using ComPDFKit.PDFDocument;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;
using static System.Net.Mime.MediaTypeNames;

namespace HeaderFooterTest
{
    internal class HeaderFooterTest
    {
        private static string outputPath = Path.GetDirectoryName(Path.GetDirectoryName(Path.GetDirectoryName(System.IO.Directory.GetCurrentDirectory()))) + "\\Output\\HeaderFooter";

        private static Dictionary<int, string> IntToLocateDic = new Dictionary<int, string>()
        {
            {0, "Top Left" },
            {1, "Top Middle" },
            {2, "Top Right" },
            {3, "Bottom Left" },
            {4, "Bottom Middle" },
            {5, "Bottom Right" }
        };

        static void Main(string[] args)
        {
            SDKLicenseHelper.LicenseVerify();

            CPDFDocument document = CPDFDocument.InitWithFilePath("Blank Page.pdf");

            if (!Directory.Exists(outputPath))
            {
                Directory.CreateDirectory(outputPath);
            }

            #region Add common header and footer
            if (AddCommonHeaderFooter(document))
            {
                Console.WriteLine("Add common header and footer done.");
            }
            else
            {
                Console.WriteLine("Add common header and footer failed.");
            } 
            #endregion
            Console.WriteLine("--------------------");
            #region Add page header and footer 
            if (AddPageHeaderFooter(document))
            {
                Console.WriteLine("Add page header and footer done.");
            }
            else
            {
                Console.WriteLine("Add page header and footer failed.");
            } 
            #endregion
            Console.WriteLine("--------------------");

            #region Edit header and footer 
            if (EditHeaderFooter(document))
            {
                Console.WriteLine("Edit header and footer done.");
            }
            else
            {
                Console.WriteLine("Edit header and footer failed.");
            } 
            #endregion
            Console.WriteLine("--------------------");

            #region Delete header and footer 
            if (DeleteHeaderFooter(document))
            {
                Console.WriteLine("Delete header and footer done.\n");
            }
            else
            {
                Console.WriteLine("delete header and footer failed\n");
            }
            Console.WriteLine();
            #endregion

            Console.ReadLine();
        }

        /// <summary>
        /// Follow these steps to add a header and footer in a blank pages file.  
        /// </summary>
        /// <param name="document">Documents that require manipulation</param>
        private static bool AddCommonHeaderFooter(CPDFDocument document)
        {

            // Init HeaderFooter
            CPDFHeaderFooter headerFooter = document.GetHeaderFooter();
            for (int i = 0; i <= 2; i++)
            {
                // Set Text: ComPDFKit
                headerFooter.SetText(i, "ComPDFKit");
                // Set page index: all the page
                headerFooter.SetPages("0-" + (document.PageCount - 1));
                // Set color : red
                byte[] color = { 255, 0, 0 };
                headerFooter.SetTextColor(i, color);
                // Set font size : 14
                headerFooter.SetFontSize(i, 14);


                Console.WriteLine("Text: {0}", headerFooter.GetText(i));
                Console.WriteLine("Location: {0}\n", IntToLocateDic[i]);
            }

            // Update HeaderFooter
            headerFooter.Update();

            // Save to pointed path so you can observe the effect.
            string addHeaderFooterPath = outputPath + "\\AddCommonHeaderFooterTest.pdf";

            if (document.WriteToFilePath(addHeaderFooterPath))
            {
                Console.WriteLine("Browse the changed file in " + addHeaderFooterPath);
                return true;
            }
            else
            {
                return false;
            }
        }

        private static bool AddPageHeaderFooter(CPDFDocument document)
        {
            // Init HeaderFooter
            CPDFHeaderFooter headerFooter = document.GetHeaderFooter();
            for (int i = 3; i <= 5; i++)
            {
                // Set Text: 1
                headerFooter.SetText(i, "<<1,2>>");
                // Set page index: all the page
                headerFooter.SetPages("0-" + (document.PageCount - 1));
                // Set color : red
                byte[] color = { 255, 0, 0 };
                headerFooter.SetTextColor(i, color);
                // Set font size : 14
                headerFooter.SetFontSize(i, 14);

                Console.WriteLine("Text: {0}", headerFooter.GetText(i));
                Console.WriteLine("Location: {0}\n", IntToLocateDic[i]);
            }
            // Update HeaderFooter
            headerFooter.Update();

            // Save to pointed path so you can observe the effect.
            string addHeaderFooterPath = outputPath + "\\AddPageHeaderFooterTest.pdf";

            if (document.WriteToFilePath(addHeaderFooterPath))
            {
                Console.WriteLine("Browse the changed file in " + addHeaderFooterPath);
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        ///  Follow these steps to delete a header and footer in a blank pages file.  
        /// </summary>
        /// <param name="document">Documents that require manipulation</param>
        private static bool EditHeaderFooter(CPDFDocument document)
        {
            CPDFHeaderFooter headerFooter = document.GetHeaderFooter();

            if (headerFooter.GetText(0) != string.Empty)
            {
                Console.WriteLine("Get old head and footer 0 succeeded, text is {0}", headerFooter.GetText(0));
            }
            else
            {
                Console.WriteLine("Get head and footer 0 failed");
                return false;
            }

            headerFooter.SetText(0, "ComPDFKit Samples");

            headerFooter.Update();

            Console.WriteLine("Change head and footer 0 succeeded, new text is {0}", headerFooter.GetText(0));

            string editHeaderFooterPath = outputPath + "\\EditHeaderFooterTest.pdf";

            if (document.WriteToFilePath(editHeaderFooterPath))
            {
                Console.WriteLine("Browse the changed file in " + editHeaderFooterPath);
                return true;
            }
            else
            {
                return false;
            }
        }

        private static bool DeleteHeaderFooter(CPDFDocument document)
        {
            CPDFHeaderFooter headerFooter = document.GetHeaderFooter();

            headerFooter.Clear();

            string deleteHeaderFooterPath = outputPath + "\\DeleteHeaderFooterTest.pdf";

            if (document.WriteToFilePath(deleteHeaderFooterPath))
            {
                Console.WriteLine("Browse the changed file in " + deleteHeaderFooterPath);
                return true;
            }
            else
            {
                return false;
            }
        }
    }
}