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Name downloaded files by song title (#173)
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Submodule ComposeKit
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from 5377c0 to 1a4191
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106 changes: 106 additions & 0 deletions
106
...ndroidMain/kotlin/com/toasterofbread/spmp/platform/download/LocalSongMetadataProcessor.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package com.toasterofbread.spmp.platform.download | ||
|
|
||
| import com.toasterofbread.spmp.model.mediaitem.song.Song | ||
| import com.toasterofbread.spmp.platform.AppContext | ||
| import com.toasterofbread.composekit.platform.PlatformFile | ||
| import com.toasterofbread.spmp.model.mediaitem.MediaItem | ||
| import com.toasterofbread.spmp.model.mediaitem.MediaItemData | ||
| import com.toasterofbread.spmp.model.mediaitem.artist.Artist.Companion.getForItemId | ||
| import com.toasterofbread.spmp.model.mediaitem.artist.ArtistData | ||
| import com.toasterofbread.spmp.model.mediaitem.artist.ArtistRef | ||
| import com.toasterofbread.spmp.model.mediaitem.playlist.PlaylistData | ||
| import com.toasterofbread.spmp.model.mediaitem.playlist.RemotePlaylist | ||
| import com.toasterofbread.spmp.model.mediaitem.playlist.RemotePlaylistData | ||
| import com.toasterofbread.spmp.model.mediaitem.song.SongData | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.withContext | ||
| import kotlinx.serialization.Serializable | ||
| import kotlinx.serialization.encodeToString | ||
| import kotlinx.serialization.json.Json | ||
| import org.jaudiotagger.audio.AudioFile | ||
| import org.jaudiotagger.audio.AudioFileIO | ||
| import org.jaudiotagger.tag.FieldKey | ||
| import org.jaudiotagger.tag.Tag | ||
| import org.jaudiotagger.tag.mp4.Mp4Tag | ||
| import java.io.File | ||
|
|
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| private val CUSTOM_METADATA_KEY: FieldKey = FieldKey.CUSTOM1 | ||
|
|
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| object LocalSongMetadataProcessor { | ||
| @Serializable | ||
| private data class CustomMetadata( | ||
| val song_id: String?, val artist_id: String?, val album_id: String? | ||
| ) | ||
|
|
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| private fun <T: MediaItemData> MediaItem.getItemWithOrForTitle(item_id: String?, item_title: String?, createItem: (String) -> T): T? { | ||
| val item: T | ||
| if (item_id != null) { | ||
| item = createItem(item_id) | ||
| } | ||
| else if (item_title != null) { | ||
| // TODO | ||
| item = createItem(getForItemId(this)) | ||
| } | ||
| else { | ||
| return null | ||
| } | ||
|
|
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| item.title = item_title | ||
| return item | ||
| } | ||
|
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| suspend fun addMetadataToLocalSong(song: Song, file: PlatformFile, final_filename: String, context: AppContext) = withContext(Dispatchers.IO) { | ||
| val tag: Tag = Mp4Tag().apply { | ||
| fun set(key: FieldKey, value: String?) { | ||
| if (value == null) { | ||
| deleteField(key) | ||
| } | ||
| else { | ||
| setField(key, value) | ||
| } | ||
| } | ||
|
|
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| val artist: ArtistRef? = song.Artist.get(context.database) | ||
| val album: RemotePlaylist? = song.Album.get(context.database) | ||
|
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| set(FieldKey.TITLE, song.getActiveTitle(context.database)) | ||
| set(FieldKey.ARTIST, artist?.getActiveTitle(context.database)) | ||
| set(FieldKey.ALBUM, album?.getActiveTitle(context.database)) | ||
| set(FieldKey.URL_OFFICIAL_ARTIST_SITE, song.Album.get(context.database)?.getURL(context)) | ||
| set(FieldKey.URL_LYRICS_SITE, song.Lyrics.get(context.database)?.getUrl()) | ||
|
|
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| val custom_metadata: CustomMetadata = | ||
| CustomMetadata( | ||
| song.id, | ||
| artist?.id, | ||
| album?.id | ||
| ) | ||
| set(CUSTOM_METADATA_KEY, Json.encodeToString(custom_metadata)) | ||
| } | ||
|
|
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| val dot_index: Int = final_filename.lastIndexOf('.') | ||
| val extension: String = if (dot_index == -1) final_filename else final_filename.substring(dot_index + 1) | ||
|
|
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| val audio_file: AudioFile = AudioFileIO.readAs(File(file.absolute_path), extension) | ||
| audio_file.tag = tag | ||
| audio_file.commit() | ||
| } | ||
|
|
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| suspend fun readLocalSongMetadata(file: PlatformFile, match_id: String? = null, load_data: Boolean = true): SongData? = withContext(Dispatchers.IO) { | ||
| val tag: Tag = AudioFileIO.read(File(file.absolute_path)).tag | ||
|
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| val custom_metadata: CustomMetadata = Json.decodeFromString(tag.getFirst(CUSTOM_METADATA_KEY)) | ||
| if (custom_metadata.song_id == null || (match_id != null && custom_metadata.song_id != match_id)) { | ||
| return@withContext null | ||
| } | ||
|
|
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| return@withContext SongData(custom_metadata.song_id).apply { | ||
| if (!load_data) { | ||
| return@apply | ||
| } | ||
| title = tag.getFirst(FieldKey.TITLE) | ||
| artist = getItemWithOrForTitle(custom_metadata.artist_id, tag.getFirst(FieldKey.ARTIST)) { ArtistData(it) } | ||
| album = getItemWithOrForTitle(custom_metadata.album_id, tag.getFirst(FieldKey.ALBUM)) { RemotePlaylistData(it) } | ||
| } | ||
| } | ||
| } |
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