import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:flutter_settings_ui/flutter_settings_ui.dart';
import 'package:go_router/go_router.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:material_symbols_icons/symbols.dart';
import 'package:vaani/router/router.dart';
import 'package:vaani/settings/app_settings_provider.dart';
import 'package:vaani/settings/models/app_settings.dart' as model;
import 'package:vaani/settings/view/buttons.dart';
import 'package:vaani/settings/view/simple_settings_page.dart';
import 'package:vaani/settings/view/widgets/navigation_with_switch_tile.dart';

class AppSettingsPage extends HookConsumerWidget {
  const AppSettingsPage({
    super.key,
  });

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final appSettings = ref.watch(appSettingsProvider);
    final sleepTimerSettings = appSettings.sleepTimerSettings;

    return SimpleSettingsPage(
      title: const Text('App Settings'),
      sections: [
        // General section
        SettingsSection(
          margin: const EdgeInsetsDirectional.symmetric(
            horizontal: 16.0,
            vertical: 8.0,
          ),
          title: Text(
            'General',
            style: Theme.of(context).textTheme.titleLarge,
          ),
          tiles: [
            SettingsTile(
              title: const Text('Player Settings'),
              leading: const Icon(Icons.play_arrow),
              description: const Text(
                'Customize the player settings',
              ),
              onPressed: (context) {
                context.pushNamed(Routes.playerSettings.name);
              },
            ),
            NavigationWithSwitchTile(
              title: const Text('Auto Turn On Sleep Timer'),
              description: const Text(
                'Automatically turn on the sleep timer based on the time of day',
              ),
              leading: sleepTimerSettings.autoTurnOnTimer
                  ? const Icon(Symbols.time_auto, fill: 1)
                  : const Icon(Symbols.timer_off, fill: 1),
              onPressed: (context) {
                context.pushNamed(Routes.autoSleepTimerSettings.name);
              },
              value: sleepTimerSettings.autoTurnOnTimer,
              onToggle: (value) {
                ref.read(appSettingsProvider.notifier).update(
                      appSettings.copyWith.sleepTimerSettings(
                        autoTurnOnTimer: value,
                      ),
                    );
              },
            ),
            NavigationWithSwitchTile(
              title: const Text('Shake Detector'),
              leading: const Icon(Icons.vibration),
              description: const Text(
                'Customize the shake detector settings',
              ),
              value: appSettings.shakeDetectionSettings.isEnabled,
              onPressed: (context) {
                context.pushNamed(Routes.shakeDetectorSettings.name);
              },
              onToggle: (value) {
                ref.read(appSettingsProvider.notifier).update(
                      appSettings.copyWith.shakeDetectionSettings(
                        isEnabled: value,
                      ),
                    );
              },
            ),
          ],
        ),

        // Appearance section
        SettingsSection(
          margin: const EdgeInsetsDirectional.symmetric(
            horizontal: 16.0,
            vertical: 8.0,
          ),
          title: Text(
            'Appearance',
            style: Theme.of(context).textTheme.titleLarge,
          ),
          tiles: [
            SettingsTile.navigation(
              leading: const Icon(Icons.color_lens),
              title: const Text('Theme Settings'),
              description: const Text(
                'Customize the app theme',
              ),
              onPressed: (context) {
                context.pushNamed(Routes.themeSettings.name);
              },
            ),
            SettingsTile(
              title: const Text('Notification Media Player'),
              leading: const Icon(Icons.play_lesson),
              description: const Text(
                'Customize the media player in notifications',
              ),
              onPressed: (context) {
                context.pushNamed(Routes.notificationSettings.name);
              },
            ),
            SettingsTile.navigation(
              leading: const Icon(Icons.home_filled),
              title: const Text('Home Page Settings'),
              description: const Text(
                'Customize the home page',
              ),
              onPressed: (context) {
                context.pushNamed(Routes.homePageSettings.name);
              },
            ),
          ],
        ),

        // Backup and Restore section
        SettingsSection(
          margin: const EdgeInsetsDirectional.symmetric(
            horizontal: 16.0,
            vertical: 8.0,
          ),
          title: Text(
            'Backup and Restore',
            style: Theme.of(context).textTheme.titleLarge,
          ),
          tiles: [
            SettingsTile(
              title: const Text('Copy to Clipboard'),
              leading: const Icon(Icons.copy),
              description: const Text(
                'Copy the app settings to the clipboard',
              ),
              onPressed: (context) async {
                // copy to clipboard
                await Clipboard.setData(
                  ClipboardData(
                    text: jsonEncode(appSettings.toJson()),
                  ),
                );
                // show toast
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(
                    content: Text('Settings copied to clipboard'),
                  ),
                );
              },
            ),
            SettingsTile(
              title: const Text('Restore'),
              leading: const Icon(Icons.restore),
              description: const Text(
                'Restore the app settings from the backup',
              ),
              onPressed: (context) {
                // show a dialog to get the backup
                showDialog(
                  context: context,
                  builder: (context) {
                    return RestoreDialogue();
                  },
                );
              },
            ),

            // a button to reset the app settings
            SettingsTile(
              title: const Text('Reset App Settings'),
              leading: const Icon(Icons.settings_backup_restore),
              description: const Text(
                'Reset the app settings to the default values',
              ),
              onPressed: (context) async {
                // confirm the reset
                final res = await showDialog(
                  context: context,
                  builder: (context) {
                    return AlertDialog(
                      title: const Text('Reset App Settings'),
                      content: const Text(
                        'Are you sure you want to reset the app settings?',
                      ),
                      actions: [
                        TextButton(
                          onPressed: () {
                            Navigator.of(context).pop(false);
                          },
                          child: const Text('Cancel'),
                        ),
                        TextButton(
                          onPressed: () {
                            Navigator.of(context).pop(true);
                          },
                          child: const Text('Reset'),
                        ),
                      ],
                    );
                  },
                );

                // if the user confirms the reset
                if (res == true) {
                  ref.read(appSettingsProvider.notifier).reset();
                }
              },
            ),
          ],
        ),
      ],
    );
  }
}

class RestoreDialogue extends HookConsumerWidget {
  const RestoreDialogue({
    super.key,
  });

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final formKey = useMemoized(() => GlobalKey<FormState>());
    final settings = useState<model.AppSettings?>(null);

    final settingsInputController = useTextEditingController();
    return AlertDialog(
      title: const Text('Restore Backup'),
      content: Form(
        key: formKey,
        child: TextFormField(
          autofocus: true,
          decoration: InputDecoration(
            labelText: 'Backup',
            hintText: 'Paste the backup here',
            // clear button
            suffixIcon: IconButton(
              icon: Icon(Icons.clear),
              onPressed: () {
                settingsInputController.clear();
              },
            ),
          ),
          validator: (value) {
            if (value == null || value.isEmpty) {
              return 'Please paste the backup here';
            }
            try {
              // try to decode the backup
              settings.value = model.AppSettings.fromJson(
                jsonDecode(value),
              );
            } catch (e) {
              return 'Invalid backup';
            }
            return null;
          },
        ),
      ),
      actions: [
        CancelButton(),
        TextButton(
          onPressed: () {
            if (formKey.currentState!.validate()) {
              if (settings.value == null) {
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(
                    content: Text('Invalid backup'),
                  ),
                );
                return;
              }
              ref.read(appSettingsProvider.notifier).update(settings.value!);
              settingsInputController.clear();
              Navigator.of(context).pop();
              ScaffoldMessenger.of(context).showSnackBar(
                const SnackBar(
                  content: Text('Settings restored'),
                ),
              );
            } else {
              ScaffoldMessenger.of(context).showSnackBar(
                const SnackBar(
                  content: Text('Invalid backup'),
                ),
              );
            }
          },
          child: const Text('Restore'),
        ),
      ],
    );
  }
}