disappearing message config to proto

SessionMessagingKit/Database/Models/DisappearingMessageConfiguration.swift

@@ -20,6 +20,24 @@ public struct DisappearingMessagesConfiguration: Codable, Identifiable, Equatabl
     public enum DisappearingMessageType: Int, Codable, Hashable, DatabaseValueConvertible {
         case disappearAfterRead
         case disappearAfterSend
+        
+        init(protoType: SNProtoContent.SNProtoContentExpirationType) {
+            switch protoType {
+                case .deleteAfterSend:
+                    self = .disappearAfterSend
+                case .deleteAfterRead:
+                    self = .disappearAfterRead
+            }
+        }
+        
+        func toProto() -> SNProtoContent.SNProtoContentExpirationType {
+            switch self {
+                case .disappearAfterRead:
+                    return .deleteAfterRead
+                case .disappearAfterSend:
+                    return .deleteAfterSend
+            }
+        }
     }
     
     public var id: String { threadId }  // Identifiable

SessionMessagingKit/Messages/Visible Messages/VisibleMessage.swift

@@ -183,6 +183,19 @@ public final class VisibleMessage: Message {
             dataMessage.setReaction(reactionProto)
         }
         
+        // DisappearingMessagesConfiguration
+        if let threadId = self.threadId,
+            let disappearingMessagesConfiguration = try? DisappearingMessagesConfiguration.fetchOne(db, id: threadId)
+        {
+            proto.setExpirationTimer(UInt32(disappearingMessagesConfiguration.durationSeconds))
+            
+            if disappearingMessagesConfiguration.isEnabled,
+                let type = disappearingMessagesConfiguration.type
+            {
+                proto.setExpirationType(type.toProto())
+            }
+        }
+        
         // Group context
         do {
             try setGroupContextIfNeeded(db, on: dataMessage)