buzz/mobile/lib/features/settings/settings_page.dart

import 'package:buzz/shared/widgets/feedback_snackbar.dart';
import 'dart:async';

import 'package:buzz/shared/crypto/event_signing.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:buzz/shared/theme/buzz_icons.dart';
import 'package:nostr/nostr.dart' as nostr;
import 'package:package_info_plus/package_info_plus.dart';

import '../../shared/auth/auth.dart';
import '../../shared/identity_transfer/nsec_export_sheet.dart';
import '../../shared/clipboard_utils.dart';
import '../../shared/hosted/organization_environment.dart';
import '../../shared/hosted/organization_sign_out.dart';
import '../../shared/push/push_relay_capability_provider.dart';
import '../../shared/push/push_bootstrap.dart';
import '../../shared/relay/relay.dart';
import '../../shared/utils/string_utils.dart';
import '../pairing/pairing_provider.dart';
import '../../shared/theme/theme.dart';
import '../../shared/widgets/app_list.dart';
import '../../shared/widgets/app_list_card.dart';
import '../../shared/widgets/frosted_app_bar.dart';
import '../../shared/widgets/frosted_scaffold.dart';
import '../../shared/widgets/ios_glass_navigation_button.dart';
import '../../shared/widgets/immediate_page_route.dart';

part 'settings_page/profile_section.dart';
part 'settings_page/status_section.dart';
part 'settings_page/connection_section.dart';
part 'settings_page/notifications_section.dart';

Widget _emptyProfileEditPage(BuildContext context) => const SizedBox.shrink();

class SettingsPage extends HookConsumerWidget {
  /// Creates the settings page.
  const SettingsPage({
    super.key,
    required this.profileHeader,
    required this.identityRecoveryPageBuilder,
    this.profileEditPageBuilder = _emptyProfileEditPage,
    this.onSetStatus,
    this.onEditDisplayName,
    this.onEditProfileDescription,
  });

  /// Header widget displayed at the top of settings.
  final Widget profileHeader;

  /// Builds the identity-recovery page pushed from the recovery settings row.
  final WidgetBuilder identityRecoveryPageBuilder;

  /// Builds the current-user profile editor opened from the Photo row.
  final WidgetBuilder profileEditPageBuilder;

  /// Opens the current-user status editor.
  final void Function(BuildContext context)? onSetStatus;

  /// Opens the display-name editor from the settings section.
  final Future<void> Function(BuildContext context)? onEditDisplayName;

  /// Opens the profile-description editor from the settings section.
  final Future<void> Function(BuildContext context)? onEditProfileDescription;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final packageInfoFuture = useMemoized(() => PackageInfo.fromPlatform());
    final packageInfo = useFuture(packageInfoFuture);
    final topSectionHeight = frostedAppBarHeight(
      context,
      bottomHeight: Grid.xxs,
    );

    // Keep feedback local even while Home is mounted during the transition.
    return ScaffoldMessenger(
      child: FrostedScaffold(
        useUtilitySurfaceTheme: true,
        appBar: FrostedAppBar(
          nativeTitle: 'Settings',
          nativeLeading: IosNavigationAction(
            label: 'Close settings',
            symbol: 'xmark',
            onPressed: () => Navigator.of(context).pop(),
          ),
          automaticallyImplyLeading: false,
          horizontalInset: Grid.gutter,
          leading: Theme.of(context).platform == TargetPlatform.iOS
              ? IosGlassNavigationButton(
                  key: const ValueKey('settings-ios-glass-close'),
                  icon: IosGlassNavigationIcon.close,
                  semanticLabel: 'Close settings',
                  onPressed: () {
                    unawaited(HapticFeedback.lightImpact());
                    Navigator.of(context).pop();
                  },
                  foregroundColor: navigationPrimaryForeground(context),
                )
              : SizedBox(
                  width: Grid.xl,
                  height: Grid.xl,
                  child: IconButton(
                    tooltip: 'Close settings',
                    onPressed: () {
                      unawaited(HapticFeedback.lightImpact());
                      Navigator.of(context).pop();
                    },
                    color: navigationPrimaryForeground(context),
                    icon: const Icon(BuzzIcons.x),
                  ),
                ),
          bottomHeight: Grid.xxs,
          bottom: const SizedBox.expand(),
        ),
        body: ListView(
          padding: EdgeInsets.only(
            top: topSectionHeight,
            bottom: MediaQuery.paddingOf(context).bottom + Grid.xs,
          ),
          children: [
            profileHeader,
            _StatusSection(onSetStatus: onSetStatus),
            _ProfileSection(
              profileEditPageBuilder: profileEditPageBuilder,
              onEditDisplayName: onEditDisplayName,
              onEditProfileDescription: onEditProfileDescription,
            ),
            const _NotificationsSection(),
            _ConnectionSection(
              identityRecoveryPageBuilder: identityRecoveryPageBuilder,
            ),
            // An internal build's only way out of its organization, rarely
            // needed, so it sits last.
            if (OrganizationEnvironment.enabled)
              AppListCard(
                verticalPadding: Grid.twelve,
                children: [
                  AppListRow(
                    key: const Key('settings-sign-out'),
                    icon: BuzzIcons.logOut,
                    title: 'Sign out',
                    titleColor: context.colors.error,
                    onTap: () => confirmOrganizationSignOut(context, ref),
                  ),
                ],
              ),
            if (packageInfo.hasData)
              _VersionFooter(
                version: packageInfo.data!.version,
                buildNumber: packageInfo.data!.buildNumber,
              ),
          ],
        ),
      ),
    );
  }
}

class _VersionFooter extends StatelessWidget {
  const _VersionFooter({required this.version, required this.buildNumber});

  final String version;
  final String buildNumber;

  @override
  Widget build(BuildContext context) {
    final label = buildNumber.isEmpty
        ? 'v$version'
        : 'v$version ($buildNumber)';
    return SafeArea(
      top: false,
      child: Center(
        child: Semantics(
          button: true,
          onTapHint: 'Copy version',
          child: InkWell(
            borderRadius: BorderRadius.circular(Grid.xs),
            onTap: () =>
                copyToClipboard(context, label, message: 'Version copied'),
            // Keep the text where it was and grow the tap target downward
            // to the platform minimum.
            child: ConstrainedBox(
              constraints: const BoxConstraints(
                minHeight: kMinInteractiveDimension,
              ),
              child: Padding(
                padding: const EdgeInsets.fromLTRB(
                  Grid.xs,
                  Grid.xxs,
                  Grid.xs,
                  Grid.xs,
                ),
                child: Text(
                  label,
                  style: context.textTheme.bodySmall?.copyWith(
                    color: context.colors.onSurfaceVariant.withValues(
                      alpha: 0.6,
                    ),
                  ),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}

/// Trailing affordance shared by the rows that push a picker page.
class _RowChevron extends StatelessWidget {
  const _RowChevron();

  @override
  Widget build(BuildContext context) {
    return Icon(
      BuzzIcons.chevronRight,
      size: 18,
      color: context.colors.onSurfaceVariant,
    );
  }
}