// 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';
import 'package:intl/intl.dart';
import 'package:intl/date_symbol_data_local.dart';

import '../variable/globals.dart' as globals;

import '../classes/events.dart';

void main() {
  initializeDateFormatting("fr_FR", null).then((_) => (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 ItemMenu(title: 'Flutter Demo Home Page'),
    );
  }
}

class ItemMenu extends StatefulWidget {
  const ItemMenu({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<ItemMenu> createState() => _ItemMenuState();
}

class _ItemMenuState extends State<ItemMenu> with ShowErrorDialog {
  String listUser = "";
  String eventName = "";
  String eventStartDate = "";
  String organizers = "";

  Events? events;
  @override
  void initState() {
    super.initState();

    _getEventInfos();
  }

  Future<void> _getEventInfos() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    var accessToken = prefs.getString("access_token") ?? "";
    String formerName = "";
    String formerDate = "";
    String formerOrga = "";

    if (accessToken.isNotEmpty) {
      var urlGet = Uri.parse("${globals.api}/events/${widget.title}");

      var responseGet = await http.get(urlGet,
          headers: {HttpHeaders.cookieHeader: 'access_token=${accessToken}'});
      stderr.writeln('Response Get status: ${responseGet.statusCode}');
      if (responseGet.statusCode == 200) {
        stderr.writeln('Username : ${responseGet.body}');
        var events = jsonDecode(utf8.decode(responseGet.bodyBytes));
        formerName = events["name"];
        final startDate = DateTime.parse(events["start_date"]);
        final date = DateFormat.yMd().format(startDate);
        final time = DateFormat.Hm().format(startDate);

        final endDate = DateTime.parse(events["end_date"]);
        final dateE = DateFormat.yMd().format(endDate);
        final timeE = DateFormat.Hm().format(endDate);
        formerDate = "${date} ${time} à ${dateE} ${timeE}";
        if (events["organizers"].length > 1) {
          for (var orga in events["organizers"]) {
            formerOrga = "${formerOrga}, ${orga}";
          }
        } else {
          formerOrga = "${events['organizers'][0]}";
        }
      } 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 = "Vous n'avez pas l'autorisation de faire cette action";
            }
            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.
      eventName = formerName;
      eventStartDate = formerDate;
      organizers = formerOrga;
    });
  }

  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("${eventName}"),
          backgroundColor: Colors.blue,
          foregroundColor: Colors.white,
        ),
        body: SingleChildScrollView(
            child: Column(
          children: <Widget>[
            Padding(
              padding: const EdgeInsets.only(top: 60.0),
              child: Center(
                child: Container(
                    height: 250, child: Image.asset('images/flutter.png')),
              ),
            ),
            Row(
              children: [
                Icon(Icons.event),
                Text("Date : ${eventStartDate}",
                    style: TextStyle(fontSize: 15.0))
              ],
            ),
            Row(children: [
              Icon(Icons.group),
              Text("Organisateurs : ${organizers}",
                  style: TextStyle(fontSize: 15.0))
            ]),
            Row(children: [
              Icon(Icons.description),
              Text("Description : ", style: TextStyle(fontSize: 15.0))
            ])
          ],
        )));
  }
}