using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;

using TransCore.Common.Drawing;

namespace CreateAnimatedGif
{
    class Program
    {
        static void Main(string[] args)
        {
            #region Old class

            Console.WriteLine("Begin AnimatedGifEncoder Test");
            DateTime beginTime = DateTime.Now;

            AnimatedGifEncoder animatedGifEncoder = new AnimatedGifEncoder();
            animatedGifEncoder.SetDelay(3000);

            animatedGifEncoder.Start("C:\\TestProjects\\AnimatedGif\\CreateAnimatedGif\\Output\\oldAnimated.gif");
            foreach (string fileName in Directory.GetFiles("C:\\TestProjects\\AnimatedGif\\CreateAnimatedGif\\Data"))
            {
                using (var image = Image.FromFile(fileName))
                {
                    animatedGifEncoder.AddFrame(image);
                }
            }
            animatedGifEncoder.Finish();
            
            Console.WriteLine("Time to create animated gif: {0}", DateTime.Now.Subtract(beginTime).ToString());

            #endregion

            #region New class

            string[] imageFiles = Directory.GetFiles("C:\\TestProjects\\AnimatedGif\\CreateAnimatedGif\\Data");

            Console.WriteLine("\nBegin ImageUtility Test");
            beginTime = DateTime.Now;

            ImageUtility imageUtility = new ImageUtility();
            imageUtility.CreateAnimatedGif("C:\\TestProjects\\AnimatedGif\\CreateAnimatedGif\\Output\\newAnimated.gif", imageFiles);
            //imageUtility.CreateAnimatedGif("C:\\TestProjects\\AnimatedGif\\CreateAnimatedGif\\Output\\newAnimated.gif", imageFiles, 3, 100);

            Console.WriteLine("Time to create animated gif: {0}", DateTime.Now.Subtract(beginTime).ToString());

            #endregion

            #region Compare files

            if (1 == 0)
            {
                FileStream fileStream = new FileStream("C:\\TestProjects\\AnimatedGif\\CreateAnimatedGif\\Output\\oldAnimated.gif", FileMode.Open);
                byte[] oldGifArray = new byte[fileStream.Length];
                fileStream.Read(oldGifArray, 0, (int)fileStream.Length);
                fileStream.Dispose();

                fileStream = new FileStream("C:\\TestProjects\\AnimatedGif\\CreateAnimatedGif\\Output\\newAnimated.gif", FileMode.Open);
                byte[] newGifArray = new byte[fileStream.Length];
                fileStream.Read(newGifArray, 0, (int)fileStream.Length);
                fileStream.Dispose();

                int idx = 0;
                do
                {
                    Console.WriteLine("\n\n\tOld File\t\tNew File");
                    for (int count = 0; count < 30; count++)
                    {
                        string log = string.Format("{0}\t{1}\t\t{2}", idx, (idx < oldGifArray.Length ? oldGifArray[idx].ToString() : ""), 
                                                                    ("\t\t" + (idx < newGifArray.Length ? newGifArray[idx].ToString() : "")));
                        Console.WriteLine(log);

                        ++idx;
                    }

                    Console.WriteLine("\nPress any key to continue");
                    Console.ReadKey(true);
                } while (idx < oldGifArray.Length || idx < newGifArray.Length);
            }

            #endregion

            Console.WriteLine("\nPress any key to close console window.");
            Console.ReadKey(true);
        }
    }
}