public async Task <bool> IdentifyCustomer(byte[] image)
{
if (IsBusy)
{
return(false);
}
IsBusy = true;
ImageData = image;
bool result = false;
IdentifyCustomerResponse response = await AzureService.IdentifyCustomer(imageData);
if (!response.HasError)
{
customerData = response.Customer;
FirstName = string.IsNullOrEmpty(customerData.FirstName) ? "" : customerData.FirstName;
LastName = string.IsNullOrEmpty(customerData.LastName) ? "" : customerData.LastName;
Age = customerData.Age;
Gender = customerData.Gender;
if (response.PreviousOrder != null)
{
PreviousOrderDate = (response.PreviousOrder.Date == default(DateTime)) ? null : string.Format("{0:MMMM dd, yyyy}", response.PreviousOrder.Date);
PreviousOrderDescription = response.PreviousOrder.Description;
}
ImageUri = new Uri(response.ImageUrl);
Emotion = response.Emotion;
result = true;
}
IsBusy = false;
return(result);
}
public static async Task <HttpResponseMessage> IdentifyCustomer([HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequestMessage req, TraceWriter log)
{
// Get request body
var body = await req.Content.ReadAsStringAsync();
var imageCapture = JsonConvert.DeserializeObject <IdentifyCustomerRequest>(body, new JsonConverter[] { new GuidJsonConverter() });
if (imageCapture == null)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, "No Valid Data submitted."));
}
// Decode data from Base64
byte[] imageBytes = Convert.FromBase64String(imageCapture.Image);
// Detect the faces
Face detectedFace;
using (var stream = new MemoryStream(imageBytes))
{
detectedFace = await FaceClient.Instance.DetectPrimaryFace(stream, true);
if (detectedFace == null || detectedFace.FaceId == null)
{
req.CreateResponse(HttpStatusCode.ExpectationFailed, "Error: No face was detected");
}
}
// Crop the face
var rect = new Rectangle(
detectedFace.FaceRectangle.Left,
detectedFace.FaceRectangle.Top,
detectedFace.FaceRectangle.Width,
detectedFace.FaceRectangle.Height
);
rect.Inflate(50, 50);
using (var stream = new MemoryStream(imageBytes))
{
Bitmap bmp = Image.FromStream(stream) as Bitmap;
var cropped = ImageUtils.CropBitmap(bmp, rect);
imageBytes = cropped.ToByteArray(ImageFormat.Png);
}
// Store the image
string storedUrl = StorageClient.Instance.StoreImage(imageBytes, ImagesContainerID)?.ToString();
log.Trace(new TraceEvent(System.Diagnostics.TraceLevel.Verbose, "heres the url!: " + storedUrl));
var response = new IdentifyCustomerResponse()
{
ImageUrl = storedUrl,
Emotion = FaceClient.Instance.ParseEmotions(detectedFace.FaceAttributes.Emotion)
};
// Check for existing Customers
response.Customer = await FaceClient.Instance.IdentifyCustomerFace(detectedFace.FaceId);
// Update the customers history with the recent photo
if (response.Customer != null)
{
await FaceClient.Instance.AddCustomerFace(response.Customer, storedUrl);
// Get their previous order
var orders = CosmosClient.Instance.GetCustomerOrders(response.Customer.id, 1); // Could show more if we wanted
response.PreviousOrder = orders.FirstOrDefault();
}
// If there are no matched customers return a new Customer with the FaceID
else
{
response.Customer = new Customer()
{
FaceId = detectedFace.FaceId,
Age = detectedFace.FaceAttributes.Age,
Gender = detectedFace.FaceAttributes.Gender
};
}
return(req.CreateResponse(HttpStatusCode.OK, response));
}
