbnail_url) " +
+
+                    "SELECT service_id, url, title, 'VIDEO_STREAM', duration, " +
+                    "uploader, thumbnail_url " +
+
+                    "FROM watch_history " +
+                    "ORDER BY creation_date DESC"
+            )
+
+            // Once the streams have PKs, join them with the normalized history table
+            // and populate it with the remaining data from watch history
+            db.execSQL(
+                "INSERT INTO stream_history (stream_id, access_date, repeat_count)" +
+                    "SELECT uid, creation_date, 1 " +
+                    "FROM watch_history INNER JOIN streams " +
+                    "ON watch_history.service_id == streams.service_id " +
+                    "AND watch_history.url == streams.url " +
+                    "ORDER BY creation_date DESC"
+            )
+
+            db.execSQL("DROP TABLE IF EXISTS watch_history")
+
+            if (isDebug) {
+                Log.d(TAG, "Stop migrating database")
+            }
+        }
+    }
+
+    val MIGRATION_2_3 = object : Migration(DB_VER_2, DB_VER_3) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            // Add NOT NULLs and new fields
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS streams_new " +
+                    "(uid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
+                    "service_id INTEGER NOT NULL, url TEXT NOT NULL, title TEXT NOT NULL, " +
+                    "stream_type TEXT NOT NULL, duration INTEGER NOT NULL, " +
+                    "uploader TEXT NOT NULL, thumbnail_url TEXT, view_count INTEGER, " +
+                    "textual_upload_date TEXT, upload_date INTEGER, " +
+                    "is_upload_date_approximation INTEGER)"
+            )
+
+            db.execSQL(
+                "INSERT INTO streams_new (uid, service_id, url, title, stream_type, " +
+                    "duration, uploader, thumbnail_url, view_count, textual_upload_date, " +
+                    "upload_date, is_upload_date_approximation) " +
+
+                    "SELECT uid, service_id, url, ifnull(title, ''), " +
+                    "ifnull(stream_type, 'VIDEO_STREAM'), ifnull(duration, 0), " +
+                    "ifnull(uploader, ''), ifnull(thumbnail_url, ''), NULL, NULL, NULL, NULL " +
+
+                    "FROM streams WHERE url IS NOT NULL"
+            )
+
+            db.execSQL("DROP TABLE streams")
+            db.execSQL("ALTER TABLE streams_new RENAME TO streams")
+            db.execSQL(
+                "CREATE UNIQUE INDEX index_streams_service_id_url " +
+                    "ON streams (service_id, url)"
+            )
+
+            // Tables for feed feature
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS feed " +
+                    "(stream_id INTEGER NOT NULL, subscription_id INTEGER NOT NULL, " +
+                    "PRIMARY KEY(stream_id, subscription_id), " +
+                    "FOREIGN KEY(stream_id) REFERENCES streams(uid) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, " +
+                    "FOREIGN KEY(subscription_id) REFERENCES subscriptions(uid) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)"
+            )
+            db.execSQL("CREATE INDEX index_feed_subscription_id ON feed (subscription_id)")
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS feed_group " +
+                    "(uid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, name TEXT NOT NULL, " +
+                    "icon_id INTEGER NOT NULL, sort_order INTEGER NOT NULL)"
+            )
+            db.execSQL("CREATE INDEX index_feed_group_sort_order ON feed_group (sort_order)")
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS feed_group_subscription_join " +
+                    "(group_id INTEGER NOT NULL, subscription_id INTEGER NOT NULL, " +
+                    "PRIMARY KEY(group_id, subscription_id), " +
+                    "FOREIGN KEY(group_id) REFERENCES feed_group(uid) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, " +
+                    "FOREIGN KEY(subscription_id) REFERENCES subscriptions(uid) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)"
+            )
+            db.execSQL(
+                "CREATE INDEX index_feed_group_subscription_join_subscription_id " +
+                    "ON feed_group_subscription_join (subscription_id)"
+            )
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS feed_last_updated " +
+                    "(subscription_id INTEGER NOT NULL, last_updated INTEGER, " +
+                    "PRIMARY KEY(subscription_id), " +
+                    "FOREIGN KEY(subscription_id) REFERENCES subscriptions(uid) " +
+                    "ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)"
+            )
+        }
+    }
+
+    val MIGRATION_3_4 = object : Migration(DB_VER_3, DB_VER_4) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL("ALTER TABLE streams ADD COLUMN uploader_url TEXT")
+        }
+    }
+
+    val MIGRATION_4_5 = object : Migration(DB_VER_4, DB_VER_5) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL(
+                "ALTER TABLE `subscriptions` ADD COLUMN `notification_mode` " +
+                    "INTEGER NOT NULL DEFAULT 0"
+            )
+        }
+    }
+
+    val MIGRATION_5_6 = object : Migration(DB_VER_5, DB_VER_6) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL(
+                "ALTER TABLE `playlists` ADD COLUMN `is_thumbnail_permanent` " +
+                    "INTEGER NOT NULL DEFAULT 0"
+            )
+        }
+    }
+
+    val MIGRATION_6_7 = object : Migration(DB_VER_6, DB_VER_7) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            // Create a new column thumbnail_stream_id
+            db.execSQL(
+                "ALTER TABLE `playlists` ADD COLUMN `thumbnail_stream_id` " +
+                    "INTEGER NOT NULL DEFAULT -1"
+            )
+
+            // Migrate the thumbnail_url to the thumbnail_stream_id
+            db.execSQL(
+                "UPDATE playlists SET thumbnail_stream_id = (" +
+                    " SELECT CASE WHEN COUNT(*) != 0 then stream_uid ELSE -1 END" +
+                    " FROM (" +
+                    " SELECT p.uid AS playlist_uid, s.uid AS stream_uid" +
+                    " FROM playlists p" +
+                    " LEFT JOIN playlist_stream_join ps ON p.uid = ps.playlist_id" +
+                    " LEFT JOIN streams s ON s.uid = ps.stream_id" +
+                    " WHERE s.thumbnail_url = p.thumbnail_url) AS temporary_table" +
+                    " WHERE playlist_uid = playlists.uid)"
+            )
+
+            // Remove the thumbnail_url field in the playlist table
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS `playlists_new`" +
+                    "(uid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
+                    "name TEXT, " +
+                    "is_thumbnail_permanent INTEGER NOT NULL, " +
+                    "thumbnail_stream_id INTEGER NOT NULL)"
+            )
+
+            db.execSQL(
+                "INSERT INTO playlists_new" +
+                    " SELECT uid, name, is_thumbnail_permanent, thumbnail_stream_id " +
+                    " FROM playlists"
+            )
+
+            db.execSQL("DROP TABLE playlists")
+            db.execSQL("ALTER TABLE playlists_new RENAME TO playlists")
+            db.execSQL(
+                "CREATE INDEX IF NOT EXISTS " +
+                    "`index_playlists_name` ON `playlists` (`name`)"
+            )
+        }
+    }
+
+    val MIGRATION_7_8 = object : Migration(DB_VER_7, DB_VER_8) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL(
+                "DELETE FROM search_history WHERE id NOT IN (SELECT id FROM (SELECT " +
+                    "MIN(id) as id FROM search_history GROUP BY trim(search), service_id ) tmp)"
+            )
+            db.execSQL("UPDATE search_history SET search = trim(search)")
+        }
+    }
+
+    val MIGRATION_8_9 = object : Migration(DB_VER_8, DB_VER_9) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            try {
+                db.beginTransaction()
+
+                // Update playlists.
+                // Create a temp table to initialize display_index.
+                db.execSQL(
+                    "CREATE TABLE `playlists_tmp` " +
+                        "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
+                        "`name` TEXT, `is_thumbnail_permanent` INTEGER NOT NULL, " +
+                        "`thumbnail_stream_id` INTEGER NOT NULL, " +
+                        "`display_index` INTEGER NOT NULL)"
+                )
+                db.execSQL(
+                    "INSERT INTO `playlists_tmp` " +
+                        "(`uid`, `name`, `is_thumbnail_permanent`, `thumbnail_stream_id`, " +
+                        "`display_index`) " +
+                        "SELECT `uid`, `name`, `is_thumbnail_permanent`, `thumbnail_stream_id`, " +
+                        "-1 " +
+                        "FROM `playlists`"
+                )
+
+                // Replace the old table, note that this also removes the index on the name which
+                // we don't need anymore.
+                db.execSQL("DROP TABLE `playlists`")
+                db.execSQL("ALTER TABLE `playlists_tmp` RENAME TO `playlists`")
+
+                // Update remote_playlists.
+                // Create a temp table to initialize display_index.
+                db.execSQL(
+                    "CREATE TABLE `remote_playlists_tmp` " +
+                        "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
+                        "`service_id` INTEGER NOT NULL, `name` TEXT, `url` TEXT, " +
+                        "`thumbnail_url` TEXT, `uploader` TEXT, " +
+                        "`display_index` INTEGER NOT NULL," +
+                        "`stream_count` INTEGER)"
+                )
+                db.execSQL(
+                    "INSERT INTO `remote_playlists_tmp` (`uid`, `service_id`, " +
+                        "`name`, `url`, `thumbnail_url`, `uploader`, `display_index`, " +
+                        "`stream_count`)" +
+                        "SELECT `uid`, `service_id`, `name`, `url`, `thumbnail_url`, `uploader`, " +
+                        "-1, `stream_count` FROM `remote_playlists`"
+                )
+
+                // Replace the old table, note that this also removes the index on the name which
+                // we don't need anymore.
+                db.execSQL("DROP TABLE `remote_playlists`")
+                db.execSQL("ALTER TABLE `remote_playlists_tmp` RENAME TO `remote_playlists`")
+
+                // Create index on the new table.
+                db.execSQL(
+                    "CREATE UNIQUE INDEX `index_remote_playlists_service_id_url` " +
+                        "ON `remote_playlists` (`service_id`, `url`)"
+                )
+
+                db.setTransactionSuccessful()
+            } finally {
+                db.endTransaction()
+            }
+        }
+    }
+}

app/src/main/java/org/schabi/newpipe/database/feed/dao/FeedDAO.kt

@@ -168,10 +168,10 @@ abstract class FeedDAO {
         ON fgs.subscription_id = lu.subscription_id AND fgs.group_id = :groupId
         """
     )
-    abstract fun oldestSubscriptionUpdate(groupId: Long): Flowable<List<OffsetDateTime>>
+    abstract fun oldestSubscriptionUpdate(groupId: Long): Flowable<List<OffsetDateTime?>>
 
     @Query("SELECT MIN(last_updated) FROM feed_last_updated")
-    abstract fun oldestSubscriptionUpdateFromAll(): Flowable<List<OffsetDateTime>>
+    abstract fun oldestSubscriptionUpdateFromAll(): Flowable<List<OffsetDateTime?>>
 
     @Query("SELECT COUNT(*) FROM feed_last_updated WHERE last_updated IS NULL")
     abstract fun notLoadedCount(): Flowable<Long>

app/src/main/java/org/schabi/newpipe/database/history/dao/HistoryDAO.java

@@ -1,7 +0,0 @@
-package org.schabi.newpipe.database.history.dao;
-
-import org.schabi.newpipe.database.BasicDAO;
-
-public interface HistoryDAO<T> extends BasicDAO<T> {
-    T getLatestEntry();
-}

app/src/main/java/org/schabi/newpipe/database/history/dao/HistoryDAO.kt

@@ -0,0 +1,13 @@
+/*
+ * SPDX-FileCopyrightText: 2017 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.history.dao
+
+import org.schabi.newpipe.database.BasicDAO
+
+interface HistoryDAO<T> : BasicDAO<T> {
+    val latestEntry: T
+}

app/src/main/java/org/schabi/newpipe/database/history/dao/SearchHistoryDAO.java

@@ -1,52 +0,0 @@
-package org.schabi.newpipe.database.history.dao;
-
-import androidx.annotation.Nullable;
-import androidx.room.Dao;
-import androidx.room.Query;
-
-import org.schabi.newpipe.database.history.model.SearchHistoryEntry;
-
-import java.util.List;
-
-import io.reactivex.rxjava3.core.Flowable;
-
-import static org.schabi.newpipe.database.history.model.SearchHistoryEntry.CREATION_DATE;
-import static org.schabi.newpipe.database.history.model.SearchHistoryEntry.ID;
-import static org.schabi.newpipe.database.history.model.SearchHistoryEntry.SEARCH;
-import static org.schabi.newpipe.database.history.model.SearchHistoryEntry.SERVICE_ID;
-import static org.schabi.newpipe.database.history.model.SearchHistoryEntry.TABLE_NAME;
-
-@Dao
-public interface SearchHistoryDAO extends HistoryDAO<SearchHistoryEntry> {
-    String ORDER_BY_CREATION_DATE = " ORDER BY " + CREATION_DATE + " DESC";
-    String ORDER_BY_MAX_CREATION_DATE = " ORDER BY MAX(" + CREATION_DATE + ") DESC";
-
-    @Query("SELECT * FROM " + TABLE_NAME
-            + " WHERE " + ID + " = (SELECT MAX(" + ID + ") FROM " + TABLE_NAME + ")")
-    @Nullable
-    SearchHistoryEntry getLatestEntry();
-
-    @Query("DELETE FROM " + TABLE_NAME)
-    @Override
-    int deleteAll();
-
-    @Query("DELETE FROM " + TABLE_NAME + " WHERE " + SEARCH + " = :query")
-    int deleteAllWhereQuery(String query);
-
-    @Query("SELECT * FROM " + TABLE_NAME + ORDER_BY_CREATION_DATE)
-    @Override
-    Flowable<List<SearchHistoryEntry>> getAll();
-
-    @Query("SELECT " + SEARCH + " FROM " + TABLE_NAME + " GROUP BY " + SEARCH
-            + ORDER_BY_MAX_CREATION_DATE + " LIMIT :limit")
-    Flowable<List<String>> getUniqueEntries(int limit);
-
-    @Query("SELECT * FROM " + TABLE_NAME
-            + " WHERE " + SERVICE_ID + " = :serviceId" + ORDER_BY_CREATION_DATE)
-    @Override
-    Flowable<List<SearchHistoryEntry>> listByService(int serviceId);
-
-    @Query("SELECT " + SEARCH + " FROM " + TABLE_NAME + " WHERE " + SEARCH + " LIKE :query || '%'"
-            + " GROUP BY " + SEARCH + ORDER_BY_MAX_CREATION_DATE + " LIMIT :limit")
-    Flowable<List<String>> getSimilarEntries(String query, int limit);
-}

app/src/main/java/org/schabi/newpipe/database/history/dao/SearchHistoryDAO.kt

@@ -0,0 +1,42 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2021 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.history.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import io.reactivex.rxjava3.core.Flowable
+import org.schabi.newpipe.database.history.model.SearchHistoryEntry
+
+@Dao
+interface SearchHistoryDAO : HistoryDAO<SearchHistoryEntry> {
+
+    @get:Query("SELECT * FROM search_history WHERE id = (SELECT MAX(id) FROM search_history)")
+    override val latestEntry: SearchHistoryEntry
+
+    @Query("DELETE FROM search_history")
+    override fun deleteAll(): Int
+
+    @Query("DELETE FROM search_history WHERE search = :query")
+    fun deleteAllWhereQuery(query: String): Int
+
+    @Query("SELECT * FROM search_history ORDER BY creation_date DESC")
+    override fun getAll(): Flowable<List<SearchHistoryEntry>>
+
+    @Query("SELECT search FROM search_history GROUP BY search ORDER BY MAX(creation_date) DESC LIMIT :limit")
+    fun getUniqueEntries(limit: Int): Flowable<MutableList<String>>
+
+    @Query("SELECT * FROM search_history WHERE service_id = :serviceId ORDER BY creation_date DESC")
+    override fun listByService(serviceId: Int): Flowable<List<SearchHistoryEntry>>
+
+    @Query(
+        """
+        SELECT search FROM search_history WHERE search LIKE :query ||
+        '%' GROUP BY search ORDER BY MAX(creation_date) DESC LIMIT :limit
+        """
+    )
+    fun getSimilarEntries(query: String, limit: Int): Flowable<MutableList<String>>
+}

app/src/main/java/org/schabi/newpipe/database/history/dao/StreamHistoryDAO.java

@@ -1,89 +0,0 @@
-package org.schabi.newpipe.database.history.dao;
-
-import androidx.annotation.Nullable;
-import androidx.room.Dao;
-import androidx.room.Query;
-import androidx.room.RewriteQueriesToDropUnusedColumns;
-
-import org.schabi.newpipe.database.history.model.StreamHistoryEntity;
-import org.schabi.newpipe.database.history.model.StreamHistoryEntry;
-import org.schabi.newpipe.database.stream.StreamStatisticsEntry;
-
-import java.util.List;
-
-import io.reactivex.rxjava3.core.Flowable;
-
-import static org.schabi.newpipe.database.history.model.StreamHistoryEntity.JOIN_STREAM_ID;
-import static org.schabi.newpipe.database.history.model.StreamHistoryEntity.STREAM_ACCESS_DATE;
-import static org.schabi.newpipe.database.history.model.StreamHistoryEntity.STREAM_HISTORY_TABLE;
-import static org.schabi.newpipe.database.history.model.StreamHistoryEntity.STREAM_REPEAT_COUNT;
-import static org.schabi.newpipe.database.stream.StreamStatisticsEntry.STREAM_LATEST_DATE;
-import static org.schabi.newpipe.database.stream.StreamStatisticsEntry.STREAM_WATCH_COUNT;
-import static org.schabi.newpipe.database.stream.model.StreamEntity.STREAM_ID;
-import static org.schabi.newpipe.database.stream.model.StreamEntity.STREAM_TABLE;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.JOIN_STREAM_ID_ALIAS;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_PROGRESS_MILLIS;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_STATE_TABLE;
-
-@Dao
-public abstract class StreamHistoryDAO implements HistoryDAO<StreamHistoryEntity> {
-    @Query("SELECT * FROM " + STREAM_HISTORY_TABLE
-            + " WHERE " + STREAM_ACCESS_DATE + " = "
-            + "(SELECT MAX(" + STREAM_ACCESS_DATE + ") FROM " + STREAM_HISTORY_TABLE + ")")
-    @Override
-    @Nullable
-    public abstract StreamHistoryEntity getLatestEntry();
-
-    @Override
-    @Query("SELECT * FROM " + STREAM_HISTORY_TABLE)
-    public abstract Flowable<List<StreamHistoryEntity>> getAll();
-
-    @Override
-    @Query("DELETE FROM " + STREAM_HISTORY_TABLE)
-    public abstract int deleteAll();
-
-    @Override
-    public Flowable<List<StreamHistoryEntity>> listByService(final int serviceId) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Query("SELECT * FROM " + STREAM_TABLE
-            + " INNER JOIN " + STREAM_HISTORY_TABLE
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID
-            + " ORDER BY " + STREAM_ACCESS_DATE + " DESC")
-    public abstract Flowable<List<StreamHistoryEntry>> getHistory();
-
-
-    @Query("SELECT * FROM " + STREAM_TABLE
-            + " INNER JOIN " + STREAM_HISTORY_TABLE
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID
-            + " ORDER BY " + STREAM_ID + " ASC")
-    public abstract Flowable<List<StreamHistoryEntry>> getHistorySortedById();
-
-    @Query("SELECT * FROM " + STREAM_HISTORY_TABLE + " WHERE " + JOIN_STREAM_ID
-            + " = :streamId ORDER BY " + STREAM_ACCESS_DATE + " DESC LIMIT 1")
-    @Nullable
-    public abstract StreamHistoryEntity getLatestEntry(long streamId);
-
-    @Query("DELETE FROM " + STREAM_HISTORY_TABLE + " WHERE " + JOIN_STREAM_ID + " = :streamId")
-    public abstract int deleteStreamHistory(long streamId);
-
-    @RewriteQueriesToDropUnusedColumns
-    @Query("SELECT * FROM " + STREAM_TABLE
-
-            // Select the latest entry and watch count for each stream id on history table
-            + " INNER JOIN "
-            + "(SELECT " + JOIN_STREAM_ID + ", "
-            + "  MAX(" + STREAM_ACCESS_DATE + ") AS " + STREAM_LATEST_DATE + ", "
-            + "  SUM(" + STREAM_REPEAT_COUNT + ") AS " + STREAM_WATCH_COUNT
-            + " FROM " + STREAM_HISTORY_TABLE + " GROUP BY " + JOIN_STREAM_ID + ")"
-
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID
-
-            + " LEFT JOIN "
-            + "(SELECT " + JOIN_STREAM_ID + " AS " + JOIN_STREAM_ID_ALIAS + ", "
-            + STREAM_PROGRESS_MILLIS
-            + " FROM " + STREAM_STATE_TABLE + " )"
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID_ALIAS)
-    public abstract Flowable<List<StreamStatisticsEntry>> getStatistics();
-}

app/src/main/java/org/schabi/newpipe/database/history/dao/StreamHistoryDAO.kt

@@ -0,0 +1,63 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2022 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.history.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import androidx.room.RewriteQueriesToDropUnusedColumns
+import io.reactivex.rxjava3.core.Flowable
+import org.schabi.newpipe.database.history.model.StreamHistoryEntity
+import org.schabi.newpipe.database.history.model.StreamHistoryEntry
+import org.schabi.newpipe.database.stream.StreamStatisticsEntry
+
+@Dao
+abstract class StreamHistoryDAO : HistoryDAO<StreamHistoryEntity> {
+
+    @get:Query("SELECT * FROM stream_history WHERE access_date = (SELECT MAX(access_date) FROM stream_history)")
+    abstract override val latestEntry: StreamHistoryEntity
+
+    @Query("SELECT * FROM stream_history")
+    abstract override fun getAll(): Flowable<List<StreamHistoryEntity>>
+
+    @Query("DELETE FROM stream_history")
+    abstract override fun deleteAll(): Int
+
+    override fun listByService(serviceId: Int): Flowable<List<StreamHistoryEntity>> {
+        throw UnsupportedOperationException()
+    }
+
+    @get:Query("SELECT * FROM streams INNER JOIN stream_history ON uid = stream_id ORDER BY access_date DESC")
+    abstract val history: Flowable<MutableList<StreamHistoryEntry>>
+
+    @get:Query("SELECT * FROM streams INNER JOIN stream_history ON uid = stream_id ORDER BY uid ASC")
+    abstract val historySortedById: Flowable<MutableList<StreamHistoryEntry>>
+
+    @Query("SELECT * FROM stream_history WHERE stream_id = :streamId ORDER BY access_date DESC LIMIT 1")
+    abstract fun getLatestEntry(streamId: Long): StreamHistoryEntity
+
+    @Query("DELETE FROM stream_history WHERE stream_id = :streamId")
+    abstract fun deleteStreamHistory(streamId: Long): Int
+
+    // Select the latest entry and watch count for each stream id on history table
+    @RewriteQueriesToDropUnusedColumns
+    @Query(
+        """
+        SELECT * FROM streams
+
+        INNER JOIN (
+            SELECT stream_id, MAX(access_date) AS latestAccess, SUM(repeat_count) AS watchCount
+            FROM stream_history
+            GROUP BY stream_id
+        )
+        ON uid = stream_id
+
+        LEFT JOIN (SELECT stream_id AS stream_id_alias, progress_time FROM stream_state )
+        ON uid = stream_id_alias
+        """
+    )
+    abstract fun getStatistics(): Flowable<MutableList<StreamStatisticsEntry>>
+}

app/src/main/java/org/schabi/newpipe/database/history/model/SearchHistoryEntry.kt

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2022 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
 package org.schabi.newpipe.database.history.model
 
 import androidx.room.ColumnInfo
@@ -11,23 +17,24 @@ import java.time.OffsetDateTime
     tableName = SearchHistoryEntry.TABLE_NAME,
     indices = [Index(value = [SearchHistoryEntry.SEARCH])]
 )
-data class SearchHistoryEntry(
-    @field:ColumnInfo(name = CREATION_DATE) var creationDate: OffsetDateTime?,
-    @field:ColumnInfo(
-        name = SERVICE_ID
-    ) var serviceId: Int,
-    @field:ColumnInfo(name = SEARCH) var search: String?
-) {
+data class SearchHistoryEntry @JvmOverloads constructor(
+    @ColumnInfo(name = CREATION_DATE)
+    var creationDate: OffsetDateTime?,
+
+    @ColumnInfo(name = SERVICE_ID)
+    val serviceId: Int,
+
+    @ColumnInfo(name = SEARCH)
+    val search: String?,
+
     @ColumnInfo(name = ID)
     @PrimaryKey(autoGenerate = true)
-    var id: Long = 0
+    val id: Long = 0,
+) {
 
     @Ignore
     fun hasEqualValues(otherEntry: SearchHistoryEntry): Boolean {
-        return (
-            serviceId == otherEntry.serviceId &&
-                search == otherEntry.search
-            )
+        return serviceId == otherEntry.serviceId && search == otherEntry.search
     }
 
     companion object {

app/src/main/java/org/schabi/newpipe/database/history/model/StreamHistoryEntity.java

@@ -1,81 +0,0 @@
-package org.schabi.newpipe.database.history.model;
-
-import androidx.annotation.NonNull;
-import androidx.room.ColumnInfo;
-import androidx.room.Entity;
-import androidx.room.ForeignKey;
-import androidx.room.Index;
-
-import org.schabi.newpipe.database.stream.model.StreamEntity;
-
-import java.time.OffsetDateTime;
-
-import static androidx.room.ForeignKey.CASCADE;
-import static org.schabi.newpipe.database.history.model.StreamHistoryEntity.JOIN_STREAM_ID;
-import static org.schabi.newpipe.database.history.model.StreamHistoryEntity.STREAM_ACCESS_DATE;
-import static org.schabi.newpipe.database.history.model.StreamHistoryEntity.STREAM_HISTORY_TABLE;
-
-@Entity(tableName = STREAM_HISTORY_TABLE,
-        primaryKeys = {JOIN_STREAM_ID, STREAM_ACCESS_DATE},
-        // No need to index for timestamp as they will almost always be unique
-        indices = {@Index(value = {JOIN_STREAM_ID})},
-        foreignKeys = {
-                @ForeignKey(entity = StreamEntity.class,
-                        parentColumns = StreamEntity.STREAM_ID,
-                        childColumns = JOIN_STREAM_ID,
-                        onDelete = CASCADE, onUpdate = CASCADE)
-        })
-public class StreamHistoryEntity {
-    public static final String STREAM_HISTORY_TABLE = "stream_history";
-    public static final String JOIN_STREAM_ID = "stream_id";
-    public static final String STREAM_ACCESS_DATE = "access_date";
-    public static final String STREAM_REPEAT_COUNT = "repeat_count";
-
-    @ColumnInfo(name = JOIN_STREAM_ID)
-    private long streamUid;
-
-    @NonNull
-    @ColumnInfo(name = STREAM_ACCESS_DATE)
-    private OffsetDateTime accessDate;
-
-    @ColumnInfo(name = STREAM_REPEAT_COUNT)
-    private long repeatCount;
-
-    /**
-     * @param streamUid the stream id this history item will refer to
-     * @param accessDate the last time the stream was accessed
-     * @param repeatCount the total number of views this stream received
-     */
-    public StreamHistoryEntity(final long streamUid,
-                               @NonNull final OffsetDateTime accessDate,
-                               final long repeatCount) {
-        this.streamUid = streamUid;
-        this.accessDate = accessDate;
-        this.repeatCount = repeatCount;
-    }
-
-    public long getStreamUid() {
-        return streamUid;
-    }
-
-    public void setStreamUid(final long streamUid) {
-        this.streamUid = streamUid;
-    }
-
-    @NonNull
-    public OffsetDateTime getAccessDate() {
-        return accessDate;
-    }
-
-    public void setAccessDate(@NonNull final OffsetDateTime accessDate) {
-        this.accessDate = accessDate;
-    }
-
-    public long getRepeatCount() {
-        return repeatCount;
-    }
-
-    public void setRepeatCount(final long repeatCount) {
-        this.repeatCount = repeatCount;
-    }
-}

app/src/main/java/org/schabi/newpipe/database/history/model/StreamHistoryEntity.kt

@@ -0,0 +1,56 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2022 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.history.model
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.ForeignKey.Companion.CASCADE
+import androidx.room.Index
+import org.schabi.newpipe.database.history.model.StreamHistoryEntity.Companion.JOIN_STREAM_ID
+import org.schabi.newpipe.database.history.model.StreamHistoryEntity.Companion.STREAM_ACCESS_DATE
+import org.schabi.newpipe.database.history.model.StreamHistoryEntity.Companion.STREAM_HISTORY_TABLE
+import org.schabi.newpipe.database.stream.model.StreamEntity
+import org.schabi.newpipe.database.stream.model.StreamEntity.Companion.STREAM_ID
+import java.time.OffsetDateTime
+
+/**
+ * @param streamUid the stream id this history item will refer to
+ * @param accessDate the last time the stream was accessed
+ * @param repeatCount the total number of views this stream received
+ */
+@Entity(
+    tableName = STREAM_HISTORY_TABLE,
+    primaryKeys = [JOIN_STREAM_ID, STREAM_ACCESS_DATE],
+    indices = [Index(value = [JOIN_STREAM_ID])],
+    foreignKeys = [
+        ForeignKey(
+            entity = StreamEntity::class,
+            parentColumns = arrayOf(STREAM_ID),
+            childColumns = arrayOf(JOIN_STREAM_ID),
+            onDelete = CASCADE,
+            onUpdate = CASCADE
+        )
+    ]
+)
+data class StreamHistoryEntity(
+    @ColumnInfo(name = JOIN_STREAM_ID)
+    val streamUid: Long,
+
+    @ColumnInfo(name = STREAM_ACCESS_DATE)
+    var accessDate: OffsetDateTime,
+
+    @ColumnInfo(name = STREAM_REPEAT_COUNT)
+    var repeatCount: Long
+) {
+    companion object {
+        const val STREAM_HISTORY_TABLE: String = "stream_history"
+        const val STREAM_ACCESS_DATE: String = "access_date"
+        const val JOIN_STREAM_ID: String = "stream_id"
+        const val STREAM_REPEAT_COUNT: String = "repeat_count"
+    }
+}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistDuplicatesEntry.java

@@ -1,29 +0,0 @@
-package org.schabi.newpipe.database.playlist;
-
-import androidx.room.ColumnInfo;
-
-/**
- * This class adds a field to {@link PlaylistMetadataEntry} that contains an integer representing
- * how many times a specific stream is already contained inside a local playlist. Used to be able
- * to grey out playlists which already contain the current stream in the playlist append dialog.
- * @see org.schabi.newpipe.local.playlist.LocalPlaylistManager#getPlaylistDuplicates(String)
- */
-public class PlaylistDuplicatesEntry extends PlaylistMetadataEntry {
-    public static final String PLAYLIST_TIMES_STREAM_IS_CONTAINED = "timesStreamIsContained";
-    @ColumnInfo(name = PLAYLIST_TIMES_STREAM_IS_CONTAINED)
-    public final long timesStreamIsContained;
-
-    @SuppressWarnings("checkstyle:ParameterNumber")
-    public PlaylistDuplicatesEntry(final long uid,
-                                   final String name,
-                                   final String thumbnailUrl,
-                                   final boolean isThumbnailPermanent,
-                                   final long thumbnailStreamId,
-                                   final long displayIndex,
-                                   final long streamCount,
-                                   final long timesStreamIsContained) {
-        super(uid, name, thumbnailUrl, isThumbnailPermanent, thumbnailStreamId, displayIndex,
-                streamCount);
-        this.timesStreamIsContained = timesStreamIsContained;
-    }
-}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistDuplicatesEntry.kt

@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: 2023-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist
+
+import androidx.room.ColumnInfo
+import org.schabi.newpipe.database.playlist.model.PlaylistEntity
+
+/**
+ * This class adds a field to [PlaylistMetadataEntry] that contains an integer representing
+ * how many times a specific stream is already contained inside a local playlist. Used to be able
+ * to grey out playlists which already contain the current stream in the playlist append dialog.
+ * @see org.schabi.newpipe.local.playlist.LocalPlaylistManager.getPlaylistDuplicates
+ */
+data class PlaylistDuplicatesEntry(
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_ID)
+    override val uid: Long,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_THUMBNAIL_URL)
+    override val thumbnailUrl: String?,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_THUMBNAIL_PERMANENT)
+    override val isThumbnailPermanent: Boolean?,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_THUMBNAIL_STREAM_ID)
+    override val thumbnailStreamId: Long?,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_DISPLAY_INDEX)
+    override var displayIndex: Long?,
+
+    @ColumnInfo(name = PLAYLIST_STREAM_COUNT)
+    override val streamCount: Long,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_NAME)
+    override val orderingName: String?,
+
+    @ColumnInfo(name = PLAYLIST_TIMES_STREAM_IS_CONTAINED)
+    val timesStreamIsContained: Long
+) : PlaylistMetadataEntry(
+    uid = uid,
+    orderingName = orderingName,
+    thumbnailUrl = thumbnailUrl,
+    isThumbnailPermanent = isThumbnailPermanent,
+    thumbnailStreamId = thumbnailStreamId,
+    displayIndex = displayIndex,
+    streamCount = streamCount
+) {
+    companion object {
+        const val PLAYLIST_TIMES_STREAM_IS_CONTAINED: String = "timesStreamIsContained"
+    }
+}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistLocalItem.java

@@ -1,18 +0,0 @@
-package org.schabi.newpipe.database.playlist;
-
-import androidx.annotation.Nullable;
-
-import org.schabi.newpipe.database.LocalItem;
-
-public interface PlaylistLocalItem extends LocalItem {
-    String getOrderingName();
-
-    long getDisplayIndex();
-
-    long getUid();
-
-    void setDisplayIndex(long displayIndex);
-
-    @Nullable
-    String getThumbnailUrl();
-}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistLocalItem.kt

@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2025 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist
+
+import org.schabi.newpipe.database.LocalItem
+
+interface PlaylistLocalItem : LocalItem {
+    val orderingName: String?
+    val displayIndex: Long?
+    val uid: Long
+    val thumbnailUrl: String?
+}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistMetadataEntry.java

@@ -1,82 +0,0 @@
-package org.schabi.newpipe.database.playlist;
-
-import androidx.room.ColumnInfo;
-
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_DISPLAY_INDEX;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_NAME;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_PERMANENT;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_STREAM_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_URL;
-
-import androidx.annotation.Nullable;
-
-public class PlaylistMetadataEntry implements PlaylistLocalItem {
-    public static final String PLAYLIST_STREAM_COUNT = "streamCount";
-
-    @ColumnInfo(name = PLAYLIST_ID)
-    private final long uid;
-    @ColumnInfo(name = PLAYLIST_NAME)
-    public final String name;
-    @ColumnInfo(name = PLAYLIST_THUMBNAIL_PERMANENT)
-    private final boolean isThumbnailPermanent;
-    @ColumnInfo(name = PLAYLIST_THUMBNAIL_STREAM_ID)
-    private final long thumbnailStreamId;
-    @ColumnInfo(name = PLAYLIST_THUMBNAIL_URL)
-    public final String thumbnailUrl;
-    @ColumnInfo(name = PLAYLIST_DISPLAY_INDEX)
-    private long displayIndex;
-    @ColumnInfo(name = PLAYLIST_STREAM_COUNT)
-    public final long streamCount;
-
-    public PlaylistMetadataEntry(final long uid, final String name, final String thumbnailUrl,
-                                 final boolean isThumbnailPermanent, final long thumbnailStreamId,
-                                 final long displayIndex, final long streamCount) {
-        this.uid = uid;
-        this.name = name;
-        this.thumbnailUrl = thumbnailUrl;
-        this.isThumbnailPermanent = isThumbnailPermanent;
-        this.thumbnailStreamId = thumbnailStreamId;
-        this.displayIndex = displayIndex;
-        this.streamCount = streamCount;
-    }
-
-    @Override
-    public LocalItemType getLocalItemType() {
-        return LocalItemType.PLAYLIST_LOCAL_ITEM;
-    }
-
-    @Override
-    public String getOrderingName() {
-        return name;
-    }
-
-    public boolean isThumbnailPermanent() {
-        return isThumbnailPermanent;
-    }
-
-    public long getThumbnailStreamId() {
-        return thumbnailStreamId;
-    }
-
-    @Override
-    public long getDisplayIndex() {
-        return displayIndex;
-    }
-
-    @Override
-    public long getUid() {
-        return uid;
-    }
-
-    @Override
-    public void setDisplayIndex(final long displayIndex) {
-        this.displayIndex = displayIndex;
-    }
-
-    @Nullable
-    @Override
-    public String getThumbnailUrl() {
-        return thumbnailUrl;
-    }
-}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistMetadataEntry.kt

@@ -0,0 +1,42 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2025 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist
+
+import androidx.room.ColumnInfo
+import org.schabi.newpipe.database.LocalItem.LocalItemType
+import org.schabi.newpipe.database.playlist.model.PlaylistEntity
+
+open class PlaylistMetadataEntry(
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_ID)
+    override val uid: Long,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_NAME)
+    override val orderingName: String?,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_THUMBNAIL_URL)
+    override val thumbnailUrl: String?,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_DISPLAY_INDEX)
+    override var displayIndex: Long?,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_THUMBNAIL_PERMANENT)
+    open val isThumbnailPermanent: Boolean?,
+
+    @ColumnInfo(name = PlaylistEntity.PLAYLIST_THUMBNAIL_STREAM_ID)
+    open val thumbnailStreamId: Long?,
+
+    @ColumnInfo(name = PLAYLIST_STREAM_COUNT)
+    open val streamCount: Long
+) : PlaylistLocalItem {
+
+    override val localItemType: LocalItemType
+        get() = LocalItemType.PLAYLIST_LOCAL_ITEM
+
+    companion object {
+        const val PLAYLIST_STREAM_COUNT: String = "streamCount"
+    }
+}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistStreamEntry.kt

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2023 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
 package org.schabi.newpipe.database.playlist
 
 import androidx.room.ColumnInfo
@@ -23,18 +29,21 @@ data class PlaylistStreamEntry(
     val joinIndex: Int
 ) : LocalItem {
 
+    override val localItemType: LocalItem.LocalItemType
+        get() = LocalItem.LocalItemType.PLAYLIST_STREAM_ITEM
+
     @Throws(IllegalArgumentException::class)
     fun toStreamInfoItem(): StreamInfoItem {
-        val item = StreamInfoItem(streamEntity.serviceId, streamEntity.url, streamEntity.title, streamEntity.streamType)
-        item.duration = streamEntity.duration
-        item.uploaderName = streamEntity.uploader
-        item.uploaderUrl = streamEntity.uploaderUrl
-        item.thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
-
-        return item
-    }
-
-    override fun getLocalItemType(): LocalItem.LocalItemType {
-        return LocalItem.LocalItemType.PLAYLIST_STREAM_ITEM
+        return StreamInfoItem(
+            streamEntity.serviceId,
+            streamEntity.url,
+            streamEntity.title,
+            streamEntity.streamType
+        ).apply {
+            duration = streamEntity.duration
+            uploaderName = streamEntity.uploader
+            uploaderUrl = streamEntity.uploaderUrl
+            thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
+        }
     }
 }

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistDAO.java

@@ -1,53 +0,0 @@
-package org.schabi.newpipe.database.playlist.dao;
-
-import androidx.room.Dao;
-import androidx.room.Query;
-import androidx.room.Transaction;
-
-import org.schabi.newpipe.database.BasicDAO;
-import org.schabi.newpipe.database.playlist.model.PlaylistEntity;
-
-import java.util.List;
-
-import io.reactivex.rxjava3.core.Flowable;
-
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_TABLE;
-
-@Dao
-public interface PlaylistDAO extends BasicDAO<PlaylistEntity> {
-    @Override
-    @Query("SELECT * FROM " + PLAYLIST_TABLE)
-    Flowable<List<PlaylistEntity>> getAll();
-
-    @Override
-    @Query("DELETE FROM " + PLAYLIST_TABLE)
-    int deleteAll();
-
-    @Override
-    default Flowable<List<PlaylistEntity>> listByService(final int serviceId) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Query("SELECT * FROM " + PLAYLIST_TABLE + " WHERE " + PLAYLIST_ID + " = :playlistId")
-    Flowable<List<PlaylistEntity>> getPlaylist(long playlistId);
-
-    @Query("DELETE FROM " + PLAYLIST_TABLE + " WHERE " + PLAYLIST_ID + " = :playlistId")
-    int deletePlaylist(long playlistId);
-
-    @Query("SELECT COUNT(*) FROM " + PLAYLIST_TABLE)
-    Flowable<Long> getCount();
-
-    @Transaction
-    default long upsertPlaylist(final PlaylistEntity playlist) {
-        final long playlistId = playlist.getUid();
-
-        if (playlistId == -1) {
-            // This situation is probably impossible.
-            return insert(playlist);
-        } else {
-            update(playlist);
-            return playlistId;
-        }
-    }
-}

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistDAO.kt

@@ -0,0 +1,48 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2022 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import androidx.room.Transaction
+import io.reactivex.rxjava3.core.Flowable
+import org.schabi.newpipe.database.BasicDAO
+import org.schabi.newpipe.database.playlist.model.PlaylistEntity
+
+@Dao
+interface PlaylistDAO : BasicDAO<PlaylistEntity> {
+
+    @Query("SELECT * FROM playlists")
+    override fun getAll(): Flowable<List<PlaylistEntity>>
+
+    @Query("DELETE FROM playlists")
+    override fun deleteAll(): Int
+
+    override fun listByService(serviceId: Int): Flowable<List<PlaylistEntity>> {
+        throw UnsupportedOperationException()
+    }
+
+    @Query("SELECT * FROM playlists WHERE uid = :playlistId")
+    fun getPlaylist(playlistId: Long): Flowable<MutableList<PlaylistEntity>>
+
+    @Query("DELETE FROM playlists WHERE uid = :playlistId")
+    fun deletePlaylist(playlistId: Long): Int
+
+    @get:Query("SELECT COUNT(*) FROM playlists")
+    val count: Flowable<Long>
+
+    @Transaction
+    fun upsertPlaylist(playlist: PlaylistEntity): Long {
+        if (playlist.uid == -1L) {
+            // This situation is probably impossible.
+            return insert(playlist)
+        } else {
+            update(playlist)
+            return playlist.uid
+        }
+    }
+}

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistRemoteDAO.java

@@ -1,68 +0,0 @@
-package org.schabi.newpipe.database.playlist.dao;
-
-import androidx.room.Dao;
-import androidx.room.Query;
-import androidx.room.Transaction;
-
-import org.schabi.newpipe.database.BasicDAO;
-import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
-
-import java.util.List;
-
-import io.reactivex.rxjava3.core.Flowable;
-
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_DISPLAY_INDEX;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_SERVICE_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_TABLE;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_URL;
-
-@Dao
-public interface PlaylistRemoteDAO extends BasicDAO<PlaylistRemoteEntity> {
-    @Override
-    @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE)
-    Flowable<List<PlaylistRemoteEntity>> getAll();
-
-    @Override
-    @Query("DELETE FROM " + REMOTE_PLAYLIST_TABLE)
-    int deleteAll();
-
-    @Override
-    @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE
-            + " WHERE " + REMOTE_PLAYLIST_SERVICE_ID + " = :serviceId")
-    Flowable<List<PlaylistRemoteEntity>> listByService(int serviceId);
-
-    @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE + " WHERE "
-            + REMOTE_PLAYLIST_ID + " = :playlistId")
-    Flowable<PlaylistRemoteEntity> getPlaylist(long playlistId);
-
-    @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE + " WHERE "
-            + REMOTE_PLAYLIST_URL + " = :url AND " + REMOTE_PLAYLIST_SERVICE_ID + " = :serviceId")
-    Flowable<List<PlaylistRemoteEntity>> getPlaylist(long serviceId, String url);
-
-    @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE
-     + " ORDER BY " + REMOTE_PLAYLIST_DISPLAY_INDEX)
-    Flowable<List<PlaylistRemoteEntity>> getPlaylists();
-
-    @Query("SELECT " + REMOTE_PLAYLIST_ID + " FROM " + REMOTE_PLAYLIST_TABLE
-            + " WHERE " + REMOTE_PLAYLIST_URL + " = :url "
-            + "AND " + REMOTE_PLAYLIST_SERVICE_ID + " = :serviceId")
-    Long getPlaylistIdInternal(long serviceId, String url);
-
-    @Transaction
-    default long upsert(final PlaylistRemoteEntity playlist) {
-        final Long playlistId = getPlaylistIdInternal(playlist.getServiceId(), playlist.getUrl());
-
-        if (playlistId == null) {
-            return insert(playlist);
-        } else {
-            playlist.setUid(playlistId);
-            update(playlist);
-            return playlistId;
-        }
-    }
-
-    @Query("DELETE FROM " + REMOTE_PLAYLIST_TABLE
-            + " WHERE " + REMOTE_PLAYLIST_ID + " = :playlistId")
-    int deletePlaylist(long playlistId);
-}

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistRemoteDAO.kt

@@ -0,0 +1,55 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2025 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import androidx.room.Transaction
+import io.reactivex.rxjava3.core.Flowable
+import org.schabi.newpipe.database.BasicDAO
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity
+
+@Dao
+interface PlaylistRemoteDAO : BasicDAO<PlaylistRemoteEntity> {
+
+    @Query("SELECT * FROM remote_playlists")
+    override fun getAll(): Flowable<List<PlaylistRemoteEntity>>
+
+    @Query("DELETE FROM remote_playlists")
+    override fun deleteAll(): Int
+
+    @Query("SELECT * FROM remote_playlists WHERE service_id = :serviceId")
+    override fun listByService(serviceId: Int): Flowable<List<PlaylistRemoteEntity>>
+
+    @Query("SELECT * FROM remote_playlists WHERE uid = :playlistId")
+    fun getPlaylist(playlistId: Long): Flowable<PlaylistRemoteEntity>
+
+    @Query("SELECT * FROM remote_playlists WHERE url = :url AND uid = :serviceId")
+    fun getPlaylist(serviceId: Long, url: String?): Flowable<MutableList<PlaylistRemoteEntity>>
+
+    @get:Query("SELECT * FROM remote_playlists ORDER BY display_index")
+    val playlists: Flowable<MutableList<PlaylistRemoteEntity>>
+
+    @Query("SELECT uid FROM remote_playlists WHERE url = :url AND service_id = :serviceId")
+    fun getPlaylistIdInternal(serviceId: Long, url: String?): Long?
+
+    @Transaction
+    fun upsert(playlist: PlaylistRemoteEntity): Long {
+        val playlistId = getPlaylistIdInternal(playlist.serviceId.toLong(), playlist.url)
+
+        if (playlistId == null) {
+            return insert(playlist)
+        } else {
+            playlist.uid = playlistId
+            update(playlist)
+            return playlistId
+        }
+    }
+
+    @Query("DELETE FROM remote_playlists WHERE uid = :playlistId")
+    fun deletePlaylist(playlistId: Long): Int
+}

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistStreamDAO.java

@@ -1,159 +0,0 @@
-package org.schabi.newpipe.database.playlist.dao;
-
-import androidx.room.Dao;
-import androidx.room.Query;
-import androidx.room.RewriteQueriesToDropUnusedColumns;
-import androidx.room.Transaction;
-
-import org.schabi.newpipe.database.BasicDAO;
-import org.schabi.newpipe.database.playlist.PlaylistDuplicatesEntry;
-import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
-import org.schabi.newpipe.database.playlist.PlaylistStreamEntry;
-import org.schabi.newpipe.database.playlist.model.PlaylistEntity;
-import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity;
-
-import java.util.List;
-
-import io.reactivex.rxjava3.core.Flowable;
-
-import static org.schabi.newpipe.database.playlist.PlaylistDuplicatesEntry.PLAYLIST_TIMES_STREAM_IS_CONTAINED;
-import static org.schabi.newpipe.database.playlist.PlaylistMetadataEntry.PLAYLIST_STREAM_COUNT;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_DISPLAY_INDEX;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.DEFAULT_THUMBNAIL;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_NAME;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_TABLE;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_PERMANENT;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_STREAM_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_URL;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.JOIN_INDEX;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.JOIN_PLAYLIST_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.JOIN_STREAM_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.PLAYLIST_STREAM_JOIN_TABLE;
-import static org.schabi.newpipe.database.stream.model.StreamEntity.STREAM_ID;
-import static org.schabi.newpipe.database.stream.model.StreamEntity.STREAM_TABLE;
-import static org.schabi.newpipe.database.stream.model.StreamEntity.STREAM_THUMBNAIL_URL;
-import static org.schabi.newpipe.database.stream.model.StreamEntity.STREAM_URL;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.JOIN_STREAM_ID_ALIAS;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_PROGRESS_MILLIS;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_STATE_TABLE;
-
-@Dao
-public interface PlaylistStreamDAO extends BasicDAO<PlaylistStreamEntity> {
-    @Override
-    @Query("SELECT * FROM " + PLAYLIST_STREAM_JOIN_TABLE)
-    Flowable<List<PlaylistStreamEntity>> getAll();
-
-    @Override
-    @Query("DELETE FROM " + PLAYLIST_STREAM_JOIN_TABLE)
-    int deleteAll();
-
-    @Override
-    default Flowable<List<PlaylistStreamEntity>> listByService(final int serviceId) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Query("DELETE FROM " + PLAYLIST_STREAM_JOIN_TABLE
-            + " WHERE " + JOIN_PLAYLIST_ID + " = :playlistId")
-    void deleteBatch(long playlistId);
-
-    @Query("SELECT COALESCE(MAX(" + JOIN_INDEX + "), -1)"
-            + " FROM " + PLAYLIST_STREAM_JOIN_TABLE
-            + " WHERE " + JOIN_PLAYLIST_ID + " = :playlistId")
-    Flowable<Integer> getMaximumIndexOf(long playlistId);
-
-    @Query("SELECT CASE WHEN COUNT(*) != 0 then " + STREAM_ID
-            + " ELSE " + PlaylistEntity.DEFAULT_THUMBNAIL_ID + " END"
-            + " FROM " + STREAM_TABLE
-            + " LEFT JOIN " + PLAYLIST_STREAM_JOIN_TABLE
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID
-            + " WHERE " + JOIN_PLAYLIST_ID + " = :playlistId "
-            + " LIMIT 1"
-    )
-    Flowable<Long> getAutomaticThumbnailStreamId(long playlistId);
-
-    @RewriteQueriesToDropUnusedColumns
-    @Transaction
-    @Query("SELECT * FROM " + STREAM_TABLE + " INNER JOIN "
-            // get ids of streams of the given playlist
-            + "(SELECT " + JOIN_STREAM_ID + "," + JOIN_INDEX
-            + " FROM " + PLAYLIST_STREAM_JOIN_TABLE
-            + " WHERE " + JOIN_PLAYLIST_ID + " = :playlistId)"
-
-            // then merge with the stream metadata
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID
-
-            + " LEFT JOIN "
-            + "(SELECT " + JOIN_STREAM_ID + " AS " + JOIN_STREAM_ID_ALIAS + ", "
-            + STREAM_PROGRESS_MILLIS
-            + " FROM " + STREAM_STATE_TABLE + " )"
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID_ALIAS
-
-            + " ORDER BY " + JOIN_INDEX + " ASC")
-    Flowable<List<PlaylistStreamEntry>> getOrderedStreamsOf(long playlistId);
-
-    @Transaction
-    @Query("SELECT " + PLAYLIST_ID + ", " + PLAYLIST_NAME + ", "
-            + PLAYLIST_THUMBNAIL_PERMANENT + ", " + PLAYLIST_THUMBNAIL_STREAM_ID + ", "
-            + PLAYLIST_DISPLAY_INDEX + ", "
-
-            + " CASE WHEN " + PLAYLIST_THUMBNAIL_STREAM_ID + " = "
-            + PlaylistEntity.DEFAULT_THUMBNAIL_ID + " THEN " + "'" + DEFAULT_THUMBNAIL + "'"
-            + " ELSE (SELECT " + STREAM_THUMBNAIL_URL
-            + " FROM " + STREAM_TABLE
-            + " WHERE " + STREAM_TABLE + "." + STREAM_ID + " = " + PLAYLIST_THUMBNAIL_STREAM_ID
-            + " ) END AS " + PLAYLIST_THUMBNAIL_URL + ", "
-
-            + "COALESCE(COUNT(" + JOIN_PLAYLIST_ID + "), 0) AS " + PLAYLIST_STREAM_COUNT
-            + " FROM " + PLAYLIST_TABLE
-            + " LEFT JOIN " + PLAYLIST_STREAM_JOIN_TABLE
-            + " ON " + PLAYLIST_TABLE + "." + PLAYLIST_ID + " = " + JOIN_PLAYLIST_ID
-            + " GROUP BY " + PLAYLIST_ID
-            + " ORDER BY " + PLAYLIST_DISPLAY_INDEX)
-    Flowable<List<PlaylistMetadataEntry>> getPlaylistMetadata();
-
-    @RewriteQueriesToDropUnusedColumns
-    @Transaction
-    @Query("SELECT *, MIN(" + JOIN_INDEX + ")"
-            + " FROM " + STREAM_TABLE + " INNER JOIN"
-            + " (SELECT " + JOIN_STREAM_ID + "," + JOIN_INDEX
-            + " FROM " + PLAYLIST_STREAM_JOIN_TABLE
-            + " WHERE " + JOIN_PLAYLIST_ID + " = :playlistId)"
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID
-            + " LEFT JOIN "
-            + "(SELECT " + JOIN_STREAM_ID + " AS " + JOIN_STREAM_ID_ALIAS + ", "
-            + STREAM_PROGRESS_MILLIS
-            + " FROM " + STREAM_STATE_TABLE + " )"
-            + " ON " + STREAM_ID + " = " + JOIN_STREAM_ID_ALIAS
-            + " GROUP BY " + STREAM_ID
-            + " ORDER BY MIN(" + JOIN_INDEX + ") ASC")
-    Flowable<List<PlaylistStreamEntry>> getStreamsWithoutDuplicates(long playlistId);
-
-    @Transaction
-    @Query("SELECT " + PLAYLIST_TABLE + "." + PLAYLIST_ID + ", " + PLAYLIST_NAME + ", "
-            + PLAYLIST_THUMBNAIL_PERMANENT + ", " + PLAYLIST_THUMBNAIL_STREAM_ID + ", "
-            + PLAYLIST_DISPLAY_INDEX + ", "
-
-            + " CASE WHEN " + PLAYLIST_THUMBNAIL_STREAM_ID + " = "
-            + PlaylistEntity.DEFAULT_THUMBNAIL_ID + " THEN " + "'" + DEFAULT_THUMBNAIL + "'"
-            + " ELSE (SELECT " + STREAM_THUMBNAIL_URL
-            + " FROM " + STREAM_TABLE
-            + " WHERE " + STREAM_TABLE + "." + STREAM_ID + " = " + PLAYLIST_THUMBNAIL_STREAM_ID
-            + " ) END AS " + PLAYLIST_THUMBNAIL_URL + ", "
-
-            + "COALESCE(COUNT(" + JOIN_PLAYLIST_ID + "), 0) AS " + PLAYLIST_STREAM_COUNT + ", "
-            + "COALESCE(SUM(" + STREAM_URL + " = :streamUrl), 0) AS "
-                + PLAYLIST_TIMES_STREAM_IS_CONTAINED
-
-            + " FROM " + PLAYLIST_TABLE
-            + " LEFT JOIN " + PLAYLIST_STREAM_JOIN_TABLE
-            + " ON " + PLAYLIST_TABLE + "." + PLAYLIST_ID + " = " + JOIN_PLAYLIST_ID
-
-            + " LEFT JOIN " + STREAM_TABLE
-            + " ON " + STREAM_TABLE + "." + STREAM_ID + " = " + JOIN_STREAM_ID
-            + " AND :streamUrl = :streamUrl"
-
-            + " GROUP BY " + JOIN_PLAYLIST_ID
-            + " ORDER BY " + PLAYLIST_DISPLAY_INDEX + ", " + PLAYLIST_NAME)
-    Flowable<List<PlaylistDuplicatesEntry>> getPlaylistDuplicatesMetadata(String streamUrl);
-}

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistStreamDAO.kt

@@ -0,0 +1,126 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import androidx.room.RewriteQueriesToDropUnusedColumns
+import androidx.room.Transaction
+import io.reactivex.rxjava3.core.Flowable
+import org.schabi.newpipe.database.BasicDAO
+import org.schabi.newpipe.database.playlist.PlaylistDuplicatesEntry
+import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry
+import org.schabi.newpipe.database.playlist.PlaylistStreamEntry
+import org.schabi.newpipe.database.playlist.model.PlaylistEntity.Companion.DEFAULT_THUMBNAIL_ID
+import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity
+
+@Dao
+interface PlaylistStreamDAO : BasicDAO<PlaylistStreamEntity> {
+
+    @Query("SELECT * FROM playlist_stream_join")
+    override fun getAll(): Flowable<List<PlaylistStreamEntity>>
+
+    @Query("DELETE FROM playlist_stream_join")
+    override fun deleteAll(): Int
+
+    override fun listByService(serviceId: Int): Flowable<List<PlaylistStreamEntity>> {
+        throw UnsupportedOperationException()
+    }
+
+    @Query("DELETE FROM playlist_stream_join WHERE playlist_id = :playlistId")
+    fun deleteBatch(playlistId: Long)
+
+    @Query("SELECT COALESCE(MAX(join_index), -1) FROM playlist_stream_join WHERE playlist_id = :playlistId")
+    fun getMaximumIndexOf(playlistId: Long): Flowable<Int>
+
+    @Query(
+        """
+        SELECT CASE WHEN COUNT(*) != 0 then stream_id ELSE $DEFAULT_THUMBNAIL_ID END
+        FROM streams
+
+        LEFT JOIN playlist_stream_join
+        ON uid = stream_id
+
+        WHERE playlist_id = :playlistId LIMIT 1
+        """
+    )
+    fun getAutomaticThumbnailStreamId(playlistId: Long): Flowable<Long>
+
+    // get ids of streams of the given playlist then merge with the stream metadata
+    @RewriteQueriesToDropUnusedColumns
+    @Transaction
+    @Query(
+        """
+        SELECT * FROM streams
+
+        INNER JOIN (SELECT stream_id, join_index FROM playlist_stream_join WHERE playlist_id = :playlistId)
+        ON uid = stream_id
+
+        LEFT JOIN (SELECT stream_id AS stream_id_alias, progress_time FROM stream_state )
+        ON uid = stream_id_alias
+
+        ORDER BY join_index ASC
+        """
+    )
+    fun getOrderedStreamsOf(playlistId: Long): Flowable<MutableList<PlaylistStreamEntry>>
+
+    @Transaction
+    @Query(
+        """
+        SELECT uid, name, is_thumbnail_permanent, thumbnail_stream_id, display_index,
+        (SELECT thumbnail_url FROM streams WHERE streams.uid = thumbnail_stream_id) AS thumbnail_url,
+
+        COALESCE(COUNT(playlist_id), 0) AS streamCount FROM playlists
+
+        LEFT JOIN playlist_stream_join
+        ON playlists.uid = playlist_id
+
+        GROUP BY uid
+        ORDER BY display_index
+        """
+    )
+    fun getPlaylistMetadata(): Flowable<MutableList<PlaylistMetadataEntry>>
+
+    @RewriteQueriesToDropUnusedColumns
+    @Transaction
+    @Query(
+        """
+        SELECT *, MIN(join_index) FROM streams
+
+        INNER JOIN (SELECT stream_id, join_index FROM playlist_stream_join WHERE playlist_id = :playlistId)
+        ON uid = stream_id
+
+        LEFT JOIN (SELECT stream_id AS stream_id_alias, progress_time FROM stream_state )
+        ON uid = stream_id_alias
+
+        GROUP BY uid
+        ORDER BY MIN(join_index) ASC
+        """
+    )
+    fun getStreamsWithoutDuplicates(playlistId: Long): Flowable<MutableList<PlaylistStreamEntry>>
+
+    @Transaction
+    @Query(
+        """
+        SELECT playlists.uid, name, is_thumbnail_permanent, thumbnail_stream_id, display_index,
+        (SELECT thumbnail_url FROM streams WHERE streams.uid = thumbnail_stream_id) AS thumbnail_url,
+
+        COALESCE(COUNT(playlist_id), 0) AS streamCount,
+        COALESCE(SUM(url = :streamUrl), 0) AS timesStreamIsContained FROM playlists
+
+        LEFT JOIN playlist_stream_join
+        ON playlists.uid = playlist_id
+
+        LEFT JOIN streams
+        ON streams.uid = stream_id AND :streamUrl = :streamUrl
+
+        GROUP BY playlist_id
+        ORDER BY display_index, name
+        """
+    )
+    fun getPlaylistDuplicatesMetadata(streamUrl: String): Flowable<MutableList<PlaylistDuplicatesEntry>>
+}

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistEntity.java

@@ -1,100 +0,0 @@
-package org.schabi.newpipe.database.playlist.model;
-
-import androidx.room.ColumnInfo;
-import androidx.room.Entity;
-import androidx.room.Ignore;
-import androidx.room.PrimaryKey;
-
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_TABLE;
-
-import org.schabi.newpipe.R;
-import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
-
-@Entity(tableName = PLAYLIST_TABLE)
-public class PlaylistEntity {
-
-    public static final String DEFAULT_THUMBNAIL = "drawable://"
-            + R.drawable.placeholder_thumbnail_playlist;
-    public static final long DEFAULT_THUMBNAIL_ID = -1;
-
-    public static final String PLAYLIST_TABLE = "playlists";
-    public static final String PLAYLIST_ID = "uid";
-    public static final String PLAYLIST_NAME = "name";
-    public static final String PLAYLIST_THUMBNAIL_URL = "thumbnail_url";
-    public static final String PLAYLIST_DISPLAY_INDEX = "display_index";
-    public static final String PLAYLIST_THUMBNAIL_PERMANENT = "is_thumbnail_permanent";
-    public static final String PLAYLIST_THUMBNAIL_STREAM_ID = "thumbnail_stream_id";
-
-    @PrimaryKey(autoGenerate = true)
-    @ColumnInfo(name = PLAYLIST_ID)
-    private long uid = 0;
-
-    @ColumnInfo(name = PLAYLIST_NAME)
-    private String name;
-
-    @ColumnInfo(name = PLAYLIST_THUMBNAIL_PERMANENT)
-    private boolean isThumbnailPermanent;
-
-    @ColumnInfo(name = PLAYLIST_THUMBNAIL_STREAM_ID)
-    private long thumbnailStreamId;
-
-    @ColumnInfo(name = PLAYLIST_DISPLAY_INDEX)
-    private long displayIndex;
-
-    public PlaylistEntity(final String name, final boolean isThumbnailPermanent,
-                          final long thumbnailStreamId, final long displayIndex) {
-        this.name = name;
-        this.isThumbnailPermanent = isThumbnailPermanent;
-        this.thumbnailStreamId = thumbnailStreamId;
-        this.displayIndex = displayIndex;
-    }
-
-    @Ignore
-    public PlaylistEntity(final PlaylistMetadataEntry item) {
-        this.uid = item.getUid();
-        this.name = item.name;
-        this.isThumbnailPermanent = item.isThumbnailPermanent();
-        this.thumbnailStreamId = item.getThumbnailStreamId();
-        this.displayIndex = item.getDisplayIndex();
-    }
-
-    public long getUid() {
-        return uid;
-    }
-
-    public void setUid(final long uid) {
-        this.uid = uid;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(final String name) {
-        this.name = name;
-    }
-
-    public long getThumbnailStreamId() {
-        return thumbnailStreamId;
-    }
-
-    public void setThumbnailStreamId(final long thumbnailStreamId) {
-        this.thumbnailStreamId = thumbnailStreamId;
-    }
-
-    public boolean getIsThumbnailPermanent() {
-        return isThumbnailPermanent;
-    }
-
-    public void setIsThumbnailPermanent(final boolean isThumbnailSet) {
-        this.isThumbnailPermanent = isThumbnailSet;
-    }
-
-    public long getDisplayIndex() {
-        return displayIndex;
-    }
-
-    public void setDisplayIndex(final long displayIndex) {
-        this.displayIndex = displayIndex;
-    }
-}

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistEntity.kt

@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist.model
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.Ignore
+import androidx.room.PrimaryKey
+import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry
+
+@Entity(tableName = PlaylistEntity.Companion.PLAYLIST_TABLE)
+data class PlaylistEntity @JvmOverloads constructor(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = PLAYLIST_ID)
+    var uid: Long = 0,
+
+    @ColumnInfo(name = PLAYLIST_NAME)
+    var name: String?,
+
+    @ColumnInfo(name = PLAYLIST_THUMBNAIL_PERMANENT)
+    var isThumbnailPermanent: Boolean,
+
+    @ColumnInfo(name = PLAYLIST_THUMBNAIL_STREAM_ID)
+    var thumbnailStreamId: Long,
+
+    @ColumnInfo(name = PLAYLIST_DISPLAY_INDEX)
+    var displayIndex: Long
+) {
+
+    @Ignore
+    constructor(item: PlaylistMetadataEntry) : this(
+        uid = item.uid,
+        name = item.orderingName,
+        isThumbnailPermanent = item.isThumbnailPermanent!!,
+        thumbnailStreamId = item.thumbnailStreamId!!,
+        displayIndex = item.displayIndex!!,
+    )
+
+    companion object {
+        const val DEFAULT_THUMBNAIL_ID = -1L
+
+        const val PLAYLIST_TABLE = "playlists"
+        const val PLAYLIST_ID = "uid"
+        const val PLAYLIST_NAME = "name"
+        const val PLAYLIST_THUMBNAIL_URL = "thumbnail_url"
+        const val PLAYLIST_DISPLAY_INDEX = "display_index"
+        const val PLAYLIST_THUMBNAIL_PERMANENT = "is_thumbnail_permanent"
+        const val PLAYLIST_THUMBNAIL_STREAM_ID = "thumbnail_stream_id"
+    }
+}

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistRemoteEntity.java

@@ -1,191 +0,0 @@
-package org.schabi.newpipe.database.playlist.model;
-
-import android.text.TextUtils;
-
-import androidx.annotation.Nullable;
-import androidx.room.ColumnInfo;
-import androidx.room.Entity;
-import androidx.room.Ignore;
-import androidx.room.Index;
-import androidx.room.PrimaryKey;
-
-import org.schabi.newpipe.database.playlist.PlaylistLocalItem;
-import org.schabi.newpipe.extractor.playlist.PlaylistInfo;
-import org.schabi.newpipe.util.Constants;
-import org.schabi.newpipe.util.image.ImageStrategy;
-
-import static org.schabi.newpipe.database.LocalItem.LocalItemType.PLAYLIST_REMOTE_ITEM;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_NAME;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_SERVICE_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_TABLE;
-import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_URL;
-
-@Entity(tableName = REMOTE_PLAYLIST_TABLE,
-        indices = {
-                @Index(value = {REMOTE_PLAYLIST_SERVICE_ID, REMOTE_PLAYLIST_URL}, unique = true)
-        })
-public class PlaylistRemoteEntity implements PlaylistLocalItem {
-    public static final String REMOTE_PLAYLIST_TABLE = "remote_playlists";
-    public static final String REMOTE_PLAYLIST_ID = "uid";
-    public static final String REMOTE_PLAYLIST_SERVICE_ID = "service_id";
-    public static final String REMOTE_PLAYLIST_NAME = "name";
-    public static final String REMOTE_PLAYLIST_URL = "url";
-    public static final String REMOTE_PLAYLIST_THUMBNAIL_URL = "thumbnail_url";
-    public static final String REMOTE_PLAYLIST_UPLOADER_NAME = "uploader";
-    public static final String REMOTE_PLAYLIST_DISPLAY_INDEX = "display_index";
-    public static final String REMOTE_PLAYLIST_STREAM_COUNT = "stream_count";
-
-    @PrimaryKey(autoGenerate = true)
-    @ColumnInfo(name = REMOTE_PLAYLIST_ID)
-    private long uid = 0;
-
-    @ColumnInfo(name = REMOTE_PLAYLIST_SERVICE_ID)
-    private int serviceId = Constants.NO_SERVICE_ID;
-
-    @ColumnInfo(name = REMOTE_PLAYLIST_NAME)
-    private String name;
-
-    @ColumnInfo(name = REMOTE_PLAYLIST_URL)
-    private String url;
-
-    @ColumnInfo(name = REMOTE_PLAYLIST_THUMBNAIL_URL)
-    private String thumbnailUrl;
-
-    @ColumnInfo(name = REMOTE_PLAYLIST_UPLOADER_NAME)
-    private String uploader;
-
-    @ColumnInfo(name = REMOTE_PLAYLIST_DISPLAY_INDEX)
-    private long displayIndex = -1; // Make sure the new item is on the top
-
-    @ColumnInfo(name = REMOTE_PLAYLIST_STREAM_COUNT)
-    private Long streamCount;
-
-    public PlaylistRemoteEntity(final int serviceId, final String name, final String url,
-                                final String thumbnailUrl, final String uploader,
-                                final Long streamCount) {
-        this.serviceId = serviceId;
-        this.name = name;
-        this.url = url;
-        this.thumbnailUrl = thumbnailUrl;
-        this.uploader = uploader;
-        this.streamCount = streamCount;
-    }
-
-    @Ignore
-    public PlaylistRemoteEntity(final int serviceId, final String name, final String url,
-                                final String thumbnailUrl, final String uploader,
-                                final long displayIndex, final Long streamCount) {
-        this.serviceId = serviceId;
-        this.name = name;
-        this.url = url;
-        this.thumbnailUrl = thumbnailUrl;
-        this.uploader = uploader;
-        this.displayIndex = displayIndex;
-        this.streamCount = streamCount;
-    }
-
-    @Ignore
-    public PlaylistRemoteEntity(final PlaylistInfo info) {
-        this(info.getServiceId(), info.getName(), info.getUrl(),
-                // use uploader avatar when no thumbnail is available
-                ImageStrategy.imageListToDbUrl(info.getThumbnails().isEmpty()
-                        ? info.getUploaderAvatars() : info.getThumbnails()),
-                info.getUploaderName(), info.getStreamCount());
-    }
-
-    @Ignore
-    public boolean isIdenticalTo(final PlaylistInfo info) {
-        /*
-         * Returns boolean comparing the online playlist and the local copy.
-         * (False if info changed such as playlist name or track count)
-         */
-        return getServiceId() == info.getServiceId()
-                && getStreamCount() == info.getStreamCount()
-                && TextUtils.equals(getName(), info.getName())
-                && TextUtils.equals(getUrl(), info.getUrl())
-                // we want to update the local playlist data even when either the remote thumbnail
-                // URL changes, or the preferred image quality setting is changed by the user
-                && TextUtils.equals(getThumbnailUrl(),
-                ImageStrategy.imageListToDbUrl(info.getThumbnails()))
-                && TextUtils.equals(getUploader(), info.getUploaderName());
-    }
-
-    @Override
-    public long getUid() {
-        return uid;
-    }
-
-    public void setUid(final long uid) {
-        this.uid = uid;
-    }
-
-    public int getServiceId() {
-        return serviceId;
-    }
-
-    public void setServiceId(final int serviceId) {
-        this.serviceId = serviceId;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(final String name) {
-        this.name = name;
-    }
-
-    @Nullable
-    @Override
-    public String getThumbnailUrl() {
-        return thumbnailUrl;
-    }
-
-    public void setThumbnailUrl(final String thumbnailUrl) {
-        this.thumbnailUrl = thumbnailUrl;
-    }
-
-    public String getUrl() {
-        return url;
-    }
-
-    public void setUrl(final String url) {
-        this.url = url;
-    }
-
-    public String getUploader() {
-        return uploader;
-    }
-
-    public void setUploader(final String uploader) {
-        this.uploader = uploader;
-    }
-
-    @Override
-    public long getDisplayIndex() {
-        return displayIndex;
-    }
-
-    @Override
-    public void setDisplayIndex(final long displayIndex) {
-        this.displayIndex = displayIndex;
-    }
-
-    public Long getStreamCount() {
-        return streamCount;
-    }
-
-    public void setStreamCount(final Long streamCount) {
-        this.streamCount = streamCount;
-    }
-
-    @Override
-    public LocalItemType getLocalItemType() {
-        return PLAYLIST_REMOTE_ITEM;
-    }
-
-    @Override
-    public String getOrderingName() {
-        return name;
-    }
-}

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistRemoteEntity.kt

@@ -0,0 +1,104 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2025 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist.model
+
+import android.text.TextUtils
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.Ignore
+import androidx.room.Index
+import androidx.room.PrimaryKey
+import org.schabi.newpipe.database.LocalItem.LocalItemType
+import org.schabi.newpipe.database.playlist.PlaylistLocalItem
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.Companion.REMOTE_PLAYLIST_SERVICE_ID
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.Companion.REMOTE_PLAYLIST_TABLE
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.Companion.REMOTE_PLAYLIST_URL
+import org.schabi.newpipe.extractor.playlist.PlaylistInfo
+import org.schabi.newpipe.util.NO_SERVICE_ID
+import org.schabi.newpipe.util.image.ImageStrategy
+
+@Entity(
+    tableName = REMOTE_PLAYLIST_TABLE,
+    indices = [
+        Index(
+            value = [REMOTE_PLAYLIST_SERVICE_ID, REMOTE_PLAYLIST_URL],
+            unique = true
+        )
+    ]
+)
+data class PlaylistRemoteEntity(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = REMOTE_PLAYLIST_ID)
+    override var uid: Long = 0,
+
+    @ColumnInfo(name = REMOTE_PLAYLIST_SERVICE_ID)
+    val serviceId: Int = NO_SERVICE_ID,
+
+    @ColumnInfo(name = REMOTE_PLAYLIST_NAME)
+    override val orderingName: String?,
+
+    @ColumnInfo(name = REMOTE_PLAYLIST_URL)
+    val url: String?,
+
+    @ColumnInfo(name = REMOTE_PLAYLIST_THUMBNAIL_URL)
+    override val thumbnailUrl: String?,
+
+    @ColumnInfo(name = REMOTE_PLAYLIST_UPLOADER_NAME)
+    val uploader: String?,
+
+    @ColumnInfo(name = REMOTE_PLAYLIST_DISPLAY_INDEX)
+    override var displayIndex: Long = -1, // Make sure the new item is on the top
+
+    @ColumnInfo(name = REMOTE_PLAYLIST_STREAM_COUNT)
+    val streamCount: Long?
+) : PlaylistLocalItem {
+
+    constructor(playlistInfo: PlaylistInfo) : this(
+        serviceId = playlistInfo.serviceId,
+        orderingName = playlistInfo.name,
+        url = playlistInfo.url,
+        thumbnailUrl = ImageStrategy.imageListToDbUrl(
+            if (playlistInfo.thumbnails.isEmpty()) {
+                playlistInfo.uploaderAvatars
+            } else {
+                playlistInfo.thumbnails
+            }
+        ),
+        uploader = playlistInfo.uploaderName,
+        streamCount = playlistInfo.streamCount
+    )
+
+    override val localItemType: LocalItemType
+        get() = LocalItemType.PLAYLIST_REMOTE_ITEM
+
+    /**
+     * Returns boolean comparing the online playlist and the local copy.
+     * (False if info changed such as playlist name or track count)
+     */
+    @Ignore
+    fun isIdenticalTo(info: PlaylistInfo): Boolean {
+        return this.serviceId == info.serviceId && this.streamCount == info.streamCount &&
+            TextUtils.equals(this.orderingName, info.name) &&
+            TextUtils.equals(this.url, info.url) &&
+            // we want to update the local playlist data even when either the remote thumbnail
+            // URL changes, or the preferred image quality setting is changed by the user
+            TextUtils.equals(thumbnailUrl, ImageStrategy.imageListToDbUrl(info.thumbnails)) &&
+            TextUtils.equals(this.uploader, info.uploaderName)
+    }
+
+    companion object {
+        const val REMOTE_PLAYLIST_TABLE = "remote_playlists"
+        const val REMOTE_PLAYLIST_ID = "uid"
+        const val REMOTE_PLAYLIST_SERVICE_ID = "service_id"
+        const val REMOTE_PLAYLIST_NAME = "name"
+        const val REMOTE_PLAYLIST_URL = "url"
+        const val REMOTE_PLAYLIST_THUMBNAIL_URL = "thumbnail_url"
+        const val REMOTE_PLAYLIST_UPLOADER_NAME = "uploader"
+        const val REMOTE_PLAYLIST_DISPLAY_INDEX = "display_index"
+        const val REMOTE_PLAYLIST_STREAM_COUNT = "stream_count"
+    }
+}

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistStreamEntity.java

@@ -1,76 +0,0 @@
-package org.schabi.newpipe.database.playlist.model;
-
-import androidx.room.ColumnInfo;
-import androidx.room.Entity;
-import androidx.room.ForeignKey;
-import androidx.room.Index;
-
-import org.schabi.newpipe.database.stream.model.StreamEntity;
-
-import static androidx.room.ForeignKey.CASCADE;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.JOIN_INDEX;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.JOIN_PLAYLIST_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.JOIN_STREAM_ID;
-import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.PLAYLIST_STREAM_JOIN_TABLE;
-
-@Entity(tableName = PLAYLIST_STREAM_JOIN_TABLE,
-        primaryKeys = {JOIN_PLAYLIST_ID, JOIN_INDEX},
-        indices = {
-                @Index(value = {JOIN_PLAYLIST_ID, JOIN_INDEX}, unique = true),
-                @Index(value = {JOIN_STREAM_ID})
-        },
-        foreignKeys = {
-                @ForeignKey(entity = PlaylistEntity.class,
-                        parentColumns = PlaylistEntity.PLAYLIST_ID,
-                        childColumns = JOIN_PLAYLIST_ID,
-                        onDelete = CASCADE, onUpdate = CASCADE, deferred = true),
-                @ForeignKey(entity = StreamEntity.class,
-                        parentColumns = StreamEntity.STREAM_ID,
-                        childColumns = JOIN_STREAM_ID,
-                        onDelete = CASCADE, onUpdate = CASCADE, deferred = true)
-        })
-public class PlaylistStreamEntity {
-    public static final String PLAYLIST_STREAM_JOIN_TABLE = "playlist_stream_join";
-    public static final String JOIN_PLAYLIST_ID = "playlist_id";
-    public static final String JOIN_STREAM_ID = "stream_id";
-    public static final String JOIN_INDEX = "join_index";
-
-    @ColumnInfo(name = JOIN_PLAYLIST_ID)
-    private long playlistUid;
-
-    @ColumnInfo(name = JOIN_STREAM_ID)
-    private long streamUid;
-
-    @ColumnInfo(name = JOIN_INDEX)
-    private int index;
-
-    public PlaylistStreamEntity(final long playlistUid, final long streamUid, final int index) {
-        this.playlistUid = playlistUid;
-        this.streamUid = streamUid;
-        this.index = index;
-    }
-
-    public long getPlaylistUid() {
-        return playlistUid;
-    }
-
-    public void setPlaylistUid(final long playlistUid) {
-        this.playlistUid = playlistUid;
-    }
-
-    public long getStreamUid() {
-        return streamUid;
-    }
-
-    public void setStreamUid(final long streamUid) {
-        this.streamUid = streamUid;
-    }
-
-    public int getIndex() {
-        return index;
-    }
-
-    public void setIndex(final int index) {
-        this.index = index;
-    }
-}

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistStreamEntity.kt

@@ -0,0 +1,68 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2020 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist.model
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.ForeignKey.Companion.CASCADE
+import androidx.room.Index
+import org.schabi.newpipe.database.LocalItem
+import org.schabi.newpipe.database.playlist.model.PlaylistEntity.Companion.PLAYLIST_ID
+import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.Companion.JOIN_INDEX
+import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.Companion.JOIN_PLAYLIST_ID
+import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.Companion.JOIN_STREAM_ID
+import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.Companion.PLAYLIST_STREAM_JOIN_TABLE
+import org.schabi.newpipe.database.stream.model.StreamEntity
+
+@Entity(
+    tableName = PLAYLIST_STREAM_JOIN_TABLE,
+    primaryKeys = [JOIN_PLAYLIST_ID, JOIN_INDEX],
+    indices = [
+        Index(value = [JOIN_PLAYLIST_ID, JOIN_INDEX], unique = true),
+        Index(value = [JOIN_STREAM_ID])
+    ],
+    foreignKeys = [
+        ForeignKey(
+            entity = PlaylistEntity::class,
+            parentColumns = arrayOf(PLAYLIST_ID),
+            childColumns = arrayOf(JOIN_PLAYLIST_ID),
+            onDelete = CASCADE,
+            onUpdate = CASCADE,
+            deferred = true
+        ),
+        ForeignKey(
+            entity = StreamEntity::class,
+            parentColumns = arrayOf(StreamEntity.STREAM_ID),
+            childColumns = arrayOf(JOIN_STREAM_ID),
+            onDelete = CASCADE,
+            onUpdate = CASCADE,
+            deferred = true
+        )
+    ]
+)
+data class PlaylistStreamEntity(
+    @ColumnInfo(name = JOIN_PLAYLIST_ID)
+    val playlistUid: Long,
+
+    @ColumnInfo(name = JOIN_STREAM_ID)
+    val streamUid: Long,
+
+    @ColumnInfo(name = JOIN_INDEX)
+    val index: Int
+) : LocalItem {
+
+    override val localItemType: LocalItem.LocalItemType
+        get() = LocalItem.LocalItemType.PLAYLIST_STREAM_ITEM
+
+    companion object {
+        const val PLAYLIST_STREAM_JOIN_TABLE = "playlist_stream_join"
+        const val JOIN_PLAYLIST_ID = "playlist_id"
+        const val JOIN_STREAM_ID = "stream_id"
+        const val JOIN_INDEX = "join_index"
+    }
+}

app/src/main/java/org/schabi/newpipe/database/stream/StreamStatisticsEntry.kt

@@ -1,16 +1,23 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2023 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
 package org.schabi.newpipe.database.stream
 
 import androidx.room.ColumnInfo
 import androidx.room.Embedded
+import androidx.room.Ignore
 import org.schabi.newpipe.database.LocalItem
 import org.schabi.newpipe.database.history.model.StreamHistoryEntity
 import org.schabi.newpipe.database.stream.model.StreamEntity
-import org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_PROGRESS_MILLIS
+import org.schabi.newpipe.database.stream.model.StreamStateEntity.Companion.STREAM_PROGRESS_MILLIS
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
 import org.schabi.newpipe.util.image.ImageStrategy
 import java.time.OffsetDateTime
 
-class StreamStatisticsEntry(
+data class StreamStatisticsEntry(
     @Embedded
     val streamEntity: StreamEntity,
 
@@ -26,18 +33,23 @@ class StreamStatisticsEntry(
     @ColumnInfo(name = STREAM_WATCH_COUNT)
     val watchCount: Long
 ) : LocalItem {
+
+    override val localItemType: LocalItem.LocalItemType
+        get() = LocalItem.LocalItemType.STATISTIC_STREAM_ITEM
+
+    @Ignore
     fun toStreamInfoItem(): StreamInfoItem {
-        val item = StreamInfoItem(streamEntity.serviceId, streamEntity.url, streamEntity.title, streamEntity.streamType)
-        item.duration = streamEntity.duration
-        item.uploaderName = streamEntity.uploader
-        item.uploaderUrl = streamEntity.uploaderUrl
-        item.thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
-
-        return item
-    }
-
-    override fun getLocalItemType(): LocalItem.LocalItemType {
-        return LocalItem.LocalItemType.STATISTIC_STREAM_ITEM
+        return StreamInfoItem(
+            streamEntity.serviceId,
+            streamEntity.url,
+            streamEntity.title,
+            streamEntity.streamType
+        ).apply {
+            duration = streamEntity.duration
+            uploaderName = streamEntity.uploader
+            uploaderUrl = streamEntity.uploaderUrl
+            thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
+        }
     }
 
     companion object {

app/src/main/java/org/schabi/newpipe/database/stream/dao/StreamStateDAO.java

@@ -1,48 +0,0 @@
-package org.schabi.newpipe.database.stream.dao;
-
-import androidx.room.Dao;
-import androidx.room.Insert;
-import androidx.room.OnConflictStrategy;
-import androidx.room.Query;
-import androidx.room.Transaction;
-
-import org.schabi.newpipe.database.BasicDAO;
-import org.schabi.newpipe.database.stream.model.StreamStateEntity;
-
-import java.util.List;
-
-import io.reactivex.rxjava3.core.Flowable;
-
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.JOIN_STREAM_ID;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_STATE_TABLE;
-
-@Dao
-public interface StreamStateDAO extends BasicDAO<StreamStateEntity> {
-    @Override
-    @Query("SELECT * FROM " + STREAM_STATE_TABLE)
-    Flowable<List<StreamStateEntity>> getAll();
-
-    @Override
-    @Query("DELETE FROM " + STREAM_STATE_TABLE)
-    int deleteAll();
-
-    @Override
-    default Flowable<List<StreamStateEntity>> listByService(final int serviceId) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Query("SELECT * FROM " + STREAM_STATE_TABLE + " WHERE " + JOIN_STREAM_ID + " = :streamId")
-    Flowable<List<StreamStateEntity>> getState(long streamId);
-
-    @Query("DELETE FROM " + STREAM_STATE_TABLE + " WHERE " + JOIN_STREAM_ID + " = :streamId")
-    int deleteState(long streamId);
-
-    @Insert(onConflict = OnConflictStrategy.IGNORE)
-    void silentInsertInternal(StreamStateEntity streamState);
-
-    @Transaction
-    default long upsert(final StreamStateEntity stream) {
-        silentInsertInternal(stream);
-        return update(stream);
-    }
-}

app/src/main/java/org/schabi/newpipe/database/stream/dao/StreamStateDAO.kt

@@ -0,0 +1,45 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2021 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.stream.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
+import io.reactivex.rxjava3.core.Flowable
+import org.schabi.newpipe.database.BasicDAO
+import org.schabi.newpipe.database.stream.model.StreamStateEntity
+
+@Dao
+interface StreamStateDAO : BasicDAO<StreamStateEntity> {
+
+    @Query("SELECT * FROM " + StreamStateEntity.STREAM_STATE_TABLE)
+    override fun getAll(): Flowable<List<StreamStateEntity>>
+
+    @Query("DELETE FROM " + StreamStateEntity.STREAM_STATE_TABLE)
+    override fun deleteAll(): Int
+
+    override fun listByService(serviceId: Int): Flowable<List<StreamStateEntity>> {
+        throw UnsupportedOperationException()
+    }
+
+    @Query("SELECT * FROM " + StreamStateEntity.STREAM_STATE_TABLE + " WHERE " + StreamStateEntity.JOIN_STREAM_ID + " = :streamId")
+    fun getState(streamId: Long): Flowable<MutableList<StreamStateEntity>>
+
+    @Query("DELETE FROM " + StreamStateEntity.STREAM_STATE_TABLE + " WHERE " + StreamStateEntity.JOIN_STREAM_ID + " = :streamId")
+    fun deleteState(streamId: Long): Int
+
+    @Insert(onConflict = OnConflictStrategy.Companion.IGNORE)
+    fun silentInsertInternal(streamState: StreamStateEntity)
+
+    @Transaction
+    fun upsert(stream: StreamStateEntity): Long {
+        silentInsertInternal(stream)
+        return update(stream).toLong()
+    }
+}

app/src/main/java/org/schabi/newpipe/database/stream/model/StreamStateEntity.java

@@ -1,112 +0,0 @@
-package org.schabi.newpipe.database.stream.model;
-
-import androidx.annotation.Nullable;
-import androidx.room.ColumnInfo;
-import androidx.room.Entity;
-import androidx.room.ForeignKey;
-
-import java.util.Objects;
-
-import static androidx.room.ForeignKey.CASCADE;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.JOIN_STREAM_ID;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_STATE_TABLE;
-
-@Entity(tableName = STREAM_STATE_TABLE,
-        primaryKeys = {JOIN_STREAM_ID},
-        foreignKeys = {
-                @ForeignKey(entity = StreamEntity.class,
-                        parentColumns = StreamEntity.STREAM_ID,
-                        childColumns = JOIN_STREAM_ID,
-                        onDelete = CASCADE, onUpdate = CASCADE)
-        })
-public class StreamStateEntity {
-    public static final String STREAM_STATE_TABLE = "stream_state";
-    public static final String JOIN_STREAM_ID = "stream_id";
-    // This additional field is required for the SQL query because 'stream_id' is used
-    // for some other joins already
-    public static final String JOIN_STREAM_ID_ALIAS = "stream_id_alias";
-    public static final String STREAM_PROGRESS_MILLIS = "progress_time";
-
-    /**
-     * Playback state will not be saved, if playback time is less than this threshold (5000ms = 5s).
-     */
-    public static final long PLAYBACK_SAVE_THRESHOLD_START_MILLISECONDS = 5000;
-
-    /**
-     * Stream will be considered finished if the playback time left exceeds this threshold
-     * (60000ms = 60s).
-     * @see #isFinished(long)
-     * @see org.schabi.newpipe.database.feed.dao.FeedDAO#getLiveOrNotPlayedStreams()
-     * @see org.schabi.newpipe.database.feed.dao.FeedDAO#getLiveOrNotPlayedStreamsForGroup(long)
-     */
-    public static final long PLAYBACK_FINISHED_END_MILLISECONDS = 60000;
-
-    @ColumnInfo(name = JOIN_STREAM_ID)
-    private long streamUid;
-
-    @ColumnInfo(name = STREAM_PROGRESS_MILLIS)
-    private long progressMillis;
-
-    public StreamStateEntity(final long streamUid, final long progressMillis) {
-        this.streamUid = streamUid;
-        this.progressMillis = progressMillis;
-    }
-
-    public long getStreamUid() {
-        return streamUid;
-    }
-
-    public void setStreamUid(final long streamUid) {
-        this.streamUid = streamUid;
-    }
-
-    public long getProgressMillis() {
-        return progressMillis;
-    }
-
-    public void setProgressMillis(final long progressMillis) {
-        this.progressMillis = progressMillis;
-    }
-
-    /**
-     * The state will be considered valid, and thus be saved, if the progress is more than {@link
-     * #PLAYBACK_SAVE_THRESHOLD_START_MILLISECONDS} or at least 1/4 of the video length.
-     * @param durationInSeconds the duration of the stream connected with this state, in seconds
-     * @return whether this stream state entity should be saved or not
-     */
-    public boolean isValid(final long durationInSeconds) {
-        return progressMillis > PLAYBACK_SAVE_THRESHOLD_START_MILLISECONDS
-                || progressMillis > durationInSeconds * 1000 / 4;
-    }
-
-    /**
-     * The video will be considered as finished, if the time left is less than {@link
-     * #PLAYBACK_FINISHED_END_MILLISECONDS} and the progress is at least 3/4 of the video length.
-     * The state will be saved anyway, so that it can be shown under stream info items, but the
-     * player will not resume if a state is considered as finished. Finished streams are also the
-     * ones that can be filtered out in the feed fragment.
-     * @see org.schabi.newpipe.database.feed.dao.FeedDAO#getLiveOrNotPlayedStreams()
-     * @see org.schabi.newpipe.database.feed.dao.FeedDAO#getLiveOrNotPlayedStreamsForGroup(long)
-     * @param durationInSeconds the duration of the stream connected with this state, in seconds
-     * @return whether the stream is finished or not
-     */
-    public boolean isFinished(final long durationInSeconds) {
-        return progressMillis >= durationInSeconds * 1000 - PLAYBACK_FINISHED_END_MILLISECONDS
-                && progressMillis >= durationInSeconds * 1000 * 3 / 4;
-    }
-
-    @Override
-    public boolean equals(@Nullable final Object obj) {
-        if (obj instanceof StreamStateEntity) {
-            return ((StreamStateEntity) obj).streamUid == streamUid
-                    && ((StreamStateEntity) obj).progressMillis == progressMillis;
-        } else {
-            return false;
-        }
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(streamUid, progressMillis);
-    }
-}

app/src/main/java/org/schabi/newpipe/database/stream/model/StreamStateEntity.kt

@@ -0,0 +1,85 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2023 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.stream.model
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.ForeignKey.Companion.CASCADE
+import org.schabi.newpipe.database.stream.model.StreamEntity.Companion.STREAM_ID
+import org.schabi.newpipe.database.stream.model.StreamStateEntity.Companion.JOIN_STREAM_ID
+import org.schabi.newpipe.database.stream.model.StreamStateEntity.Companion.PLAYBACK_FINISHED_END_MILLISECONDS
+import org.schabi.newpipe.database.stream.model.StreamStateEntity.Companion.STREAM_STATE_TABLE
+
+@Entity(
+    tableName = STREAM_STATE_TABLE,
+    primaryKeys = [JOIN_STREAM_ID],
+    foreignKeys = [
+        ForeignKey(
+            entity = StreamEntity::class,
+            parentColumns = arrayOf(STREAM_ID),
+            childColumns = arrayOf(JOIN_STREAM_ID),
+            onDelete = CASCADE,
+            onUpdate = CASCADE
+        )
+    ]
+)
+data class StreamStateEntity(
+    @ColumnInfo(name = JOIN_STREAM_ID)
+    val streamUid: Long,
+
+    @ColumnInfo(name = STREAM_PROGRESS_MILLIS)
+    val progressMillis: Long
+) {
+    /**
+     * The state will be considered valid, and thus be saved, if the progress is more than
+     * [PLAYBACK_SAVE_THRESHOLD_START_MILLISECONDS] or at least 1/4 of the video length.
+     * @param durationInSeconds the duration of the stream connected with this state, in seconds
+     * @return whether this stream state entity should be saved or not
+     */
+    fun isValid(durationInSeconds: Long): Boolean {
+        return progressMillis > PLAYBACK_SAVE_THRESHOLD_START_MILLISECONDS ||
+            progressMillis > durationInSeconds * 1000 / 4
+    }
+
+    /**
+     * The video will be considered as finished, if the time left is less than
+     * [PLAYBACK_FINISHED_END_MILLISECONDS] and the progress is at least 3/4 of the video length.
+     * The state will be saved anyway, so that it can be shown under stream info items, but the
+     * player will not resume if a state is considered as finished. Finished streams are also the
+     * ones that can be filtered out in the feed fragment.
+     * @param durationInSeconds the duration of the stream connected with this state, in seconds
+     * @return whether the stream is finished or not
+     */
+    fun isFinished(durationInSeconds: Long): Boolean {
+        return progressMillis >= durationInSeconds * 1000 - PLAYBACK_FINISHED_END_MILLISECONDS &&
+            progressMillis >= durationInSeconds * 1000 * 3 / 4
+    }
+
+    companion object {
+        const val STREAM_STATE_TABLE = "stream_state"
+        const val JOIN_STREAM_ID = "stream_id"
+
+        // This additional field is required for the SQL query because 'stream_id' is used
+        // for some other joins already
+        const val JOIN_STREAM_ID_ALIAS = "stream_id_alias"
+        const val STREAM_PROGRESS_MILLIS = "progress_time"
+
+        /**
+         * Playback state will not be saved, if playback time is less than this threshold
+         * (5000ms = 5s).
+         */
+        const val PLAYBACK_SAVE_THRESHOLD_START_MILLISECONDS = 5000L
+
+        /**
+         * Stream will be considered finished if the playback time left exceeds this threshold
+         * (60000ms = 60s).
+         * @see org.schabi.newpipe.database.stream.model.StreamStateEntity.isFinished
+         */
+        const val PLAYBACK_FINISHED_END_MILLISECONDS = 60000L
+    }
+}

app/src/main/java/org/schabi/newpipe/database/subscription/NotificationMode.java

@@ -1,14 +0,0 @@
-package org.schabi.newpipe.database.subscription;
-
-import androidx.annotation.IntDef;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-@IntDef({NotificationMode.DISABLED, NotificationMode.ENABLED})
-@Retention(RetentionPolicy.SOURCE)
-public @interface NotificationMode {
-
-    int DISABLED = 0;
-    int ENABLED = 1;
-    //other values reserved for the future
-}

app/src/main/java/org/schabi/newpipe/database/subscription/NotificationMode.kt

@@ -0,0 +1,18 @@
+/*
+ * SPDX-FileCopyrightText: 2021 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.subscription
+
+import androidx.annotation.IntDef
+
+@IntDef(NotificationMode.Companion.DISABLED, NotificationMode.Companion.ENABLED)
+@Retention(AnnotationRetention.SOURCE)
+annotation class NotificationMode {
+    companion object {
+        const val DISABLED = 0
+        const val ENABLED = 1 // other values reserved for the future
+    }
+}

app/src/main/java/org/schabi/newpipe/database/subscription/SubscriptionDAO.kt

@@ -99,7 +99,7 @@ abstract class SubscriptionDAO : BasicDAO<SubscriptionEntity> {
             if (uidFromInsert != -1L) {
                 entity.uid = uidFromInsert
             } else {
-                val subscriptionIdFromDb = getSubscriptionIdInternal(entity.serviceId, entity.url)
+                val subscriptionIdFromDb = getSubscriptionIdInternal(entity.serviceId, entity.url!!)
                     ?: throw IllegalStateException("Subscription cannot be null just after insertion.")
                 entity.uid = subscriptionIdFromDb
 

app/src/main/java/org/schabi/newpipe/database/subscription/SubscriptionEntity.java

@@ -1,200 +0,0 @@
-package org.schabi.newpipe.database.subscription;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.room.ColumnInfo;
-import androidx.room.Entity;
-import androidx.room.Ignore;
-import androidx.room.Index;
-import androidx.room.PrimaryKey;
-
-import org.schabi.newpipe.extractor.channel.ChannelInfo;
-import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
-import org.schabi.newpipe.util.Constants;
-import org.schabi.newpipe.util.image.ImageStrategy;
-
-import static org.schabi.newpipe.database.subscription.SubscriptionEntity.SUBSCRIPTION_SERVICE_ID;
-import static org.schabi.newpipe.database.subscription.SubscriptionEntity.SUBSCRIPTION_TABLE;
-import static org.schabi.newpipe.database.subscription.SubscriptionEntity.SUBSCRIPTION_URL;
-
-@Entity(tableName = SUBSCRIPTION_TABLE,
-        indices = {@Index(value = {SUBSCRIPTION_SERVICE_ID, SUBSCRIPTION_URL}, unique = true)})
-public class SubscriptionEntity {
-    public static final String SUBSCRIPTION_UID = "uid";
-    public static final String SUBSCRIPTION_TABLE = "subscriptions";
-    public static final String SUBSCRIPTION_SERVICE_ID = "service_id";
-    public static final String SUBSCRIPTION_URL = "url";
-    public static final String SUBSCRIPTION_NAME = "name";
-    public static final String SUBSCRIPTION_AVATAR_URL = "avatar_url";
-    public static final String SUBSCRIPTION_SUBSCRIBER_COUNT = "subscriber_count";
-    public static final String SUBSCRIPTION_DESCRIPTION = "description";
-    public static final String SUBSCRIPTION_NOTIFICATION_MODE  = "notification_mode";
-
-    @PrimaryKey(autoGenerate = true)
-    private long uid = 0;
-
-    @ColumnInfo(name = SUBSCRIPTION_SERVICE_ID)
-    private int serviceId = Constants.NO_SERVICE_ID;
-
-    @ColumnInfo(name = SUBSCRIPTION_URL)
-    private String url;
-
-    @ColumnInfo(name = SUBSCRIPTION_NAME)
-    private String name;
-
-    @ColumnInfo(name = SUBSCRIPTION_AVATAR_URL)
-    private String avatarUrl;
-
-    @ColumnInfo(name = SUBSCRIPTION_SUBSCRIBER_COUNT)
-    private Long subscriberCount;
-
-    @ColumnInfo(name = SUBSCRIPTION_DESCRIPTION)
-    private String description;
-
-    @ColumnInfo(name = SUBSCRIPTION_NOTIFICATION_MODE)
-    private int notificationMode;
-
-    @Ignore
-    public static SubscriptionEntity from(@NonNull final ChannelInfo info) {
-        final SubscriptionEntity result = new SubscriptionEntity();
-        result.setServiceId(info.getServiceId());
-        result.setUrl(info.getUrl());
-        result.setData(info.getName(), ImageStrategy.imageListToDbUrl(info.getAvatars()),
-                info.getDescription(), info.getSubscriberCount());
-        return result;
-    }
-
-    public long getUid() {
-        return uid;
-    }
-
-    public void setUid(final long uid) {
-        this.uid = uid;
-    }
-
-    public int getServiceId() {
-        return serviceId;
-    }
-
-    public void setServiceId(final int serviceId) {
-        this.serviceId = serviceId;
-    }
-
-    public String getUrl() {
-        return url;
-    }
-
-    public void setUrl(final String url) {
-        this.url = url;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(final String name) {
-        this.name = name;
-    }
-
-    @Nullable
-    public String getAvatarUrl() {
-        return avatarUrl;
-    }
-
-    public void setAvatarUrl(@Nullable final String avatarUrl) {
-        this.avatarUrl = avatarUrl;
-    }
-
-    public Long getSubscriberCount() {
-        return subscriberCount;
-    }
-
-    public void setSubscriberCount(final Long subscriberCount) {
-        this.subscriberCount = subscriberCount;
-    }
-
-    public String getDescription() {
-        return description;
-    }
-
-    public void setDescription(final String description) {
-        this.description = description;
-    }
-
-    @NotificationMode
-    public int getNotificationMode() {
-        return notificationMode;
-    }
-
-    public void setNotificationMode(@NotificationMode final int notificationMode) {
-        this.notificationMode = notificationMode;
-    }
-
-    @Ignore
-    public void setData(final String n, final String au, final String d, final Long sc) {
-        this.setName(n);
-        this.setAvatarUrl(au);
-        this.setDescription(d);
-        this.setSubscriberCount(sc);
-    }
-
-    @Ignore
-    public ChannelInfoItem toChannelInfoItem() {
-        final ChannelInfoItem item = new ChannelInfoItem(getServiceId(), getUrl(), getName());
-        item.setThumbnails(ImageStrategy.dbUrlToImageList(getAvatarUrl()));
-        item.setSubscriberCount(getSubscriberCount());
-        item.setDescription(getDescription());
-        return item;
-    }
-
-
-    // TODO: Remove these generated methods by migrating this class to a data class from Kotlin.
-    @Override
-    @SuppressWarnings("EqualsReplaceableByObjectsCall")
-    public boolean equals(final Object o) {
-        if (this == o) {
-            return true;
-        }
-        if (o == null || getClass() != o.getClass()) {
-            return false;
-        }
-
-        final SubscriptionEntity that = (SubscriptionEntity) o;
-
-        if (uid != that.uid) {
-            return false;
-        }
-        if (serviceId != that.serviceId) {
-            return false;
-        }
-        if (!url.equals(that.url)) {
-            return false;
-        }
-        if (name != null ? !name.equals(that.name) : that.name != null) {
-            return false;
-        }
-        if (avatarUrl != null ? !avatarUrl.equals(that.avatarUrl) : that.avatarUrl != null) {
-            return false;
-        }
-        if (subscriberCount != null
-                ? !subscriberCount.equals(that.subscriberCount)
-                : that.subscriberCount != null) {
-            return false;
-        }
-        return description != null
-                ? description.equals(that.description)
-                : that.description == null;
-    }
-
-    @Override
-    public int hashCode() {
-        int result = (int) (uid ^ (uid >>> 32));
-        result = 31 * result + serviceId;
-        result = 31 * result + url.hashCode();
-        result = 31 * result + (name != null ? name.hashCode() : 0);
-        result = 31 * result + (avatarUrl != null ? avatarUrl.hashCode() : 0);
-        result = 31 * result + (subscriberCount != null ? subscriberCount.hashCode() : 0);
-        result = 31 * result + (description != null ? description.hashCode() : 0);
-        return result;
-    }
-}

app/src/main/java/org/schabi/newpipe/database/subscription/SubscriptionEntity.kt

@@ -0,0 +1,87 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.subscription
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.Ignore
+import androidx.room.Index
+import androidx.room.PrimaryKey
+import org.schabi.newpipe.extractor.channel.ChannelInfo
+import org.schabi.newpipe.extractor.channel.ChannelInfoItem
+import org.schabi.newpipe.util.NO_SERVICE_ID
+import org.schabi.newpipe.util.image.ImageStrategy
+
+@Entity(
+    tableName = SubscriptionEntity.Companion.SUBSCRIPTION_TABLE,
+    indices = [
+        Index(
+            value = [SubscriptionEntity.Companion.SUBSCRIPTION_SERVICE_ID, SubscriptionEntity.Companion.SUBSCRIPTION_URL],
+            unique = true
+        )
+    ]
+)
+data class SubscriptionEntity(
+    @PrimaryKey(autoGenerate = true)
+    var uid: Long = 0,
+
+    @ColumnInfo(name = SUBSCRIPTION_SERVICE_ID)
+    var serviceId: Int = NO_SERVICE_ID,
+
+    @ColumnInfo(name = SUBSCRIPTION_URL)
+    var url: String? = null,
+
+    @ColumnInfo(name = SUBSCRIPTION_NAME)
+    var name: String? = null,
+
+    @ColumnInfo(name = SUBSCRIPTION_AVATAR_URL)
+    var avatarUrl: String? = null,
+
+    @ColumnInfo(name = SUBSCRIPTION_SUBSCRIBER_COUNT)
+    var subscriberCount: Long? = null,
+
+    @ColumnInfo(name = SUBSCRIPTION_DESCRIPTION)
+    var description: String? = null,
+
+    @get:NotificationMode
+    @ColumnInfo(name = SUBSCRIPTION_NOTIFICATION_MODE)
+    var notificationMode: Int = 0
+) {
+    @Ignore
+    fun toChannelInfoItem(): ChannelInfoItem {
+        return ChannelInfoItem(this.serviceId, this.url, this.name).apply {
+            thumbnails = ImageStrategy.dbUrlToImageList(this@SubscriptionEntity.avatarUrl)
+            subscriberCount = this.subscriberCount
+            description = this.description
+        }
+    }
+
+    companion object {
+        const val SUBSCRIPTION_UID: String = "uid"
+        const val SUBSCRIPTION_TABLE: String = "subscriptions"
+        const val SUBSCRIPTION_SERVICE_ID: String = "service_id"
+        const val SUBSCRIPTION_URL: String = "url"
+        const val SUBSCRIPTION_NAME: String = "name"
+        const val SUBSCRIPTION_AVATAR_URL: String = "avatar_url"
+        const val SUBSCRIPTION_SUBSCRIBER_COUNT: String = "subscriber_count"
+        const val SUBSCRIPTION_DESCRIPTION: String = "description"
+        const val SUBSCRIPTION_NOTIFICATION_MODE: String = "notification_mode"
+
+        @JvmStatic
+        @Ignore
+        fun from(info: ChannelInfo): SubscriptionEntity {
+            return SubscriptionEntity(
+                serviceId = info.serviceId,
+                url = info.url,
+                name = info.name,
+                avatarUrl = ImageStrategy.imageListToDbUrl(info.avatars),
+                description = info.description,
+                subscriberCount = info.subscriberCount
+            )
+        }
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelFragment.java

@@ -361,10 +361,10 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
                 final SubscriptionEntity channel = new SubscriptionEntity();
                 channel.setServiceId(info.getServiceId());
                 channel.setUrl(info.getUrl());
-                channel.setData(info.getName(),
-                        ImageStrategy.imageListToDbUrl(info.getAvatars()),
-                        info.getDescription(),
-                        info.getSubscriberCount());
+                channel.setName(info.getName());
+                channel.setAvatarUrl(ImageStrategy.imageListToDbUrl(info.getAvatars()));
+                channel.setDescription(info.getDescription());
+                channel.setSubscriberCount(info.getSubscriberCount());
                 channelSubscription = null;
                 updateNotifyButton(null);
                 subscribeButtonMonitor = monitorSubscribeButton(mapOnSubscribe(channel));

app/src/main/java/org/schabi/newpipe/local/bookmark/BookmarkFragment.java

@@ -140,7 +140,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
                 if (selectedItem instanceof PlaylistMetadataEntry) {
                     final PlaylistMetadataEntry entry = ((PlaylistMetadataEntry) selectedItem);
                     NavigationHelper.openLocalPlaylistFragment(fragmentManager, entry.getUid(),
-                            entry.name);
+                            entry.getOrderingName());
 
                 } else if (selectedItem instanceof PlaylistRemoteEntity) {
                     final PlaylistRemoteEntity entry = ((PlaylistRemoteEntity) selectedItem);
@@ -148,7 +148,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
                             fragmentManager,
                             entry.getServiceId(),
                             entry.getUrl(),
-                            entry.getName());
+                            entry.getOrderingName());
                 }
             }
 
@@ -378,11 +378,11 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
 
             if (item instanceof PlaylistMetadataEntry
                     && ((PlaylistMetadataEntry) item).getDisplayIndex() != i) {
-                ((PlaylistMetadataEntry) item).setDisplayIndex(i);
+                ((PlaylistMetadataEntry) item).setDisplayIndex((long) i);
                 localItemsUpdate.add((PlaylistMetadataEntry) item);
             } else if (item instanceof PlaylistRemoteEntity
                     && ((PlaylistRemoteEntity) item).getDisplayIndex() != i) {
-                ((PlaylistRemoteEntity) item).setDisplayIndex(i);
+                ((PlaylistRemoteEntity) item).setDisplayIndex((long) i);
                 remoteItemsUpdate.add((PlaylistRemoteEntity) item);
             }
         }
@@ -487,7 +487,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
     ///////////////////////////////////////////////////////////////////////////
 
     private void showRemoteDeleteDialog(final PlaylistRemoteEntity item) {
-        showDeleteDialog(item.getName(), item);
+        showDeleteDialog(item.getOrderingName(), item);
     }
 
     private void showLocalDialog(final PlaylistMetadataEntry selectedItem) {
@@ -508,7 +508,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
             if (items.get(index).equals(rename)) {
                 showRenameDialog(selectedItem);
             } else if (items.get(index).equals(delete)) {
-                showDeleteDialog(selectedItem.name, selectedItem);
+                showDeleteDialog(selectedItem.getOrderingName(), selectedItem);
             } else if (isThumbnailPermanent && items.get(index).equals(unsetThumbnail)) {
                 final long thumbnailStreamId = localPlaylistManager
                         .getAutomaticPlaylistThumbnailStreamId(selectedItem.getUid());
@@ -529,7 +529,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
                 DialogEditTextBinding.inflate(getLayoutInflater());
         dialogBinding.dialogEditText.setHint(R.string.name);
         dialogBinding.dialogEditText.setInputType(InputType.TYPE_CLASS_TEXT);
-        dialogBinding.dialogEditText.setText(selectedItem.name);
+        dialogBinding.dialogEditText.setText(selectedItem.getOrderingName());
 
         new AlertDialog.Builder(activity)
                 .setView(dialogBinding.getRoot())

app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistAppendDialog.java

@@ -1,5 +1,7 @@
 package org.schabi.newpipe.local.dialog;
 
+import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.DEFAULT_THUMBNAIL_ID;
+
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -14,7 +16,6 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import org.schabi.newpipe.NewPipeDatabase;
 import org.schabi.newpipe.R;
-import org.schabi.newpipe.database.playlist.model.PlaylistEntity;
 import org.schabi.newpipe.database.playlist.PlaylistDuplicatesEntry;
 import org.schabi.newpipe.database.stream.model.StreamEntity;
 import org.schabi.newpipe.local.LocalItemListAdapter;
@@ -138,7 +139,7 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
 
     private boolean anyPlaylistContainsDuplicates(final List<PlaylistDuplicatesEntry> playlists) {
         return playlists.stream()
-                .anyMatch(playlist -> playlist.timesStreamIsContained > 0);
+                .anyMatch(playlist -> playlist.getTimesStreamIsContained() > 0);
     }
 
     private void onPlaylistSelected(@NonNull final LocalPlaylistManager manager,
@@ -146,9 +147,9 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
                                     @NonNull final List<StreamEntity> streams) {
 
         final String toastText;
-        if (playlist.timesStreamIsContained > 0) {
+        if (playlist.getTimesStreamIsContained() > 0) {
             toastText = getString(R.string.playlist_add_stream_success_duplicate,
-                    playlist.timesStreamIsContained);
+                    playlist.getTimesStreamIsContained());
         } else {
             toastText = getString(R.string.playlist_add_stream_success);
         }
@@ -160,8 +161,9 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
                 .subscribe(ignored -> {
                     successToast.show();
 
-                    if (playlist.thumbnailUrl != null
-                            && playlist.thumbnailUrl.equals(PlaylistEntity.DEFAULT_THUMBNAIL)) {
+                    if (playlist.getThumbnailStreamId() != null
+                            && playlist.getThumbnailStreamId() == DEFAULT_THUMBNAIL_ID
+                    ) {
                         playlistDisposables.add(manager
                                 .changePlaylistThumbnail(playlist.getUid(), streams.get(0).getUid(),
                                         false)

app/src/main/java/org/schabi/newpipe/local/feed/FeedDatabaseManager.kt

@@ -177,7 +177,7 @@ class FeedDatabaseManager(context: Context) {
             .observeOn(AndroidSchedulers.mainThread())
     }
 
-    fun oldestSubscriptionUpdate(groupId: Long): Flowable<List<OffsetDateTime>> {
+    fun oldestSubscriptionUpdate(groupId: Long): Flowable<List<OffsetDateTime?>> {
         return when (groupId) {
             FeedGroupEntity.GROUP_ALL_ID -> feedTable.oldestSubscriptionUpdateFromAll()
             else -> feedTable.oldestSubscriptionUpdate(groupId)

app/src/main/java/org/schabi/newpipe/local/feed/FeedFragment.kt

@@ -507,7 +507,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
             .setTitle(R.string.feed_load_error)
             .setPositiveButton(R.string.unsubscribe) { _, _ ->
                 SubscriptionManager(requireContext())
-                    .deleteSubscription(subscriptionEntity.serviceId, subscriptionEntity.url)
+                    .deleteSubscription(subscriptionEntity.serviceId, subscriptionEntity.url!!)
                     .subscribe()
                 handleItemsErrors(nextItemsErrors)
             }

app/src/main/java/org/schabi/newpipe/local/feed/FeedViewModel.kt

@@ -65,7 +65,7 @@ class FeedViewModel(
             feedDatabaseManager.oldestSubscriptionUpdate(groupId),
 
             Function6 { t1: FeedEventManager.Event, t2: Boolean, t3: Boolean, t4: Boolean,
-                t5: Long, t6: List<OffsetDateTime> ->
+                t5: Long, t6: List<OffsetDateTime?> ->
                 return@Function6 CombineResultEventHolder(t1, t2, t3, t4, t5, t6.firstOrNull())
             }
         )

app/src/main/java/org/schabi/newpipe/local/holder/LocalPlaylistItemHolder.java

@@ -35,15 +35,15 @@ public class LocalPlaylistItemHolder extends PlaylistItemHolder {
         }
         final PlaylistMetadataEntry item = (PlaylistMetadataEntry) localItem;
 
-        itemTitleView.setText(item.name);
+        itemTitleView.setText(item.getOrderingName());
         itemStreamCountView.setText(Localization.localizeStreamCountMini(
-                itemStreamCountView.getContext(), item.streamCount));
+                itemStreamCountView.getContext(), item.getStreamCount()));
         itemUploaderView.setVisibility(View.INVISIBLE);
 
-        PicassoHelper.loadPlaylistThumbnail(item.thumbnailUrl).into(itemThumbnailView);
+        PicassoHelper.loadPlaylistThumbnail(item.getThumbnailUrl()).into(itemThumbnailView);
 
         if (item instanceof PlaylistDuplicatesEntry
-                && ((PlaylistDuplicatesEntry) item).timesStreamIsContained > 0) {
+                && ((PlaylistDuplicatesEntry) item).getTimesStreamIsContained() > 0) {
             itemView.setAlpha(GRAYED_OUT_ALPHA);
         } else {
             itemView.setAlpha(1.0f);

app/src/main/java/org/schabi/newpipe/local/holder/RemotePlaylistItemHolder.java

@@ -34,7 +34,7 @@ public class RemotePlaylistItemHolder extends PlaylistItemHolder {
         }
         final PlaylistRemoteEntity item = (PlaylistRemoteEntity) localItem;
 
-        itemTitleView.setText(item.getName());
+        itemTitleView.setText(item.getOrderingName());
         itemStreamCountView.setText(Localization.localizeStreamCountMini(
                 itemStreamCountView.getContext(), item.getStreamCount()));
         // Here is where the uploader name is set in the bookmarked playlists library

app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistManager.java

@@ -148,7 +148,7 @@ public class LocalPlaylistManager {
 
     public boolean getIsPlaylistThumbnailPermanent(final long playlistId) {
         return playlistTable.getPlaylist(playlistId).blockingFirst().get(0)
-                .getIsThumbnailPermanent();
+                .isThumbnailPermanent();
     }
 
     public long getAutomaticPlaylistThumbnailStreamId(final long playlistId) {
@@ -174,7 +174,7 @@ public class LocalPlaylistManager {
                     }
                     if (thumbnailStreamId != THUMBNAIL_ID_LEAVE_UNCHANGED) {
                         playlist.setThumbnailStreamId(thumbnailStreamId);
-                        playlist.setIsThumbnailPermanent(isPermanent);
+                        playlist.setThumbnailPermanent(isPermanent);
                     }
                     return playlistTable.update(playlist);
                 }).subscribeOn(Schedulers.io());

app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionManager.kt

@@ -26,7 +26,7 @@ class SubscriptionManager(context: Context) {
     private val feedDatabaseManager = FeedDatabaseManager(context)
 
     fun subscriptionTable(): SubscriptionDAO = subscriptionTable
-    fun subscriptions() = subscriptionTable.all
+    fun subscriptions() = subscriptionTable.getAll()
 
     fun getSubscriptions(
         currentGroupId: Long = FeedGroupEntity.GROUP_ALL_ID,
@@ -44,7 +44,7 @@ class SubscriptionManager(context: Context) {
                 }
             }
             showOnlyUngrouped -> subscriptionTable.getSubscriptionsOnlyUngrouped(currentGroupId)
-            else -> subscriptionTable.all
+            else -> subscriptionTable.getAll()
         }
     }
 
@@ -71,12 +71,12 @@ class SubscriptionManager(context: Context) {
         subscriptionTable.getSubscription(info.serviceId, info.url)
             .flatMapCompletable {
                 Completable.fromRunnable {
-                    it.setData(
-                        info.name,
-                        ImageStrategy.imageListToDbUrl(info.avatars),
-                        info.description,
-                        info.subscriberCount
-                    )
+                    it.apply {
+                        name = info.name
+                        avatarUrl = ImageStrategy.imageListToDbUrl(info.avatars)
+                        description = info.description
+                        subscriberCount = info.subscriberCount
+                    }
                     subscriptionTable.update(it)
                 }
             }

app/src/main/java/org/schabi/newpipe/player/mediabrowser/MediaBrowserImpl.kt

@@ -315,7 +315,7 @@ class MediaBrowserImpl(
     }
 
     private fun populateHistory(): Single<List<MediaBrowserCompat.MediaItem>> {
-        val history = database.streamHistoryDAO().getHistory().firstOrError()
+        val history = database.streamHistoryDAO().history.firstOrError()
         return history.map { items ->
             items.map { this.createHistoryMediaItem(it) }
         }

app/src/main/java/org/schabi/newpipe/player/mediabrowser/MediaBrowserPlaybackPreparer.kt

@@ -215,7 +215,7 @@ class MediaBrowserPlaybackPreparer(
         }
 
         val streamId = path[0].toLong()
-        return database.streamHistoryDAO().getHistory()
+        return database.streamHistoryDAO().history
             .firstOrError()
             .map { items ->
                 val infoItems = items

app/src/main/java/org/schabi/newpipe/settings/SelectPlaylistFragment.java

@@ -118,12 +118,12 @@ public class SelectPlaylistFragment extends DialogFragment {
 
             if (selectedItem instanceof PlaylistMetadataEntry) {
                 final PlaylistMetadataEntry entry = ((PlaylistMetadataEntry) selectedItem);
-                onSelectedListener.onLocalPlaylistSelected(entry.getUid(), entry.name);
+                onSelectedListener.onLocalPlaylistSelected(entry.getUid(), entry.getOrderingName());
 
             } else if (selectedItem instanceof PlaylistRemoteEntity) {
                 final PlaylistRemoteEntity entry = ((PlaylistRemoteEntity) selectedItem);
                 onSelectedListener.onRemotePlaylistSelected(
-                        entry.getServiceId(), entry.getUrl(), entry.getName());
+                        entry.getServiceId(), entry.getUrl(), entry.getOrderingName());
             }
         }
         dismiss();
@@ -157,14 +157,15 @@ public class SelectPlaylistFragment extends DialogFragment {
             if (selectedItem instanceof PlaylistMetadataEntry) {
                 final PlaylistMetadataEntry entry = ((PlaylistMetadataEntry) selectedItem);
 
-                holder.titleView.setText(entry.name);
+                holder.titleView.setText(entry.getOrderingName());
                 holder.view.setOnClickListener(view -> clickedItem(position));
-                PicassoHelper.loadPlaylistThumbnail(entry.thumbnailUrl).into(holder.thumbnailView);
+                PicassoHelper.loadPlaylistThumbnail(entry.getThumbnailUrl())
+                        .into(holder.thumbnailView);
 
             } else if (selectedItem instanceof PlaylistRemoteEntity) {
                 final PlaylistRemoteEntity entry = ((PlaylistRemoteEntity) selectedItem);
 
-                holder.titleView.setText(entry.getName());
+                holder.titleView.setText(entry.getOrderingName());
                 holder.view.setOnClickListener(view -> clickedItem(position));
                 PicassoHelper.loadPlaylistThumbnail(entry.getThumbnailUrl())
                         .into(holder.thumbnailView);

app/src/main/java/org/schabi/newpipe/settings/notifications/NotificationModeConfigAdapter.kt

@@ -31,7 +31,7 @@ class NotificationModeConfigAdapter(
 
     fun update(newData: List<SubscriptionEntity>) {
         val items = newData.map {
-            SubscriptionItem(it.uid, it.name, it.notificationMode, it.serviceId, it.url)
+            SubscriptionItem(it.uid, it.name!!, it.notificationMode, it.serviceId, it.url!!)
         }
         submitList(items)
     }

app/src/test/java/org/schabi/newpipe/database/playlist/PlaylistLocalItemTest.java

@@ -1,106 +0,0 @@
-package org.schabi.newpipe.database.playlist;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-import org.junit.Test;
-import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
-import org.schabi.newpipe.local.bookmark.MergedPlaylistManager;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class PlaylistLocalItemTest {
-    @Test
-    public void emptyPlaylists() {
-        final List<PlaylistMetadataEntry> localPlaylists = new ArrayList<>();
-        final List<PlaylistRemoteEntity> remotePlaylists = new ArrayList<>();
-        final List<PlaylistLocalItem> mergedPlaylists =
-                MergedPlaylistManager.merge(localPlaylists, remotePlaylists);
-
-        assertEquals(0, mergedPlaylists.size());
-    }
-
-    @Test
-    public void onlyLocalPlaylists() {
-        final List<PlaylistMetadataEntry> localPlaylists = new ArrayList<>();
-        final List<PlaylistRemoteEntity> remotePlaylists = new ArrayList<>();
-        localPlaylists.add(new PlaylistMetadataEntry(1, "name1", "", false, -1, 0, 1));
-        localPlaylists.add(new PlaylistMetadataEntry(2, "name2", "", false, -1, 1, 1));
-        localPlaylists.add(new PlaylistMetadataEntry(3, "name3", "", false, -1, 3, 1));
-        final List<PlaylistLocalItem> mergedPlaylists =
-                MergedPlaylistManager.merge(localPlaylists, remotePlaylists);
-
-        assertEquals(3, mergedPlaylists.size());
-        assertEquals(0, mergedPlaylists.get(0).getDisplayIndex());
-        assertEquals(1, mergedPlaylists.get(1).getDisplayIndex());
-        assertEquals(3, mergedPlaylists.get(2).getDisplayIndex());
-    }
-
-    @Test
-    public void onlyRemotePlaylists() {
-        final List<PlaylistMetadataEntry> localPlaylists = new ArrayList<>();
-        final List<PlaylistRemoteEntity> remotePlaylists = new ArrayList<>();
-        remotePlaylists.add(new PlaylistRemoteEntity(
-                1, "name1", "url1", "", "", 1, 1L));
-        remotePlaylists.add(new PlaylistRemoteEntity(
-                2, "name2", "url2", "", "", 2, 1L));
-        remotePlaylists.add(new PlaylistRemoteEntity(
-                3, "name3", "url3", "", "", 4, 1L));
-        final List<PlaylistLocalItem> mergedPlaylists =
-                MergedPlaylistManager.merge(localPlaylists, remotePlaylists);
-
-        assertEquals(3, mergedPlaylists.size());
-        assertEquals(1, mergedPlaylists.get(0).getDisplayIndex());
-        assertEquals(2, mergedPlaylists.get(1).getDisplayIndex());
-        assertEquals(4, mergedPlaylists.get(2).getDisplayIndex());
-    }
-
-    @Test
-    public void sameIndexWithDifferentName() {
-        final List<PlaylistMetadataEntry> localPlaylists = new ArrayList<>();
-        final List<PlaylistRemoteEntity> remotePlaylists = new ArrayList<>();
-        localPlaylists.add(new PlaylistMetadataEntry(1, "name1", "", false, -1, 0, 1));
-        localPlaylists.add(new PlaylistMetadataEntry(2, "name2", "", false, -1, 1, 1));
-        remotePlaylists.add(new PlaylistRemoteEntity(
-                1, "name3", "url1", "", "", 0, 1L));
-        remotePlaylists.add(new PlaylistRemoteEntity(
-                2, "name4", "url2", "", "", 1, 1L));
-        final List<PlaylistLocalItem> mergedPlaylists =
-                MergedPlaylistManager.merge(localPlaylists, remotePlaylists);
-
-        assertEquals(4, mergedPlaylists.size());
-        assertTrue(mergedPlaylists.get(0) instanceof PlaylistMetadataEntry);
-        assertEquals("name1", ((PlaylistMetadataEntry) mergedPlaylists.get(0)).name);
-        assertTrue(mergedPlaylists.get(1) instanceof PlaylistRemoteEntity);
-        assertEquals("name3", ((PlaylistRemoteEntity) mergedPlaylists.get(1)).getName());
-        assertTrue(mergedPlaylists.get(2) instanceof PlaylistMetadataEntry);
-        assertEquals("name2", ((PlaylistMetadataEntry) mergedPlaylists.get(2)).name);
-        assertTrue(mergedPlaylists.get(3) instanceof PlaylistRemoteEntity);
-        assertEquals("name4", ((PlaylistRemoteEntity) mergedPlaylists.get(3)).getName());
-    }
-
-    @Test
-    public void sameNameWithDifferentIndex() {
-        final List<PlaylistMetadataEntry> localPlaylists = new ArrayList<>();
-        final List<PlaylistRemoteEntity> remotePlaylists = new ArrayList<>();
-        localPlaylists.add(new PlaylistMetadataEntry(1, "name1", "", false, -1, 1, 1));
-        localPlaylists.add(new PlaylistMetadataEntry(2, "name2", "", false, -1, 3, 1));
-        remotePlaylists.add(new PlaylistRemoteEntity(
-                1, "name1", "url1", "", "", 0, 1L));
-        remotePlaylists.add(new PlaylistRemoteEntity(
-                2, "name2", "url2", "", "", 2, 1L));
-        final List<PlaylistLocalItem> mergedPlaylists =
-                MergedPlaylistManager.merge(localPlaylists, remotePlaylists);
-
-        assertEquals(4, mergedPlaylists.size());
-        assertTrue(mergedPlaylists.get(0) instanceof PlaylistRemoteEntity);
-        assertEquals("name1", ((PlaylistRemoteEntity) mergedPlaylists.get(0)).getName());
-        assertTrue(mergedPlaylists.get(1) instanceof PlaylistMetadataEntry);
-        assertEquals("name1", ((PlaylistMetadataEntry) mergedPlaylists.get(1)).name);
-        assertTrue(mergedPlaylists.get(2) instanceof PlaylistRemoteEntity);
-        assertEquals("name2", ((PlaylistRemoteEntity) mergedPlaylists.get(2)).getName());
-        assertTrue(mergedPlaylists.get(3) instanceof PlaylistMetadataEntry);
-        assertEquals("name2", ((PlaylistMetadataEntry) mergedPlaylists.get(3)).name);
-    }
-}

app/src/test/java/org/schabi/newpipe/database/playlist/PlaylistLocalItemTest.kt

@@ -0,0 +1,102 @@
+/*
+ * SPDX-FileCopyrightText: 2022-2024 NewPipe contributors <https://newpipe.net>
+ * SPDX-FileCopyrightText: 2025 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe.database.playlist
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity
+import org.schabi.newpipe.local.bookmark.MergedPlaylistManager
+
+class PlaylistLocalItemTest {
+
+    @Test
+    fun emptyPlaylists() {
+        val localPlaylists = listOf<PlaylistMetadataEntry?>()
+        val remotePlaylists = listOf<PlaylistRemoteEntity?>()
+        val mergedPlaylists = MergedPlaylistManager.merge(localPlaylists, remotePlaylists)
+        assertEquals(0, mergedPlaylists.size)
+    }
+
+    @Test
+    fun onlyLocalPlaylists() {
+        val localPlaylists = listOf<PlaylistMetadataEntry?>(
+            PlaylistMetadataEntry(1, "name1", "", 0, false, -1, 1),
+            PlaylistMetadataEntry(2, "name2", "", 1, false, -1, 1),
+            PlaylistMetadataEntry(3, "name3", "", 3, false, -1, 1)
+        )
+        val remotePlaylists = listOf<PlaylistRemoteEntity?>()
+        val mergedPlaylists = MergedPlaylistManager.merge(localPlaylists, remotePlaylists)
+
+        assertEquals(3, mergedPlaylists.size)
+        assertEquals(0L, mergedPlaylists[0]!!.displayIndex)
+        assertEquals(1L, mergedPlaylists[1]!!.displayIndex)
+        assertEquals(3L, mergedPlaylists[2]!!.displayIndex)
+    }
+
+    @Test
+    fun onlyRemotePlaylists() {
+        val localPlaylists = listOf<PlaylistMetadataEntry?>()
+        val remotePlaylists = listOf<PlaylistRemoteEntity?>(
+            PlaylistRemoteEntity(1, 1, "name1", "url1", "", "", 1, 1),
+            PlaylistRemoteEntity(2, 2, "name2", "url2", "", "", 2, 1),
+            PlaylistRemoteEntity(3, 3, "name3", "url3", "", "", 4, 1)
+        )
+        val mergedPlaylists = MergedPlaylistManager.merge(localPlaylists, remotePlaylists)
+
+        assertEquals(3, mergedPlaylists.size)
+        assertEquals(1L, mergedPlaylists[0]!!.displayIndex)
+        assertEquals(2L, mergedPlaylists[1]!!.displayIndex)
+        assertEquals(4L, mergedPlaylists[2]!!.displayIndex)
+    }
+
+    @Test
+    fun sameIndexWithDifferentName() {
+        val localPlaylists = listOf<PlaylistMetadataEntry?>(
+            PlaylistMetadataEntry(1, "name1", "", 0, false, -1, 1),
+            PlaylistMetadataEntry(2, "name2", "", 1, false, -1, 1)
+        )
+        val remotePlaylists = listOf<PlaylistRemoteEntity?>(
+            PlaylistRemoteEntity(1, 1, "name3", "url1", "", "", 0, 1),
+            PlaylistRemoteEntity(2, 2, "name4", "url2", "", "", 1, 1)
+        )
+        val mergedPlaylists = MergedPlaylistManager.merge(localPlaylists, remotePlaylists)
+
+        assertEquals(4, mergedPlaylists.size)
+        assertTrue(mergedPlaylists[0] is PlaylistMetadataEntry)
+        assertEquals("name1", (mergedPlaylists[0] as PlaylistMetadataEntry).orderingName)
+        assertTrue(mergedPlaylists[1] is PlaylistRemoteEntity)
+        assertEquals("name3", (mergedPlaylists[1] as PlaylistRemoteEntity).orderingName)
+        assertTrue(mergedPlaylists[2] is PlaylistMetadataEntry)
+        assertEquals("name2", (mergedPlaylists[2] as PlaylistMetadataEntry).orderingName)
+        assertTrue(mergedPlaylists[3] is PlaylistRemoteEntity)
+        assertEquals("name4", (mergedPlaylists[3] as PlaylistRemoteEntity).orderingName)
+    }
+
+    @Test
+    fun sameNameWithDifferentIndex() {
+        val localPlaylists = listOf<PlaylistMetadataEntry?>(
+            PlaylistMetadataEntry(1, "name1", "", 1, false, -1, 1),
+            PlaylistMetadataEntry(2, "name2", "", 3, false, -1, 1)
+        )
+        val remotePlaylists = listOf<PlaylistRemoteEntity?>(
+            PlaylistRemoteEntity(1, 1, "name1", "url1", "", "", 0, 1),
+            PlaylistRemoteEntity(2, 2, "name2", "url2", "", "", 2, 1)
+        )
+        val mergedPlaylists = MergedPlaylistManager.merge(localPlaylists, remotePlaylists)
+
+        assertEquals(4, mergedPlaylists.size)
+        assertTrue(mergedPlaylists[0] is PlaylistRemoteEntity)
+        assertEquals("name1", (mergedPlaylists[0] as PlaylistRemoteEntity).orderingName)
+        assertTrue(mergedPlaylists[1] is PlaylistMetadataEntry)
+        assertEquals("name1", (mergedPlaylists[1] as PlaylistMetadataEntry).orderingName)
+        assertTrue(mergedPlaylists[2] is PlaylistRemoteEntity)
+        assertEquals("name2", (mergedPlaylists[2] as PlaylistRemoteEntity).orderingName)
+        assertTrue(mergedPlaylists[3] is PlaylistMetadataEntry)
+        assertEquals("name2", (mergedPlaylists[3] as PlaylistMetadataEntry).orderingName)
+    }
+}

build.gradle.kts

@@ -6,7 +6,7 @@
 plugins {
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.jetbrains.kotlin.android) apply false
-    alias(libs.plugins.jetbrains.kotlin.kapt) apply false
+    alias(libs.plugins.google.ksp) apply false
     alias(libs.plugins.jetbrains.kotlin.parcelize) apply false
     alias(libs.plugins.sonarqube) apply false
 }

gradle/libs.versions.toml

@@ -23,6 +23,7 @@ jsoup = "1.21.2"
 junit = "4.13.2"
 junit-ext = "1.1.5"
 kotlin = "1.9.25"
+ksp = "1.9.25-1.0.20"
 ktlint = "0.45.2"
 leakcanary = "2.12"
 lifecycle = "2.6.2"
@@ -130,7 +131,7 @@ squareup-picasso = { module = "com.squareup.picasso:picasso", version.ref = "pic
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
+google-ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
 jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
-jetbrains-kotlin-kapt = { id = "org.jetbrains.kotlin.kapt", version.ref = "kotlin" }
 jetbrains-kotlin-parcelize = { id = "org.jetbrains.kotlin.plugin.parcelize", version.ref = "kotlin" }
 sonarqube = { id = "org.sonarqube", version.ref = "sonarqube" }