koel/resources/assets/js/stores/artist.js

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import Vue from 'vue';
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import _ from 'lodash';
import config from '../config';
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import stub from '../stubs/artist';
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import albumStore from './album';
export default {
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stub,
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state: {
artists: [],
},
/**
* Init the store.
*
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* @param {Array.<Object>} artists The array of artists we got from the server.
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*/
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init(artists) {
this.state.artists = artists;
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// Traverse through artists array to get the cover and number of songs for each.
_.each(this.state.artists, artist => {
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this.setupArtist(artist);
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});
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albumStore.init(this.state.artists);
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},
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setupArtist(artist) {
this.getImage(artist);
Vue.set(artist, 'playCount', 0);
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Vue.set(artist, 'songCount', _.reduce(artist.albums, (count, album) => count + album.songs.length, 0));
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Vue.set(artist, 'info', null);
return artist;
},
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all() {
return this.state.artists;
},
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byId(id) {
return _.find(this.all(), 'id', id);
},
/**
* Appends a new artist into the current collection.
*
* @param {Object} artist
*/
append(artist) {
this.state.artists.push(this.setupArtist(artist));
},
addAlbumsIntoArtist(artist, albums) {
albums = [].concat(albums);
artist.albums = _.union(artist.albums ? artist.albums : [], albums);
albums.forEach(album => {
album.artist_id = artist.id;
album.artist = artist;
});
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artist.playCount = _.reduce(artist.albums, (count, album) => count + album.playCount, 0);
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},
/**
* Remove album(s) from an artist.
*
* @param {Object} artist
* @param {Array.<Object>|Object} albums
*/
removeAlbumsFromArtist(artist, albums) {
artist.albums = _.difference(artist.albums, [].concat(albums));
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artist.playCount = _.reduce(artist.albums, (count, album) => count + album.playCount, 0);
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},
/**
* Checks if an artist is empty.
*
* @param {Object} artist
*
* @return {boolean}
*/
isArtistEmpty(artist) {
return !artist.albums.length;
},
/**
* Remove artist(s) from the store.
*
* @param {Array.<Object>|Object} artists
*/
remove(artists) {
this.state.artists = _.difference(this.state.artists, [].concat(artists));
},
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/**
* Get all songs performed by an artist.
*
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* @param {Object} artist
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*
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* @return {Array.<Object>}
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*/
getSongsByArtist(artist) {
if (!artist.songs) {
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artist.songs = _.reduce(artist.albums, (songs, album) => songs.concat(album.songs), []);
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}
return artist.songs;
},
/**
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* Get the artist's image.
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*
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* @param {Object} artist
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*
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* @return {String}
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*/
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getImage(artist) {
// If the artist already has a proper image, just return it.
if (artist.image) {
return artist.image;
}
// Otherwise, we try to get an image from one of their albums.
artist.image = config.unknownCover;
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artist.albums.every(album => {
// If there's a "real" cover, use it.
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if (album.image !== config.unknownCover) {
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artist.image = album.cover;
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// I want to break free.
return false;
}
});
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return artist.image;
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},
/**
* Get top n most-played artists.
*
* @param {Number} n
*
* @return {Array.<Object>}
*/
getMostPlayed(n = 6) {
// Only non-unknown artists with actually play count are applicable.
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let applicable = _.filter(this.state.artists, artist => {
return artist.playCount && artist.id !== 1;
});
return _.take(_.sortByOrder(applicable, 'playCount', 'desc'), n);
},
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};