Refactor and modularize analytics on the client

web/react/stores/analytics_store.jsx

@@ -0,0 +1,85 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
+import EventEmitter from 'events';
+
+import Constants from '../utils/constants.jsx';
+const ActionTypes = Constants.ActionTypes;
+
+const CHANGE_EVENT = 'change';
+
+class AnalyticsStoreClass extends EventEmitter {
+    constructor() {
+        super();
+        this.systemStats = {};
+        this.teamStats = {};
+    }
+
+    emitChange() {
+        this.emit(CHANGE_EVENT);
+    }
+
+    addChangeListener(callback) {
+        this.on(CHANGE_EVENT, callback);
+    }
+
+    removeChangeListener(callback) {
+        this.removeListener(CHANGE_EVENT, callback);
+    }
+
+    getAllSystem() {
+        return JSON.parse(JSON.stringify(this.systemStats));
+    }
+
+    getAllTeam(id) {
+        if (id in this.teamStats) {
+            return JSON.parse(JSON.stringify(this.teamStats[id]));
+        }
+
+        return {};
+    }
+
+    storeSystemStats(newStats) {
+        for (const stat in newStats) {
+            if (!newStats.hasOwnProperty(stat)) {
+                continue;
+            }
+            this.systemStats[stat] = newStats[stat];
+        }
+    }
+
+    storeTeamStats(id, newStats) {
+        if (!(id in this.teamStats)) {
+            this.teamStats[id] = {};
+        }
+
+        for (const stat in newStats) {
+            if (!newStats.hasOwnProperty(stat)) {
+                continue;
+            }
+            this.teamStats[id][stat] = newStats[stat];
+        }
+    }
+
+}
+
+var AnalyticsStore = new AnalyticsStoreClass();
+
+AnalyticsStore.dispatchToken = AppDispatcher.register((payload) => {
+    var action = payload.action;
+
+    switch (action.type) {
+    case ActionTypes.RECEIVED_ANALYTICS:
+        if (action.teamId == null) {
+            AnalyticsStore.storeSystemStats(action.stats);
+        } else {
+            AnalyticsStore.storeTeamStats(action.teamId, action.stats);
+        }
+        AnalyticsStore.emitChange();
+        break;
+    default:
+    }
+});
+
+export default AnalyticsStore;