JSON export added

Utils/DataSerialization.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Text.Json;
+using GazpromApp.Models;
+
+namespace GazpromApp.Utils;
+
+public static class DataSerialization
+{
+    private static void SaveData(string path, string data)
+    {
+        System.IO.File.WriteAllText(path, data);
+    }
+
+    private static string LoadData(string path)
+    {
+        return System.IO.File.ReadAllText(path);
+    }
+
+    public static void SavePoint(Point point, string path)
+    {
+        SaveData(path, point.Serialize());
+    }
+    
+    public static Point? LoadPoint(string path)
+    {
+        return Deserialization.Deserialize(LoadData(path));
+    }
+}
+
+public static class Serialization
+{
+    public static string Serialize(this Point point)
+    {
+        return JsonSerializer.Serialize(point);
+    }
+}
+
+public static class Deserialization
+{
+    public static Point? Deserialize(string point)
+    {
+        try
+        {
+            return string.IsNullOrEmpty(point) ? JsonSerializer.Deserialize<Point>(point) : null;
+        }
+        catch
+        {
+            throw new ArgumentException("Ошибка расшивроки json файла");
+        }
+    }
+}