Update models Messages

Govor.Core/Infrastructure/Validators/MessageValidator.cs

@@ -16,8 +16,8 @@ public class MessageValidator : IObjectValidator<Message>
                 throw new ArgumentException("Sender ID cannot be empty", nameof(message.SenderId));
             if (message.RecipientId == Guid.Empty)
                 throw new ArgumentException("Recipient ID cannot be empty", nameof(message.RecipientId));
-            if(string.IsNullOrWhiteSpace(message.EncryptedContent))
-                throw new ArgumentException("Encrypted content cannot be empty", nameof(message.EncryptedContent));
+            if(string.IsNullOrWhiteSpace(message.EncryptedContent) && (message.MediaAttachments is null || message.MediaAttachments.Count == 0))
+                throw new ArgumentException("Encrypted content cannot be empty when media attachments are empty", nameof(message.EncryptedContent));
             if(message.IsEdited && message.EditedAt == DateTime.MinValue)
                 throw new ArgumentException("Edited at time cannot be empty", nameof(message.EditedAt));
             if (message.SentAt == DateTime.MinValue)

Govor.Core/Models/Message.cs

@@ -12,6 +12,10 @@ public class Message
     public DateTime? EditedAt { get; set; }
     public List<MessageReaction> Reactions { get; set; } = new List<MessageReaction>();
     public List<MediaAttachments> MediaAttachments { get; set; } = new List<MediaAttachments>();
+    public List<MessageView> MessageViews { get; set; } = new List<MessageView>();
+    
+    public Guid? ReplyToMessageId { get; set; }
+    public Message? ReplyToMessage { get; set; } // navigation
 }
 
 public enum RecipientType

Govor.Core/Models/MessageView.cs

@@ -0,0 +1,9 @@
+namespace Govor.Core.Models;
+
+public class MessageView
+{
+    public Guid Id { get; set; }
+    public Guid MessageId { get; set; }
+    public Guid UserId { get; set; }
+    public DateTime ViewedAt { get; set; }
+}