Merge pull request #1316 from nextcloud/refactor/vue-dead-sync-service

Remove dead sync service

src/service/backgroundsyncservice.js

-/**
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- *
- * Mail
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-define(function(require) {
-	'use strict';
-
-	var Radio = require('radio');
-	var _timer = null;
-	var _accounts = null;
-
-	Radio.sync.on('start', startBackgroundSync);
-
-	var SYNC_INTERVAL = 30 * 1000; // twice a minute
-
-	function startBackgroundSync(accounts) {
-		_accounts = accounts;
-		clearTimeout(_timer);
-		triggerNextSync();
-	}
-
-	function triggerNextSync() {
-		_timer = setTimeout(function() {
-			var account;
-			if (require('state').accounts.length === 0) {
-				// Nothing to do right now, just re-trigger the sync event
-				triggerNextSync();
-			} else if (require('state').accounts.length === 1) {
-				account = _accounts.first();
-			} else {
-				account = _accounts.get(-1);
-			}
-			sync(account);
-		}, SYNC_INTERVAL);
-	}
-
-	/**
-	 * @param {Account} account
-	 * @returns {Promise}
-	 */
-	function sync(account) {
-		return Radio.sync.request('sync:folder', account.folders.first())
-			.then(function(newMessages) {
-				Radio.ui.trigger('notification:mail:show', newMessages);
-			})
-			.catch(function(e) {
-				console.error(e);
-			})
-			.then(triggerNextSync);
-	}
-
-	return {
-		sync: sync
-	};
-});