sync domains

src/services/settingsService.js

@@ -0,0 +1,100 @@
+function SettingsService(userService) {
+    this.userService = userService;
+    this.settingsCache = null;
+
+    initSettingsService();
+};
+
+function initSettingsService() {
+    SettingsService.prototype.clearCache = function () {
+        this.settingsCache = null
+    };
+
+    SettingsService.prototype.getSettings = function (callback) {
+        if (!callback || typeof callback !== 'function') {
+            throw 'callback function required';
+        }
+
+        var self = this;
+
+        if (self.settingsCache) {
+            callback(self.settingsCache);
+            return;
+        }
+
+        this.userService.getUserId(function (userId) {
+            var key = 'settings_' + userId;
+            chrome.storage.local.get(key, function (obj) {
+                self.settingsCache = obj[key];
+                callback(self.settingsCache);
+            });
+        });
+    };
+
+    SettingsService.prototype.getEquivalentDomains = function (callback) {
+        getSettingsKey(this, 'equivalentDomains', callback);
+    };
+
+    function getSettingsKey(self, key, callback) {
+        if (!callback || typeof callback !== 'function') {
+            throw 'callback function required';
+        }
+
+        self.getSettings(function (settings) {
+            if (settings && settings[key]) {
+                callback(settings[key]);
+                return;
+            }
+
+            callback(null);
+        });
+    }
+
+    SettingsService.prototype.setEquivalentDomains = function (equivalentDomains, callback) {
+        setSettingsKey(this, 'equivalentDomains', equivalentDomains, callback);
+    };
+
+    function setSettingsKey(self, key, value, callback) {
+        if (!callback || typeof callback !== 'function') {
+            throw 'callback function required';
+        }
+
+        self.userService.getUserId(function (userId) {
+            var settingsKey = 'settings_' + userId;
+
+            self.getSettings(function (settings) {
+                if (!settings) {
+                    settings = {};
+                }
+                settings[key] = value;
+
+                var obj = {};
+                obj[settingsKey] = settings;
+
+                chrome.storage.local.set(obj, function () {
+                    self.settingsCache = settings;
+                    callback();
+                });
+            });
+        });
+    }
+
+    SettingsService.prototype.clear = function (callback) {
+        if (!callback || typeof callback !== 'function') {
+            throw 'callback function required';
+        }
+
+        var self = this;
+
+        this.userService.getUserId(function (userId) {
+            chrome.storage.local.remove('settings_' + userId, function () {
+                self.settingsCache = null;
+                callback();
+            });
+        });
+    };
+
+    function handleError(error, deferred) {
+        deferred.reject(error);
+    }
+};