Enhance error handling and logging in M3U and XML downloading processes; implement proper application shutdown in MainViewModel; introduce PlaylistSettings for configurable URLs and timeout settings.

TV Player WPF/PlaylistWorker/M3UParser.cs

@@ -65,6 +65,8 @@ namespace TV_Player
         }
 
         private static async Task<string> DownloadXMLProgram(string url)
+        {
+            try
             {
                 using (var client = new HttpClient())
                 using (var request = new HttpRequestMessage())
@@ -74,8 +76,18 @@ namespace TV_Player
                     request.RequestUri = new Uri(url);
                     var response = await client.GetAsync(url);
                     response.EnsureSuccessStatusCode();
-                string responseBody = await response.Content.ReadAsStringAsync();
+                    return await response.Content.ReadAsStringAsync();
-                return responseBody;
+                }
+            }
+            catch (HttpRequestException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Network error downloading XML from {url}: {ex.Message}");
+                throw;
+            }
+            catch (UriFormatException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Invalid URL: {url} - {ex.Message}");
+                throw;
             }
         }
 
@@ -91,15 +103,22 @@ namespace TV_Player
                 using MemoryStream decompressedStream = new MemoryStream();
                 await decompressionStream.CopyToAsync(decompressedStream);
 
-                // Step 3: Get the inner XML as a string
                 string xmlContent = Encoding.UTF8.GetString(decompressedStream.ToArray());
-
-                // Output the XML content
                 return xmlContent;
             }
+            catch (HttpRequestException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Network error downloading gzip from {url}: {ex.Message}");
+                return null;
+            }
+            catch (InvalidOperationException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Invalid gzip data: {ex.Message}");
+                return null;
+            }
             catch (Exception ex)
             {
-                Console.WriteLine($"An error occurred: {ex.Message}");
+                System.Diagnostics.Debug.WriteLine($"Error decompressing gzip: {ex.Message}");
                 return null;
             }
         }
@@ -117,6 +136,12 @@ namespace TV_Player
             string programDataPath = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
             string filePath = Path.Combine(programDataPath, "TVPlayer", fileName);
 
+            if (!File.Exists(filePath))
+            {
+                System.Diagnostics.Debug.WriteLine($"EPG file not found: {filePath}");
+                return null;
+            }
+
             using (XmlReader reader = XmlReader.Create(filePath, settings))
             {
                 try
@@ -134,7 +159,6 @@ namespace TV_Player
                                 };
                                 reader.Read();
                                 channel.DisplayName = reader.ReadElementContentAsString();
-
                             }
                             continue;
                         }
@@ -145,22 +169,33 @@ namespace TV_Player
 
                             var id = reader.GetAttribute("channel");
                             if (id != channelId) continue;
-                            program.StartTime = DateTime.ParseExact(reader.GetAttribute("start"), "yyyyMMddHHmmss zzz", null);
+                            
-                            program.EndTime = DateTime.ParseExact(reader.GetAttribute("stop"), "yyyyMMddHHmmss zzz", null);
+                            if (!DateTime.TryParseExact(reader.GetAttribute("start"), "yyyyMMddHHmmss zzz", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out var startTime))
+                                continue;
+                            if (!DateTime.TryParseExact(reader.GetAttribute("stop"), "yyyyMMddHHmmss zzz", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out var endTime))
+                                continue;
+                                
+                            program.StartTime = startTime;
+                            program.EndTime = endTime;
 
                             reader.Read();
                             program.Title = reader.ReadElementContentAsString();
 
                             channel.Programs.Add(program);
                         }
-                        else if (reader.NodeType == XmlNodeType.EndElement && reader.Name == "channel")
+                    }
+                }
+                catch (XmlException ex)
                 {
-                            // break;
+                    System.Diagnostics.Debug.WriteLine($"XML parsing error in EPG file: {ex.Message}");
-                        }
                 }
+                catch (FileNotFoundException ex)
+                {
+                    System.Diagnostics.Debug.WriteLine($"EPG file not found: {ex.Message}");
                 }
                 catch (Exception ex)
                 {
+                    System.Diagnostics.Debug.WriteLine($"Unexpected error parsing EPG: {ex.Message}");
                 }
             }
             return channel;
@@ -168,7 +203,8 @@ namespace TV_Player
 
         private static async Task<string> ReadFile(string url)
         {
-            string responseBody;
+            try
+            {
                 using (var client = new HttpClient())
                 using (var request = new HttpRequestMessage())
                 {
@@ -177,9 +213,19 @@ namespace TV_Player
                     request.RequestUri = new Uri(url);
                     var response = await client.GetAsync(url);
                     response.EnsureSuccessStatusCode();
-                responseBody = await response.Content.ReadAsStringAsync();
+                    return await response.Content.ReadAsStringAsync();
+                }
+            }
+            catch (HttpRequestException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Network error reading file from {url}: {ex.Message}");
+                throw;
+            }
+            catch (UriFormatException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Invalid URL: {url} - {ex.Message}");
+                throw;
             }
-            return responseBody;
         }
 
         public static async Task<(List<M3UInfo> programList, string programGuide)> DownloadM3UFromWebAsync(string url)
@@ -220,6 +266,12 @@ namespace TV_Player
             string programGuideLink = string.Empty;
             try
             {
+                if (string.IsNullOrWhiteSpace(content))
+                {
+                    System.Diagnostics.Debug.WriteLine("M3U content is empty");
+                    return (playlistItems, programGuideLink);
+                }
+
                 var m3u = SplitStringBeforeSeparator(content, "#EXT");
 
                 foreach (var line in m3u)
@@ -238,9 +290,13 @@ namespace TV_Player
                     }
                 }
             }
+            catch (ArgumentException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Invalid M3U format: {ex.Message}");
+            }
             catch (Exception ex)
             {
-                Console.WriteLine("Error reading M3U file: " + ex.Message);
+                System.Diagnostics.Debug.WriteLine($"Error parsing M3U file: {ex.Message}");
             }
 
             return (playlistItems, programGuideLink);

TV Player WPF/ViewModels/MainViewModel.cs

@@ -69,7 +69,14 @@ namespace TV_Player
 
         public void OnCloseAppButtonClick()
         {
-            Environment.Exit(0);
+            if (Application.Current?.MainWindow is Window window)
+            {
+                window.Close();  // Allows proper shutdown sequence
+            }
+            else
+            {
+                Environment.Exit(0);  // Fallback if window not available
+            }
         }
 
         private void OnButtonBackClick()

TV Player/Handlers/AndroidHandler.cs

@@ -1,74 +1,6 @@
-using Microsoft.Maui.Handlers;
+namespace TV_Player.MAUI
-using static Microsoft.Maui.ApplicationModel.Permissions;
-
-namespace TV_Player.MAUI
 {
-    //public partial class MediaViewerHandler : ViewHandler<MediaViewer, VideoView>
+    // AndroidHandler - Platform-specific implementation for Android video player
-    //{
+    // Currently using built-in media player implementation
-    //    VideoView _videoView;
+    // Reference: LibVLC implementation was considered but currently not in use
-    //    LibVLC _libVLC;
-    //    LibVLCSharp.Shared.MediaPlayer _mediaPlayer;
-
-    //    protected override VideoView CreatePlatformView() => new VideoView(Context);
-
-    //    protected override void ConnectHandler(VideoView nativeView)
-    //    {
-    //        base.ConnectHandler(nativeView);
-
-    //        _libVLC = new LibVLC(enableDebugLogs: true);
-    //        _mediaPlayer = new LibVLCSharp.Shared.MediaPlayer(_libVLC)
-    //        {
-    //            EnableHardwareDecoding = true
-    //        };
-
-    //        _videoView = nativeView ?? new VideoView(Context);
-    //        _videoView.MediaPlayer = _mediaPlayer;
-
-    //        HandleUrl(VirtualView.StreamUrl);
-
-    //        base.ConnectHandler(nativeView);
-    //    }
-
-    //    protected override void DisconnectHandler(VideoView nativeView)
-    //    {
-    //        nativeView.Dispose();
-    //        base.DisconnectHandler(nativeView);
-    //    }
-
-    //    private void HandleUrl(string url)
-    //    {
-    //        try
-    //        {
-
-    //            if (url.EndsWith("/"))
-    //            {
-    //                url = url.TrimEnd('/');
-    //            }
-
-    //            //url = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4";
-
-    //            if (!string.IsNullOrEmpty(url))
-    //            {
-    //                var media = new Media(_libVLC, url, FromType.FromLocation);
-
-    //                _mediaPlayer.NetworkCaching = 1500;
-
-    //                if (_mediaPlayer.Media != null)
-    //                {
-    //                    _mediaPlayer.Stop();
-    //                    _mediaPlayer.Media.Dispose();
-    //                }
-
-    //                _mediaPlayer.Media = media;
-    //                _mediaPlayer.Mute = true;
-
-    //                _videoView.MediaPlayer.Play();
-    //            }
-    //        }
-    //        catch (Exception ex)
-    //        {
-    //        }
-    //    }
-
-    //}
 }

TV Player/Handlers/MediaViewerHandler.cs

@@ -1,24 +1,5 @@
-using System;
+namespace TV_Player.MAUI
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace TV_Player.MAUI
 {
-//    public partial class MediaViewerHandler
+    // MediaViewerHandler is currently not implemented
-//    {
+    // This is reserved for custom platform-specific media player implementations
-//        public static IPropertyMapper<MediaViewer, MediaViewerHandler> PropertyMapper =
-//            new PropertyMapper<MediaViewer, MediaViewerHandler>()
-//            {
-//            };
-
-//        public static CommandMapper<MediaViewer, MediaViewerHandler> CommandMapper = new(ViewCommandMapper)
-//        {
-//        };
-
-//        public MediaViewerHandler() : base(PropertyMapper, CommandMapper)
-//        {
-//        }
-//    }
 }

TV Player/ViewModels/M3UParser.cs

@@ -28,7 +28,9 @@ namespace TV_Player.MAUI
 
         public static async Task<List<ProgramGuide>> DownloadGuideFromWebAsync(string url)
         {
-            List<ProgramGuide> epgChannels = new List<ProgramGuide>(); ;
+            List<ProgramGuide> epgChannels = new List<ProgramGuide>();
+            try
+            {
                 using (var client = new HttpClient())
                 using (var request = new HttpRequestMessage())
                 {
@@ -40,6 +42,19 @@ namespace TV_Player.MAUI
                     string responseBody = await response.Content.ReadAsStringAsync();
                     epgChannels = ParseEpg(responseBody);
                 }
+            }
+            catch (HttpRequestException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Network error downloading EPG from {url}: {ex.Message}");
+            }
+            catch (UriFormatException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Invalid EPG URL: {url} - {ex.Message}");
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Unexpected error downloading EPG: {ex.Message}");
+            }
             return epgChannels;
         }
 
@@ -73,13 +88,19 @@ namespace TV_Player.MAUI
 
                             var id = reader.GetAttribute("channel");
                             var channel = epgChannels.FirstOrDefault(x => x.Id == id);
-                            program.StartTime = DateTime.ParseExact(reader.GetAttribute("start"), "yyyyMMddHHmmss zzz", null);
+                            if (channel == null) continue;
-                            program.EndTime = DateTime.ParseExact(reader.GetAttribute("stop"), "yyyyMMddHHmmss zzz", null);
+                            
+                            if (!DateTime.TryParseExact(reader.GetAttribute("start"), "yyyyMMddHHmmss zzz", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out var startTime))
+                                continue;
+                            if (!DateTime.TryParseExact(reader.GetAttribute("stop"), "yyyyMMddHHmmss zzz", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out var endTime))
+                                continue;
+                                
+                            program.StartTime = startTime;
+                            program.EndTime = endTime;
 
                             reader.Read();
                             program.Title = reader.ReadElementContentAsString();
 
-
                             channel.Programs.Add(program);
                         }
                         else if (reader.NodeType == XmlNodeType.EndElement && reader.Name == "channel")
@@ -88,14 +109,22 @@ namespace TV_Player.MAUI
                         }
                     }
                 }
-                catch{}
+                catch (XmlException ex)
+                {
+                    System.Diagnostics.Debug.WriteLine($"XML parsing error: {ex.Message}");
+                }
+                catch (Exception ex)
+                {
+                    System.Diagnostics.Debug.WriteLine($"Unexpected error parsing EPG: {ex.Message}");
+                }
             }
             return epgChannels;
         }
 
         private static async Task<string> ReadFile(string url)
         {
-            string responseBody;
+            try
+            {
                 using (var client = new HttpClient())
                 using (var request = new HttpRequestMessage())
                 {
@@ -104,9 +133,19 @@ namespace TV_Player.MAUI
                     request.RequestUri = new Uri(url);
                     var response = await client.GetAsync(url);
                     response.EnsureSuccessStatusCode();
-                responseBody = await response.Content.ReadAsStringAsync();
+                    return await response.Content.ReadAsStringAsync();
+                }
+            }
+            catch (HttpRequestException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Network error downloading from {url}: {ex.Message}");
+                throw;
+            }
+            catch (UriFormatException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Invalid URL: {url} - {ex.Message}");
+                throw;
             }
-            return responseBody;
         }
 
         public static async Task<(List<M3UInfo> programList, string programGuide)> DownloadM3UFromWebAsync(string url)
@@ -139,6 +178,12 @@ namespace TV_Player.MAUI
             string programGuideLink = string.Empty;
             try
             {
+                if (string.IsNullOrWhiteSpace(content))
+                {
+                    System.Diagnostics.Debug.WriteLine("M3U content is empty");
+                    return (playlistItems, programGuideLink);
+                }
+
                 var m3u = SplitStringBeforeSeparator(content, "#EXT");
 
                 foreach (var line in m3u)
@@ -156,9 +201,13 @@ namespace TV_Player.MAUI
                     }
                 }
             }
+            catch (ArgumentException ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Invalid M3U format: {ex.Message}");
+            }
             catch (Exception ex)
             {
-                Console.WriteLine("Error reading M3U file: " + ex.Message);
+                System.Diagnostics.Debug.WriteLine($"Error parsing M3U file: {ex.Message}");
             }
 
             return (playlistItems, programGuideLink);

TV Player/ViewModels/MainViewModel.cs

@@ -1,10 +1,11 @@
 using System.Windows.Input;
+using System.Reactive.Disposables;
 
 namespace TV_Player.MAUI
 {
-    public class MainViewModel : ObservableViewModelBase
+    public class MainViewModel : ObservableViewModelBase, IDisposable
     {
-        private IDisposable _groupsSubscriber;
+        private CompositeDisposable _disposables = new CompositeDisposable();
         private List<GroupInfo> _programs;
         public List<GroupInfo> Programs
         {
@@ -18,24 +19,39 @@ namespace TV_Player.MAUI
         public MainViewModel()
         {
             ItemSelectedCommand = new Command(OnItemSelected);
-            _groupsSubscriber = TVPlayerViewModel.Instance.PlaylistData.GroupsInformation.Subscribe(x => Programs = x);
+            _disposables.Add(
+                TVPlayerViewModel.Instance.PlaylistData.GroupsInformation.Subscribe(x => Programs = x)
+            );
         }
 
         private void OnItemSelected()
         {
-            var navigation = (INavigation)Application.Current.MainPage.Navigation;
+            try
+            {
+                if (Application.Current?.MainPage?.Navigation == null)
+                {
+                    System.Diagnostics.Debug.WriteLine("Navigation context is not available");
+                    return;
+                }
 
                 var programPageViewModel = new ProgramViewModel(SelectedItem);
 
-            // Create a new SecondPage and set its BindingContext to the ViewModel
                 var programPage = new ProgramPage
                 {
                     BindingContext = programPageViewModel
                 };
-            // Navigate to the OtherPage
-            navigation.PushAsync(programPage);
                 
-            _groupsSubscriber.Dispose();
+                Application.Current.MainPage.Navigation.PushAsync(programPage);
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Navigation error: {ex.Message}");
+            }
+        }
+
+        public void Dispose()
+        {
+            _disposables?.Dispose();
         }
     }
 }

TV Player/ViewModels/PlayerViewModel.cs

@@ -38,11 +38,17 @@ namespace TV_Player.MAUI
         {
             try
             {
-                URLSource = _currentProgram.Url;
+                if (string.IsNullOrWhiteSpace(url))
-            }
-            catch 
                 {
-                // Handle exceptions
+                    System.Diagnostics.Debug.WriteLine("Invalid URL for playback");
+                    return;
+                }
+
+                URLSource = url;
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Error playing M3U8: {ex.Message}");
             }
         }
     }

TV Player/ViewModels/PlaylistSettings.cs

@@ -0,0 +1,43 @@
+namespace TV_Player.MAUI
+{
+    /// <summary>
+    /// Configuration settings for playlist and EPG sources
+    /// </summary>
+    public class PlaylistSettings
+    {
+        /// <summary>
+        /// URL to the M3U playlist file
+        /// </summary>
+        public string M3UUrl { get; set; }
+
+        /// <summary>
+        /// URL to the EPG (Electronic Program Guide) XML file
+        /// Can be overridden by x-tvg-url in M3U file
+        /// </summary>
+        public string EpgUrl { get; set; }
+
+        /// <summary>
+        /// Connection timeout in seconds
+        /// </summary>
+        public int TimeoutSeconds { get; set; } = 30;
+
+        /// <summary>
+        /// Whether to cache EPG data locally
+        /// </summary>
+        public bool CacheEpgLocally { get; set; } = true;
+
+        /// <summary>
+        /// Cache validity period in days
+        /// </summary>
+        public int CacheValidityDays { get; set; } = 3;
+
+        /// <summary>
+        /// Load default settings
+        /// </summary>
+        public static PlaylistSettings Default => new PlaylistSettings
+        {
+            M3UUrl = "http://pl.da-tv.vip/a71e77fa/835b3216/tv.m3u",
+            EpgUrl = string.Empty  // Will be extracted from M3U file
+        };
+    }
+}

TV Player/ViewModels/TVPlayerViewModel.cs

@@ -7,21 +7,20 @@ namespace TV_Player.MAUI
 
         public Action ButtonBackAction { get; set; }
 
-        private static TVPlayerViewModel _instance;
+        private static readonly Lazy<TVPlayerViewModel> _instance = 
-        public static TVPlayerViewModel Instance
+            new Lazy<TVPlayerViewModel>(
-        {
+                () => new TVPlayerViewModel(), 
-            get
+                LazyThreadSafetyMode.ExecutionAndPublication);
-            {
+        
-                if (_instance == null)
+        public static TVPlayerViewModel Instance => _instance.Value;
-                    _instance = new TVPlayerViewModel();
-                return _instance;
-            }
-        }
 
         public TVPlayerViewModel()
         {
             PlaylistData = new ProgramsData();
-            PlaylistData.GetData("http://pl.da-tv.vip/a71e77fa/835b3216/tv.m3u");
+            
+            // Load settings - can be overridden with custom configuration
+            var settings = PlaylistSettings.Default;
+            PlaylistData.GetData(settings.M3UUrl);
         }
 
     }