import 'package:flutter/material.dart';
import 'package:get/get.dart';
import '../controllers/qqmusic_controller.dart';
import '../models/song_model.dart';

class QQMusicView extends GetView<QQMusicController> {
  const QQMusicView({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('QQ音乐'),
        actions: [
          Obx(() => controller.isLoggedIn.value
              ? IconButton(
                  icon: const Icon(Icons.logout),
                  onPressed: controller.logout,
                )
              : IconButton(
                  icon: const Icon(Icons.login),
                  onPressed: controller.login,
                )),
        ],
      ),
      body: Obx(() {
        if (!controller.isLoggedIn.value) {
          return _buildLoginView();
        }
        return _buildMainView();
      }),
      bottomNavigationBar: Obx(() {
        if (controller.currentSong.value != null) {
          return _buildMiniPlayer();
        }
        return const SizedBox.shrink();
      }),
    );
  }

  Widget _buildLoginView() {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          const Icon(
            Icons.music_note,
            size: 100,
            color: Colors.blue,
          ),
          const SizedBox(height: 20),
          const Text(
            '请先登录QQ音乐',
            style: TextStyle(fontSize: 18),
          ),
          const SizedBox(height: 20),
          ElevatedButton(
            onPressed: controller.login,
            child: const Text('登录QQ音乐'),
          ),
        ],
      ),
    );
  }

  Widget _buildMainView() {
    return Column(
      children: [
        _buildSearchBar(),
        Expanded(
          child: Obx(() {
            if (controller.isSearching.value) {
              return const Center(child: CircularProgressIndicator());
            }
            if (controller.searchResults.isEmpty) {
              return const Center(
                child: Text('搜索歌曲开始您的音乐之旅'),
              );
            }
            return _buildSearchResults();
          }),
        ),
      ],
    );
  }

  Widget _buildSearchBar() {
    return Container(
      padding: const EdgeInsets.all(16),
      child: TextField(
        decoration: const InputDecoration(
          hintText: '搜索歌曲、歌手、专辑',
          prefixIcon: Icon(Icons.search),
          border: OutlineInputBorder(),
        ),
        onSubmitted: controller.searchSongs,
      ),
    );
  }

  Widget _buildSearchResults() {
    return ListView.builder(
      itemCount: controller.searchResults.length,
      itemBuilder: (context, index) {
        final song = controller.searchResults[index];
        return _buildSongItem(song);
      },
    );
  }

  Widget _buildSongItem(SongModel song) {
    return ListTile(
      leading: Container(
        width: 50,
        height: 50,
        decoration: BoxDecoration(
          color: Colors.grey[300],
          borderRadius: BorderRadius.circular(8),
        ),
        child: song.albumPic != null
            ? ClipRRect(
                borderRadius: BorderRadius.circular(8),
                child: Image.network(
                  song.albumPic!,
                  fit: BoxFit.cover,
                  errorBuilder: (context, error, stackTrace) {
                    return const Icon(Icons.music_note);
                  },
                ),
              )
            : const Icon(Icons.music_note),
      ),
      title: Text(
        song.name,
        maxLines: 1,
        overflow: TextOverflow.ellipsis,
      ),
      subtitle: Text(
        '${song.artist} • ${song.album}',
        maxLines: 1,
        overflow: TextOverflow.ellipsis,
      ),
      trailing: Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          Text(song.durationText),
          const SizedBox(width: 8),
          IconButton(
            icon: const Icon(Icons.play_arrow),
            onPressed: () => controller.playSong(
              song,
              songList: controller.searchResults,
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildMiniPlayer() {
    return Obx(() {
      final song = controller.currentSong.value!;
      return Container(
        height: 80,
        decoration: BoxDecoration(
          color: Colors.white,
          boxShadow: [
            BoxShadow(
              color: Colors.black.withOpacity(0.1),
              blurRadius: 4,
              offset: const Offset(0, -2),
            ),
          ],
        ),
        child: Column(
          children: [
            // 进度条
            Obx(() => LinearProgressIndicator(
                  value: controller.totalDuration.value > 0
                      ? controller.currentPosition.value /
                          controller.totalDuration.value
                      : 0,
                  backgroundColor: Colors.grey[300],
                  valueColor: const AlwaysStoppedAnimation<Color>(Colors.blue),
                )),
            Expanded(
              child: Padding(
                padding: const EdgeInsets.symmetric(horizontal: 16),
                child: Row(
                  children: [
                    // 歌曲信息
                    Expanded(
                      child: Column(
                        mainAxisAlignment: MainAxisAlignment.center,
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Text(
                            song.name,
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                            style: const TextStyle(fontWeight: FontWeight.bold),
                          ),
                          Text(
                            song.artist,
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                            style: TextStyle(color: Colors.grey[600]),
                          ),
                        ],
                      ),
                    ),
                    // 控制按钮
                    Row(
                      children: [
                        IconButton(
                          icon: const Icon(Icons.skip_previous),
                          onPressed: controller.previousSong,
                        ),
                        Obx(() => IconButton(
                              icon: Icon(
                                controller.isPlaying.value
                                    ? Icons.pause
                                    : Icons.play_arrow,
                              ),
                              onPressed: controller.togglePlayPause,
                            )),
                        IconButton(
                          icon: const Icon(Icons.skip_next),
                          onPressed: controller.nextSong,
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      );
    });
  }
}