86 lines
2.8 KiB
JavaScript
86 lines
2.8 KiB
JavaScript
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self.importScripts('jsmediatags.min.js');
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class Tagger {
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constructor(worker) {
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this.db = new Database("SongLib", 1);
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}
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static prepareName(data) {
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let name = data.name || '';
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return name.replace(/[^\w\s]/gi, '').split(" ").join("")
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}
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init() {
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eventHandler.addEvent('getData', this.getData.bind(this));
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eventHandler.addEvent('removeData', this.getData.bind(this));
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eventHandler.addEvent('setData', this.getData.bind(this));
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eventHandler.addEvent('dbReady-SongLib', this.ready.bind(this));
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eventHandler.addEvent('dbUpgrade-SongLib', this.upgrade.bind(this));
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}
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async getData(data) {
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let key = Tagger.prepareName(data),
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newData = await this.db.get(key, 'songs'),
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handlerName = data.force ? 'id3-request-force' : 'id3-request';
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if (newData) {
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newData['index'] = data['index'];
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eventHandler.sendData(handlerName, 'success', newData);
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} else {
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this.parseData(data, key).then(r => {
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r['index'] = data['index'];
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eventHandler.sendData(handlerName, 'success', r);
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});
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eventHandler.sendData(handlerName, 'waiting', data);
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}
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}
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async removeData(data) {
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let key = Tagger.prepareName(data),
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newData = await this.db.remove(key, 'songs');
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eventHandler.sendData('id3-remove', 'success', newData);
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}
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async setData(data, key) {
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let newData = await this.db.set(key, data, 'songs');
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eventHandler.sendData('id3-set', 'success', newData);
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}
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ready(data) {
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console.log("[ID3] > Song Database Ready");
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eventHandler.sendData('id3-ready', "startup", "");
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}
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upgrade(data) {
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let db = data.result,
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songs = db.createObjectStore("songs", {keyPath: 'key'});
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songs.createIndex("name", "name", {unique: false});
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}
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//if not found in key-value storage read it! this take some time so this is async!
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async parseData(data, key) {
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let tag = await new Promise((resolve, reject) => {
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new jsmediatags.Reader(data.file)
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.read({
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onSuccess: (tag) => {
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resolve(tag);
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},
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onError: (error) => {
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console.log(`[ID3] > Error Parsing Data!`);
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resolve({
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tags: {}
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});
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}
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});
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})
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let tags = tag.tags,
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values = {
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title: tags.title || data.name,
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artist: tags.artist || 'VA',
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genre: tags.genre || 'Unknown',
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year: tags.year || 1970,
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key: key
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};
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await this.setData(values, key);
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return values;
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}
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}
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