Create account form is working

lib/ui/routes/create_account_route.dart

@@ -1,6 +1,10 @@
+import 'package:comunic/helpers/account_helper.dart';
 import 'package:comunic/models/config.dart';
+import 'package:comunic/models/new_account.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/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
 
@@ -34,6 +38,9 @@ class __CreateAccountRouteBodyState extends State<_CreateAccountRouteBody> {
   final _verifyPasswordController = TextEditingController();
   bool _acceptedTOS = false;
 
+  bool _isCreating = false;
+  CreateAccountResult _createAccountResult;
+
   bool _showErrors = false;
 
   bool get _isFirstNameValid => _firstNameController.text.length > 3;
@@ -55,12 +62,30 @@ class __CreateAccountRouteBodyState extends State<_CreateAccountRouteBody> {
       _isPasswordConfirmationValid &&
       _acceptedTOS;
 
+  String get errorMessage => _createAccountResult ==
+          CreateAccountResult.ERROR_EXISTING_EMAIL
+      ? tr("An account is already associated to this email address!")
+      : _createAccountResult == CreateAccountResult.ERROR_TOO_MANY_REQUESTS
+          ? tr(
+              "Too many accounts have been created from this IP address for now. Please try again later.")
+          : tr(
+              "An error occured while creating your account. Please try again.");
+
   @override
   Widget build(BuildContext context) {
+    if (_isCreating)
+      return Center(
+        child: CircularProgressIndicator(),
+      );
+
     return Padding(
       padding: const EdgeInsets.all(8.0),
       child: ListView(
         children: <Widget>[
+          _createAccountResult != null
+              ? buildErrorCard(errorMessage)
+              : Container(),
+
           // First name
           _InputEntry(
             controller: _firstNameController,
@@ -119,9 +144,9 @@ class __CreateAccountRouteBodyState extends State<_CreateAccountRouteBody> {
                 : null,
           ),
 
-          // TOSs
+          // TOS
           CheckboxListTile(
-            title: Text("I have read and accepted the Term Of Service."),
+            title: Text(tr("I have read and accepted the Terms Of Service.")),
             value: _acceptedTOS,
             onChanged: (b) {
               _acceptedTOS = b;
@@ -129,7 +154,7 @@ class __CreateAccountRouteBodyState extends State<_CreateAccountRouteBody> {
             },
             subtitle: _showErrors && !_acceptedTOS
                 ? Text(
-                    tr("You must accept the Term Of Service to continue."),
+                    tr("You must accept the Terms Of Service to continue."),
                     style: TextStyle(color: Colors.redAccent),
                   )
                 : null,
@@ -160,16 +185,73 @@ class __CreateAccountRouteBodyState extends State<_CreateAccountRouteBody> {
     });
   }
 
-  void _submitForm() {
+  void _submitForm() async {
     if (!_isFormValid) {
       _showErrors = true;
       _updateUI();
       return;
     }
+
+    setState(() {
+      _isCreating = true;
+    });
+
+    final result = await AccountHelper().createAccount(NewAccount(
+      firstName: _firstNameController.text,
+      lastName: _lastNameController.text,
+      email: _emailController.text,
+      password: _passwordController.text,
+    ));
+
+    setState(() {
+      _isCreating = false;
+    });
+
+    if (result != CreateAccountResult.SUCCESS) {
+      _createAccountResult = result;
+      _showCreateAccountError();
+      _updateUI();
+      return;
+    }
+
+    _accountCreated();
   }
 
   void _openTOS() {
-    launch(config().termOfServicesURL);
+    launch(config().termsOfServicesURL);
+  }
+
+  void _showCreateAccountError() async {
+    await showCupertinoDialog(
+      context: context,
+      builder: (c) => CupertinoAlertDialog(
+        title: Text(tr("Error while creating your account")),
+        content: Text(errorMessage),
+        actions: <Widget>[
+          CupertinoButton(
+            child: Text(tr("Ok").toUpperCase()),
+            onPressed: () => Navigator.of(context).pop(),
+          )
+        ],
+      ),
+    );
+  }
+
+  void _accountCreated() async {
+    await showCupertinoDialog(
+      context: context,
+      builder: (c) => CupertinoAlertDialog(
+        title: Text(tr("Account created")),
+        content: Text(tr(
+            "Your account has been successfully created. You can now login to start to use it.")),
+        actions: <Widget>[
+          CupertinoButton(
+              child: Text(tr("Login")), onPressed: () => Navigator.of(c).pop())
+        ],
+      ),
+    );
+
+    Navigator.of(context).pop();
   }
 }