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xtremflow/lib/features/iptv/screens/player_screen.dart
T

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Dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'dart:html' as html;
import 'dart:ui_web' as ui_web;
import 'dart:convert';
import 'dart:async';
import 'package:http/http.dart' as http;
import '../providers/xtream_provider.dart';
import '../providers/playback_positions_provider.dart';
import '../providers/settings_provider.dart';
import '../widgets/epg_overlay.dart';
import '../../../core/models/playlist_config.dart';
import '../../../core/models/iptv_models.dart';
import '../../../core/widgets/themed_loading_screen.dart';
/// Stream type enum for player
enum StreamType { live, vod, series }
/// Video player screen using FFmpeg transcoding for live streams
class PlayerScreen extends ConsumerStatefulWidget {
final String streamId;
final String title;
final StreamType streamType;
final String containerExtension;
final PlaylistConfig playlist;
final List<Channel>? channels;
final int initialIndex;
const PlayerScreen({
super.key,
required this.streamId,
required this.title,
required this.playlist,
this.streamType = StreamType.live,
this.containerExtension = 'mp4',
this.channels,
this.initialIndex = 0,
});
@override
ConsumerState<PlayerScreen> createState() => _PlayerScreenState();
}
class _PlayerScreenState extends ConsumerState<PlayerScreen> {
String? _hlsUrl;
String? _errorMessage;
String? _statusMessage;
late String _viewId;
late String _contentId;
late int _currentIndex;
bool _isInitialized = false;
bool _isLoading = true;
bool _showControls = false;
Timer? _controlsTimer;
StreamSubscription? _messageSubscription;
@override
void initState() {
super.initState();
_currentIndex = widget.initialIndex;
_viewId = 'iptv-player-${widget.streamId}-${DateTime.now().millisecondsSinceEpoch}';
_initializePlayer();
_setupMessageListener();
}
void _setupMessageListener() {
// Listen for postMessage from player.html iframe
_messageSubscription = html.window.onMessage.listen((event) {
try {
final data = event.data;
if (data is Map) {
final type = data['type'];
if (type == 'playback_position' && _contentId.isNotEmpty) {
final currentTime = (data['currentTime'] as num).toDouble();
final duration = (data['duration'] as num).toDouble();
ref.read(playbackPositionsProvider.notifier).savePosition(
_contentId, currentTime, duration
);
} else if (type == 'playback_ended' && _contentId.isNotEmpty) {
// Clear position when video ends
ref.read(playbackPositionsProvider.notifier).clearPosition(_contentId);
}
}
} catch (e) {
debugPrint('Error handling postMessage: $e');
}
});
}
@override
void dispose() {
_messageSubscription?.cancel();
_controlsTimer?.cancel();
super.dispose();
}
void _hideControls() {
if (!mounted) return;
setState(() {
_showControls = false;
});
}
void _onHover() {
if (!_showControls) {
setState(() {
_showControls = true;
});
}
_controlsTimer?.cancel();
_controlsTimer = Timer(const Duration(seconds: 3), _hideControls);
}
void _playNext() {
if (widget.channels == null || widget.channels!.isEmpty) return;
final nextIndex = (_currentIndex + 1) % widget.channels!.length;
_switchChannel(nextIndex);
}
void _playPrevious() {
if (widget.channels == null || widget.channels!.isEmpty) return;
final prevIndex = (_currentIndex - 1 + widget.channels!.length) % widget.channels!.length;
_switchChannel(prevIndex);
}
void _switchChannel(int index) {
setState(() {
_currentIndex = index;
_isLoading = true;
_isInitialized = false;
_errorMessage = null;
});
// Give UI a moment to clear before re-initializing
Future.microtask(() => _initializePlayer());
}
Future<void> _initializePlayer() async {
try {
setState(() {
_isLoading = true;
_statusMessage = 'Validating playlist...';
});
// Validate playlist before proceeding
if (widget.playlist.dns.isEmpty ||
widget.playlist.username.isEmpty ||
widget.playlist.password.isEmpty) {
throw Exception('Invalid playlist configuration: missing credentials');
}
final xtreamService = ref.read(xtreamServiceProvider(widget.playlist));
xtreamService.setPlaylist(widget.playlist);
// Determine effective Stream ID (from navigation or initial)
final currentStreamId = widget.channels != null && widget.channels!.isNotEmpty
? widget.channels![_currentIndex].streamId
: widget.streamId;
// Set content ID for resume features
_contentId = widget.streamType == StreamType.live
? ''
: '${widget.streamType.name}_$currentStreamId';
String hlsUrl;
if (widget.streamType == StreamType.live) {
// For live streams, use FFmpeg transcoding
setState(() {
_statusMessage = 'Starting stream transcoding...';
});
// Build the FFmpeg endpoint URL with streaming settings
final settings = ref.read(iptvSettingsProvider);
final baseUrl = html.window.location.origin;
final iptvUrl = '${widget.playlist.dns}/live/${widget.playlist.username}/${widget.playlist.password}/$currentStreamId.ts';
final encodedUrl = Uri.encodeComponent(iptvUrl);
// Map enum values to string params
final qualityParam = switch (settings.streamQuality) {
StreamQuality.low => 'low',
StreamQuality.medium => 'medium',
StreamQuality.high => 'high',
};
final bufferParam = switch (settings.bufferSize) {
BufferSize.low => 'low',
BufferSize.medium => 'medium',
BufferSize.high => 'high',
};
final timeoutParam = switch (settings.connectionTimeout) {
ConnectionTimeout.short => 'short',
ConnectionTimeout.medium => 'medium',
ConnectionTimeout.long => 'long',
};
final modeParam = settings.modeString; // direct, transcode, or auto
// Construct the stream URL directly using MPEG-TS format
final streamEndpoint = '$baseUrl/api/stream/$currentStreamId?url=$encodedUrl&quality=$qualityParam&buffer=$bufferParam&timeout=$timeoutParam&mode=$modeParam&ext=.ts';
debugPrint('PlayerScreen: Starting Direct Stream: $streamEndpoint');
hlsUrl = streamEndpoint;
} else {
// For VOD and Series - use direct proxy streaming with Range support
final streamUrl = widget.streamType == StreamType.vod
? xtreamService.getVodStreamUrl(currentStreamId, widget.containerExtension)
: xtreamService.getSeriesStreamUrl(currentStreamId, widget.containerExtension);
hlsUrl = streamUrl;
debugPrint('PlayerScreen: Direct playback URL: $hlsUrl');
}
setState(() {
_statusMessage = 'Loading player...';
});
// Get resume position for VOD/Series
double startTime = 0;
if (widget.streamType != StreamType.live && _contentId.isNotEmpty) {
final positions = ref.read(playbackPositionsProvider);
startTime = positions.getPosition(_contentId);
if (startTime > 0) {
debugPrint('PlayerScreen: Resuming from ${startTime.toStringAsFixed(0)}s');
}
}
// Register the HTML view with an iframe pointing to our player.html
final encodedHlsUrl = Uri.encodeComponent(hlsUrl);
final playerUrl = startTime > 0
? 'player.html?url=$encodedHlsUrl&startTime=${startTime.toStringAsFixed(0)}'
: 'player.html?url=$encodedHlsUrl';
debugPrint('PlayerScreen: Player URL: $playerUrl');
// Register platform view factory
// ignore: undefined_prefixed_name
ui_web.platformViewRegistry.registerViewFactory(
_viewId,
(int viewId) {
final iframe = html.IFrameElement()
..src = playerUrl
..style.border = 'none'
..style.width = '100%'
..style.height = '100%'
..style.height = '100%'
..allow = 'autoplay; fullscreen; picture-in-picture';
return iframe;
},
);
setState(() {
_hlsUrl = hlsUrl;
_isInitialized = true;
_isLoading = false;
});
} catch (e) {
debugPrint('PlayerScreen error: $e');
setState(() {
_isLoading = false;
_errorMessage = e.toString();
});
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: _showControls ? AppBar(
title: Text(widget.channels != null && widget.channels!.isNotEmpty
? widget.channels![_currentIndex].name
: widget.title),
backgroundColor: Colors.transparent,
foregroundColor: Colors.white,
elevation: 0,
) : null,
extendBodyBehindAppBar: true,
backgroundColor: Colors.black,
body: MouseRegion(
onHover: (_) => _onHover(),
child: _errorMessage != null
? Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Icon(Icons.error_outline, size: 64, color: Colors.red),
const SizedBox(height: 16),
const Text('Failed to load stream', style: TextStyle(color: Colors.white, fontSize: 18)),
const SizedBox(height: 8),
Text(_errorMessage!, style: const TextStyle(color: Colors.white70)),
const SizedBox(height: 24),
ElevatedButton(
onPressed: () {
setState(() {
_errorMessage = null;
_isLoading = true;
});
_initializePlayer();
},
child: const Text('Retry'),
),
],
),
)
: _isLoading
? const ThemedLoading()
: !_isInitialized
? const ThemedLoading()
: Stack(
children: [
// HTML5 video player via iframe
HtmlElementView(viewType: _viewId),
// Hover Controls Layer
if (_showControls) ...[
// Previous Channel (Left Zone)
if (widget.channels != null && widget.channels!.isNotEmpty)
Positioned(
left: 0,
top: 0,
bottom: 0,
width: 100,
child: InkWell(
onTap: _playPrevious,
hoverColor: Colors.black12,
child: const Center(
child: Icon(Icons.arrow_back_ios, color: Colors.white, size: 48),
),
),
),
// Next Channel (Right Zone)
if (widget.channels != null && widget.channels!.isNotEmpty)
Positioned(
right: 0,
top: 0,
bottom: 0,
width: 100,
child: InkWell(
onTap: _playNext,
hoverColor: Colors.black12,
child: const Center(
child: Icon(Icons.arrow_forward_ios, color: Colors.white, size: 48),
),
),
),
// EPG Overlay
if (widget.streamType == StreamType.live)
Positioned(
bottom: 0,
left: 0,
right: 0,
child: Container(
padding: const EdgeInsets.only(bottom: 20),
decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment.bottomCenter,
end: Alignment.topCenter,
colors: [Colors.black87, Colors.transparent],
),
),
child: EpgOverlay(
streamId: widget.channels != null
? widget.channels![_currentIndex].streamId
: widget.streamId,
playlist: widget.playlist,
),
),
),
],
],
),
),
);
}
}