// Include Face-API.js and TensorFlow.js libraries
<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-core"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-converter"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow-models/face-landmarks-detection"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow-models/face-api.js"></script>
<script>
// Load the Face-API.js models
Promise.all([
  faceapi.nets.tinyFaceDetector.loadFromUri('models'),
  faceapi.nets.faceLandmark68Net.loadFromUri('models'),
]).then(startFaceDetection);

// Function to start face detection
function startFaceDetection() {
  const video = document.getElementById('video'); // Get the video element
  navigator.mediaDevices.getUserMedia({ video: true }) // Get user's video stream
    .then((stream) => {
      video.srcObject = stream; // Set video stream as the source
    })
    .catch((error) => {
      console.error('Error accessing the camera: ', error);
    });

  video.addEventListener('play', () => {
    const canvas = faceapi.createCanvasFromMedia(video);
    document.body.appendChild(canvas);
    const displaySize = { width: video.width, height: video.height };
    faceapi.matchDimensions(canvas, displaySize);

    setInterval(async () => {
      const detections = await faceapi.detectAllFaces(video, new faceapi.TinyFaceDetectorOptions())
        .withFaceLandmarks();

      // Clear previous detections
      canvas.getContext('2d').clearRect(0, 0, canvas.width, canvas.height);

      // Draw face detection boxes and landmarks
      const resizedDetections = faceapi.resizeResults(detections, displaySize);
      faceapi.draw.drawDetections(canvas, resizedDetections);
      faceapi.draw.drawFaceLandmarks(canvas, resizedDetections);

      // Calculate skin health based on detections
      if (detections.length > 0) {
        const face = detections[0];
        const skinHealth = calculateSkinHealth(face.landmarks);
        console.log('Skin Health:', skinHealth);
      }
    }, 100);
  });
}

// Function to calculate skin health based on face landmarks
function calculateSkinHealth(landmarks) {
  // Implement your skin health calculation logic here
  // You can analyze different facial features, such as complexion, wrinkles, blemishes, etc.
  // Based on the analysis, assign a score or category to determine skin health
  // Return the calculated skin health value
}
</script>