// GCG.MeinCantor - Die Schulplattform für Cantorianer.
// Copyright (C) 2021-2022 Georg-Cantor-Gymnasium Halle (Saale)

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

import 'package:flutter/material.dart';
import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
import 'package:meincantor/networking.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'package:meincantor/const.dart';
import 'package:webviewx/webviewx.dart';

Future<String> getSettingsString(String key) async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  String? value = prefs.getString(key);
  if (value == null || value.isEmpty) {
    value = "";
  }
  return value;
}

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

  @override
  Widget build(BuildContext context) {
    //TextEditingController nameController = TextEditingController(text: "Denys Konovalov");
    return Scaffold(
        appBar: AppBar(
          title: const Text("Benutzereinstellungen"),
          centerTitle: true,
        ),
        body: LayoutBuilder(builder: (context, constraints) {
          double widgetWidth = constraints.maxWidth;

          int factor;

          if (widgetWidth <= 600) {
            factor = 1;
          } else if (widgetWidth <= 1400) {
            factor = 2;
          } else if (widgetWidth <= 2000) {
            factor = 3;
          } else {
            factor = 1;
          }

          return Center(
            heightFactor: 1,
            child: Container(
                constraints: BoxConstraints(
                  maxWidth: MediaQuery.of(context).size.width / factor,
                ),
                child: ListView(
                  padding: const EdgeInsets.fromLTRB(5, 5, 5, 5),
                  children: [
                    Padding(
                      padding: const EdgeInsets.fromLTRB(10, 10, 10, 10),
                      child: FutureBuilder(
                        future: Future.sync(() async {
                          SharedPreferences prefs =
                              await SharedPreferences.getInstance();
                          String? user = prefs.getString("user");
                          if (user == null || user.isEmpty) {
                            user = "";
                          }
                          String? name = prefs.getString("name");
                          if (name == null || name.isEmpty) {
                            name = "";
                          }
                          Map data = {"user": user, "name": name};
                          return data;
                        }),
                        builder: (context, snapshot) {
                          if (snapshot.hasData) {
                            String url =
                                "$avatarUrl/${(snapshot.data! as Map)['user']}";
                            return Container(
                                width: 120.0,
                                height: 120.0,
                                decoration: BoxDecoration(
                                    shape: BoxShape.circle,
                                    image: DecorationImage(
                                        fit: BoxFit.scaleDown,
                                        image: NetworkImage(url))));
                          } else {
                            return const CircularProgressIndicator();
                          }
                        },
                      ),
                    ),
                    Padding(
                      padding: const EdgeInsets.fromLTRB(5, 5, 5, 5),
                      child: FutureBuilder(
                          future: getSettingsString("name"),
                          builder: (context, snapshot) {
                            if (snapshot.hasData) {
                              return TextField(
                                decoration: const InputDecoration(
                                    border: OutlineInputBorder(),
                                    labelText: 'Name',
                                    icon: Icon(MdiIcons.passport)),
                                readOnly: true,
                                controller: TextEditingController(
                                    text: snapshot.data as String),
                              );
                            } else {
                              return (const Center(
                                  child: CircularProgressIndicator()));
                            }
                          }),
                    ),
                    const Divider(),
                    Padding(
                      padding: const EdgeInsets.fromLTRB(5, 5, 5, 5),
                      child: FutureBuilder(
                          future: getSettingsString("user"),
                          builder: (context, snapshot) {
                            if (snapshot.hasData) {
                              return TextField(
                                decoration: const InputDecoration(
                                    border: OutlineInputBorder(),
                                    labelText: 'Benutzername',
                                    icon: Icon(MdiIcons.identifier)),
                                readOnly: true,
                                controller: TextEditingController(
                                    text: snapshot.data as String),
                              );
                            } else {
                              return (const Center(
                                  child: CircularProgressIndicator()));
                            }
                          }),
                    ),
                    const Divider(),
                    Padding(
                      padding: const EdgeInsets.fromLTRB(5, 5, 5, 5),
                      child: FutureBuilder(
                          future: getSettingsString("email"),
                          builder: (context, snapshot) {
                            if (snapshot.hasData) {
                              return TextField(
                                decoration: const InputDecoration(
                                    border: OutlineInputBorder(),
                                    labelText: 'E-Mail-Adresse',
                                    icon: Icon(Icons.email_outlined)),
                                readOnly: true,
                                controller: TextEditingController(
                                    text: snapshot.data as String),
                              );
                            } else {
                              return (const Center(
                                  child: CircularProgressIndicator()));
                            }
                          }),
                    ),
                    Padding(
                        padding: const EdgeInsets.fromLTRB(5, 20, 5, 5),
                        child: buildClassesChooser()),
                    ListTile(
                      shape: RoundedRectangleBorder(
                          borderRadius: BorderRadius.circular(15.0)),
                      leading: const Icon(MdiIcons.accountSettingsOutline),
                      trailing: const Icon(Icons.link, size: 16),
                      title: const Text("Account-Konsole"),
                      subtitle: const Text("Konto-Einstellungen öffnen"),
                      onTap: () {
                        Navigator.push(
                          context,
                          MaterialPageRoute(
                              builder: (context) => const AccountConsole()),
                        );
                      },
                    ),
                  ],
                )),
          );
        }));
  }
}

class AccountConsole extends StatefulWidget {
  const AccountConsole({Key? key}) : super(key: key);

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

class AccountConsoleState extends State<AccountConsole> {
  @override
  Widget build(BuildContext context) {
    return WebViewX(
        height: MediaQuery.of(context).size.height,
        initialContent:
            'https://mein.cantorgymnasium.de/auth/realms/GCG.MeinCantor/account/',
        initialSourceType: SourceType.url,
        javascriptMode: JavascriptMode.unrestricted,
        width: MediaQuery.of(context).size.width);
  }
}