eryao/apps/lib/features/settings/presentation/screens/general_settings_screen.dart

import 'package:flutter/material.dart';

import '../../../../l10n/app_localizations.dart';
import '../../../../shared/theme/design_tokens.dart';
import '../../data/models/profile_settings.dart';
import 'language_settings_screen.dart';
import 'settings_placeholder_screen.dart';
import '../widgets/settings_section_widgets.dart';

class GeneralSettingsScreen extends StatefulWidget {
  const GeneralSettingsScreen({
    super.key,
    required this.settings,
    required this.onInterfaceLanguageChanged,
  });

  final ProfileSettingsV1 settings;
  final Future<void> Function(String languageTag) onInterfaceLanguageChanged;

  @override
  State<GeneralSettingsScreen> createState() => _GeneralSettingsScreenState();
}

class _GeneralSettingsScreenState extends State<GeneralSettingsScreen> {
  late ProfileSettingsV1 _settings;

  @override
  void initState() {
    super.initState();
    _settings = widget.settings;
  }

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context)!;
    final colors = Theme.of(context).colorScheme;

    return PopScope<ProfileSettingsV1>(
      canPop: false,
      onPopInvokedWithResult: (didPop, result) {
        if (didPop) {
          return;
        }
        Navigator.of(context).pop(_settings);
      },
      child: Scaffold(
        backgroundColor: colors.surfaceContainerLow,
        appBar: AppBar(
          leading: IconButton(
            onPressed: () => Navigator.of(context).pop(_settings),
            icon: const Icon(Icons.arrow_back_ios_new_rounded),
          ),
          title: Text(l10n.settingsGeneralTitle),
          centerTitle: true,
          backgroundColor: colors.surfaceContainerLow,
          surfaceTintColor: colors.surfaceContainerLow,
        ),
        body: ListView(
          padding: const EdgeInsets.all(AppSpacing.lg),
          children: [
            SectionLabel(text: l10n.settingsSectionGeneral),
            SettingsGroupCard(
              children: [
                SettingsMenuTile(
                  icon: Icons.language_rounded,
                  title: l10n.language,
                  subtitle: displayLanguageLabel(
                    l10n,
                    _settings.preferences.interfaceLanguage,
                  ),
                  tint: colors.primary,
                  background: colors.surfaceContainerHighest,
                  onTap: _openLanguageSettings,
                ),
                SettingsMenuTile(
                  icon: Icons.auto_awesome_rounded,
                  title: l10n.settingsAiLanguage,
                  subtitle: displayLanguageLabel(
                    l10n,
                    _settings.preferences.aiLanguage,
                  ),
                  tint: colors.secondary,
                  background: colors.surfaceContainerHighest,
                  onTap: () => _openPlaceholder(
                    title: l10n.settingsAiLanguage,
                    value: displayLanguageLabel(
                      l10n,
                      _settings.preferences.aiLanguage,
                    ),
                    description: l10n.settingsAiLanguageHint,
                  ),
                ),
                SettingsMenuTile(
                  icon: Icons.public_rounded,
                  title: l10n.settingsTimezone,
                  subtitle: _settings.preferences.timezone,
                  tint: colors.primary,
                  background: colors.surfaceContainerHighest,
                  onTap: () => _openPlaceholder(
                    title: l10n.settingsTimezone,
                    value: _settings.preferences.timezone,
                    description: l10n.settingsTimezoneHint,
                  ),
                ),
                SettingsMenuTile(
                  icon: Icons.flag_outlined,
                  title: l10n.settingsCountry,
                  subtitle: _settings.preferences.country,
                  tint: colors.primary,
                  background: colors.surfaceContainerHighest,
                  showDivider: false,
                  onTap: () => _openPlaceholder(
                    title: l10n.settingsCountry,
                    value: _settings.preferences.country,
                    description: l10n.settingsCountryHint,
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }

  Future<void> _openLanguageSettings() async {
    final result = await Navigator.of(context).push<String>(
      MaterialPageRoute<String>(
        builder: (_) => LanguageSettingsScreen(
          selectedLanguageTag: _settings.preferences.interfaceLanguage,
        ),
      ),
    );
    if (result == null || result == _settings.preferences.interfaceLanguage) {
      return;
    }
    await widget.onInterfaceLanguageChanged(result);
    if (!mounted) {
      return;
    }
    setState(() {
      _settings = _settings.copyWith(
        preferences: _settings.preferences.copyWith(interfaceLanguage: result),
      );
    });
  }

  Future<void> _openPlaceholder({
    required String title,
    required String value,
    required String description,
  }) async {
    await Navigator.of(context).push<void>(
      MaterialPageRoute<void>(
        builder: (_) => SettingsPlaceholderScreen(
          title: title,
          value: value,
          description: description,
        ),
      ),
    );
  }
}