preparing display of selcted message

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

core/src/main/java/de/srsoftware/umbrella/core/model/Envelope.java

@@ -52,6 +52,17 @@ public class Envelope {
 		return new Envelope(message,receivers);
 	}
 
+	@Override
+	public final boolean equals(Object o) {
+		if (!(o instanceof Envelope envelope)) return false;
+		return message.equals(envelope.message) && time.equals(envelope.time);
+	}
+
+	@Override
+	public int hashCode() {
+		return 31 * message.hashCode() + time.hashCode();
+	}
+
 	public boolean isFor(User receiver) {
 		return receivers.contains(receiver);
 	}

core/src/main/java/de/srsoftware/umbrella/core/model/Message.java

@@ -9,12 +9,13 @@ import static de.srsoftware.umbrella.core.exceptions.UmbrellaException.*;
 import static de.srsoftware.umbrella.core.model.Translatable.t;
 import static java.text.MessageFormat.format;
 
+import de.srsoftware.tools.Mappable;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
 import java.util.*;
 import org.json.JSONArray;
 import org.json.JSONObject;
 
-public record Message(UmbrellaUser sender, Translatable subject, Translatable body, List<Attachment> attachments) {
+public record Message(UmbrellaUser sender, Translatable subject, Translatable body, List<Attachment> attachments)  {
 	@Override
 	public boolean equals(Object o) {
 		if (!(o instanceof Message message)) return false;

frontend/src/routes/message/Messages.svelte

@@ -6,13 +6,25 @@
     import { error, yikes } from '../../warn.svelte';
 
     let router = useTinyRouter();
+    let messages = [];
+
+    async function display(hash){
+        const url = api(`message/${hash}`);
+        const res = get(url);
+        if (res.ok){
+            yikes();
+            const json = await res.json();
+            console.log(json);
+        } else {
+            error(res);
+        }
+    }
 
     async function load(){
         const url = api('message');
         const res = await get(url);
         if (res.ok){
-            let json = await res.json();
-            console.log(json);
+            messages = await res.json();
             yikes();
         } else {
             error(res);
@@ -28,4 +40,22 @@
 
 <fieldset>
     <legend>{t('messages')} <button onclick={showSettings}>{t('settings')}</button></legend>
+    <table>
+        <thead>
+            <tr>
+                <th>{t('timestamp')}</th>
+                <th>{t('initiator')}</th>
+                <th>{t('subject')}</th>
+            </tr>
+        </thead>
+        <tbody>
+            {#each messages as message}
+            <tr class="message-{message.hash}" onclick={ev => display(message.hash)}>
+                <td>{message.timestamp}</td>
+                <td>{message.sender}</td>
+                <td>{message.subject}</td>
+            </tr>
+            {/each}
+        </tbody>
+    </table>
 </fieldset>

messages/src/main/java/de/srsoftware/umbrella/message/MessageSystem.java

@@ -115,7 +115,14 @@ public class MessageSystem extends BaseHandler implements PostBox, EventListener
 			return switch (head){
 				case null -> listMessages(ex,user.get());
 				case SETTINGS -> getSettings(ex,user.get());
-				default -> super.doGet(path,ex);
+				default -> {
+					try {
+						yield getMessage(ex,user.get(),Integer.parseInt(head));
+					} catch (NumberFormatException ignored) {
+
+					}
+					yield super.doGet(path, ex);
+				}
 			};
 		} catch (NumberFormatException e){
 			return sendContent(ex,HTTP_BAD_REQUEST,"Invalid project id");
@@ -124,6 +131,25 @@ public class MessageSystem extends BaseHandler implements PostBox, EventListener
 		}
 	}
 
+	private boolean getMessage(HttpExchange ex, UmbrellaUser user, int hash) throws IOException {
+		var envelope = queue.stream()
+				.filter(msg -> msg.isFor(user))
+				.filter(msg -> msg.hashCode() == hash)
+				.findFirst();
+		if (envelope.isPresent()) {
+			var message = envelope.get().message();
+			var sender = message.sender().name();
+			var subject = message.subject().translate(user.language());
+			var body = message.body().translate(user.language());
+			return sendContent(ex,Map.of(
+					SENDER,sender,
+					SUBJECT,subject,
+					BODY,body
+			));
+		}
+		return notFound(ex);
+	}
+
 	@Override
 	public boolean doPatch(Path path, HttpExchange ex) throws IOException {
 		addCors(ex);
@@ -170,7 +196,8 @@ public class MessageSystem extends BaseHandler implements PostBox, EventListener
 		var sender  = envelope.message().sender().name();
 		var subject = envelope.message().subject().translate(lang);
 		var time    = envelope.time().format(TIME_FORMATTER);
-		return new JSONObject(Map.of(SENDER,sender,SUBJECT,subject,TIMESTAMP,time));
+		var hash      = envelope.hashCode();
+		return new JSONObject(Map.of(SENDER,sender,SUBJECT,subject,TIMESTAMP,time,HASH,hash));
 	}
 
 	@Override