public bool WithPage(Metadata metadata, int pageIndex, Action <string> action)
{
if (metadata == null ||
pageIndex < 0 ||
pageIndex > metadata.Images.Pages.Count - 1)
{
return(false);
}
string pageCachedFilePath;
if (PathFormatter.IsEnabled)
{
pageCachedFilePath = PathFormatter.GetPage(metadata, pageIndex);
}
else
{
string paddedIndex = (pageIndex + 1).ToString(CultureInfo.InvariantCulture).PadLeft(GetBaseCount(metadata.Images.Pages.Count), '0');
pageCachedFilePath = string.Format(CultureInfo.InvariantCulture, "{0}{1}/{2}{3}", PathFormatter.GetCacheDirectory(), metadata.Id, paddedIndex, metadata.Images.Pages[pageIndex].GetFileExtension());
}
if (!File.Exists(pageCachedFilePath))
{
return(false);
}
if (action != null)
{
action.Invoke(pageCachedFilePath);
}
return(true);
}