149 lines
5.0 KiB
Kotlin
149 lines
5.0 KiB
Kotlin
/*
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* Copyright (c) 2019 Hemanth Savarala.
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*
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* Licensed under the GNU General Public License v3
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*
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* This is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by
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* the Free Software Foundation either version 3 of the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*/
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package code.name.monkey.retromusic.loaders
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import android.content.Context
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import android.database.Cursor
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import android.provider.BaseColumns
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import code.name.monkey.retromusic.Constants.NUMBER_OF_TOP_TRACKS
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import code.name.monkey.retromusic.model.Album
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import code.name.monkey.retromusic.model.Artist
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import code.name.monkey.retromusic.model.Song
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import code.name.monkey.retromusic.providers.HistoryStore
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import code.name.monkey.retromusic.providers.SongPlayCountStore
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import java.util.ArrayList
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/**
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* Created by hemanths on 16/08/17.
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*/
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object TopAndRecentlyPlayedTracksLoader {
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fun getRecentlyPlayedTracks(context: Context): ArrayList<Song> {
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return SongLoader.getSongs(makeRecentTracksCursorAndClearUpDatabase(context))
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}
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fun getTopTracks(context: Context): ArrayList<Song> {
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return SongLoader.getSongs(makeTopTracksCursorAndClearUpDatabase(context))
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}
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private fun makeRecentTracksCursorAndClearUpDatabase(context: Context): Cursor? {
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val retCursor = makeRecentTracksCursorImpl(context)
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// clean up the databases with any ids not found
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if (retCursor != null) {
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val missingIds = retCursor.missingIds
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if (missingIds != null && missingIds.size > 0) {
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for (id in missingIds) {
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HistoryStore.getInstance(context).removeSongId(id)
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}
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}
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}
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return retCursor
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}
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private fun makeTopTracksCursorAndClearUpDatabase(context: Context): Cursor? {
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val retCursor = makeTopTracksCursorImpl(context)
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// clean up the databases with any ids not found
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if (retCursor != null) {
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val missingIds = retCursor.missingIds
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if (missingIds != null && missingIds.size > 0) {
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for (id in missingIds) {
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SongPlayCountStore.getInstance(context).removeItem(id)
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}
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}
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}
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return retCursor
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}
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private fun makeRecentTracksCursorImpl(context: Context): SortedLongCursor? {
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// first get the top results ids from the internal database
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val songs = HistoryStore.getInstance(context).queryRecentIds()
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try {
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return makeSortedCursor(
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context, songs,
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songs!!.getColumnIndex(HistoryStore.RecentStoreColumns.ID)
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)
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} finally {
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songs?.close()
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}
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}
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private fun makeTopTracksCursorImpl(context: Context): SortedLongCursor? {
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// first get the top results ids from the internal database
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val songs = SongPlayCountStore.getInstance(context)
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.getTopPlayedResults(NUMBER_OF_TOP_TRACKS)
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songs.use { localSongs ->
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return makeSortedCursor(
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context, localSongs,
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localSongs.getColumnIndex(SongPlayCountStore.SongPlayCountColumns.ID)
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)
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}
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}
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private fun makeSortedCursor(
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context: Context,
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cursor: Cursor?, idColumn: Int
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): SortedLongCursor? {
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if (cursor != null && cursor.moveToFirst()) {
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// create the list of ids to select against
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val selection = StringBuilder()
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selection.append(BaseColumns._ID)
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selection.append(" IN (")
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// this tracks the order of the ids
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val order = LongArray(cursor.count)
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var id = cursor.getLong(idColumn)
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selection.append(id)
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order[cursor.position] = id
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while (cursor.moveToNext()) {
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selection.append(",")
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id = cursor.getLong(idColumn)
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order[cursor.position] = id
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selection.append(id.toString())
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}
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selection.append(")")
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// get a list of songs with the data given the selection statement
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val songCursor = SongLoader.makeSongCursor(context, selection.toString(), null)
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if (songCursor != null) {
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// now return the wrapped TopTracksCursor to handle sorting given order
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return SortedLongCursor(songCursor, order, BaseColumns._ID)
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}
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}
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return null
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}
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fun getTopAlbums(
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context: Context
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): ArrayList<Album> {
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arrayListOf<Album>()
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return AlbumLoader.splitIntoAlbums(getTopTracks(context))
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}
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fun getTopArtists(context: Context): ArrayList<Artist> {
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return ArtistLoader.splitIntoArtists(getTopAlbums(context))
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}
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}
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