koel/resources/assets/js/stores/album.js

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2015-12-13 04:42:28 +00:00
import _ from 'lodash';
import utils from '../services/utils';
import stub from '../stubs/album';
import songStore from './song';
export default {
stub,
artists: [],
state: {
albums: [stub],
},
/**
* Init the store.
*
* @param array artists The array of artists to extract album data from.
*/
init(artists) {
this.artists = artists;
// Traverse through the artists array and add their albums into our master album list.
this.state.albums = _.reduce(artists, (albums, artist) => {
// While we're doing so, for each album, we get its length
// and keep a back reference to the artist too.
_.each(artist.albums, album => {
album.artist = artist;
this.getLength(album);
});
return albums.concat(artist.albums);
}, []);
// Then we init the song store.
songStore.init(this.state.albums);
},
all() {
return this.state.albums;
},
/**
* Get the total length of an album by summing up its songs' duration.
* The length will also be converted into a H:i:s format and stored as fmtLength.
*
* @param object album
*
* @return string The H:i:s format of the album.
*/
getLength(album) {
album.length = _.reduce(album.songs, (length, song) => {
return length + song.length;
}, 0);
return (album.fmtLength = utils.secondsToHis(album.length));
},
};