Fixes #391 offline with service worker not working on new window/tab

.gitignore

@@ -1,4 +1,5 @@
 # See http://help.github.com/ignore-files/ for more about ignoring files.
+/.idea
 
 # compiled output
 /dist
@@ -29,3 +30,5 @@ server/config.js
 newrelic_agent.log
 
 newrelic.js
+
+/async-disk-cache

app/services/config.js

@@ -15,7 +15,13 @@ export default Ember.Service.extend({
       this.set('configDB', db);
       this.setCurrentUser();
       return db;
-    }).then(replicateConfigDB).then(loadConfig);
+    })
+        .then(replicateConfigDB)
+        .catch((err) => {
+          console.log('replicate db error', err);
+        })
+        .finally(loadConfig)
+        .catch((err)=>console.log(err));
   },
 
   createDB() {
@@ -51,13 +57,13 @@ export default Ember.Service.extend({
           console.log('Could not get configDB configs:', err);
           reject(err);
         }
-        const config = {};
+        const configObj = {};
         for (var i = 0; i < response.rows.length; i++) {
           if (!response.rows[i].error && response.rows[i].doc) {
-            config[response.rows[i].id] = response.rows[i].doc.value;
+            configObj[response.rows[i].id] = response.rows[i].doc.value;
           }
         }
-        resolve(config);
+        resolve(configObj);
       });
     }, 'getting configuration from the database');
   },

app/services/database.js

@@ -21,7 +21,7 @@ export default Ember.Service.extend(PouchAdapterUtils, {
   createDB(configs) {
     return new Ember.RSVP.Promise((resolve, reject) => {
       let pouchOptions = {};
-      if (configs.config_use_google_auth) {
+      if (configs && configs.config_use_google_auth) {
         pouchOptions.ajax = {
           timeout: 30000
         };
@@ -43,15 +43,13 @@ export default Ember.Service.extend(PouchAdapterUtils, {
         }
       }
       const url = `${document.location.protocol}//${document.location.host}/db/main`;
-      new PouchDB(url, pouchOptions, (err, db) => {
-        if (err) {
-          reject(err);
-          return;
-        }
-        createPouchViews(db);
-        resolve(db);
-      });
-    });
+
+      this._createRemoteDB(url, pouchOptions)
+          .catch(() => this._createLocalDB('localMainDB', pouchOptions))
+          .then((db) => resolve(db))
+          .catch((err) => reject(err));
+
+    }, 'initialize application db');
   },
 
   queryMainDB(queryParams, mapReduce) {
@@ -154,5 +152,36 @@ export default Ember.Service.extend(PouchAdapterUtils, {
       });
     }
     return mappedRows;
+  },
+
+  _createRemoteDB(remoteUrl, pouchOptions) {
+    return new Ember.RSVP.Promise(function(resolve, reject) {
+      new PouchDB(remoteUrl, pouchOptions, (errRemote, remoteDB) => {
+        if (errRemote) {
+          reject(errRemote);
+          return;
+        }
+
+        // remote db lazy created, check if db created correctly
+        remoteDB.info().then(() => {
+          createPouchViews(remoteDB);
+          resolve(remoteDB);
+        }).catch((err) => reject(err));
+      });
+    });
+  },
+
+  _createLocalDB(localDBName, pouchOptions) {
+    return new Ember.RSVP.Promise(function(resolve, reject) {
+      new PouchDB(localDBName, pouchOptions, (errLocal, localDB) => {
+        if (errLocal) {
+          reject(errLocal);
+          return;
+        }
+
+        createPouchViews(localDB);
+        resolve(localDB);
+      });
+    });
   }
 });

app/services/filesystem.js

@@ -191,7 +191,7 @@ export default Ember.Service.extend({
   },
 
   /**
-   * Property to to determine if file system API is available.
+   * Property to determine if file system API is available.
    */
   isFileSystemEnabled: function() {
     var filer = this.get('filer');

config/environment.js

@@ -62,7 +62,7 @@ module.exports = function(environment) {
   if (environment === 'production') {
     ENV.serviceWorker.debug = false;
   }
-
+  
   return ENV;
 };