models

SmallSoftwareProject/SmallSoftwareContracts/DataModels/SoftwareHistoryDataModel.cs

@@ -0,0 +1,27 @@
+using SmallSoftwareContracts.Exceptions;
+using SmallSoftwareContracts.Extensions;
+using SmallSoftwareContracts.Infrastructure;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SmallSoftwareContracts.DataModels;
+
+public class SoftwareHistoryDataModel(string softwareId, double oldPrice) : IValidation
+{
+    public string SoftwareId { get; private set; } = softwareId;
+    public double OldPrice { get; private set; } = oldPrice;
+    public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
+    public void Validate()
+    {
+        if (SoftwareId.IsEmpty())
+            throw new ValidationException("Field SoftwareId is empty");
+        if (!SoftwareId.IsGuid())
+            throw new ValidationException("The value in the field SoftwareId is not a unique identifier");
+        if (OldPrice <= 0)
+            throw new ValidationException("Field OldPrice is less than or equal to 0");
+    }
+}
+