Модуль связей и Klipy

backend/src/Modules/Relations/Domain/Contact.cs

@@ -0,0 +1,40 @@
+using Knot.Shared.Kernel;
+using System;
+
+namespace Knot.Modules.Relations.Domain;
+
+public enum ContactStatus
+{
+    Pending,
+    Accepted,
+    Declined,
+    Blocked
+}
+
+public sealed class Contact : Entity<Guid>, IAggregateRoot
+{
+    public Guid UserId { get; private set; }
+    public Guid ContactId { get; private set; }
+    public ContactStatus Status { get; private set; }
+    public DateTime CreatedAt { get; private set; }
+
+    private Contact() : base(Guid.NewGuid()) { }
+
+    private Contact(Guid id, Guid userId, Guid contactId, ContactStatus status) : base(id)
+    {
+        UserId = userId;
+        ContactId = contactId;
+        Status = status;
+        CreatedAt = DateTime.UtcNow;
+    }
+
+    public static Contact CreateRequest(Guid userId, Guid contactId)
+    {
+        return new Contact(Guid.NewGuid(), userId, contactId, ContactStatus.Pending);
+    }
+
+    public void Accept() => Status = ContactStatus.Accepted;
+    public void Decline() => Status = ContactStatus.Declined;
+    public void Block() => Status = ContactStatus.Blocked;
+    public void Unblock() => Status = ContactStatus.Accepted; // Or Pending if it was pending
+}