add database structure for local playlists

app/src/main/java/com/github/libretube/LibreTubeApp.kt

@@ -3,6 +3,7 @@ package com.github.libretube
 import android.app.Application
 import android.os.StrictMode
 import android.os.StrictMode.VmPolicy
+import android.util.Log
 import androidx.core.app.NotificationChannelCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.work.ExistingPeriodicWorkPolicy
@@ -12,6 +13,10 @@ import com.github.libretube.constants.BACKGROUND_CHANNEL_ID
 import com.github.libretube.constants.DOWNLOAD_CHANNEL_ID
 import com.github.libretube.constants.PUSH_CHANNEL_ID
 import com.github.libretube.db.DatabaseHolder
+import com.github.libretube.db.obj.LocalPlaylist
+import com.github.libretube.db.obj.LocalPlaylistItem
+import com.github.libretube.extensions.awaitQuery
+import com.github.libretube.extensions.query
 import com.github.libretube.util.ExceptionHandler
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NotificationHelper
@@ -36,6 +41,8 @@ class LibreTubeApp : Application() {
          */
         DatabaseHolder().initializeDatabase(this)
 
+        runDatabaseTests()
+
         /**
          * Bypassing fileUriExposedException, see https://stackoverflow.com/questions/38200282/android-os-fileuriexposedexception-file-storage-emulated-0-test-txt-exposed
          */
@@ -100,4 +107,23 @@ class LibreTubeApp : Application() {
             )
         )
     }
+
+    private fun runDatabaseTests() {
+        awaitQuery {
+            val playlist = LocalPlaylist(
+                name = "TEstlist",
+                thumbnailUrl = "thumb"
+            )
+            DatabaseHolder.Database.localPlaylistsDao().createPlaylist(playlist)
+            val playlistId = DatabaseHolder.Database.localPlaylistsDao().getAll().first().playlist.id
+            val video = LocalPlaylistItem(
+                videoId = "video",
+                playlistId = playlistId,
+                title = "awesomePlaylistTitle"
+            )
+            DatabaseHolder.Database.localPlaylistsDao().addPlaylistVideo(video)
+            val lists = DatabaseHolder.Database.localPlaylistsDao().getAll()
+            Log.e("lists", lists.toString())
+        }
+    }
 }

app/src/main/java/com/github/libretube/db/AppDatabase.kt

@@ -5,12 +5,15 @@ import androidx.room.Database
 import androidx.room.RoomDatabase
 import com.github.libretube.db.dao.CustomInstanceDao
 import com.github.libretube.db.dao.LocalSubscriptionDao
+import com.github.libretube.db.dao.LocalPlaylistsDao
 import com.github.libretube.db.dao.PlaylistBookmarkDao
 import com.github.libretube.db.dao.SearchHistoryDao
 import com.github.libretube.db.dao.WatchHistoryDao
 import com.github.libretube.db.dao.WatchPositionDao
 import com.github.libretube.db.obj.CustomInstance
 import com.github.libretube.db.obj.LocalSubscription
+import com.github.libretube.db.obj.LocalPlaylist
+import com.github.libretube.db.obj.LocalPlaylistItem
 import com.github.libretube.db.obj.PlaylistBookmark
 import com.github.libretube.db.obj.SearchHistoryItem
 import com.github.libretube.db.obj.WatchHistoryItem
@@ -23,11 +26,14 @@ import com.github.libretube.db.obj.WatchPosition
         SearchHistoryItem::class,
         CustomInstance::class,
         LocalSubscription::class,
-        PlaylistBookmark::class
+        PlaylistBookmark::class,
+        LocalPlaylist::class,
+        LocalPlaylistItem::class
     ],
-    version = 8,
+    version = 9,
     autoMigrations = [
-        AutoMigration(from = 7, to = 8)
+        AutoMigration(from = 7, to = 8),
+        AutoMigration(from = 8, to = 9)
     ]
 )
 abstract class AppDatabase : RoomDatabase() {
@@ -60,4 +66,9 @@ abstract class AppDatabase : RoomDatabase() {
      * Bookmarked Playlists
      */
     abstract fun playlistBookmarkDao(): PlaylistBookmarkDao
+
+    /**
+     * Local playlists
+     */
+    abstract fun localPlaylistsDao(): LocalPlaylistsDao
 }

app/src/main/java/com/github/libretube/db/dao/LocalPlaylistsDao.kt

@@ -0,0 +1,33 @@
+package com.github.libretube.db.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Transaction
+import androidx.room.Update
+import com.github.libretube.db.obj.LocalPlaylist
+import com.github.libretube.db.obj.LocalPlaylistItem
+import com.github.libretube.db.obj.LocalPlaylistWithVideos
+
+@Dao
+interface LocalPlaylistsDao {
+    @Transaction
+    @Query("SELECT * FROM LocalPlaylist")
+    fun getAll(): List<LocalPlaylistWithVideos>
+
+    @Insert
+    fun createPlaylist(playlist: LocalPlaylist)
+
+    @Update
+    fun updatePlaylist(playlist: LocalPlaylist)
+
+    @Delete
+    fun deletePlaylist(playlist: LocalPlaylist)
+
+    @Insert
+    fun addPlaylistVideo(playlistVideo: LocalPlaylistItem)
+
+    @Delete
+    fun removePlaylistVideo(playlistVideo: LocalPlaylistItem)
+}

app/src/main/java/com/github/libretube/db/obj/LocalPlaylist.kt

@@ -0,0 +1,12 @@
+package com.github.libretube.db.obj
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity
+data class LocalPlaylist(
+    @PrimaryKey(autoGenerate = true)
+    val id: Int = 0,
+    val name: String,
+    val thumbnailUrl: String
+)

app/src/main/java/com/github/libretube/db/obj/LocalPlaylistItem.kt

@@ -0,0 +1,19 @@
+package com.github.libretube.db.obj
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity
+data class LocalPlaylistItem(
+    @PrimaryKey(autoGenerate = true) val id: Int = 0,
+    @ColumnInfo val playlistId: Int,
+    @ColumnInfo val videoId: String,
+    @ColumnInfo val title: String? = null,
+    @ColumnInfo val uploadDate: String? = null,
+    @ColumnInfo val uploader: String? = null,
+    @ColumnInfo val uploaderUrl: String? = null,
+    @ColumnInfo val uploaderAvatar: String? = null,
+    @ColumnInfo val thumbnailUrl: String? = null,
+    @ColumnInfo val duration: Long? = null
+)

app/src/main/java/com/github/libretube/db/obj/LocalPlaylistWithVideos.kt

@@ -0,0 +1,13 @@
+package com.github.libretube.db.obj
+
+import androidx.room.Embedded
+import androidx.room.Relation
+
+data class LocalPlaylistWithVideos(
+    @Embedded val playlist: LocalPlaylist,
+    @Relation(
+        parentColumn = "id",
+        entityColumn = "playlistId"
+    )
+    val videos: List<LocalPlaylistItem>
+)