Can sign in user

lib/ui/routes/home_route.dart

@@ -0,0 +1,12 @@
+import 'package:flutter/material.dart';
+
+/// Main route of the application
+///
+/// @author Pierre HUBERT
+
+class HomeRoute extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Text("Home route");
+  }
+}

lib/ui/routes/login_route.dart

@@ -1,5 +1,9 @@
+import 'package:comunic/helpers/account_helper.dart';
+import 'package:comunic/models/authentication_details.dart';
+import 'package:comunic/ui/routes/home_route.dart';
 import 'package:comunic/utils/input_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
+import 'package:comunic/utils/ui_utils.dart';
 import 'package:flutter/material.dart';
 
 /// Login route
@@ -14,6 +18,7 @@ class LoginRoute extends StatefulWidget {
 class _LoginRouteState extends State<LoginRoute> {
   String _currEmail;
   String _currPassword;
+  AuthResult _authResult;
 
   @override
   void initState() {
@@ -35,26 +40,51 @@ class _LoginRouteState extends State<LoginRoute> {
   }
 
   /// Call this whenever the user request to perform login
-  void _submitForm() {
+  Future<void> _submitForm(BuildContext context) async {
+    final loginResult = await AccountHelper().signIn(
+        AuthenticationDetails(email: _currEmail, password: _currPassword));
 
+    if (loginResult == AuthResult.SUCCESS)
+      Navigator.pushReplacement(
+          context, MaterialPageRoute(builder: (b) => HomeRoute()));
+    else
+      setState(() {
+        _authResult = loginResult;
+      });
+  }
+
+  // Build error card
+  Widget _buildErrorCard() {
+    if (_authResult == null)
+      return null;
+
+    //Determine the right message
+    final message = (_authResult == AuthResult.INVALID_CREDENTIALS ? tr(
+        "Invalid credentials!") : (_authResult == AuthResult.TOO_MANY_ATTEMPTS
+        ? tr("Too many unsuccessfull login attempts! Please try again later...")
+        : tr("A network error occured!")));
+
+    return buildErrorCard(message);
   }
 
   /// Build login form
-  Widget _buildLoginForm(){
+  Widget _buildLoginForm() {
     return SingleChildScrollView(
       child: Padding(
         padding: const EdgeInsets.all(8.0),
         child: Column(
           children: <Widget>[
             Text(tr("Please sign into your Comunic account: ")),
+            Container(
+              child: _buildErrorCard(),
+            ),
             //Email address
             TextField(
               keyboardType: TextInputType.emailAddress,
               decoration: InputDecoration(
                   labelText: tr("Email address"),
                   alignLabelWithHint: true,
-                  errorText:
-                  _currEmail.length > 0 && !validateEmail(_currEmail)
+                  errorText: _currEmail.length > 0 && !validateEmail(_currEmail)
                       ? tr("Invalid email address!")
                       : null),
               onChanged: _emailChanged,
@@ -72,7 +102,9 @@ class _LoginRouteState extends State<LoginRoute> {
 
             RaisedButton(
               child: Text(tr("Sign in")),
-              onPressed: !validateEmail(_currEmail) || _currPassword.length < 3 ? null : _submitForm,
+              onPressed: !validateEmail(_currEmail) || _currPassword.length < 3
+                  ? null
+                  : () => _submitForm(context),
             )
           ],
         ),
@@ -83,10 +115,9 @@ class _LoginRouteState extends State<LoginRoute> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(
-        title: Text("Comunic"),
-      ),
-      body: _buildLoginForm()
-    );
+        appBar: AppBar(
+          title: Text("Comunic"),
+        ),
+        body: _buildLoginForm());
   }
 }