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

import '../../app/router.dart';
import '../../app/theme.dart';
import '../../offline/download_store.dart';
import '../../audio/player_providers.dart';
import '../../core/models.dart';
import '../../data/catalog_repository.dart';
import '../../data/user_library.dart';
import 'artwork.dart';

class TrackTile extends ConsumerWidget {
  const TrackTile({super.key, required this.track, required this.onTap, this.subtitle, this.card = false});

  final Track track;
  final VoidCallback onTap;
  final String? subtitle;

  /// Card style (rounded surface) used on Home; plain rows elsewhere.
  final bool card;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final catalog = ref.watch(catalogProvider).requireValue;
    final isCurrent = ref.watch(mediaItemProvider).value?.id == track.id;
    final downloads = ref.watch(downloadsProvider);
    final text = Theme.of(context).textTheme;

    final row = InkWell(
      onTap: onTap,
      borderRadius: BorderRadius.circular(16),
      child: Padding(
        padding: EdgeInsets.symmetric(horizontal: card ? 12 : 0, vertical: card ? 10 : 6),
        child: Row(
          children: [
            TrackArtwork.track(track, size: card ? 60 : 52, radius: 10),
            const SizedBox(width: 14),
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(
                    track.titleLatin,
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: text.titleMedium?.copyWith(color: isCurrent ? NkColors.sun : NkColors.cream),
                  ),
                  const SizedBox(height: 2),
                  Row(
                    children: [
                      if (downloads.isDownloaded(track.id))
                        const Padding(
                          padding: EdgeInsets.only(right: 4),
                          child: Icon(Icons.download_done_rounded, size: 16, color: NkColors.teaLeaf),
                        )
                      else if (downloads.progress.containsKey(track.id))
                        const Padding(
                          padding: EdgeInsets.only(right: 6),
                          child: SizedBox.square(dimension: 12, child: CircularProgressIndicator(strokeWidth: 2)),
                        ),
                      Expanded(
                        child: Text(
                          subtitle ?? '${catalog.creditLine(track)} · ${formatDuration(track.duration)}',
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                          style: text.bodyMedium?.copyWith(color: NkColors.muted),
                        ),
                      ),
                    ],
                  ),
                ],
              ),
            ),
            TrackMenuButton(track: track),
          ],
        ),
      ),
    );

    if (!card) return row;
    return Material(color: NkColors.surface, borderRadius: BorderRadius.circular(16), child: row);
  }
}

class TrackMenuButton extends ConsumerWidget {
  const TrackMenuButton({super.key, required this.track});

  final Track track;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    return IconButton(
      tooltip: 'More options',
      icon: const Icon(Icons.more_vert, color: NkColors.muted),
      onPressed: () => showTrackActions(context, ref, track),
    );
  }
}

Future<void> showTrackActions(BuildContext context, WidgetRef ref, Track track) {
  final catalog = ref.read(catalogProvider).requireValue;
  final controller = ref.read(playerControllerProvider);
  final liked = ref.read(likedSongsProvider).contains(track.id);
  final downloaded = ref.read(downloadsProvider).isDownloaded(track.id);
  final artists = catalog.artistsOf(track);

  void done(String message) {
    Navigator.of(context).pop();
    ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(message)));
  }

  return showModalBottomSheet<void>(
    context: context,
    backgroundColor: NkColors.surface,
    showDragHandle: true,
    builder: (sheetContext) => SafeArea(
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          ListTile(
            leading: TrackArtwork.track(track, size: 48),
            title: Text(track.titleLatin, style: Theme.of(context).textTheme.titleMedium),
            subtitle: Text(catalog.creditLine(track)),
          ),
          const Divider(color: NkColors.outline),
          ListTile(
            leading: const Icon(Icons.playlist_play),
            title: const Text('Play next'),
            onTap: () {
              controller.playNext(track);
              done('Playing next');
            },
          ),
          ListTile(
            leading: const Icon(Icons.queue_music),
            title: const Text('Add to queue'),
            onTap: () {
              controller.addToQueue(track);
              done('Added to queue');
            },
          ),
          ListTile(
            leading: Icon(liked ? Icons.favorite : Icons.favorite_border, color: liked ? NkColors.like : null),
            title: Text(liked ? 'Remove from liked songs' : 'Add to liked songs'),
            onTap: () {
              ref.read(likedSongsProvider.notifier).toggle(track.id);
              done(liked ? 'Removed from liked songs' : 'Added to liked songs');
            },
          ),
          ListTile(
            leading: Icon(downloaded ? Icons.download_done_rounded : Icons.download_rounded,
                color: downloaded ? NkColors.teaLeaf : null),
            title: Text(downloaded ? 'Remove download' : 'Download'),
            onTap: () {
              if (downloaded) {
                ref.read(downloadStoreProvider).remove(track.id);
                done('Download removed');
              } else if (!isSignedIn) {
                Navigator.of(sheetContext).pop();
                context.push('/login?mode=signup');
              } else {
                controller.download([track]).then((problem) => done(problem ?? 'Downloading. Find it in Downloads.'));
              }
            },
          ),
          ListTile(
            leading: const Icon(Icons.flag_outlined),
            title: const Text('Is this your song? Report'),
            onTap: () {
              Navigator.of(sheetContext).pop();
              context.push('/report?track=${track.id}');
            },
          ),
          for (final a in artists)
            ListTile(
              leading: const Icon(Icons.person_outline),
              title: Text('Go to ${a.name}'),
              onTap: () {
                Navigator.of(sheetContext).pop();
                context.push('/artist/${a.id}');
              },
            ),
        ],
      ),
    ),
  );
}