From aac199f5ed49e7fa97e0484e347d280ffe026c01 Mon Sep 17 00:00:00 2001
From: Joss <joss@jossco.de>
Date: Tue, 20 May 2025 21:17:40 +0200
Subject: [PATCH] Implemented TreeView

---
 src/data/Model.java     | 16 ++++++++++++++--
 src/views/TreeView.java | 14 +++++++++++++-
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/src/data/Model.java b/src/data/Model.java
index eba5186..ba7ecb2 100644
--- a/src/data/Model.java
+++ b/src/data/Model.java
@@ -90,8 +90,20 @@ public class Model {
 	 * oder null wenn es keines gibt.
 	 */
 	public DataObject get(String path) {
-		if ( !objs.containsKey(path) ) return null;
-		return objs.get(path);
+		if ( !this.objs.containsKey(path) ) return null;
+		return this.objs.get(path);
+	}
+
+	/**
+	 * Gibt ein Array aus allen vorhandenen UIDs zurück.
+	 *
+	 * Praktisch für Anzeige von Listen.
+	 * TODO: Eventuell ersetzen durch Rückgabe DataObjects?
+	 */
+	public String[] getAllUids() {
+		// was zur hölle ist das denn?
+		// siehe https://docs.oracle.com/javase/8/docs/api/java/util/Set.html#toArray-T:A-
+		return this.objs.keySet().toArray(new String[0]);
 	}
 
 }
diff --git a/src/views/TreeView.java b/src/views/TreeView.java
index dc0406d..272d427 100644
--- a/src/views/TreeView.java
+++ b/src/views/TreeView.java
@@ -1,5 +1,7 @@
 package hsmw.jotto5.beleg.views;
 
+import hsmw.jotto5.beleg.data.Model;
+
 import java.io.IOException;
 import java.io.OutputStream;
 import com.sun.net.httpserver.*;
@@ -9,8 +11,18 @@ public class TreeView implements HttpHandler {
 	public void handle(HttpExchange t) throws IOException {
 		String response;
 		OutputStream os;
+		Model m;
+
+		m = Model.getModel();
+
+		response = Defaults.HTMLHEADER + "<h1>Beleg - Objekt&uuml;bersicht</h1><ul>";
+
+		for ( String s : m.getAllUids() ) {
+			response += "<li><a href=\"/object/" + s + "\">" + s + "</a></li>";
+		}
+
+		response += "</ul>" + Defaults.HTMLFOOTER;
 
-		response = Defaults.HTMLHEADER + "<h1>Beleg - Objekt&uuml;bersicht</h1>" + Defaults.HTMLFOOTER;
 		os = t.getResponseBody();
 
 		t.sendResponseHeaders(200, response.length());