public static LabelFormMap TryConvertToRecieptMetaData(this string description, RecieptMetaData recieptMetaData)
{
try
{
return(recieptMetaData.Attributes
.Where(a => description.ToUpper().Contains(a.RecieptLabel.RowLabel))
.FirstOrDefault());
}
catch (Exception ex)
{
}
return(default(LabelFormMap));
}
public static List <TextElement> ExtractATMReciept(RecieptMetaData recieptMetaData, List <TextAnnotation> textAnnotations)
{
var possibleKeys = recieptMetaData.Attributes.Select(x => x.RecieptLabel.RowLabel);
//new String[] { "MACHINE NO.", "MACHINE ID", "DATE - TIME", "CASSETTE", "REJECTED", "REMAINING", "DISPENSED", "TOTAL", "TYPE 1", "TYPE 2", "TYPE 3", "TYPE 4", "LAST CLEARED" };
#region Date & Time Extraction
var wholeTextArray = textAnnotations[0].description.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
TextElement dateElement = null;
TextElement timeElement = null;
foreach (var textItem in wholeTextArray)
{
if (textItem.ToUpper().Contains("DATE"))
{
var splitedDateTime = textItem.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (splitedDateTime.Any() && splitedDateTime.Length > 2)
{
dateElement = new TextElement();
dateElement.Label = new LabelFormMap()
{
RecieptLabel = new RecieptLabel()
{
RowLabel = "DATE"
}
}; //eLabels.DATE;
dateElement.Value = splitedDateTime[splitedDateTime.Length - 2];
timeElement = new TextElement();
timeElement.Label = new LabelFormMap()
{
RecieptLabel = new RecieptLabel()
{
RowLabel = "TIME"
}
}; //eLabels.TIME;
timeElement.Value = splitedDateTime[splitedDateTime.Length - 1];
break;
}
}
}
#endregion
List <TextElement> elements = new List <TextElement>();
if (dateElement != null)
{
elements.Add(dateElement);
}
if (timeElement != null)
{
elements.Add(timeElement);
}
int index = 1;
while (index < textAnnotations.Count)
{
var textBlock = textAnnotations[index];
var y1 = textBlock.boundingPoly.vertices[0].y;
var y2 = textBlock.boundingPoly.vertices[2].y;
var matchingY = textAnnotations.Where(textB =>
(textB.boundingPoly.vertices[0].y == y1 && textB.boundingPoly.vertices[2].y == y2) ||
(Math.Abs(textB.boundingPoly.vertices[0].y - y1) <= 25 && Math.Abs(textB.boundingPoly.vertices[2].y - y2) <= 25))
.OrderBy(x => x.boundingPoly.vertices[0].x);
;
if (String.Equals(textBlock.description, "Type", StringComparison.OrdinalIgnoreCase))
{
index = index + matchingY.Count();
}
if (matchingY.Any())
{
//var matchingWithIndex = matchingY.Select((ax, i) => new { Index = i, Label = ax.description.TryFromEnumStringValue<eLabels>(), TextAnnotation = ax });
var matchingWithIndex = matchingY.Select((ax, i) => new { Index = i, Label = ax.description.TryConvertToRecieptMetaData(recieptMetaData), TextAnnotation = ax });
TextElement element = new TextElement();
var itemsWithValue = matchingWithIndex.Where(x => x.Label != null); //!= eLabels.Unknown);
if (itemsWithValue.Any())
{
var labelItem = itemsWithValue.FirstOrDefault();
element.Label = labelItem?.Label;
if (element.Label == null)//eLabels.Unknown)
{
index = index + matchingY.Count();
continue;
}
if (String.Equals(element.Label.RecieptLabel.RowLabel, "Data", StringComparison.OrdinalIgnoreCase))
//if (element.Label == eLabels.DATE)
{
index = index + matchingY.Count();
continue;
}
int skipIndex = labelItem.Index + 1;
if (matchingY.Count() <= 3)
{
element.Value = matchingY.LastOrDefault()?.description;
}
else
{
element.Value = matchingY.Skip(skipIndex).FirstOrDefault()?.description;
}
TextElement element2 = new TextElement();
if (matchingY.Count() > 3)
{
element2.Label = element.Label;
element2.Value = matchingY.Skip(skipIndex + 1).FirstOrDefault()?.description;
}
var currentMatchAdded = false;
if (!possibleKeys.Any(x => x.Contains(element.Value.ToUpper())))
{
elements.Add(element);
currentMatchAdded = true;
}
if (element2?.Value != null && !possibleKeys.Any(x => x.Contains(element2.Value.ToUpper())))
{
elements.Add(element2);
currentMatchAdded = true;
}
if (currentMatchAdded)
{
//foreach (var processed in matchingY.ToList())
// textAnnotations.Remove(processed);
}
else
{
index++;
}
}
else
{
index++;
}
}
}
return(elements);
}
