koel/resources/assets/js/stores/song.js

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import _ from 'lodash';
import http from '../services/http';
import utils from '../services/utils';
import stub from '../stubs/song';
import favoriteStore from './favorite';
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import userStore from './user';
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export default {
stub,
albums: [],
state: {
songs: [stub],
},
/**
* Init the store.
*
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* @param {Array} albums The array of albums to extract our songs from
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*/
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init(albums) {
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// Iterate through the albums. With each, add its songs into our master song list.
this.state.songs = _.reduce(albums, (songs, album) => {
// While doing so, we populate some other information into the songs as well.
_.each(album.songs, song => {
song.fmtLength = utils.secondsToHis(song.length);
// Keep a back reference to the album
song.album = album;
});
return songs.concat(album.songs);
}, []);
},
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/**
* Initializes the interaction (like/play count) information.
*
* @param {Array} interactions The array of interactions of the current user
*/
initInteractions(interactions) {
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favoriteStore.clear();
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_.each(interactions, interaction => {
var song = this.byId(interaction.song_id);
if (!song) {
return;
}
song.liked = interaction.liked;
song.playCount = interaction.play_count;
if (song.liked) {
favoriteStore.add(song);
}
});
},
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/**
* Get all songs.
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*
* @return {Array}
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*/
all() {
return this.state.songs;
},
/**
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* Get a song by its ID.
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*
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* @param {string} id
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*
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* @return {Object}
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*/
byId(id) {
return _.find(this.state.songs, { id });
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},
/**
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* Get songs by their IDs.
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*
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* @param {Array} ids
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*
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* @return {Array}
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*/
byIds(ids) {
return _.map(ids, id => this.byId(id));
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},
/**
* Increase a play count for a song.
*
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* @param {Object} song
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*/
registerPlay(song) {
// Increase playcount
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http.post('interaction/play', { id: song.id }, response => song.playCount = response.data.play_count);
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},
/**
* Get extra song information (lyrics, artist info, album info).
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*
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* @param {Object} song
* @param {?Function} cb
*
* @return {Object}
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*/
getInfo(song, cb = null) {
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if (!_.isUndefined(song.lyrics)) {
if (cb) {
cb();
}
return;
}
http.get(`${song.id}/info`, data => {
song.lyrics = data.lyrics;
// If the artist image is not in a nice form, don't use it.
if (data.artist_info && typeof data.artist_info.image !== 'string') {
data.artist_info.image = null;
}
song.album.artist.info = data.artist_info;
// Set the artist image on the client side to the retrieved image from server.
if (data.artist_info.image) {
song.album.artist.image = data.artist_info.image;
}
// Convert the duration into i:s
if (data.album_info && data.album_info.tracks) {
_.each(data.album_info.tracks, track => track.fmtLength = utils.secondsToHis(track.length));
}
// If the album cover is not in a nice form, don't use it.
if (data.album_info && typeof data.album_info.image !== 'string') {
data.album_info.image = null;
}
song.album.info = data.album_info;
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// Set the album on the client side to the retrieved image from server.
if (data.album_info.cover) {
song.album.cover = data.album_info.cover;
}
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if (cb) {
cb();
}
});
},
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/**
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* Scrobble a song (using Last.fm).
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*
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* @param {Object} song
* @param {?Function} cb
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*/
scrobble(song, cb = null) {
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if (!window.useLastfm || !userStore.current().preferences.lastfm_session_key) {
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return;
}
http.post(`${song.id}/scrobble/${song.playStartTime}`, () => {
if (cb) {
cb();
}
return;
});
},
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};