import 'package:flutter/material.dart';
import 'package:video_player/video_player.dart';

class PlayerPage extends StatefulWidget {
  final String title;
  final String rtmpUrl;

  const PlayerPage({Key? key, required this.title, required this.rtmpUrl}) : super(key: key);

  @override
  _PlayerPageState createState() => _PlayerPageState();
}

class _PlayerPageState extends State<PlayerPage> {
  late VideoPlayerController _controller;
  bool _isError = false;
  String? _errorMessage;

  @override
  void initState() {
    super.initState();
    _initializePlayer();
  }

  void _initializePlayer() async {
    print("[INFO] Playing stream: ${widget.rtmpUrl}");
    _controller = VideoPlayerController.networkUrl(Uri.parse(widget.rtmpUrl));

    try {
      await _controller.initialize();
      _controller.play();
      setState(() {}); // 更新状态以渲染画面
    } catch (e) {
      print("[ERROR] Player initialization failed: $e");
      setState(() {
        _isError = true;
        _errorMessage = e.toString();
      });
    }
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      appBar: AppBar(
        title: Text(widget.title),
        backgroundColor: Colors.transparent,
        foregroundColor: Colors.white,
      ),
      body: Center(
        child: _isError
            ? Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Icon(Icons.error_outline, color: Colors.red, size: 60),
                  SizedBox(height: 16),
                  Text(
                    "Failed to load stream.",
                    style: TextStyle(color: Colors.white, fontSize: 18),
                  ),
                  SizedBox(height: 8),
                  Text(_errorMessage ?? "Unknown error", style: TextStyle(color: Colors.grey)),
                  TextButton(onPressed: () => Navigator.pop(context), child: Text("Go Back")),
                ],
              )
            : _controller.value.isInitialized
                ? AspectRatio(
                    aspectRatio: _controller.value.aspectRatio,
                    child: VideoPlayer(_controller),
                  )
                : CircularProgressIndicator(color: Colors.white),
      ),
    );
  }
}