public Task Execute()
{
var dispatcher = Dispatcher.CurrentDispatcher;
var imageViewModel = mImages.Current.Value !;
imageViewModel.IsAnalyzing.Value = true;
return(Task.Run(async() =>
{
var fullImage = SKImage.FromEncodedData(imageViewModel.FilePath);
var attempts = 1;
while (fullImage == null && attempts < 10)
{
// Errored.. Image probably not fully written yet
await Task.Delay(attempts * 100).ConfigureAwait(false);
fullImage = SKImage.FromEncodedData(imageViewModel.FilePath);
attempts++;
}
if (fullImage == null)
{
imageViewModel.IsAnalyzing.Value = false;
// TODO: Report
return;
}
using var itemsImageStream = new MemoryStream();
fullImage.Subset(mImages.ItemsRectangle.Value)
.Encode(SKEncodedImageFormat.Png, 100)
.SaveTo(itemsImageStream);
itemsImageStream.Position = 0;
using var ocr = new AzureOcr(mSettings.ApiKey.Value, mSettings.ApiEndPoint.Value);
var itemsText = ocr.ExtractTextAsync(itemsImageStream);
using var locationImageStream = new MemoryStream();
fullImage.Subset(mImages.LocationRectangle.Value)
.Encode(SKEncodedImageFormat.Png, 100)
.SaveTo(locationImageStream);
locationImageStream.Position = 0;
try
{
var locationText = await ocr.ExtractTextAsync(locationImageStream).ConfigureAwait(false);
var(isBuying, items) = AzureOcr.ParseItems(await itemsText.ConfigureAwait(false));
await dispatcher.BeginInvoke(() =>
{
imageViewModel.IsAnalyzing.Value = false;
imageViewModel.IsAnalyzed.Value = true;
mLocations.AddLocation(locationText, items, isBuying);
});
}
catch (TaskCanceledException)
{
imageViewModel.IsAnalyzing.Value = false;
imageViewModel.IsAnalyzed.Value = false;
}
catch (Exception)
{
imageViewModel.IsAnalyzing.Value = false;
imageViewModel.IsAnalyzed.Value = false;
}
}));
}
