Check version compatibility on login - Closes #309

src/components/login/login.js

@@ -7,7 +7,7 @@ app.component('login', {
     /* eslint no-param-reassign: ["error", { "props": false }] */
 
     constructor($scope, $rootScope, $timeout, $document, $mdMedia,
-      $cookies, $location, Passphrase, $state, Account, Peers, dialog) {
+      $cookies, $location, Passphrase, $state, Account, Peers) {
       this.$scope = $scope;
       this.$rootScope = $rootScope;
       this.$timeout = $timeout;
@@ -18,7 +18,6 @@ app.component('login', {
       this.$state = $state;
       this.account = Account;
       this.peers = Peers;
-      this.dialog = dialog;
 
       this.Passphrase = Passphrase;
       this.generatingNewPassphrase = false;
@@ -85,8 +84,6 @@ app.component('login', {
             });
             this.$cookies.put('network', JSON.stringify(this.network));
             this.$state.go(this.$rootScope.landingUrl || 'main.transactions');
-          } else {
-            this.dialog.errorToast(`Failed to connect to node ${this.network.address}`);
           }
         });
       }

src/services/api/peers.js

@@ -8,7 +8,7 @@ import lisk from 'lisk-js';
  * @module app
  * @submodule Peers
  */
-app.factory('Peers', ($timeout, $cookies, $location, $q, $rootScope) => {
+app.factory('Peers', ($timeout, $cookies, $location, $q, $rootScope, dialog) => {
   /**
    * The Peers factory constructor class
    *
@@ -49,6 +49,7 @@ app.factory('Peers', ($timeout, $cookies, $location, $q, $rootScope) => {
      * @method setActive
      */
     setActive(network) {
+      this.network = network;
       let conf = { };
       if (network) {
         conf = network;
@@ -63,6 +64,7 @@ app.factory('Peers', ($timeout, $cookies, $location, $q, $rootScope) => {
       }
 
       this.active = lisk.api(conf);
+      this.wasOffline = false;
       return this.check();
     }
 
@@ -96,8 +98,27 @@ app.factory('Peers', ($timeout, $cookies, $location, $q, $rootScope) => {
      */
     check() {
       return this.sendRequestPromise('loader/status', {})
-        .then(() => this.online = true)
-        .catch(() => this.online = false);
+        .then(() => {
+          this.online = true;
+          if (this.wasOffline) {
+            dialog.successToast('Connection re-established');
+          }
+          this.wasOffline = false;
+        })
+        .catch((data) => {
+          this.online = false;
+          if (!this.wasOffline) {
+            const address = `${this.active.currentPeer}:${this.active.port}`;
+            let message = `Failed to connect to node ${address}. `;
+            if (data && data.error && data.error.code === 'EUNAVAILABLE') {
+              message = `Failed to connect: Node ${address} is not active`;
+            } else if (!(data && data.error && data.error.code)) {
+              message += ' Make sure that you are using the latest version of Lisk Nano.';
+            }
+            dialog.errorToast(message);
+          }
+          this.wasOffline = true;
+        });
     }
   }
 

test/components/login/login.spec.js

@@ -158,15 +158,6 @@ describe('Login controller', () => {
       $scope.$apply();
       expect(spy).to.have.been.calledWith();
     });
-
-    it('shows error toast if peers.setActive sets peers.online = false', () => {
-      const spy = sinon.spy(controller.dialog, 'errorToast');
-      controller.peers.online = false;
-      controller.passConfirmSubmit();
-      deferred.resolve();
-      $scope.$apply();
-      expect(spy).to.have.been.calledWith(`Failed to connect to node ${controller.network.address}`);
-    });
   });
 
   describe('devTestAccount()', () => {

test/services/api/peers.spec.js

@@ -9,13 +9,15 @@ describe('Factory: Peers', () => {
   let Peers;
   let $q;
   let $rootScope;
+  let dialog;
 
   beforeEach(angular.mock.module('app'));
 
-  beforeEach(inject((_Peers_, _$q_, _$rootScope_) => {
+  beforeEach(inject((_Peers_, _$q_, _$rootScope_, _dialog_) => {
     Peers = _Peers_;
     $q = _$q_;
     $rootScope = _$rootScope_;
+    dialog = _dialog_;
   }));
 
   describe('setActive(account)', () => {
@@ -32,7 +34,7 @@ describe('Factory: Peers', () => {
     });
   });
 
-  describe('check()', () => {
+  describe('check(notifyUser)', () => {
     let deffered;
     let mock;
 
@@ -61,5 +63,13 @@ describe('Factory: Peers', () => {
       $rootScope.$apply();
       expect(Peers.online).to.equal(false);
     });
+
+    it('shows error toast if notifyUser is true', () => {
+      const spy = sinon.spy(dialog, 'errorToast');
+      Peers.check(true);
+      deffered.reject();
+      $rootScope.$apply();
+      expect(spy).to.have.been.calledWith();
+    });
   });
 });