HL7-3: remove optimistic updates and react to delivery-success

packages/client/src/routes/+page.svelte

@@ -9,7 +9,13 @@
         UnplugIcon,
         UserIcon,
     } from '@lucide/svelte';
-    import { ConnectionState, type Message, MessageType, type ReceiveHl7v2Message } from '@hnu.de/hl7v2-shared';
+    import {
+        ConnectionState,
+        type DeliverySuccessMessage,
+        type Message,
+        MessageType,
+        type ReceiveHl7v2Message,
+    } from '@hnu.de/hl7v2-shared';
     import { Button } from '$lib/components/ui/button';
     import { Card, CardContent, CardHeader } from '$lib/components/ui/card';
     import { Input } from '$lib/components/ui/input';
@@ -25,7 +31,7 @@
 
     // client state
     let composedMessage = $state(''); // content of text-box
-    let sentMessages = $state<ReceiveHl7v2Message[]>([]); // sent messages stored as type ReceiveHl7v2Message because of the timestamp
+    let sentMessages = $state<DeliverySuccessMessage[]>([]);
     let receivedMessages = $state<ReceiveHl7v2Message[]>([]);
     let isSending = $state(false);
     let copySuccess = $state(false);
@@ -96,6 +102,12 @@
                     receivedMessages = [message, ...receivedMessages];
                     break;
 
+                // our message was successfully delivered
+                case MessageType.delivery_success:
+                    sentMessages = [message, ...sentMessages];
+                    isSending = false
+                    break;
+
                 // message from server due to delivery error
                 case MessageType.delivery_error:
                     deliveryError = message.payload.error;
@@ -154,15 +166,6 @@
             payload: { message },
         } as Message;
         ws.send(JSON.stringify(messageToSend));
-
-        sentMessages = [{
-            type: MessageType.receive_hl7v2,
-            payload: { message, timestamp: new Date().toISOString() },
-        } as ReceiveHl7v2Message, ...sentMessages];
-        composedMessage = segmentTemplates.MSH.template();
-
-        // reset UI state
-        isSending = false;
     }
 
     // copies the stationId to the clipboard and handles UI state