Error handling system added

ViewModels/Basic/ErrorViewModel.cs

@@ -0,0 +1,69 @@
+using Avalonia.Controls;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using GazpromApp.Enums;
+using GazpromApp.Models;
+
+namespace GazpromApp.ViewModels;
+
+public partial class ErrorViewModel : ViewModelBase     
+{
+    [ObservableProperty]
+    private string? _title;
+    
+    [ObservableProperty]
+    private string? _message;
+
+    [RelayCommand]
+    private static void Ok(Window w)
+    {
+        w.Close();
+    }
+    
+    private ErrorSeverity severity;
+    
+    // Visual and other properties
+    [ObservableProperty] private bool _isErrorVisible;
+    [ObservableProperty] private bool _isWarnVisible;
+    [ObservableProperty] private bool _isInfoVisible;
+
+    public ErrorViewModel()
+    {
+        IsInfoVisible = true;
+        Title = "Тест ошибки";
+        Message = "Сообщение ошибки";
+    }
+
+    public ErrorViewModel(Error error)
+    {
+        Title =  error.Title;
+        Message = error.Message;
+        severity = error.Severity;
+        switch (error.Severity)
+        {
+            case ErrorSeverity.Error:
+                IsErrorVisible = true;
+                break;
+            case ErrorSeverity.Warning:
+                IsWarnVisible = true;
+                break;
+            case ErrorSeverity.Message:
+                IsInfoVisible = true;
+                break;
+            default:
+                IsInfoVisible = true;
+                break;
+        }
+    }
+
+    public Error GetError()
+    {
+        Error error = new Error()
+        {
+            Title = Title,
+            Message = Message,
+            Severity = severity,
+        };
+        return error;
+    }
+}

ViewModels/EditEquipmentDialogViewModel.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using System.Web;
 using Avalonia.Controls;
@@ -7,6 +8,7 @@ using Avalonia.Platform.Storage;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using CommunityToolkit.Mvvm.Messaging;
+using GazpromApp.Enums;
 using GazpromApp.Messages;
 using GazpromApp.Models;
 
@@ -57,7 +59,22 @@ public partial class EditEquipmentDialogViewModel : ViewModelBase
         
         IsImageSelected = files.Count > 0;
         
-        Image = IsImageSelected ? new ImageViewModel(new Models.Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(files[0].Path.AbsolutePath)) } : null;
+        try
+        {
+            Image = IsImageSelected ? new ImageViewModel(new Models.Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(files[0].Path.AbsolutePath)) } : null;   
+        }
+        catch (ArgumentException)
+        {
+            Error error = new Error()
+            {
+                Title = "Ошибка обработки картинки",
+                Message = "Картинка не была добавлена",
+                Severity = ErrorSeverity.Error,
+            };
+            _ = await WeakReferenceMessenger.Default.Send(new ErrorMessage(new ErrorViewModel(error)));
+            
+            IsImageSelected = false;
+        }
     }
     
     [RelayCommand]

ViewModels/EditPointDialogViewModel.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Diagnostics;
 using System.Linq;
@@ -10,6 +11,7 @@ using Avalonia.Platform.Storage;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using CommunityToolkit.Mvvm.Messaging;
+using GazpromApp.Enums;
 using GazpromApp.Messages;
 using GazpromApp.Models;
 using GazpromApp.Views;
@@ -59,7 +61,22 @@ public partial class EditPointDialogViewModel : ViewModelBase
             FileTypeFilter = [FilePickerFileTypes.ImageAll],
         });
         foreach (var file in files)
-            Images.Add(new ImageViewModel(new Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(file.Path.AbsolutePath) ) });
+        {
+            try
+            {
+                Images.Add(new ImageViewModel(new Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(file.Path.AbsolutePath) ) });
+            }
+            catch (ArgumentException)
+            {
+                Error error = new Error()
+                {
+                    Title = "Ошибка обработки картинки",
+                    Message = $"Картинка не была добавлена: \"{HttpUtility.UrlDecode(file.Name)}\"",
+                    Severity = ErrorSeverity.Error,
+                };
+                _ = await WeakReferenceMessenger.Default.Send(new ErrorMessage(new ErrorViewModel(error)));
+            }
+        }
         
         IsImagesEmpty = Images.Count == 0;
     }

ViewModels/NewEquipmentDialogViewModel.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using System.Web;
 using Avalonia.Controls;
@@ -7,6 +8,7 @@ using Avalonia.Platform.Storage;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using CommunityToolkit.Mvvm.Messaging;
+using GazpromApp.Enums;
 using GazpromApp.Messages;
 using GazpromApp.Models;
 
@@ -37,7 +39,22 @@ public partial class NewEquipmentDialogViewModel : ViewModelBase
         
         IsImageSelected = files.Count > 0;
         
-        Image = IsImageSelected ? new ImageViewModel(new Models.Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(files[0].Path.AbsolutePath)) } : null;
+        try
+        {
+            Image = IsImageSelected ? new ImageViewModel(new Models.Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(files[0].Path.AbsolutePath)) } : null; 
+        }
+        catch (ArgumentException)
+        {
+            Error error = new Error()
+            {
+                Title = "Ошибка обработки картинки",
+                Message = "Картинка не была добавлена",
+                Severity = ErrorSeverity.Error,
+            };
+            _ = await WeakReferenceMessenger.Default.Send(new ErrorMessage(new ErrorViewModel(error)));
+            
+            IsImageSelected = false;
+        }
     }
     
     [RelayCommand]

ViewModels/NewPointDialogViewModel.cs

@@ -1,5 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.Diagnostics;
 using System.Linq;
 using System.Threading.Tasks;
 using System.Web;
@@ -9,7 +11,9 @@ using Avalonia.Platform.Storage;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using CommunityToolkit.Mvvm.Messaging;
+using GazpromApp.Enums;
 using GazpromApp.Messages;
+using GazpromApp.Models;
 using Image = GazpromApp.Models.Image;
 using Point = GazpromApp.Models.Point;
 
@@ -37,7 +41,22 @@ public partial class NewPointDialogViewModel : ViewModelBase
             FileTypeFilter = [FilePickerFileTypes.ImageAll],
         });
         foreach (var file in files)
-            Images.Add(new ImageViewModel(new Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(file.Path.AbsolutePath)) });
+        {
+            try
+            {
+                Images.Add(new ImageViewModel(new Image()) { FileName = new Bitmap(HttpUtility.UrlDecode(file.Path.AbsolutePath)) });
+            }
+            catch (ArgumentException)
+            {
+                Error error = new Error()
+                {
+                    Title = "Ошибка обработки картинки",
+                    Message = $"Картинка не была добавлена: \"{HttpUtility.UrlDecode(file.Name)}\"",
+                    Severity = ErrorSeverity.Error,
+                };
+                _ = await WeakReferenceMessenger.Default.Send(new ErrorMessage(new ErrorViewModel(error)));
+            }
+        }
         
         IsImagesEmpty = Images.Count == 0;
     }