mirror of https://github.com/moparisthebest/mail
132 lines
4.0 KiB
JavaScript
132 lines
4.0 KiB
JavaScript
'use strict';
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var ngModule = angular.module('woUtil');
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ngModule.service('updateHandler', ['deviceStorage', 'deviceStorage', 'auth', UpdateHandler]);
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module.exports = UpdateHandler;
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var axe = require('axe-logger'),
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cfg = require('../../app-config').config,
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updateV1 = require('./update-v1'),
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updateV2 = require('./update-v2'),
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updateV3 = require('./update-v3'),
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updateV4 = require('./update-v4'),
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updateV5 = require('./update-v5');
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/**
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* Handles database migration
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*/
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function UpdateHandler(appConfigStorage, userStorage, auth) {
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this._appConfigStorage = appConfigStorage;
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this._userStorage = userStorage;
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this._updateScripts = [updateV1, updateV2, updateV3, updateV4, updateV5];
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this._auth = auth;
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}
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/**
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* Executes all the necessary updates
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* @param {Function} callback(error) Invoked when all the database updates were executed, or if an error occurred
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*/
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UpdateHandler.prototype.update = function(callback) {
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var self = this,
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currentVersion = 0,
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targetVersion = cfg.dbVersion,
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versionDbType = 'dbVersion';
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self._appConfigStorage.listItems(versionDbType, 0, null, function(err, items) {
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if (err) {
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callback(err);
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return;
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}
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// parse the database version number
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if (items && items.length > 0) {
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currentVersion = parseInt(items[0], 10);
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}
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self._applyUpdate({
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currentVersion: currentVersion,
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targetVersion: targetVersion
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}, callback);
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});
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};
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/**
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* Schedules necessary updates and executes thom in order
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*/
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UpdateHandler.prototype._applyUpdate = function(options, callback) {
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var self = this,
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scriptOptions,
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queue = [];
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if (options.currentVersion >= options.targetVersion) {
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// the current database version is up to date
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callback();
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return;
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}
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scriptOptions = {
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appConfigStorage: self._appConfigStorage,
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userStorage: self._userStorage,
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auth: self._auth
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};
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// add all the necessary database updates to the queue
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for (var i = options.currentVersion; i < options.targetVersion; i++) {
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queue.push(self._updateScripts[i]);
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}
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// takes the next update from the queue and executes it
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function executeNextUpdate(err) {
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if (err) {
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callback(err);
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return;
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}
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if (queue.length < 1) {
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// we're done
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callback();
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return;
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}
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// process next update
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var script = queue.shift();
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script(scriptOptions, executeNextUpdate);
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}
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executeNextUpdate();
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};
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/**
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* Check application version and update correspondingly
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*/
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UpdateHandler.prototype.checkForUpdate = function(dialog) {
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// Chrome Packaged App
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if (typeof window.chrome !== 'undefined' && chrome.runtime && chrome.runtime.onUpdateAvailable) {
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// check for Chrome app update and restart
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chrome.runtime.onUpdateAvailable.addListener(function(details) {
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axe.debug('New Chrome App update... requesting reload.');
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// Chrome downloaded a new app version
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dialog({
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title: 'Update available',
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message: 'A new version ' + details.version + ' of the app is available. Restart the app to update?',
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positiveBtnStr: 'Restart',
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negativeBtnStr: 'Not now',
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showNegativeBtn: true,
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callback: function(agree) {
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if (agree) {
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chrome.runtime.reload();
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}
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}
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});
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});
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chrome.runtime.requestUpdateCheck(function(status) {
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if (status === "update_found") {
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axe.debug("Update pending...");
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} else if (status === "no_update") {
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axe.debug("No update found.");
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} else if (status === "throttled") {
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axe.debug("Checking updates too frequently.");
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}
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});
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}
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}; |