using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Threading.Tasks;
using System.Diagnostics;
using ncPDFHelper;

public partial class Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btnSubmit_Click(object sender, EventArgs e)
    {

        PDFHelper oPDF = new PDFHelper();

        String previewPDFs = "~/files/SamplePageFile.html";

        oPDF.HtmlToPdf(previewPDFs, "~/css/htmlstyle.css", 
        Server.MapPath("files/htmlpdf.pdf"));
        
        //-oPDF.WordToPDF(previewPDFs, Server.MapPath("files/htmlpdf.pdf"),true);

        //server.LoadDocument("Documents\\TextWithImages.htm");
        //server.ExportToPdf("Document_PDF.pdf");
        //System.Diagnostics.Process.Start("Document_PDF.pdf");

        

        String ImgPreview1 = Server.MapPath("files/family-2.jpg");
        String ImgPreview2 = Server.MapPath("files/Retired.gif");

        String[] aImgFiles = new String[2];
        aImgFiles[0] = ImgPreview1;
        aImgFiles[1] = ImgPreview2;

        //- Convert from BMP, JPG, GIF, PNG to PDF
        oPDF.ImagesToPdf(aImgFiles, Server.MapPath("files/"), "ExportImg.pdf");

        //- Convert from MS-Word to PDF (MS-Office must be installed on Server)
        try
        {
            oPDF.WordToPDF(Server.MapPath("files/Sample_Letter.docx"), 
            Server.MapPath("files/WordToPDF.pdf"), false);
        }
        catch (Exception erm)
        {
            Console.Write(erm.Message.ToString());
        }

        String eventTemplate = Server.MapPath("files/Sample1.pdf"); //-Already Exists in folder
        String SinglePreview = Server.MapPath("files/Sample2.pdf");
        String PDFPreview = Server.MapPath("files/Sample3.pdf");
        String PDFPreview1 = Server.MapPath("files/htmlpdf.pdf");  //- Created-NEW
        String PDFPreview2 = Server.MapPath("files/ExportImg.pdf"); //- Created-NEW
        String PDFPreview3 = Server.MapPath("files/WordToPDF.pdf"); //- Created-NEW

        

        String[] aFiles = new String[6];
        aFiles[0] = eventTemplate;
        aFiles[1] = SinglePreview;
        aFiles[2] = PDFPreview;        
        aFiles[3] = PDFPreview1;
        aFiles[4] = PDFPreview2;
        aFiles[5] = PDFPreview3;


        if (System.IO.File.Exists((String)eventTemplate))
        {   
            //- Merge all PDF Created into one single PDF.
            if (oPDF.MergePDFs(aFiles, Server.MapPath("export/Export.pdf")))
            {                
               
            }
        }
        //- SHow the single merged pdf here.
        if (System.IO.File.Exists(Server.MapPath("export/Export.pdf")))
        {
            //- Display it.
            Response.Clear();
            Response.ContentType = "application/pdf";
            Response.AddHeader("Content-Disposition", "attachment; filename=Export.pdf");
            Response.WriteFile("~/export/Export.pdf");
            Response.End();
        }
    }        
    
}