using Microsoft.Reporting.WinForms;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Printing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace BiskLog_Point_Of_Sale.Classes
{
    public static class ReportConfig
    {
        private static List<Stream> m_streams;
        private static int m_currentPageIndex = 0;
       static string printLocation = "";
       static string ReportPrinterName ="";
        public static void PrintToPrinter(LocalReport report, string printLoc = null, string PrinterName = null)
        {
            printLocation = printLoc;
            ReportPrinterName = PrinterName;
            Export(report);

        }

        public static void Export(LocalReport report, bool print = true)
        {
            string deviceInfo =
             @"<DeviceInfo>
                <OutputFormat>EMF</OutputFormat>
                <PageWidth>8.27in</PageWidth>
                <PageHeight>11.69in</PageHeight>
                <MarginTop>0.7874in</MarginTop>
                <MarginLeft>0.7874in</MarginLeft>
                <MarginRight>0.7874in</MarginRight>
                <MarginBottom>0.7874in</MarginBottom>
            </DeviceInfo>";
            Warning[] warnings;
            m_streams = new List<Stream>();
            report.Render("Image", deviceInfo, CreateStream, out warnings);
            foreach (Stream stream in m_streams)
                stream.Position = 0;

            if (print)
            {
                Print();
            }
        }


        public static void Print()
        {
            try
            {
                //    if (m_streams == null || m_streams.Count == 0)
                //      throw new Exception("Error: no stream to print.");
                PrintDocument printDoc = new PrintDocument();
                if (!String.IsNullOrEmpty(printLocation))
                {
                    PrinterSettings printersettings = new PrinterSettings()
                    {
                        PrinterName = ReportPrinterName,
                        PrintToFile = true,
                        PrintFileName = printLocation ,
                    };
                    printDoc.PrinterSettings = printersettings;
                }
                else
                {
                    PrinterSettings printersettings = new PrinterSettings()
                    {
                        PrinterName = ReportPrinterName,
                        PrintToFile = false,
                    };
                    printDoc.PrinterSettings = printersettings;
                }

                //if (!printDoc.PrinterSettings.IsValid)
                //{
                //   throw new Exception("Error: cannot find the default printer.");
                //}
                //else
                // {
                printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
                m_currentPageIndex = 0;
                printDoc.Print();
                //}
            }
            catch(Exception ex)
            {

                ErrorLogging.WriteToFile(ex.ToString());

            }
        }

        public static Stream CreateStream(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek)
        {
            Stream stream = new MemoryStream();
            m_streams.Add(stream);
            return stream;
        }

        public static void PrintPage(object sender, PrintPageEventArgs ev)
        {
            Metafile pageImage = new
               Metafile(m_streams[m_currentPageIndex]);

            // Adjust rectangular area with printer margins.
            Rectangle adjustedRect = new Rectangle(
                ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
                ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
                ev.PageBounds.Width,
                ev.PageBounds.Height);

            // Draw a white background for the report
            ev.Graphics.FillRectangle(Brushes.White, adjustedRect);

            // Draw the report content
            ev.Graphics.DrawImage(pageImage, adjustedRect);

            // Prepare for the next page. Make sure we haven't hit the end.
            m_currentPageIndex++;
            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
        }

        public static void DisposePrint()
        {
            if (m_streams != null)
            {
                foreach (Stream stream in m_streams)
                    stream.Close();
                m_streams = null;
            }
        }
    }
}