// ignore_for_file: unnecessary_brace_in_string_interps

import 'dart:io';
import 'dart:convert';

import 'package:covas_mobile/classes/alert.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:shared_preferences/shared_preferences.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> with ShowErrorDialog {
  String listUser = "";

  Future<void> _incrementCounter() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    var user = prefs.getString("user") ?? "";
    var jwt = prefs.getString("jwt") ?? "";
    String former = "";

    if ((user.isNotEmpty) && (jwt.isNotEmpty)) {
      var urlGet = Uri.parse("http://localhost:8083/api/users");

      var responseGet = await http
          .get(urlGet, headers: {HttpHeaders.cookieHeader: '${jwt}; ${user}'});

      stderr.writeln('Response Get status: ${responseGet.statusCode}');
      if (responseGet.statusCode == 200) {
        stderr.writeln('Response Get body: ${responseGet.body}');
        var json = jsonDecode(responseGet.body);
        for (var user in json) {
          former = "$former\n ${user['name']}";
        }
      } else {
        var text = "";
        switch (responseGet.statusCode) {
          case 400:
            {
              text = "Requête mal construite";
            }
            break;
          case 406:
            {
              text = "Mot de passe incorrect";
            }
            break;
          case 404:
            {
              text = "Utilisateur inconnu";
            }
            break;
          case 403:
            {
              text = "Utilisateur desactive";
            }
            break;
          case 410:
            {
              text = "Token invalide";
            }
            break;
          case 500:
            {
              text = "Probleme interne du serveur";
            }
            break;
          default:
            {
              text = "Probleme d'authentification inconnu";
            }
            break;
        }
        showErrorDialog(context, text);
      }
    } else {
      showErrorDialog(context, "Cache invalide");
    }

    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      listUser = former;
    });
  }

  final _formKey = GlobalKey<FormState>();

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also a layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Invoke "debug painting" (press "p" in the console, choose the
          // "Toggle Debug Paint" action from the Flutter Inspector in Android
          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
          // to see the wireframe for each widget.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Form(
              key: _formKey,
              child: Column(
                children: <Widget>[
                  // Add TextFormFields and ElevatedButton here.
                  TextFormField(
                    // The validator receives the text that the user has entered.
                    validator: (value) {
                      if (value == null || value.isEmpty) {
                        return 'Please enter some text';
                      }
                      return null;
                    },
                  ),
                ],
              ),
            ),
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$listUser',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}