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

import '../../../core/contracts/library.dart';
import '../../../providers/emby_headers_provider.dart';
import '../../../providers/session_provider.dart';
import '../../../shared/mappers/media_image_url.dart';
import '../../../shared/widgets/cast_scroller.dart';
import 'section_container.dart';

class EmbyCastSection extends ConsumerWidget {
  final EmbyRawItem item;
  final bool embedded;


  final Widget? leading;

  const EmbyCastSection({
    super.key,
    required this.item,
    this.embedded = false,
    this.leading,
  });

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final people = _extractActors(item);
    if (people.isEmpty) return const SizedBox.shrink();

    final session = ref.watch(activeSessionProvider);
    if (session == null) return const SizedBox.shrink();

    final headers = ref.watch(embyImageHeadersProvider).value;
    final hPad = embedded ? 0.0 : SectionContainer.hPadOf(context);

    final entries = people.map((person) {
      final name = person['Name'] as String? ?? '';
      final role = person['Role'] as String?;
      final personId = person['Id'] as String?;
      final imageTag = person['PrimaryImageTag'] as String?;

      final photoUrl = personId != null
          ? _personImageUrl(
              session.serverUrl,
              session.token,
              personId,
              imageTag,
            )
          : null;
      final tappable = personId != null && personId.isNotEmpty;

      return CastEntry(
        name: name,
        subtitle: role,
        imageUrl: photoUrl,
        imageHeaders: headers,
        onTap: tappable ? () => context.push('/person/$personId') : null,
      );
    }).toList();

    return SectionContainer(
      title: '演职人员',
      embedded: embedded,
      leadingDivider: embedded,
      leading: leading,
      child: CastScroller(
        entries: entries,
        padding: EdgeInsets.symmetric(horizontal: hPad),
      ),
    );
  }

  static List<Map<String, dynamic>> _extractActors(EmbyRawItem item) {
    final raw = item.extra['People'];
    if (raw is! List) return const [];
    return raw.whereType<Map<String, dynamic>>().toList();
  }

  static String? _personImageUrl(
    String baseUrl,
    String token,
    String personId,
    String? tag,
  ) {
    if (tag == null) return null;
    return EmbyImageUrl.primaryById(
      baseUrl: baseUrl,
      token: token,
      itemId: personId,
      maxHeight: 200,
    );
  }
}