idrocap/idrocap_mobile_app/lib/private/notifiche.dart

import 'package:flutter/material.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:hexcolor/hexcolor.dart';
import 'package:idrocap/api/api_service.dart';
import 'package:idrocap/private/dettaglio_pratica.dart';
import 'package:idrocap/private/model/notifiche.dart';
import 'package:idrocap/private/widget/menu.dart';
import 'package:http/http.dart' as http;
import 'package:idrocap/utility/utility.dart';
import 'constant/globals.dart' as globals;
import 'dart:convert';

class Notifiche extends StatefulWidget {
  const Notifiche({super.key});

  @override
  State<Notifiche> createState() => _NotificheState();
}

class _NotificheState extends State<Notifiche> {
  late Future<List<RootNotification>> shows;
  @override
  void initState() {
    shows = Future.value([]);
    shows = fetchShows();
    super.initState();
  }

  @override
  void dispose() {
    EasyLoading.dismiss();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return new PopScope(
      canPop: true,
      child: Scaffold(
        appBar: AppBar(
          leading: InkWell(
            onTap: () {
              Navigator.pop(context);
            },
            child: Icon(
              Icons.arrow_back_ios,
              color: Colors.white,
            ),
          ),
          iconTheme: IconThemeData(color: Colors.white),
          backgroundColor: HexColor(globals.colorAppbar),
          title: Center(
            child: Text(
              "Sezione notifiche",
              style: TextStyle(color: Colors.white),
            ),
          ),
        ),
        drawer: Menu(),
        body: SingleChildScrollView(
            child: FutureBuilder<List<RootNotification>>(
          future: shows,
          builder: (context, snapshot) {
            if (snapshot.connectionState == ConnectionState.waiting) {
              return Center(
                child: Padding(
                  padding: EdgeInsets.only(top: 80),
                  child: CircularProgressIndicator(),
                ),
              );
            }

            if (snapshot.hasError) {
              return Padding(
                padding: EdgeInsets.all(10),
                child: Center(
                  child: Text('Errore nel caricamento delle notifiche'),
                ),
              );
            }

            final data = snapshot.data;

            if (data == null || data.isEmpty) {
              globals.userAccess.user.notifications = false;
              return Padding(
                padding: EdgeInsets.all(50),
                child: Center(
                  child: ListTile(
                    leading: Icon(Icons.warning),
                    title: Text("La ricerca non ha fornito alcun risultato"),
                  ),
                ),
              );
            }

            return ListView.builder(
              physics: NeverScrollableScrollPhysics(),
              scrollDirection: Axis.vertical,
              shrinkWrap: true,
              itemCount: data.length,
              itemBuilder: (BuildContext context, int index) {
                final notification = data[index].notificheModel;

                return Column(
                  children: [
                    GestureDetector(
                      onTap: () {
                        EasyLoading.show(status: "Caricamento in corso!");
                        ApiService().setNotification(data[index].id.toString(), context);
                        if (notification.link.contains("water_drawing_paperworks/view/")) {
                          ApiService().getData(0, notification.link, 1).then((value) {
                            EasyLoading.dismiss();

                            if (value["statusCode"] == 200 && value["result"] is Map<String, dynamic>) {
                              Navigator.push(
                                context,
                                MaterialPageRoute(
                                  builder: (context) => PraticheDettaglio(
                                    oggettoRicevuto: value,
                                  ),
                                ),
                              ).then((_) {
                                setState(() {
                                  shows = fetchShows();
                                });
                              });
                            } else {
                              ScaffoldMessenger.of(context).showSnackBar(
                                SnackBar(content: Text(value["result"] ?? "Errore sconosciuto")),
                              );
                            }
                          });
                        }
                        EasyLoading.dismiss();
                        setState(() {
                          shows = fetchShows();
                        });
                        return;
                      },
                      child: ListTile(
                        leading: Icon(Icons.info, size: 40, color: Colors.blue),
                        title: Text(
                          notification.title ?? '',
                          style: TextStyle(fontWeight: FontWeight.bold),
                        ),
                        subtitle: Text(
                          notification.body ?? '',
                          style: TextStyle(fontStyle: FontStyle.italic),
                        ),
                      ),
                    ),
                    Divider(),
                  ],
                );
              },
            );
          },
        )),
      ),
    );
  }

  Future<List<RootNotification>> fetchShows() async {
    var response;

    var url = Uri.parse(globals.url_endpoint + globals.notifiche);
    response = await http.get(url, headers: globals.headers);
    var test = json.decode(utf8.decode(response.bodyBytes));
    if (response.statusCode == 200) {
      var topShowsJson = (test['notifications']) as List;

      return topShowsJson.map((show) => RootNotification.fromJson(show)).toList();
    } else if (response.statusCode == 401) {
      EasyLoading.dismiss();
      Utility().dialogAlert(this.context);
    }
    EasyLoading.dismiss();
    throw Exception('Problemi nel caricare i dati ');
  }
}