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+<!DOCTYPE html>
+<html lang="de">
+<head>
+  <meta charset="UTF-8" />
+  <title>TimeTracking API WebUI - Test</title>
+  <style>
+    body { font-family: Arial, sans-serif; margin: 20px; max-width: 600px; }
+    label, select, input, button { display: block; width: 100%; margin-top: 10px; padding: 8px; }
+    pre { background: #f0f0f0; padding: 10px; white-space: pre-wrap; max-height: 300px; overflow-y: auto; }
+    #step2, #step3 { margin-top: 20px; }
+  </style>
+</head>
+<body>
+
+<h1>TimeTracking API WebUI</h1>
+
+<div id="step1">
+  <label for="apiUrl">WebAPI URL (z.B. https://time.mycompany.de/zsvc):</label>
+  <input type="text" id="apiUrl" placeholder="https://time.mycompany.de/zsvc" />
+  
+  <label for="token">API Token:</label>
+  <input type="text" id="token" placeholder="API Token hier eingeben" />
+
+  <button id="connectBtn">Verbinden und Daten laden</button>
+</div>
+
+<div id="step2" style="display:none;">
+  <label for="organizationUnit">Organisationseinheit:</label>
+  <select id="organizationUnit"></select>
+
+  <label for="exportDefinition">Export-Definition:</label>
+  <select id="exportDefinition"></select>
+
+  <label for="dateFrom">Von (YYYY-MM-DD):</label>
+  <input type="date" id="dateFrom" />
+
+  <label for="dateUntil">Bis (YYYY-MM-DD):</label>
+  <input type="date" id="dateUntil" />
+
+  <button id="requestExport">Export anfragen</button>
+</div>
+
+<div id="step3" style="margin-top: 20px;">
+  <h2>Export Daten</h2>
+  <pre id="exportResult">Noch keine Daten</pre>
+</div>
+
+<script>
+  let baseUrl = '';
+  let token = '';
+  let apiSite = ''; // Optional, falls die API-URL schon api beinhaltet, kann leer bleiben.
+
+  async function apiRequest(baseUrl, token, apiSite, method, endpoint, body = null) {
+    let url = baseUrl.replace(/\/+$/, '') + (apiSite ? '/' + apiSite.replace(/^\/+|\/+$/g, '') : '') + '/' + endpoint.replace(/^\/+/, '');
+    
+    const headers = {
+      'Authorization': token,
+    };
+    if (body) {
+      headers['Content-Type'] = 'application/json';
+    }
+
+    const options = {
+      method: method.toUpperCase(),
+      headers,
+    };
+    if (body) {
+      options.body = JSON.stringify(body);
+    }
+
+    const response = await fetch(url, options);
+    if (!response.ok) {
+      const errorText = await response.text();
+      throw new Error(`API Fehler ${response.status}: ${errorText}`);
+    }
+
+    const contentType = response.headers.get('content-type') || '';
+    if (contentType.includes('application/json')) {
+      return response.json();
+    }
+    return response.text();
+  }
+
+  document.getElementById('connectBtn').addEventListener('click', async () => {
+    baseUrl = document.getElementById('apiUrl').value.trim();
+    token = document.getElementById('token').value.trim();
+    apiSite = ''; // Kann erweitert werden, falls nötig
+
+    if (!baseUrl || !token) {
+      alert('Bitte WebAPI URL und Token eingeben.');
+      return;
+    }
+
+    try {
+      // OE laden
+      const orgUnits = await apiRequest(baseUrl, token, apiSite, 'GET', 'api/organization/');
+      // Export-Definitionen laden
+      const exportDefs = await apiRequest(baseUrl, token, apiSite, 'GET', 'api/export/');
+
+      const orgSelect = document.getElementById('organizationUnit');
+      orgSelect.innerHTML = '';
+      orgUnits.forEach(org => {
+        const opt = document.createElement('option');
+        opt.value = org.Id || org.id || '';
+        opt.textContent = org.Name || org.name || opt.value;
+        orgSelect.appendChild(opt);
+      });
+
+      const exportSelect = document.getElementById('exportDefinition');
+      exportSelect.innerHTML = '';
+      exportDefs.forEach(def => {
+        const opt = document.createElement('option');
+        opt.value = def.Id || def.id || def.ExportDefinitionId || def.ExportDefinition || '';
+        opt.textContent = def.Name || def.name || opt.value;
+        exportSelect.appendChild(opt);
+      });
+
+      // Schritt 2 einblenden
+      document.getElementById('step1').style.display = 'none';
+      document.getElementById('step2').style.display = 'block';
+
+      // Datum Default setzen (letzte Woche)
+      const dateFromInput = document.getElementById('dateFrom');
+      const dateUntilInput = document.getElementById('dateUntil');
+      const today = new Date();
+      const lastWeek = new Date(today);
+      lastWeek.setDate(today.getDate() - 7);
+      dateFromInput.value = lastWeek.toISOString().split('T')[0];
+      dateUntilInput.value = today.toISOString().split('T')[0];
+
+    } catch (e) {
+      alert('Fehler beim Laden der Daten: ' + e.message);
+    }
+  });
+
+  document.getElementById('requestExport').addEventListener('click', async () => {
+    const exportDefinitionId = document.getElementById('exportDefinition').value;
+    const organizationUnitId = document.getElementById('organizationUnit').value;
+    const dateFrom = document.getElementById('dateFrom').value;
+    const dateUntil = document.getElementById('dateUntil').value;
+
+    if (!exportDefinitionId || !organizationUnitId || !dateFrom || !dateUntil) {
+      alert('Bitte alle Felder ausfüllen.');
+      return;
+    }
+
+    try {
+      // Export anfragen
+      const result = await apiRequest(baseUrl, token, apiSite, 'POST', 'api/export', {
+        ExportDefinition: exportDefinitionId,
+        organizationUnit: organizationUnitId,
+        DateFrom: dateFrom,
+        DateUntil: dateUntil
+      });
+
+      if (!result.Result) {
+        throw new Error('Kein Result im Antwortobjekt');
+      }
+
+      // Exportdaten abrufen (Result ist GUID)
+      const exportData = await apiRequest(baseUrl, token, apiSite, 'GET', `api/export/${result.Result}`);
+
+      const pre = document.getElementById('exportResult');
+      if (typeof exportData === 'object') {
+        pre.textContent = JSON.stringify(exportData, null, 2);
+      } else {
+        pre.textContent = exportData;
+      }
+
+    } catch (e) {
+      alert('Fehler beim Export: ' + e.message);
+    }
+  });
+</script>
+
+</body>
+</html>
