public void ProcessImage(CancellationToken token)
{
int currentImageIndex = -1;
int imageCount = 0;
bool isNextPageWaiting = false;
PdfUtility pdf = new PdfUtility();
do
{
foreach (var file in FileSystem.InputDirectory.GetFiles().Skip(imageCount))
{
string fileName = file.Name;
bool isValid = Regex.IsMatch(fileName, @"^img_[0-9]{3}.(jpg|png|jpeg)$");
if (isValid)
{
int imageIndex = GetImageIndex(fileName);
if (imageIndex != currentImageIndex + 1 && currentImageIndex != -1 && isNextPageWaiting)
{
Save(ref pdf, out isNextPageWaiting);
}
if (FileSystem.TryOpenFile(file, 3))
{
pdf.AddImage(file.FullName);
imageCount++;
currentImageIndex = imageIndex;
isNextPageWaiting = true;
}
}
else
{
string outFile = Path.Combine(FileSystem.TempDirectory.FullName, fileName);
if (File.Exists(outFile))
{
FileSystem.DeleteFile(file);
}
else
{
file.MoveTo(outFile);
}
}
}
if (!_newFileEvent.WaitOne(5000) && isNextPageWaiting)
{
Save(ref pdf, out isNextPageWaiting);
}
if (token.IsCancellationRequested)
{
if (isNextPageWaiting)
{
pdf.Save(FileSystem.GetNextFilename());
}
foreach (var file in FileSystem.InputDirectory.GetFiles())
{
FileSystem.DeleteFile(file);
}
}
} while (!token.IsCancellationRequested);
}
private void Save(ref PdfUtility pdf, out bool isNextPageWaiting)
{
pdf.Save(FileSystem.GetNextFilename());
pdf = new PdfUtility();
isNextPageWaiting = false;
}