import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../../../../shared/widgets/app_button.dart';
import '../../domain/entities/app_settings.dart';
import '../providers/settings_provider.dart';
import '../widgets/settings_widgets.dart';
import '../../../../shared/widgets/app_toast.dart';

class NotificationSettingsScreen extends ConsumerWidget {
  const NotificationSettingsScreen({super.key});

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

    Future<void> update(NotificationSettingsConfig updated) async {
      await ref.read(appSettingsProvider.notifier).updateNotifications(updated);
      if (context.mounted) {
        showAppToastFromSnackBar(context, 
          const SnackBar(content: Text('Notification settings saved')),
        );
      }
    }

    return SettingsPageLayout(
      title: 'Notification Settings',
      subtitle: 'Configure email, SMS, push, and in-app notifications',
      child: Column(
        children: [
          SettingsFormCard(
            title: 'Email Notifications',
            children: [
              SettingsSwitchTile(
                title: 'Asset Allocation',
                subtitle: 'Notify when an asset is allocated to an employee',
                value: notifications.emailAssetAllocation,
                onChanged: (v) =>
                    update(notifications.copyWith(emailAssetAllocation: v)),
              ),
              SettingsSwitchTile(
                title: 'Asset Return',
                subtitle: 'Notify when an asset is returned',
                value: notifications.emailAssetReturn,
                onChanged: (v) =>
                    update(notifications.copyWith(emailAssetReturn: v)),
              ),
              SettingsSwitchTile(
                title: 'Maintenance Request',
                subtitle: 'Notify when a maintenance request is created',
                value: notifications.emailMaintenanceRequest,
                onChanged: (v) =>
                    update(notifications.copyWith(emailMaintenanceRequest: v)),
              ),
              SettingsSwitchTile(
                title: 'Warranty Expiry',
                subtitle: 'Notify before asset warranty expires',
                value: notifications.emailWarrantyExpiry,
                onChanged: (v) =>
                    update(notifications.copyWith(emailWarrantyExpiry: v)),
              ),
            ],
          ),
          const SizedBox(height: 16),
          SettingsFormCard(
            title: 'Other Channels',
            children: [
              SettingsSwitchTile(
                title: 'SMS Notifications',
                value: notifications.smsEnabled,
                onChanged: (v) => update(notifications.copyWith(smsEnabled: v)),
              ),
              SettingsSwitchTile(
                title: 'Push Notifications',
                value: notifications.pushEnabled,
                onChanged: (v) => update(notifications.copyWith(pushEnabled: v)),
              ),
              SettingsSwitchTile(
                title: 'In-App Notifications',
                value: notifications.inAppEnabled,
                onChanged: (v) =>
                    update(notifications.copyWith(inAppEnabled: v)),
              ),
            ],
          ),
          const SizedBox(height: 24),
          AppButton(
            label: 'Settings Auto-Saved',
            onPressed: () {
              showAppToastFromSnackBar(context, 
                const SnackBar(
                  content: Text('Notification settings are saved automatically'),
                ),
              );
            },
          ),
        ],
      ),
    );
  }
}