private string handleVisitorResult(VisitorResultObject result)
{
string playContent = null;
if (result.status == "Invalid")
{
playContent = "Invalid";
}
else
{
playContent = "Welcome";
foreach (var visitor in result.visitorNames)
{
playContent += " " + visitor;
}
if (result.strangerNum == 0)
{
playContent += " to my home";
}
else if (result.totalNum == result.strangerNum)
{
playContent += " " + result.strangerNum.ToString() + " friends to my home";
}
else
{
playContent += " and other " + result.strangerNum.ToString() + " friends to my home";
}
}
return(playContent);
}
/// <summary>
/// This function is for send the capture picture to Azure backend.
/// </summary>
private async Task SendPhotoAsync()
{
nowTime = DateTime.Now;
if (nowTime.Subtract(preTime).TotalSeconds < 10)
{
return;
}
if (_isSendingPhoto)
{
return;
}
_isSendingPhoto = true;
preTime = DateTime.Now;
InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream();
try
{
Debug.WriteLine("Taking photo...");
await _mediaCapture.CapturePhotoToStreamAsync(ImageEncodingProperties.CreateJpeg(), stream);
Debug.WriteLine("Photo taken!");
byte[] bytes = new byte[stream.Size];
stream.Seek(0);
var buffer = await stream.ReadAsync(bytes.AsBuffer(), (uint)stream.Size, InputStreamOptions.None);
bytes = buffer.ToArray();
Debug.WriteLine("bytes ok!");
//Upload the picture using HTTP request
HttpResponseMessage response = await httpPostRequest(bytes);
string playContent = string.Empty;
if (response.IsSuccessStatusCode)
{
string resultContent = response.Content.ReadAsStringAsync().Result;
Stream mStream = new MemoryStream(Encoding.UTF8.GetBytes(resultContent));
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(VisitorResultObject));
VisitorResultObject result = (VisitorResultObject)ser.ReadObject(mStream);
playContent = handleVisitorResult(result);
}
else
{
playContent = "Request Error";
}
await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => { this.infoshowText.Text = playContent; PlayTTS(playContent); });
}
catch (Exception ex)
{
Debug.WriteLine("Exception when taking a photo: {0}", ex.ToString());
}
_isSendingPhoto = false;
}