the basis for group and private messages

Govor.Core/Repositories/Groups/IGroupsExist.cs

@@ -0,0 +1,9 @@
+using Govor.Core.Models;
+
+namespace Govor.Core.Repositories.Groups;
+
+public interface IGroupsExist
+{
+    public bool Exists(Guid groupId);
+    public bool Exists(ChatGroup chatGroup);
+}

Govor.Core/Repositories/Groups/IGroupsReader.cs

@@ -1,6 +1,6 @@
 namespace Govor.Core.Repositories.Groups;
 
-public class IGroupsReader
+public interface IGroupsReader
 {
     
 }

Govor.Core/Repositories/Groups/IGroupsRepository.cs

@@ -0,0 +1,6 @@
+namespace Govor.Core.Repositories.Groups;
+
+public interface IGroupsRepository : IGroupsReader, IGroupsExist, IGroupsWriter
+{
+    
+}

Govor.Core/Repositories/Groups/IGroupsWriter.cs

@@ -0,0 +1,6 @@
+namespace Govor.Core.Repositories.Groups;
+
+public interface IGroupsWriter
+{
+    
+}