From 0beaf5331d204d4386e719b5340b2302b1b56960 Mon Sep 17 00:00:00 2001
From: Jean-Richard Lai <jrichardlai@gmail.com>
Date: Tue, 5 Jan 2016 20:56:22 -0800
Subject: [PATCH] Add DebugStore

---
 App/Constants/AppConstants.js |  1 +
 App/Root.js                   | 39 +++++++++++++++++----
 App/Stores/DebugStore.js      | 66 +++++++++++++++++++++++++++++++++++
 3 files changed, 99 insertions(+), 7 deletions(-)
 create mode 100644 App/Stores/DebugStore.js

diff --git a/App/Constants/AppConstants.js b/App/Constants/AppConstants.js
index 2482a78f..fab9771e 100644
--- a/App/Constants/AppConstants.js
+++ b/App/Constants/AppConstants.js
@@ -13,4 +13,5 @@ module.exports = keyMirror({
   POST_ADDED: null,
   FOLLOW_LIST_UPDATED: null,
   TEST_COMPONENT_ROUTE: null,
+  DEBUG_CURRENT_ROUTE_PATH_KEY: null,
 });
diff --git a/App/Root.js b/App/Root.js
index 15650e4c..35a5c37e 100644
--- a/App/Root.js
+++ b/App/Root.js
@@ -6,6 +6,7 @@ var {
 var assign = require('object-assign');
 
 var Routes     = require('./Navigation/Routes');
+
 var Launch     = require('./Root/Launch');
 var LoggedOut  = require('./Root/LoggedOut');
 var LoggedIn   = require('./Root/LoggedIn');
@@ -15,6 +16,8 @@ var TestRunner = require('./Root/TestRunner');
 var AppActions         = require('./Actions/AppActions');
 var CurrentUserStore   = require('./Stores/CurrentUserStore');
 var EnvironmentStore   = require('./Stores/EnvironmentStore');
+var DebugStore         = require('./Stores/DebugStore');
+
 var DispatcherListener = require('./Mixins/DispatcherListener');
 
 function getUserState() {
@@ -29,26 +32,33 @@ function getEnvironmentState() {
   };
 };
 
+function getDebugState() {
+  return { savedPath: DebugStore.get().currentRoutePath };
+}
+
 var Root = React.createClass({
   mixins: [DispatcherListener],
 
   getInitialState: function() {
     return assign({},
                 getUserState(),
-                getEnvironmentState()
+                getEnvironmentState(),
+                getDebugState()
     );
   },
 
   onUserChange: function() {
-    var state = getUserState();
-    state.routeStack = Routes.parse(null, state.user.isLoggedIn(), true);
-    this.setState(state);
+    this.setState(getUserState());
   },
 
   onEnvChange: function() {
     this.setState(getEnvironmentState());
   },
 
+  onDebugChange: function() {
+    this.setState(getDebugState());
+  },
+
   dispatchAction: function(action) {
     Launcher.launch(this, action);
   },
@@ -56,20 +66,35 @@ var Root = React.createClass({
   componentDidMount: function() {
     CurrentUserStore.addChangeListener(this.onUserChange);
     EnvironmentStore.addChangeListener(this.onEnvChange);
+    DebugStore.addChangeListener(this.onDebugChange);
     AppActions.appLaunched();
   },
 
   componentWillUnmount: function() {
+    DebugStore.removeChangeListener(this.onDebugChange);
     EnvironmentStore.removeChangeListener(this.onEnvChange);
     CurrentUserStore.removeChangeListener(this.onUserChange);
   },
 
+  getSavedPath: function() {
+    if (!this.state.environment)                { return null; }
+    if (!this.state.environment.data.simulator) { return null; }
+
+    return this.state.savedPath;
+  },
+
   renderContent: function() {
     if (this.state.routeUnderTest) return null;
-    
-    var routeStack = this.state.routeStack;
+
+    var routeStack = Routes.parse(this.getSavedPath(), this.state.user.isLoggedIn(), true);
+
     if(this.state.user.isLoggedIn()) {
-      return(<LoggedIn ref="current" routeStack={routeStack} />);
+      return (
+        <LoggedIn
+          ref="current"
+          routeStack={routeStack}
+        />
+      );
     }
     else {
       return(<LoggedOut ref="current" routeStack={routeStack} />);
diff --git a/App/Stores/DebugStore.js b/App/Stores/DebugStore.js
new file mode 100644
index 00000000..4863d992
--- /dev/null
+++ b/App/Stores/DebugStore.js
@@ -0,0 +1,66 @@
+import React from 'react-native';
+import { EventEmitter } from 'events';
+
+import Dispatcher    from '../Dispatcher';
+import AppConstants  from '../Constants/AppConstants';
+import LocalKeyStore from '../Stores/LocalKeyStore';
+
+const EnvironmentManager = React.NativeModules.EnvironmentManager;
+
+const CHANGE_EVENT                 = 'change';
+const DEBUG_CURRENT_ROUTE_PATH_KEY = AppConstants.DEBUG_CURRENT_ROUTE_PATH_KEY;
+
+var _values = {};
+
+function setCurrentRoutePath(routePath) {
+  _values.currentRoutePath = routePath;
+}
+
+function resetData() {
+  _values = {};
+}
+
+var SingletonStore = Object.assign({}, EventEmitter.prototype, {
+  get() {
+    return _values;
+  },
+
+  emitChange() {
+    this.emit(CHANGE_EVENT);
+  },
+
+  addChangeListener(callback) {
+    this.on(CHANGE_EVENT, callback);
+  },
+
+  removeChangeListener(callback) {
+    this.removeListener(CHANGE_EVENT, callback);
+  }
+});
+
+Dispatcher.register(function(action) {
+  switch (action.actionType) {
+    case AppConstants.APP_LAUNCHED:
+      LocalKeyStore.getKey(DEBUG_CURRENT_ROUTE_PATH_KEY, (error, routePath) => {
+        setCurrentRoutePath(routePath);
+        SingletonStore.emitChange();
+      });
+      break;
+    case AppConstants.LAUNCH_ROUTE_PATH:
+      if (action.routePath) {
+        LocalKeyStore.setKey(DEBUG_CURRENT_ROUTE_PATH_KEY, action.routePath);
+        setCurrentRoutePath(action.routePath);
+        SingletonStore.emitChange();
+      }
+      break;
+    case AppConstants.LOGOUT_REQUESTED:
+      resetData();
+      LocalKeyStore.setKey(DEBUG_CURRENT_ROUTE_PATH_KEY, '');
+      SingletonStore.emitChange();
+      break;
+    default:
+      // no op
+  }
+});
+
+export default SingletonStore;