JSON import added

Utils/DataSerialization.cs

@@ -13,7 +13,8 @@ public static class DataSerialization
 
     private static string LoadData(string path)
     {
-        return System.IO.File.ReadAllText(path);
+        string text = System.IO.File.ReadAllText(path);
+        return text;
     }
 
     public static void SavePoint(Point point, string path)
@@ -41,7 +42,7 @@ public static class Deserialization
     {
         try
         {
-            return string.IsNullOrEmpty(point) ? JsonSerializer.Deserialize<Point>(point) : null;
+            return !string.IsNullOrEmpty(point) ? JsonSerializer.Deserialize<Point>(point) : null;
         }
         catch
         {

Utils/PropertyParentHelper.cs

@@ -0,0 +1,34 @@
+using GazpromApp.Models;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace GazpromApp.Utils
+{
+    public static class PropertyParentHelper
+    {
+        public static void SetPropertyParents(this Point point)
+        {
+            // Set parents for properties in point
+            foreach (var prop in point.Properties)
+            {
+                SetParentsRecursively(prop);
+            }
+
+            // Set parents for properties in equipment
+            foreach (var prop in point.Equipment.SelectMany(equipment => equipment.Properties))
+            {
+                SetParentsRecursively(prop);
+            }
+        }
+
+        private static void SetParentsRecursively(Property property)
+        {
+            foreach (var childProp in property.Properties)
+            {
+                childProp.Parent = property;
+                childProp.ParentId = property.Id;
+                SetParentsRecursively(childProp);
+            }
+        }
+    }
+}

ViewModels/MainWindowViewModel.cs

@@ -45,15 +45,29 @@ public partial class MainWindowViewModel : ViewModelBase
     }
 
     [RelayCommand]
-    private void ImportPoint(Window w)
+    private async Task ImportPoint(Window w)
     {
-        
+        var files = await w.StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
+        {
+            AllowMultiple = true,
+            SuggestedStartLocation = 
+                await w.StorageProvider.TryGetFolderFromPathAsync(
+                    Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments))
+        });
+        foreach (var file in files)
+        {
+            var url = file.Path.AbsolutePath;
+            var decoded = HttpUtility.HtmlDecode(url);
+            var point = DataSerialization.LoadPoint(decoded);
+            point?.SetPropertyParents();
+            Points.Add(new PointViewModel(point ?? new Point()));
+        }
     }
 
     [RelayCommand]
     private async Task ExportPoint(Window w)
     {
-        var folder = await w.StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions()
+        var folder = await w.StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
         {
             AllowMultiple = false,
             SuggestedStartLocation =
@@ -64,9 +78,10 @@ public partial class MainWindowViewModel : ViewModelBase
         {
             DataSerialization.SavePoint(point.GetPoint(), Path.Combine(HttpUtility.HtmlDecode(folder[0].Path.AbsolutePath), point.Name + ".json") );
         }
+        
     }
     
-    // Visual properties
+    // Visual and other properties
     
     [ObservableProperty]
     private bool _isLineVisible;

Views/MainWindow.axaml

@@ -52,7 +52,8 @@
           </StackPanel>
         </MenuItem.Header>
       </MenuItem>
-      <MenuItem>
+      <MenuItem Command="{Binding ImportPointCommand}"
+                CommandParameter="{Binding #Window}">
         <MenuItem.Header>
           <StackPanel Orientation="Horizontal">
             <Image Width="24" Height="24" Source="avares://GazpromApp/Assets/ic_fluent_arrow_import_24_filled (Custom).png"/>

obj/Debug/net8.0/GazpromApp.AssemblyInfo.cs

@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("GazpromApp")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+915c7a7c5ec49dae4fabb6a5def0aa05d90783a6")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+f3e0e15f352858b0ee8bba13ece6c0dffa8c8987")]
 [assembly: System.Reflection.AssemblyProductAttribute("GazpromApp")]
 [assembly: System.Reflection.AssemblyTitleAttribute("GazpromApp")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]

obj/Debug/net8.0/GazpromApp.AssemblyInfoInputs.cache

@@ -1 +1 @@
-21fc2377da7e1819564fca788d76eb9386fb849b5d97c9fa58834904b0020d89
+3913b1f238033a5ab96ca8fd462af0cdbfa6151f322cece9cf7cd65c0266a4e7