Add httpserver

lib/widgets/components/tutorials/step2.dart

@@ -9,17 +9,6 @@ class Step2 extends StatelessWidget {
   final TextEditingController _clientIdController = TextEditingController();
   final TextEditingController _clientSecretController = TextEditingController();
 
-  Widget buildFieldDescription(String field, String description) {
-    return Row(
-      mainAxisAlignment: MainAxisAlignment.center,
-      children: [
-        Text(field, style: const TextStyle(fontWeight: FontWeight.bold)),
-        const Text(' : '),
-        Text(description)
-      ],
-    );
-  }
-
   Widget buildContent(BuildContext context) {
     return Column(children: [
       const Padding(

lib/widgets/components/tutorials/step3.dart

@@ -0,0 +1,72 @@
+import 'dart:io';
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class Step3 extends StatelessWidget {
+  const Step3({Key? key}) : super(key: key);
+
+  Widget buildContent(BuildContext context, SharedPreferences prefs) {
+    return Column(children: [
+      const Padding(
+        padding: EdgeInsets.symmetric(vertical: 20),
+        child: Text('Étape 3:Authorisation de l\'application',
+            style: TextStyle(fontSize: 20)),
+      ),
+      const Text(
+          'Pour pouvoir utiliser l\'application, il faut récupérer les clefs associées à l\'application créée juste avant.'),
+    ]);
+  }
+
+  Future waitAuthorizationCallback() async {
+    var server = await HttpServer.bind(InternetAddress.loopbackIPv4, 1214);
+    var request = await server.first;
+
+    var uri = Uri.dataFromString(request.requestedUri.toString());
+    var query = uri.queryParameters;
+    var code = query['code'];
+
+    if (code != null) {
+      var prefs = await SharedPreferences.getInstance();
+      prefs.setString('code', code);
+    }
+
+    request.response
+      ..headers.contentType = ContentType.text
+      ..write('You can close tab now')
+      ..close();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    waitAuthorizationCallback();
+    return Column(
+      children: [
+        Expanded(
+            child: FutureBuilder(
+                future: SharedPreferences.getInstance(),
+                builder: (BuildContext context,
+                    AsyncSnapshot<SharedPreferences> snapshot) {
+                  if (snapshot.hasData) {
+                    final prefs = snapshot.data!;
+                    return buildContent(context, prefs);
+                  } else {
+                    return const Center(child: CircularProgressIndicator());
+                  }
+                })),
+        Padding(
+          padding: const EdgeInsets.symmetric(vertical: 20),
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.spaceAround,
+            children: [
+              TextButton(
+                  onPressed: () {}, child: const Text('Étape précédente')),
+              TextButton(onPressed: () {}, child: const Text('Étape suivante'))
+            ],
+          ),
+        )
+      ],
+    );
+  }
+}

lib/widgets/pages/tutorial.dart

@@ -1,5 +1,6 @@
 import 'package:desktopapp/widgets/components/tutorials/step1.dart';
 import 'package:desktopapp/widgets/components/tutorials/step2.dart';
+import 'package:desktopapp/widgets/components/tutorials/step3.dart';
 import 'package:flutter/material.dart';
 
 class TutorialPage extends StatelessWidget {
@@ -7,6 +8,6 @@ class TutorialPage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Scaffold(body: Step2());
+    return Scaffold(body: Step3());
   }
 }