mobile-flutter/covas_mobile/lib/pages/UpdateEventImage.dart

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

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

//import 'MyHomePage.dart';
import 'ListItemMenu.dart';

import '../classes/alert.dart';
import '../classes/eventAdded.dart';

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

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

class MyApp extends StatelessWidget {
  Map<String, dynamic> events = {};
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: UpdateeventImage(events: events),
    );
  }
}

class UpdateeventImage extends StatefulWidget {
  const UpdateeventImage({Key? key, required this.events}) : super(key: key);
  final Map<String, dynamic> events;

  @override
  _UpdateeventImageState createState() => _UpdateeventImageState();
}

class _UpdateeventImageState extends State<UpdateeventImage>
    with ShowErrorDialog, ShowEventDialog {
  TextEditingController inputName = TextEditingController();
  TextEditingController inputPlace = TextEditingController();
  TextEditingController inputDate = TextEditingController();

  Future<void> _updateEvent(BuildContext context) async {
    var url = Uri.parse("${globals.api}/token");
    var name = inputName.text;
    var place = inputPlace.text;
    SharedPreferences prefs = await SharedPreferences.getInstance();
    var accessToken = prefs.getString("access_token") ?? "";
    List<String> send = ["toto"];
    if (accessToken.isNotEmpty) {
      try {
        //String credentials = "${pseudo}:${password}";
        //Codec<String, String> stringToBase64 = utf8.fuse(base64);
        //String encoded = stringToBase64.encode(credentials);
        var urlPut = Uri.parse("${globals.api}/events");
        var responsePut = await http.put(urlPut,
            headers: {
              HttpHeaders.cookieHeader: 'access_token=${accessToken}',
              HttpHeaders.acceptHeader: 'application/json, text/plain, */*',
              HttpHeaders.contentTypeHeader: 'application/json'
            },
            body: jsonEncode({
              'name': name,
              'place': place,
              'start_date': widget.events["date"],
              'end_date': widget.events['date'],
              'organizers': send,
              'latitude': '0.0',
              'longitude': '0.0',
            }));
        print(responsePut.statusCode);
        if ((responsePut.statusCode == 200) ||
            (responsePut.statusCode == 201)) {
          showEventDialog(context, "Evenement ${name} ajoute");
        } else {
          var text = "";
          switch (responsePut.statusCode) {
            case 400:
              {
                text = "Requête mal construite";
              }
              break;
            case 406:
              {
                text = "Mot de passe incorrect";
              }
              break;
            case 404:
              {
                text = "Utilisateur inconnu";
              }
              break;
            case 403:
              {
                text = "Utilisateur desactive";
              }
              break;
            case 410:
              {
                text = "Token invalide";
              }
              break;
            case 500:
              {
                text = "Probleme interne du serveur";
              }
              break;
            default:
              {
                text = "Probleme d'authentification inconnu";
              }
              break;
          }
          showErrorDialog(context, text);
        }
      } catch (e) {
        showErrorDialog(context, "${e}");
      }
    } else {
      showErrorDialog(context, "Champ vide");
    }
  }

  void start() async {
    inputName.text = widget.events["name"];
    inputPlace.text = widget.events["place"];
  }

  @override
  void initState() {
    start();
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      appBar: AppBar(
        title: Text("Login Page"),
        backgroundColor: Colors.blue,
        foregroundColor: Colors.white,
      ),
      body: SingleChildScrollView(
        child: Column(
          children: <Widget>[
            Padding(
              padding: const EdgeInsets.only(top: 60.0),
              child: Center(
                child: Container(
                    width: 200,
                    height: 150,
                    decoration: BoxDecoration(
                        color: Colors.red,
                        borderRadius: BorderRadius.circular(50.0)),
                    child: Image.asset('./images/flutter.png')),
              ),
            ),
            Padding(
              //padding: const EdgeInsets.only(left:15.0,right: 15.0,top:0,bottom: 0),
              padding: EdgeInsets.symmetric(horizontal: 15),
              child: TextField(
                controller: inputName,
                decoration: InputDecoration(
                    border: OutlineInputBorder(),
                    labelText: 'Nom',
                    hintText: 'Modifier le nom de l\'évènement'),
              ),
            ),
            Padding(
              padding: const EdgeInsets.only(
                  left: 15.0, right: 15.0, top: 15, bottom: 0),
              //padding: EdgeInsets.symmetric(horizontal: 15),
              child: TextField(
                controller: inputPlace,
                decoration: InputDecoration(
                    border: OutlineInputBorder(),
                    labelText: 'Lieu',
                    hintText: 'Entrer le lieu'),
              ),
            ),
            SizedBox(
              height: 30,
            ),
            Container(
              height: 50,
              width: 250,
              decoration: BoxDecoration(
                  color: Colors.blue, borderRadius: BorderRadius.circular(20)),
              child: TextButton(
                onPressed: () {
                  _updateEvent(context);
                },
                child: Text(
                  'Ajouter',
                  style: TextStyle(color: Colors.white, fontSize: 25),
                ),
              ),
            )
          ],
        ),
      ),
    );
  }
}