smilet/lib/Aktivitet/Participate.dart

// ignore_for_file: prefer_const_constructors, prefer_const_literals_to_create_immutables, file_names

import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:smilet/LoginPage.dart';
import 'package:smilet/MainMenu/Meny.dart';
import 'dart:async';
import 'package:http/http.dart' as http;
import 'package:smilet/User.dart';

Future<List> _getActivities(String schoolCode) async {
  var response = await http.get(Uri.parse(
      'https://group-15-3.pvt.dsv.su.se/activity/available?schoolCode=${schoolCode}&username=${user.getUsername()}'));
  if (response.statusCode == 200) {
    // If the server did return a 200 OK response,
    // then parse the JSON.
    debugPrint("YES");
    return jsonDecode(response.body) as List<dynamic>;
  } else {
    // If the server did not return a 200 OK response,
    // then throw an exception.
    debugPrint("NO");
    debugPrint(response.statusCode.toString());
    throw Exception();
  }
}

Future<void> _updateActivity(int id, String username) async {
  var response = await http.get(Uri.parse(
      'https://group-15-3.pvt.dsv.su.se/activity/update?id=${id}&username=${username}'));
  if (response.statusCode == 200) {
    // If the server did return a 200 OK response,
    // then parse the JSON.
    debugPrint("YES");
  } else {
    // If the server did not return a 200 OK response,
    // then throw an exception.
    debugPrint("NO");
    debugPrint(response.statusCode.toString());
    debugPrint(username);
    throw Exception();
  }
}

class Participate extends StatefulWidget {
  final User user;
  const Participate({super.key, required this.user});

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

class _ParticipateState extends State<Participate> {
  @override
  Widget build(BuildContext context) {
    var futureBuilder = FutureBuilder(
      future: _getActivities(user.getSchoolCode().toString()),
      builder: (BuildContext context, AsyncSnapshot snapshot) {
        switch (snapshot.connectionState) {
          case ConnectionState.none:
            return Text('connectionstate none');
          case ConnectionState.waiting:
            return _emptyActivities(context, snapshot);
          default:
            if (snapshot.hasError) {
              return Text('snapshot error' + snapshot.error.toString());
            } else if (snapshot.hasData) {
              return _generateActivities(context, snapshot);
            } else {
              return Text('snapshot null');
            }
        }
      },
    );
    return Scaffold(
        appBar: AppBar(
          centerTitle: true,
          title: Image.asset(
            'assets/images/ml_logo.png',
            height: 40,
          ),
        ),
        body: Center(
            child: Column(children: <Widget>[
          SizedBox(height: 15),
          Text(
              '${schoolDetails["institution"].toString().toUpperCase()}s aktiviteter',
              style: TextStyle(
                fontSize: 25,
                fontWeight: FontWeight.bold,
              )),
          Expanded(child: futureBuilder),
        ])));
  }

  Widget _generateActivities(BuildContext context, AsyncSnapshot snapshot) {
    List<dynamic> items = snapshot.data;
    if (items.isEmpty) {
      return Center(
        child: Text("Inga kommande aktiviter!"),
      );
    } else {
      return ListView.separated(
        padding: const EdgeInsets.all(8),
        itemCount: items.length + 1,
        itemBuilder: (BuildContext context, int index) {
          if (index == 0) {
            return Container();
          } else {
            Map map = items[index - 1];
            int id = map["id"];
            String title = map["title"].toString();
            String place = map["place"].toString();
            String time = map["time"].toString();
            String date = map["date"].toString();
            String creatorUser = map["creatorUser"].toString();
            int amountRegistered = map["amountRegistered"];

            return Container(
              decoration: BoxDecoration(
                  color: Color.fromARGB(255, 59, 154, 233),
                  borderRadius: BorderRadius.all(Radius.circular(20))),
              padding: const EdgeInsets.all(8),
              height: 170,
              child: Column(
                children: <Widget>[
                  Row(
                    children: <Widget>[
                      Expanded(
                        child: Text(
                          title,
                          textAlign: TextAlign.left,
                          style: TextStyle(
                              fontSize: 30,
                              fontWeight: FontWeight.bold,
                              color: Colors.white),
                        ),
                      ),
                      Padding(
                        padding: const EdgeInsets.only(right: 20),
                        child: Text(
                          date,
                          textAlign: TextAlign.right,
                          style: TextStyle(
                              fontSize: 30,
                              fontWeight: FontWeight.bold,
                              color: Colors.white),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    children: <Widget>[
                      Expanded(
                        child: Text(
                          place,
                          textAlign: TextAlign.left,
                          style: TextStyle(fontSize: 20, color: Colors.white),
                        ),
                      ),
                      Padding(
                        padding: const EdgeInsets.only(right: 20),
                        child: Text(
                          time,
                          textAlign: TextAlign.right,
                          style: TextStyle(fontSize: 20, color: Colors.white),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    children: <Widget>[
                      Expanded(
                        child: Text(
                          "Skapare: " + creatorUser,
                          textAlign: TextAlign.left,
                          style: TextStyle(fontSize: 20, color: Colors.white),
                        ),
                      ),
                      Padding(
                        padding: const EdgeInsets.only(right: 20),
                        child: Text(
                          "Antal deltagare: " + amountRegistered.toString(),
                          textAlign: TextAlign.right,
                          style: TextStyle(fontSize: 15, color: Colors.white),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    children: <Widget>[
                      Expanded(
                        child: ElevatedButton(
                            child: Text(
                              "Anmäl",
                              style: TextStyle(color: Colors.white),
                            ),
                            style: TextButton.styleFrom(
                              backgroundColor: Color.fromARGB(255, 2, 205, 93),
                            ),
                            onPressed: () async {
                              await _updateActivity(id, user.getUsername());
                              setState(() {});
                              Navigator.push(
                                  context,
                                  MaterialPageRoute(
                                      builder: (context) => Meny(
                                            user: user,
                                            schoolDetails: schoolDetails,
                                          )));
                            }),
                      ),
                    ],
                  )
                ],
              ),
            );
          }
        },
        separatorBuilder: (BuildContext context, int index) => const Divider(),
      );
    }
  }

  Widget _emptyActivities(BuildContext context, AsyncSnapshot snapshot) {
    return Center(child: CircularProgressIndicator());
  }
}