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

import '../../app/theme.dart';
import '../../shared/api_client.dart';
import '../../shared/models/recording_item.dart';
import '../../shared/premium_dialog.dart';
import '../matches/team_providers.dart';

class ArchiveScreen extends ConsumerWidget {
  const ArchiveScreen({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final teamAsync = ref.watch(activeTeamProvider);
    final theme = Theme.of(context);

    return Scaffold(
      appBar: AppBar(
        title: const Text('Replay'),
        leading: IconButton(
          icon: const Icon(Icons.arrow_back),
          onPressed: () => context.go('/matches'),
        ),
      ),
      body: teamAsync.when(
        loading: () => const Center(
          child: CircularProgressIndicator(color: AppTheme.primaryRed),
        ),
        error: (e, _) => Center(child: Text('Errore: $e')),
        data: (team) {
          if (team == null) {
            return const Center(child: Text('Nessuna squadra'));
          }
          if (!team.canUseRecordings) {
            return Center(
              child: Padding(
                padding: const EdgeInsets.all(24),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Text(
                      'Replay disponibili con Premium Light o Full',
                      style: theme.textTheme.titleMedium,
                      textAlign: TextAlign.center,
                    ),
                    const SizedBox(height: 8),
                    Text(
                      'Light: 30 giorni · Full: 90 giorni',
                      style: theme.textTheme.bodyMedium?.copyWith(color: Colors.white70),
                      textAlign: TextAlign.center,
                    ),
                    const SizedBox(height: 16),
                    FilledButton(
                      onPressed: () => showPremiumRequiredDialog(
                        context,
                        message: 'Salva e rivedi le gare con il piano Premium.',
                        billingUrl: team.billingUrl,
                      ),
                      style: FilledButton.styleFrom(
                        backgroundColor: AppTheme.primaryRed,
                      ),
                      child: const Text('Scopri Premium'),
                    ),
                  ],
                ),
              ),
            );
          }

          final recsAsync = ref.watch(recordingsProvider(team.id));
          return recsAsync.when(
            loading: () => const Center(
              child: CircularProgressIndicator(color: AppTheme.primaryRed),
            ),
            error: (e, _) => Center(child: Text('$e')),
            data: (recs) {
              if (recs.isEmpty) {
                return const Center(
                  child: Padding(
                    padding: EdgeInsets.all(24),
                    child: Text(
                      'Nessun replay ancora.\nAl termine delle dirette Premium le registrazioni compaiono qui.',
                      textAlign: TextAlign.center,
                    ),
                  ),
                );
              }
              final df = DateFormat('d MMM yyyy · HH:mm', 'it_IT');
              return ListView.builder(
                padding: const EdgeInsets.all(16),
                itemCount: recs.length,
                itemBuilder: (context, i) {
                  final r = recs[i];
                  final when = r.recordedAt ?? r.endedAt;
                  final subtitle = [
                    if (when != null) df.format(when.toLocal()),
                    if (r.durationLabel != null) r.durationLabel,
                    if (r.viewsLabel != null) r.viewsLabel,
                    r.statusLabel,
                    if (r.expiresAt != null)
                      'Scade ${DateFormat('d MMM', 'it_IT').format(r.expiresAt!.toLocal())}',
                  ].whereType<String>().join(' · ');

                  return Card(
                    color: AppTheme.surface,
                    child: ListTile(
                      leading: r.thumbnailUrl != null
                          ? ClipRRect(
                              borderRadius: BorderRadius.circular(6),
                              child: Image.network(
                                r.thumbnailUrl!,
                                width: 72,
                                height: 40,
                                fit: BoxFit.cover,
                                errorBuilder: (context, error, stackTrace) =>
                                    const Icon(Icons.movie),
                              ),
                            )
                          : const Icon(Icons.movie_outlined, size: 40),
                      title: Text(r.title),
                      subtitle: Text(subtitle),
                      isThreeLine: true,
                      trailing: r.isProcessing
                          ? const SizedBox(
                              width: 24,
                              height: 24,
                              child: CircularProgressIndicator(strokeWidth: 2),
                            )
                          : PopupMenuButton<String>(
                              onSelected: (action) => _onMenuAction(
                                context,
                                ref,
                                action,
                                r,
                                team.canDownloadOnPhone,
                              ),
                              itemBuilder: (_) => [
                                if (r.isReady)
                                  const PopupMenuItem(
                                    value: 'play',
                                    child: Text('Guarda replay'),
                                  ),
                                if (r.isReady && r.downloadEnabled && team.canDownloadOnPhone)
                                  const PopupMenuItem(
                                    value: 'download',
                                    child: Text('Scarica MP4'),
                                  ),
                                if (r.youtubeWatchUrl != null)
                                  const PopupMenuItem(
                                    value: 'youtube',
                                    child: Text('Apri su YouTube'),
                                  ),
                              ],
                            ),
                      onTap: r.isReady ? () => _openReplay(r.replayUrl) : null,
                    ),
                  );
                },
              );
            },
          );
        },
      ),
    );
  }

  Future<void> _openReplay(String? url) async {
    if (url == null) return;
    final uri = Uri.parse(url);
    if (await canLaunchUrl(uri)) {
      await launchUrl(uri, mode: LaunchMode.inAppBrowserView);
    }
  }

  Future<void> _onMenuAction(
    BuildContext context,
    WidgetRef ref,
    String action,
    RecordingItem r,
    bool canDownload,
  ) async {
    switch (action) {
      case 'play':
        await _openReplay(r.replayUrl);
        break;
      case 'download':
        if (!canDownload) return;
        try {
          final url = await ref.read(apiClientProvider).fetchRecordingDownloadUrl(r.id);
          final uri = Uri.parse(url);
          if (await canLaunchUrl(uri)) {
            await launchUrl(uri, mode: LaunchMode.externalApplication);
          }
        } catch (e) {
          if (context.mounted) {
            ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(content: Text('Download: $e')),
            );
          }
        }
        break;
      case 'youtube':
        final yt = r.youtubeWatchUrl;
        if (yt == null) return;
        final uri = Uri.parse(yt);
        if (await canLaunchUrl(uri)) {
          await launchUrl(uri, mode: LaunchMode.externalApplication);
        }
        break;
    }
  }
}