import 'package:flutter/material.dart';
import 'package:package_info/package_info.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:url_launcher/url_launcher.dart';

import '../../model/accountModel.dart';
import '../../model/appTheme.dart';
import 'debug/debugOverview.dart';

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

  @override
  State<Settings> createState() => _SettingsState();
}

class _SettingsState extends State<Settings> {

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

  bool developerMode = false;

  @override
  Widget build(BuildContext context) {

    return Scaffold(
      appBar: AppBar(
        title: const Text("Einstellungen"),
      ),
      body: ListView(
        children: [

          ListTile(
            leading: const Icon(Icons.logout_outlined),
            title: const Text("Konto abmelden"),
            onTap: () {
              showDialog(
                context: context,
                builder: (context) {
                  return AlertDialog(
                    title: const Text("Abmelden?"),
                    content: const Text("Möchtest du dich wirklich abmelden?"),
                    actions: [
                      TextButton(
                          child: const Text("Abmelden"),
                          onPressed: () {
                            SharedPreferences.getInstance().then((value) => {
                              value.clear(),
                            }).then((value) => {
                              Provider.of<AccountModel>(context, listen: false).logout(),
                              Navigator.popUntil(context, (route) => !Navigator.canPop(context)),
                            });
                          }
                      ),

                      TextButton(
                        child: const Text("Abbrechen"),
                        onPressed: () {
                          Navigator.pop(context);
                        },
                      ),
                    ],
                  );
                },
              );
            },
          ),

          const Divider(),

          Consumer<AppTheme>(
            builder: (context, value, child) {
              return ListTile(
                leading: const Icon(Icons.dark_mode_outlined),
                title: const Text("Farbgebung"),
                trailing: DropdownButton<ThemeMode>(
                  value: value.getMode,
                  icon: const Icon(Icons.arrow_drop_down),
                  items: ThemeMode.values.map((e) => DropdownMenuItem<ThemeMode>(
                    value: e,
                    enabled: e != value.getMode,
                    child: Row(
                      children: [
                        Icon(AppTheme.getDisplayOptions(e).icon),
                        const SizedBox(width: 10),
                        Text(AppTheme.getDisplayOptions(e).displayName),
                      ],
                    ),
                  )).toList(),
                  onChanged: (e) {
                    Provider.of<AppTheme>(context, listen: false).setTheme(e ?? ThemeMode.system);
                  },
                ),
              );
            },
          ),

          const Divider(),

          ListTile(
            leading: const Icon(Icons.live_help_outlined),
            title: const Text("Informationen und Lizenzen"),
            onTap: () async {
              final appInfo = await PackageInfo.fromPlatform();

              if(!context.mounted) return; // TODO Fix context used in async
              showAboutDialog(
                context: context,
                applicationIcon: const Icon(Icons.apps),
                applicationName: "MarianumMobile",
                applicationVersion: "${appInfo.appName}\n\nPackage: ${appInfo.packageName}\n\nVersion: ${appInfo.version}\nBuild: ${appInfo.buildNumber}",
                applicationLegalese: "Dies ist ein Inoffizieller Nextcloud & Webuntis Client und wird nicht vom Marianum selbst betrieben.\n"
                    "Keinerlei Gewähr für Vollständigkeit, Richtigkeit und Aktualität!\n\n"
                    "Development build\n"
                    "Marianum Fulda 2023 Elias Müller",
              );
            },
            trailing: const Icon(Icons.arrow_right),
          ),

          ListTile(
            leading: const Icon(Icons.policy_outlined),
            title: const Text("Datenschutz"),
            onTap: () {
              launchUrl(Uri.parse("https://mhsl.eu/datenschutz.html"));
            },
            trailing: const Icon(Icons.open_in_new),
          ),

          ListTile(
            leading: const Icon(Icons.badge_outlined),
            title: const Text("Impressum"),
            onTap: () {
              launchUrl(Uri.parse("https://mhsl.eu/id.html"));
            },
            trailing: const Icon(Icons.open_in_new),
          ),

          const Divider(),

          ListTile(
            leading: const Icon(Icons.developer_mode_outlined),
            title: const Text("Entwicklermodus"),
            trailing: Checkbox(
              visualDensity: const VisualDensity(horizontal: VisualDensity.minimumDensity),
              value: developerMode,
              onChanged: (state) {
                setState(() {
                  developerMode = !developerMode;
                });
              },
            ),
          ),

          Visibility(
            visible: developerMode,
            child: ListTile(
              leading: const Icon(Icons.data_object),
              title: const Text("Storage view"),
              onTap: () {
                Navigator.push(context, MaterialPageRoute(builder: (context) {
                  return const DebugOverview();
                }));
              },
              trailing: const Icon(Icons.arrow_right),
            ),
          ),

          Visibility(
            visible: developerMode && false, // TODO Implement verbose logging
            child: ListTile(
              leading: const Icon(Icons.logo_dev),
              title: const Text("Logging verbosity"),
              trailing: DropdownButton<String>(
                value: "1",
                items: ["1", "2", "3"].map((e) => DropdownMenuItem<String>(value: e, child: Text(e))).toList(),
                onChanged: (e) {

                },
              ),
            ),
          ),
        ],
      ),
    );
  }
}