Fix #106, #108, #113

app/src/main/kotlin/it/vfsfitvnm/vimusic/models/DetailedSong.kt

@@ -5,7 +5,7 @@ import androidx.room.Junction
 import androidx.room.Relation
 
 
-data class DetailedSong(
+open class DetailedSong(
     @Embedded val song: Song,
     @Relation(
         entity = SongAlbumMap::class,

app/src/main/kotlin/it/vfsfitvnm/vimusic/models/DetailedSongWithContentLength.kt

@@ -0,0 +1,17 @@
+package it.vfsfitvnm.vimusic.models
+
+import androidx.room.Relation
+
+
+class DetailedSongWithContentLength(
+    song: Song,
+    albumId: String?,
+    artists: List<Artist>?,
+    @Relation(
+        entity = Format::class,
+        entityColumn = "songId",
+        parentColumn = "id",
+        projection = ["contentLength"]
+    )
+    val contentLength: Long?
+) : DetailedSong(song, albumId, artists)

app/src/main/kotlin/it/vfsfitvnm/vimusic/models/Format.kt

@@ -0,0 +1,26 @@
+package it.vfsfitvnm.vimusic.models
+
+import androidx.compose.runtime.Immutable
+import androidx.room.*
+
+
+@Immutable
+@Entity(
+    foreignKeys = [
+        ForeignKey(
+            entity = Song::class,
+            parentColumns = ["id"],
+            childColumns = ["songId"],
+            onDelete = ForeignKey.CASCADE
+        )
+    ]
+)
+data class Format(
+    @PrimaryKey val songId: String,
+    val itag: Int? = null,
+    val mimeType: String? = null,
+    val bitrate: Long? = null,
+    val contentLength: Long? = null,
+    val lastModified: Long? = null,
+    val loudnessDb: Float? = null
+)

app/src/main/kotlin/it/vfsfitvnm/vimusic/models/Song.kt

@@ -12,9 +12,7 @@ data class Song(
     val thumbnailUrl: String?,
     val lyrics: String? = null,
     val likedAt: Long? = null,
-    val totalPlayTimeMs: Long = 0,
-    val loudnessDb: Float? = null,
-    val contentLength: Long? = null,
+    val totalPlayTimeMs: Long = 0
 ) {
     val formattedTotalPlayTime: String
         get() {