import 'package:flutter/material.dart';

import '../data/models/models.dart';
import '../theme/wise_tokens.dart';
import 'app_card.dart';

class PlayerStateModel {
  const PlayerStateModel({
    this.audioId = '',
    this.reportId = '',
    this.title = '',
    this.durationSec = 0,
    this.positionSec = 0,
    this.playing = false,
    this.speed = 1.0,
  });

  final String audioId;
  final String reportId;
  final String title;
  final int durationSec;
  final int positionSec;
  final bool playing;
  final double speed;

  bool get hasAudio => audioId.isNotEmpty;

  PlayerStateModel copyWith({
    String? audioId,
    String? reportId,
    String? title,
    int? durationSec,
    int? positionSec,
    bool? playing,
    double? speed,
  }) {
    return PlayerStateModel(
      audioId: audioId ?? this.audioId,
      reportId: reportId ?? this.reportId,
      title: title ?? this.title,
      durationSec: durationSec ?? this.durationSec,
      positionSec: positionSec ?? this.positionSec,
      playing: playing ?? this.playing,
      speed: speed ?? this.speed,
    );
  }
}

class MiniPlayer extends StatelessWidget {
  const MiniPlayer({
    required this.player,
    required this.onToggle,
    super.key,
  });

  final PlayerStateModel player;
  final VoidCallback onToggle;

  @override
  Widget build(BuildContext context) {
    if (!player.hasAudio) return const SizedBox.shrink();
    final ratio = player.durationSec == 0 ? 0.0 : player.positionSec / player.durationSec;
    return Padding(
      padding: const EdgeInsets.fromLTRB(12, 0, 12, 8),
      child: AppCard(
        padding: const EdgeInsets.all(12),
        color: WiseColors.primary,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              children: [
                IconButton.filled(
                  onPressed: onToggle,
                  icon: Icon(player.playing ? Icons.pause : Icons.play_arrow),
                  style: IconButton.styleFrom(
                    backgroundColor: WiseColors.secondary,
                    foregroundColor: WiseColors.primary,
                  ),
                ),
                const SizedBox(width: WiseSpacing.x2),
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        player.title,
                        maxLines: 1,
                        overflow: TextOverflow.ellipsis,
                        style: const TextStyle(color: Colors.white, fontWeight: FontWeight.w800),
                      ),
                      Text(
                        '${formatDuration(player.positionSec)} / ${formatDuration(player.durationSec)} · ${player.speed.toStringAsFixed(1)}x',
                        style: const TextStyle(color: Color(0xCCFFFFFF), fontSize: 12),
                      ),
                    ],
                  ),
                ),
              ],
            ),
            const SizedBox(height: WiseSpacing.x2),
            LinearProgressIndicator(
              value: ratio.clamp(0, 1),
              minHeight: 4,
              backgroundColor: const Color(0x33FFFFFF),
              color: WiseColors.secondary,
            ),
          ],
        ),
      ),
    );
  }
}

class PlayerCard extends StatelessWidget {
  const PlayerCard({
    required this.title,
    required this.durationSec,
    required this.player,
    required this.onStart,
    required this.onToggle,
    required this.onSeek,
    required this.onSpeed,
    super.key,
  });

  final String title;
  final int durationSec;
  final PlayerStateModel player;
  final VoidCallback onStart;
  final VoidCallback onToggle;
  final void Function(int delta) onSeek;
  final VoidCallback onSpeed;

  @override
  Widget build(BuildContext context) {
    final active = player.hasAudio && player.title == title;
    final position = active ? player.positionSec : 0;
    final ratio = durationSec == 0 ? 0.0 : position / durationSec;
    return AppCard(
      color: WiseColors.secondary200,
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text('音频解读', style: Theme.of(context).textTheme.titleMedium),
          const SizedBox(height: WiseSpacing.x2),
          Text(title, style: Theme.of(context).textTheme.bodyMedium),
          const SizedBox(height: WiseSpacing.x3),
          LinearProgressIndicator(
            value: ratio.clamp(0, 1),
            minHeight: 6,
            backgroundColor: Colors.white,
            color: WiseColors.accent,
          ),
          const SizedBox(height: WiseSpacing.x2),
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Text(formatDuration(position), style: Theme.of(context).textTheme.bodySmall),
              Text(formatDuration(durationSec), style: Theme.of(context).textTheme.bodySmall),
            ],
          ),
          const SizedBox(height: WiseSpacing.x3),
          Row(
            children: [
              IconButton.outlined(onPressed: () => onSeek(-15), icon: const Icon(Icons.replay_10)),
              IconButton.filled(
                onPressed: active ? onToggle : onStart,
                icon: Icon(active && player.playing ? Icons.pause : Icons.play_arrow),
                style: IconButton.styleFrom(
                  backgroundColor: WiseColors.primary,
                  foregroundColor: Colors.white,
                ),
              ),
              IconButton.outlined(onPressed: () => onSeek(15), icon: const Icon(Icons.forward_10)),
              const Spacer(),
              TextButton(onPressed: onSpeed, child: Text('${player.speed.toStringAsFixed(1)}x')),
            ],
          ),
          Text(
            '真实音频流待 /audio/{id}/stream 接入，当前为本地进度占位。',
            style: Theme.of(context).textTheme.bodySmall,
          ),
        ],
      ),
    );
  }
}