// Author: fruit.com.cn

import 'package:flutter/material.dart';

import '../../../core/data/models/drama.dart';
import '../../../core/theme/app_colors.dart';
import '../../../core/theme/app_dimens.dart';
import '../../../core/widgets/cover_play_count.dart';
import '../../../core/widgets/drama_cover_badge_ribbon.dart';
import '../../../core/widgets/remote_image.dart';
import '../../../l10n/app_localizations.dart';
import 'home_drama_classification.dart';

final RegExp _tagSplitter = RegExp(r'[,/、·]');

enum HomeDramaBadge { hot, newRelease, anime }

class HomeFeedCard extends StatelessWidget {
  const HomeFeedCard({
    super.key,
    required this.drama,
    required this.onTap,
    this.now,
  });

  final Drama drama;
  final VoidCallback onTap;
  final DateTime? now;

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context)!;
    return Material(
      key: Key('home-feed-card-${drama.id}'),
      color: AppColors.transparent,
      child: InkWell(
        borderRadius: BorderRadius.circular(AppDimens.cardCoverRadius),
        onTap: onTap,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          mainAxisAlignment: MainAxisAlignment.start,
          children: [
            _cover(l10n),
            Expanded(
              child: Padding(
                padding: const EdgeInsets.only(
                  top: AppDimens.cardCoverTitleGap,
                ),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  mainAxisAlignment: MainAxisAlignment.start,
                  children: [
                    Text(
                      drama.title,
                      key: Key('home-feed-title-${drama.id}'),
                      maxLines: 2,
                      overflow: TextOverflow.ellipsis,
                      textAlign: TextAlign.left,
                      style: const TextStyle(
                        color: AppColors.navSelected,
                        fontSize: AppDimens.cardTitleFont,
                        fontWeight: FontWeight.w500,
                        height: AppDimens.cardTitleLineHeight,
                      ),
                    ),
                    const SizedBox(height: AppDimens.cardTitleTagGap),
                    _tags(),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _cover(AppLocalizations l10n) {
    final badge = _badge();
    return ClipRRect(
      key: Key('home-feed-cover-clip-${drama.id}'),
      borderRadius: BorderRadius.circular(AppDimens.cardCoverRadius),
      child: AspectRatio(
        aspectRatio: AppDimens.cardCoverAspectRatio,
        child: Stack(
          fit: StackFit.expand,
          children: [
            RemoteImage(
              drama.posterUrl,
              key: Key('home-feed-cover-${drama.id}'),
              fit: BoxFit.cover,
              showFallbackIcon: true,
              fallbackColor: AppColors.contentSurface,
            ),
            if (badge != null)
              Positioned(
                top: 0,
                right: 0,
                child: DramaCoverBadgeRibbon(
                  label: _badgeLabel(l10n, badge),
                  color: _badgeColor(badge),
                  keyPrefix: '${drama.id}-${badge.name}',
                ),
              ),
            const Positioned(
              left: 0,
              right: 0,
              bottom: 0,
              child: CoverBottomScrim(),
            ),
            Positioned(
              right: AppDimens.cardPlayCountRight,
              bottom: AppDimens.cardPlayCountBottom,
              child: CoverPlayCount(
                key: Key('home-feed-views-${drama.id}'),
                count: drama.viewCount,
              ),
            ),
          ],
        ),
      ),
    );
  }

  HomeDramaBadge? _badge() {
    if (drama.dramaType.toUpperCase() == 'ANIME') {
      return HomeDramaBadge.anime;
    }
    if (isNewDrama(drama, now: now)) return HomeDramaBadge.newRelease;
    if (isHotDrama(drama)) {
      return HomeDramaBadge.hot;
    }
    return null;
  }

  String _badgeLabel(AppLocalizations l10n, HomeDramaBadge badge) {
    return switch (badge) {
      HomeDramaBadge.hot => l10n.homeBadgeHot,
      HomeDramaBadge.newRelease => l10n.homeBadgeNew,
      HomeDramaBadge.anime => l10n.homeBadgeAnime,
    };
  }

  Color _badgeColor(HomeDramaBadge badge) {
    return switch (badge) {
      HomeDramaBadge.hot => AppColors.badgeHot,
      HomeDramaBadge.newRelease => AppColors.badgeNew,
      HomeDramaBadge.anime => AppColors.badgeAnime,
    };
  }

  Widget _tags() {
    final tags = _cardTags();
    if (tags.isEmpty) return const SizedBox.shrink();
    return Text(
      tags.join(' | '),
      key: Key('home-feed-tags-${drama.id}'),
      maxLines: 1,
      overflow: TextOverflow.ellipsis,
      textAlign: TextAlign.left,
      style: const TextStyle(
        color: AppColors.textTertiary,
        fontSize: AppDimens.cardTagFont,
        letterSpacing: 0,
      ),
    );
  }

  List<String> _cardTags() {
    final seen = <String>{};
    return [drama.genre, drama.category]
        .expand((value) => value.split(_tagSplitter))
        .map((value) => value.trim())
        .where((value) => value.isNotEmpty && seen.add(value))
        .take(3)
        .toList(growable: false);
  }
}