PlayerAndroid/app/src/main/java/code/name/monkey/retromusic/mvp/presenter/SongPresenter.kt

64 lines
1.9 KiB
Kotlin

/*
* Copyright (c) 2019 Hemanth Savarala.
*
* Licensed under the GNU General Public License v3
*
* This is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by
* the Free Software Foundation either version 3 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*/
package code.name.monkey.retromusic.mvp.presenter
import code.name.monkey.retromusic.Result
import code.name.monkey.retromusic.model.Song
import code.name.monkey.retromusic.mvp.Presenter
import code.name.monkey.retromusic.mvp.PresenterImpl
import code.name.monkey.retromusic.providers.interfaces.Repository
import kotlinx.coroutines.*
import java.util.*
import javax.inject.Inject
import kotlin.coroutines.CoroutineContext
/**
* Created by hemanths on 10/08/17.
*/
interface SongView {
fun songs(songs: ArrayList<Song>)
fun showEmptyView()
}
interface SongPresenter : Presenter<SongView> {
fun loadSongs()
class SongPresenterImpl @Inject constructor(
private val repository: Repository
) : PresenterImpl<SongView>(), SongPresenter, CoroutineScope {
private var job: Job = Job()
override val coroutineContext: CoroutineContext
get() = Dispatchers.IO + job
override fun loadSongs() {
launch {
when (val songs = repository.allSongs()) {
is Result.Success -> withContext(Dispatchers.Main) { view?.songs(songs.data) }
is Result.Error -> view?.showEmptyView()
}
}
}
override fun detachView() {
super.detachView()
job.cancel();
}
}
}