using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using VEPROMS.CSLA.Library;
using iTextSharp.text;


namespace Volian.Print.Library
{
	public class PDFPageSize
	{
		// C2020-002 paper size is now set in the format files - this class is use to select the page size that PROMS should be using
		private static Dictionary<string, Rectangle> dicPDFPageSize = new Dictionary<string, Rectangle>();
		private static Dictionary<string, int> dicPDFPageSizePnts = new Dictionary<string, int>();
		private static void BuildPDFPageSizeDic()
		{
			// the page size is set in the format files using a string description i.e.: <PDFPageSize PaperSize="LETTER" />
			if (dicPDFPageSize.Count > 0) return;
			dicPDFPageSize.Add("LETTER", PageSize.LETTER);
			dicPDFPageSize.Add("A4", PageSize.A4);
		}
		private static void BuildPDFPageSizeDicPnts()
		{
			if (dicPDFPageSizePnts.Count > 0) return;
			dicPDFPageSizePnts.Add("LETTER", 792);
			dicPDFPageSizePnts.Add("A4", 842);
			/* Paper Size in Points
			 -------------------------
				Letter		 612x792
				LetterSmall	 612x792
				Tabloid		 792x1224
				Ledger		 1224x792
				Legal		 612x1008
				Statement	 396x612
				Executive	 540x720
				A0           2384x3371
				A1           1685x2384
				A2		     1190x1684
				A3		     842x1190
				A4		     595x842
				A4Small		 595x842
				A5		     420x595
				B4		     729x1032
				B5		     516x729
				Envelope	 ???x???
				Folio		 612x936
				Quarto		 610x780
				10x14		 720x1008	
			 */
		}
		public static Rectangle UsePaperSize(string pgSize)
		{
			Rectangle recPageSize = PageSize.LETTER;
			BuildPDFPageSizeDic();
			if (pgSize != null && dicPDFPageSize.ContainsKey(pgSize.ToUpper()))
				recPageSize = dicPDFPageSize[pgSize.ToUpper()];
			return recPageSize;
		}
		public static int PaperSizePoints(string pgSize)
		{
			int paperPoints = 792; //LETTER paper size
			BuildPDFPageSizeDicPnts();
			if (pgSize != null && dicPDFPageSizePnts.ContainsKey(pgSize.ToUpper()))
				paperPoints = dicPDFPageSizePnts[pgSize.ToUpper()];
			return paperPoints;
		}
	}
}