Modifying points works

ViewModels/EditPointDialogViewModel.cs

@@ -1,6 +1,120 @@
-namespace GazpromApp.ViewModels;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.Linq;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using Avalonia.Media.Imaging;
+using Avalonia.Platform.Storage;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using CommunityToolkit.Mvvm.Messaging;
+using GazpromApp.Messages;
+using GazpromApp.Models;
+using Image = GazpromApp.Models.Image;
+
+namespace GazpromApp.ViewModels;
 
 public partial class EditPointDialogViewModel : ViewModelBase
 {
+    public ObservableCollection<ImageViewModel> Images { get; set; }
     
+    [ObservableProperty]
+    [NotifyCanExecuteChangedFor(nameof(CompleteEditCommand))]
+    private string? _name;
+    
+    [ObservableProperty]
+    [NotifyCanExecuteChangedFor(nameof(CompleteEditCommand))]
+    private string? _description;
+    
+    [ObservableProperty]
+    private bool _isNameEditing;
+    
+    [ObservableProperty]
+    private bool _isDescriptionEditing;
+
+    [RelayCommand]
+    private void EditName()
+    {
+        IsNameEditing = !IsNameEditing;
+        IsDescriptionEditing = false;
+    }
+    
+    [RelayCommand]
+    private void EditDescription()
+    {
+        IsDescriptionEditing = !IsDescriptionEditing;
+        IsNameEditing = false;
+    }
+
+    [RelayCommand]
+    private async Task AddImage(Window w)
+    {
+        IReadOnlyList<IStorageFile> files = await w.StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions()
+        {
+            AllowMultiple = true,
+            Title = "Выберите одну или несколько картинок",
+            FileTypeFilter = [FilePickerFileTypes.ImageAll],
+        });
+        foreach (var file in files)
+            Images.Add(new ImageViewModel(new Image()) { FileName = new Bitmap(file.Path.AbsolutePath) });
+        
+        IsImagesEmpty = Images.Count == 0;
+    }
+    
+    [RelayCommand]
+    private void DeleteImage(ImageViewModel image)
+    {
+        Images.Remove(image);
+        IsImagesEmpty = Images.Count == 0;
+    }
+
+    [RelayCommand]
+    private async Task ViewImage(ImageViewModel image)
+    {
+        _ = await WeakReferenceMessenger.Default.Send(new ViewImageMessage(image));
+    }
+
+    private bool CanCompleteEdit() => !string.IsNullOrWhiteSpace(Name);
+
+    [RelayCommand(CanExecute = nameof(CanCompleteEdit))]
+    private void CompleteEdit()
+    {
+        Point point = new Point()
+        {
+            Name = Name,
+            Description = Description,
+            Images = Images.Select(e => e.GetImage()).ToList()
+        };
+        WeakReferenceMessenger.Default.Send(new EditPointDone(new PointViewModel(point)));
+    }
+
+    [RelayCommand]
+    private static void CancelEdit(Window w)
+    {
+        w.Close();
+    }
+
+    [ObservableProperty]
+    private bool _isImagesEmpty;
+
+    public EditPointDialogViewModel()
+    {
+        Name = "";
+        Description = "";
+        Images = [];
+        IsImagesEmpty = true;
+    }
+
+    public EditPointDialogViewModel(PointViewModel point)
+    {
+        Name = point.Name;
+        Description = point.Description;
+        Images = new ObservableCollection<ImageViewModel>((point.Images ?? []).Select(e => new ImageViewModel(e)));
+        foreach (ImageViewModel imageViewModel in Images)
+        {
+            Debug.WriteLine(imageViewModel.FileName);
+        }
+        IsImagesEmpty = Images.Count == 0;
+    }
 }