import 'package:chewie/chewie.dart';
import 'package:didvan/config/design_config.dart';
import 'package:didvan/models/didvan_plus_model.dart';
import 'package:didvan/services/network/request.dart';
import 'package:didvan/services/network/request_helper.dart';
import 'package:didvan/views/widgets/didvan/text.dart';
import 'package:didvan/views/widgets/video/primary_controls.dart';
import 'package:flutter/material.dart';
import 'package:video_player/video_player.dart';

class DidvanPlusVideoPlayer extends StatefulWidget {
  final DidvanPlusModel video;

  const DidvanPlusVideoPlayer({super.key, required this.video});

  @override
  State<DidvanPlusVideoPlayer> createState() => _DidvanPlusVideoPlayerState();
}

class _DidvanPlusVideoPlayerState extends State<DidvanPlusVideoPlayer> {
  late VideoPlayerController _videoController;
  ChewieController? _chewieController;
  bool _isInitialized = false;

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

  void _initializeVideo() {
    debugPrint('🎥 Didvan Plus Video - Original File: ${widget.video.file}');
    debugPrint('🎥 Didvan Plus Video - Original Image: ${widget.video.image}');
    
    // بررسی اینکه آیا لینک از قبل کامل است یا نه
    final bool fileHasHttp = widget.video.file.startsWith('http');
    final bool fileHasBaseUrl = widget.video.file.contains(RequestHelper.baseUrl);
    
    debugPrint('🎥 File has HTTP: $fileHasHttp');
    debugPrint('🎥 File has BaseURL: $fileHasBaseUrl');
    
    // برای دیدوان پلاس، لینک مستقیم از سرور استفاده می‌شود
    final videoUrl = widget.video.file.startsWith('http') || widget.video.file.contains(RequestHelper.baseUrl)
        ? widget.video.file
        : '${RequestHelper.baseUrl}${widget.video.file}';
    
    debugPrint('🎥 Video URL before token: $videoUrl');
    
    // فقط به لینک‌های baseUrl سرور accessToken اضافه می‌شود، نه لینک‌های external مثل S3
    final bool needsToken = videoUrl.contains(RequestHelper.baseUrl);
    debugPrint('🎥 Needs access token: $needsToken');
    
    final String fullUrl;
    if (needsToken) {
      final separator = videoUrl.contains('?') ? '&' : '?';
      fullUrl = '$videoUrl${separator}accessToken=${RequestService.token}';
    } else {
      fullUrl = videoUrl; // لینک‌های S3 نیازی به token ندارند
    }

    debugPrint('🎥 Didvan Plus Video - Final URL: $fullUrl');

    // برای S3 signed URLs نباید Authorization header اضافه کنیم
    if (needsToken) {
      _videoController = VideoPlayerController.networkUrl(
        Uri.parse(fullUrl),
        httpHeaders: {
          'Authorization': 'Bearer ${RequestService.token}',
        },
      );
    } else {
      // برای S3 بدون Authorization header
      _videoController = VideoPlayerController.networkUrl(
        Uri.parse(fullUrl),
      );
    }
    
    _videoController.initialize().then((_) {
        debugPrint('✅ Video initialized successfully');
        setState(() {
          _chewieController = ChewieController(
            videoPlayerController: _videoController,
            autoPlay: true,
            looping: false,
            allowFullScreen: true,
            allowMuting: true,
            showControls: true,
            customControls: const PrimaryControls(),
            materialProgressColors: ChewieProgressColors(
              playedColor: DesignConfig.isDark
                  ? const Color.fromARGB(255, 0, 125, 166)
                  : const Color.fromARGB(255, 0, 89, 119),
              handleColor: DesignConfig.isDark
                  ? const Color.fromARGB(255, 0, 125, 166)
                  : const Color.fromARGB(255, 0, 89, 119),
              backgroundColor: Colors.grey,
              bufferedColor: Colors.grey.shade300,
            ),
            placeholder: Container(
              color: Colors.black,
              child: Center(
                child: Image.network(
                  widget.video.image.startsWith('http') || widget.video.image.contains(RequestHelper.baseUrl)
                      ? widget.video.image
                      : '${RequestHelper.baseUrl}${widget.video.image}',
                  fit: BoxFit.cover,
                ),
              ),
            ),
          );
          _isInitialized = true;
        });
      }).catchError((error) {
        debugPrint('❌ Video initialization error: $error');
      });
  }

  @override
  void dispose() {
    _videoController.dispose();
    _chewieController?.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: true,
      backgroundColor: Colors.black,
      body: SafeArea(
        child: Column(
          children: [
            Container(
              padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
              color: Colors.black,
              child: Row(
                children: [
                  IconButton(
                    icon: const Icon(Icons.close, color: Colors.white),
                    onPressed: () => Navigator.of(context).pop(),
                  ),
                  Expanded(
                    child: Text(
                      widget.video.title,
                      style: const TextStyle(
                        color: Colors.white,
                        fontSize: 16,
                        fontWeight: FontWeight.w600,
                      ),
                      maxLines: 1,
                      overflow: TextOverflow.ellipsis,
                    ),
                  ),
                ],
              ),
            ),
            Expanded(
              child: Center(
                child: _isInitialized && _chewieController != null
                    ? Chewie(controller: _chewieController!)
                    : Container(
                        color: Colors.black,
                        child: Stack(
                          fit: StackFit.expand,
                          children: [
                            Image.network(
                              widget.video.image.startsWith('http') || widget.video.image.contains(RequestHelper.baseUrl)
                                  ? widget.video.image
                                  : '${RequestHelper.baseUrl}${widget.video.image}',
                              fit: BoxFit.fitWidth,
                            ),
                            const Center(
                              child: CircularProgressIndicator(
                                color: Colors.white,
                              ),
                            ),
                          ],
                        ),
                      ),
              ),
            ),
            Container(
              width: double.infinity,
              padding: const EdgeInsets.all(16),
              color:
                  DesignConfig.isDark ? const Color(0xFF1E1E1E) : Colors.white,
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisSize: MainAxisSize.min,
                children: [
                  DidvanText(
                    widget.video.title,
                    fontSize: 18,
                    fontWeight: FontWeight.bold,
                  ),
                  const SizedBox(height: 8),
                  DidvanText(
                    widget.video.description,
                    fontSize: 14,
                    color: Colors.grey,
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}