// GPS button
document.getElementById('btn-gps')?.addEventListener('click', function () {
  const status = document.getElementById('gps-status');
  if (!navigator.geolocation) {
    status.textContent = '// GPS nicht verfügbar';
    return;
  }
  status.textContent = '// Standort wird ermittelt...';
  navigator.geolocation.getCurrentPosition(
    function (pos) {
      document.getElementById('entry-lat').value = pos.coords.latitude.toFixed(6);
      document.getElementById('entry-lon').value = pos.coords.longitude.toFixed(6);
      status.textContent = '// Standort gesetzt (' + pos.coords.accuracy.toFixed(0) + ' m Genauigkeit)';
    },
    function (err) {
      status.textContent = '// Fehler: ' + err.message;
    },
    { enableHighAccuracy: true, timeout: 10000 }
  );
});

// Set current time as default
(function () {
  const input = document.getElementById('entry-time');
  if (input && !input.value) {
    const now = new Date();
    const hh = String(now.getHours()).padStart(2, '0');
    const mm = String(now.getMinutes()).padStart(2, '0');
    input.value = hh + ':' + mm;
  }
})();

// Image preview
document.getElementById('image-input')?.addEventListener('change', function () {
  const preview = document.getElementById('image-preview');
  preview.innerHTML = '';
  Array.from(this.files).forEach(function (file) {
    if (!file.type.startsWith('image/')) return;
    const reader = new FileReader();
    reader.onload = function (e) {
      const img = document.createElement('img');
      img.src = e.target.result;
      preview.appendChild(img);
    };
    reader.readAsDataURL(file);
  });
});