using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Threading;
using ICSharpCode.SharpZipLib.Zip;

using System.Drawing.Imaging;
namespace WmPhotoZipper{
	/// <summary>
	/// This tiny, but powerfull tool will prevent a enormous load of help
	/// calls. It replaces the FTP upload system by zipping photo's and rezising them
	/// before they are sent to the WMIT servers. This reduces the load of our machines
	/// as well. Oh we are sooo happy.
	/// 14 july 2006
	/// 
	/// Update @ 17th november 2007. The zipper worked very well, but now more is demanded,
	/// more and more megapixel camera's are being used by the customers and the original ZIP
	/// lib did not work under Vista. Therefore version 2, optimized for .NET 2.0 was created using
	/// SharpZipLib. It uses the new BackgroundWorker process for zipping and resizing. 
	/// 17th nov 2007 - Willem
    /// 
    /// Update @ 29 august 2008. The zipper still performs very well. Updated the binary to work nice
    /// with the new Core Manager series. Since both bandwidth as server capacity has increased, I
    /// updated the resolution to 1000x1000 pixels (was 800x800). The new "javascript" way to show images
    /// is allowing us to use higher res photo's withouth breaking the interface.
	/// </summary>
	public class MainForm : System.Windows.Forms.Form{
		private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog;
		private System.Windows.Forms.Button chooseFolderButton;
		private System.Windows.Forms.Label instructionLbl;
		private System.Windows.Forms.GroupBox instructionsBox;
		private System.Windows.Forms.GroupBox selectFolderBox;
		private System.Windows.Forms.GroupBox processingBox;
		private System.Windows.Forms.ProgressBar progressBar;
		private System.Windows.Forms.Label selectFolderInstructionsLbl;
		private System.Windows.Forms.Label selectResultsLbl;
		private System.Windows.Forms.Label amountPhotosInstructionLbl;
		private System.Windows.Forms.Label photoCountLbl;
		private System.Windows.Forms.Button zipPhotosButton;
		private System.ComponentModel.Container components = null;
		
		
		private BackgroundWorker photoZipper;
		
		protected string myPicturesPath;
		protected string desktopPath;
		protected string photoPath;
		protected string targetPath;
		private Label copyrightLbl;
		protected string tmpPath;

		public MainForm(){
			InitializeComponent();
			
			desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
			targetPath = desktopPath + "\\ingepakte_fotos.zip";
			myPicturesPath = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
			folderBrowserDialog.SelectedPath	= myPicturesPath;

			copyrightLbl.Text = "V"+System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();
		}

	

		protected override void Dispose( bool disposing ){
			if( disposing ){
				if (components != null) {
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(MainForm));
			this.folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();
			this.chooseFolderButton = new System.Windows.Forms.Button();
			this.instructionLbl = new System.Windows.Forms.Label();
			this.instructionsBox = new System.Windows.Forms.GroupBox();
			this.selectFolderBox = new System.Windows.Forms.GroupBox();
			this.photoCountLbl = new System.Windows.Forms.Label();
			this.amountPhotosInstructionLbl = new System.Windows.Forms.Label();
			this.selectResultsLbl = new System.Windows.Forms.Label();
			this.selectFolderInstructionsLbl = new System.Windows.Forms.Label();
			this.processingBox = new System.Windows.Forms.GroupBox();
			this.zipPhotosButton = new System.Windows.Forms.Button();
			this.progressBar = new System.Windows.Forms.ProgressBar();
			this.photoZipper = new System.ComponentModel.BackgroundWorker();
			this.copyrightLbl = new System.Windows.Forms.Label();
			this.instructionsBox.SuspendLayout();
			this.selectFolderBox.SuspendLayout();
			this.processingBox.SuspendLayout();
			this.SuspendLayout();
			// 
			// folderBrowserDialog
			// 
			this.folderBrowserDialog.Description = "Selecteer de map met foto\'s die u wilt inpakken.";
			this.folderBrowserDialog.ShowNewFolderButton = false;
			// 
			// chooseFolderButton
			// 
			this.chooseFolderButton.Location = new System.Drawing.Point(104, 32);
			this.chooseFolderButton.Name = "chooseFolderButton";
			this.chooseFolderButton.Size = new System.Drawing.Size(120, 23);
			this.chooseFolderButton.TabIndex = 0;
			this.chooseFolderButton.Text = "Kies map met foto\'s";
			this.chooseFolderButton.Click += new System.EventHandler(this.chooseFolderButton_Click);
			// 
			// instructionLbl
			// 
			this.instructionLbl.Location = new System.Drawing.Point(8, 16);
			this.instructionLbl.Name = "instructionLbl";
			this.instructionLbl.Size = new System.Drawing.Size(320, 40);
			this.instructionLbl.TabIndex = 1;
			this.instructionLbl.Text = "De foto inpakker helpt u bij het klaarmaken van een ZIP bestand voor de Manager. " +
				"U kunt de ingepakte map met foto\'s direct gebruiken in uw Manager.";
			// 
			// instructionsBox
			// 
			this.instructionsBox.Controls.Add(this.instructionLbl);
			this.instructionsBox.Location = new System.Drawing.Point(8, 8);
			this.instructionsBox.Name = "instructionsBox";
			this.instructionsBox.Size = new System.Drawing.Size(336, 64);
			this.instructionsBox.TabIndex = 2;
			this.instructionsBox.TabStop = false;
			this.instructionsBox.Text = "Introductie";
			// 
			// selectFolderBox
			// 
			this.selectFolderBox.Controls.Add(this.photoCountLbl);
			this.selectFolderBox.Controls.Add(this.amountPhotosInstructionLbl);
			this.selectFolderBox.Controls.Add(this.selectResultsLbl);
			this.selectFolderBox.Controls.Add(this.selectFolderInstructionsLbl);
			this.selectFolderBox.Controls.Add(this.chooseFolderButton);
			this.selectFolderBox.Location = new System.Drawing.Point(8, 80);
			this.selectFolderBox.Name = "selectFolderBox";
			this.selectFolderBox.Size = new System.Drawing.Size(336, 112);
			this.selectFolderBox.TabIndex = 3;
			this.selectFolderBox.TabStop = false;
			this.selectFolderBox.Text = "Map Selecteren";
			// 
			// photoCountLbl
			// 
			this.photoCountLbl.Enabled = false;
			this.photoCountLbl.Location = new System.Drawing.Point(224, 80);
			this.photoCountLbl.Name = "photoCountLbl";
			this.photoCountLbl.Size = new System.Drawing.Size(100, 16);
			this.photoCountLbl.TabIndex = 4;
			this.photoCountLbl.Text = "0";
			this.photoCountLbl.TextAlign = System.Drawing.ContentAlignment.TopRight;
			// 
			// amountPhotosInstructionLbl
			// 
			this.amountPhotosInstructionLbl.Enabled = false;
			this.amountPhotosInstructionLbl.Location = new System.Drawing.Point(8, 80);
			this.amountPhotosInstructionLbl.Name = "amountPhotosInstructionLbl";
			this.amountPhotosInstructionLbl.Size = new System.Drawing.Size(160, 16);
			this.amountPhotosInstructionLbl.TabIndex = 3;
			this.amountPhotosInstructionLbl.Text = "Aantal foto\'s gevonden in map:";
			// 
			// selectResultsLbl
			// 
			this.selectResultsLbl.Enabled = false;
			this.selectResultsLbl.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
			this.selectResultsLbl.Location = new System.Drawing.Point(8, 64);
			this.selectResultsLbl.Name = "selectResultsLbl";
			this.selectResultsLbl.Size = new System.Drawing.Size(312, 16);
			this.selectResultsLbl.TabIndex = 2;
			this.selectResultsLbl.Text = "Geen map geselecteerd.";
			// 
			// selectFolderInstructionsLbl
			// 
			this.selectFolderInstructionsLbl.Location = new System.Drawing.Point(8, 16);
			this.selectFolderInstructionsLbl.Name = "selectFolderInstructionsLbl";
			this.selectFolderInstructionsLbl.Size = new System.Drawing.Size(256, 16);
			this.selectFolderInstructionsLbl.TabIndex = 1;
			this.selectFolderInstructionsLbl.Text = "Selecteer de map met foto\'s die u wilt inpakken:";
			// 
			// processingBox
			// 
			this.processingBox.Controls.Add(this.zipPhotosButton);
			this.processingBox.Controls.Add(this.progressBar);
			this.processingBox.Enabled = false;
			this.processingBox.Location = new System.Drawing.Point(8, 208);
			this.processingBox.Name = "processingBox";
			this.processingBox.Size = new System.Drawing.Size(336, 80);
			this.processingBox.TabIndex = 4;
			this.processingBox.TabStop = false;
			this.processingBox.Text = "Map Inpakken";
			// 
			// zipPhotosButton
			// 
			this.zipPhotosButton.Location = new System.Drawing.Point(104, 16);
			this.zipPhotosButton.Name = "zipPhotosButton";
			this.zipPhotosButton.Size = new System.Drawing.Size(120, 23);
			this.zipPhotosButton.TabIndex = 1;
			this.zipPhotosButton.Text = "Foto\'s Inpakken";
			this.zipPhotosButton.Click += new System.EventHandler(this.zipPhotosButton_Click);
			// 
			// progressBar
			// 
			this.progressBar.Location = new System.Drawing.Point(8, 48);
			this.progressBar.Name = "progressBar";
			this.progressBar.Size = new System.Drawing.Size(320, 23);
			this.progressBar.TabIndex = 0;
			// 
			// photoZipper
			// 
			this.photoZipper.WorkerReportsProgress = true;
			this.photoZipper.DoWork += new System.ComponentModel.DoWorkEventHandler(this.photoZipper_DoWork);
			this.photoZipper.RunWorkerCompleted += new System.ComponentModel.RunWorkerCompletedEventHandler(this.photoZipper_RunWorkerCompleted);
			this.photoZipper.ProgressChanged += new System.ComponentModel.ProgressChangedEventHandler(this.photoZipper_ProgressChanged);
			// 
			// copyrightLbl
			// 
			this.copyrightLbl.Enabled = false;
			this.copyrightLbl.Font = new System.Drawing.Font("Microsoft Sans Serif", 6F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
			this.copyrightLbl.Location = new System.Drawing.Point(288, 292);
			this.copyrightLbl.Name = "copyrightLbl";
			this.copyrightLbl.Size = new System.Drawing.Size(51, 9);
			this.copyrightLbl.TabIndex = 5;
			this.copyrightLbl.Text = "v2.x";
			this.copyrightLbl.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
			// 
			// MainForm
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(352, 303);
			this.Controls.Add(this.copyrightLbl);
			this.Controls.Add(this.processingBox);
			this.Controls.Add(this.selectFolderBox);
			this.Controls.Add(this.instructionsBox);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "MainForm";
			this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "WMIT Foto Inpakker ";
			this.instructionsBox.ResumeLayout(false);
			this.selectFolderBox.ResumeLayout(false);
			this.processingBox.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		[STAThread]
		static void Main(){
			Application.Run(new MainForm());
		}

		private void chooseFolderButton_Click(object sender, System.EventArgs e) {
			if(DialogResult.OK == folderBrowserDialog.ShowDialog()){
				this.amountPhotosInstructionLbl.Enabled	= true;
				this.photoCountLbl.Enabled			= true;
				this.selectResultsLbl.Enabled		= true;
				string selectedFolderText			= folderBrowserDialog.SelectedPath;
				int maxLength	= 50;
				if(selectedFolderText.Length>maxLength){
					selectedFolderText = "..."+selectedFolderText.Substring(selectedFolderText.Length-maxLength,maxLength);
				}
				this.selectResultsLbl.Text			= selectedFolderText;
				if(checkFolderForPhotoFiles(folderBrowserDialog.SelectedPath)){
					this.processingBox.Enabled		= true;
					this.zipPhotosButton.BackColor	= Color.LightGreen;
				}else{
					this.processingBox.Enabled		= false;
					this.zipPhotosButton.BackColor	= Color.Empty;
					MessageBox.Show("Sorry, maar in de geselecteerde map kan ik geen foto's vinden.","Geen foto's gevonden",MessageBoxButtons.OK,MessageBoxIcon.Exclamation);
				}
			}
		}

		protected bool checkFolderForPhotoFiles(string folderPath){
			int amountPhotos	= 0;
			amountPhotos		+= Directory.GetFiles(folderPath,"*.jpg").Length;
			amountPhotos		+= Directory.GetFiles(folderPath,"*.png").Length;
			amountPhotos		+= Directory.GetFiles(folderPath,"*.jpeg").Length;
			amountPhotos		+= Directory.GetFiles(folderPath,"*.bmp").Length;
			photoCountLbl.Text	= amountPhotos.ToString();
			return (amountPhotos > 0);
		}

		private void zipPhotosButton_Click(object sender, System.EventArgs e) {
			#region Clear any exsisting file, or return with a message
			if (File.Exists(targetPath)) {
				if (DialogResult.Yes == MessageBox.Show("Er staat nog een (oude) ZIP met ingepakte foto's op uw bureaublad." + System.Environment.NewLine + "Wilt u dat ik deze overschrijf?", "Bestaande ZIP gevonden", MessageBoxButtons.YesNo, MessageBoxIcon.Question)) {
					try {
						File.Delete(targetPath);
					} catch {
						MessageBox.Show("Helaas, het bestand kan niet worden overschreven." + System.Environment.NewLine + "Controleer of het bestand niet wordt gebruikt door een ander programma.", "Bestand Geblokkeerd", MessageBoxButtons.OK, MessageBoxIcon.Error);
						return;
					}
				} else {
					return;
				}
			}
			#endregion
			photoPath = folderBrowserDialog.SelectedPath;
			zipPhotosButton.Enabled = false;
			chooseFolderButton.Enabled = false;
			photoZipper.RunWorkerAsync();
		}

		private void photoZipper_DoWork(object sender, DoWorkEventArgs e) {
			string tmpPath = Path.GetTempPath() + "\\WMITPhotoZipper-" + DateTime.Now.Ticks;
			
			try {
				Directory.CreateDirectory(tmpPath);
			} catch (Exception error) {
				MessageBox.Show("Het lukte niet om de foto\'s in te pakken. Er kon geen tijdelijke map worden aangemaakt: " + Environment.NewLine + tmpPath + Environment.NewLine + "Uw computer gaf de volgende melding: " + Environment.NewLine + error.Message, "Fout bij inpakken foto's", MessageBoxButtons.OK, MessageBoxIcon.Error);
				return;
			}

			Directory.SetCurrentDirectory(photoPath);
			string[] photoFiles = Directory.GetFiles(photoPath);
			int totalFiles = photoFiles.Length;

			// Stage one: resizing the photo's
			for (int i = 0; i <= photoFiles.GetUpperBound(0); i++) {
				string fileName = Path.GetFileName(photoFiles[i]);

				string file = photoFiles[i];
				if (isPhoto(file)) {
					// First create small version of image:
					reziseImage(file, tmpPath);

					photoZipper.ReportProgress(getPhotoProgressPercentage(totalFiles,i));
					Thread.Sleep(10);
				}
			}
			photoZipper.ReportProgress(100);

			// Stage two: zipping the folder
			FastZip fastZip = new FastZip();
			fastZip.CreateZip(targetPath, tmpPath, false,null);

			Directory.Delete(tmpPath,true);
		}

		protected int getPhotoProgressPercentage(int totalPhotos, int currentIndex) {
			double processed = currentIndex;
			double total = totalPhotos;
			double percentage = processed / total;
			percentage = Math.Round(percentage * 100);
			return System.Convert.ToInt32(percentage);
		}

		protected bool isPhoto(string path) {
			path = path.ToLower();
			return (path.EndsWith(".jpg") ||
				path.EndsWith(".jpeg") ||
				path.EndsWith(".bmp") ||
				path.EndsWith(".png"));
		}

		private void photoZipper_ProgressChanged(object sender, ProgressChangedEventArgs e) {
			progressBar.Value = e.ProgressPercentage;
		}

		protected void reziseImage(string filePath, string targetPath) {
			System.IO.FileStream photoStream;
			Bitmap image;

			// Create bitmap in memory and delete original photo file
			photoStream = new System.IO.FileStream(filePath, System.IO.FileMode.Open, System.IO.FileAccess.Read);

			try {
				image = (Bitmap)Bitmap.FromStream(photoStream);
				image = resizeImage(image, 1000, 1000, false);

				// Save bitmap as thumbnail image
				targetPath = targetPath + "//" + Path.GetFileName(filePath);
				SaveJPGWithCompressionSetting(image, targetPath, 85);
			} catch {

			} finally {
				photoStream.Close();
			}
		}

		/// <summary>
		/// Returns the image codec info of the specified mimeType (JPG)
		/// </summary>
		/// <param name="mimeType"></param>
		/// <returns></returns>
		public ImageCodecInfo GetEncoderInfo(String mimeType) {
			int j;
			ImageCodecInfo[] encoders;
			encoders = ImageCodecInfo.GetImageEncoders();
			for (j = 0; j < encoders.Length; ++j) {
				if (encoders[j].MimeType == mimeType)
					return encoders[j];
			}
			return null;
		}

		/// <summary>
		/// Saves an image with JPG compression.
		/// </summary>
		/// <param name="image">Image to save</param>
		/// <param name="szFileName">Destination file name</param>
		/// <param name="lCompression">Amount of compression</param>
		public void SaveJPGWithCompressionSetting(System.Drawing.Image image, string
			szFileName, long lCompression) {
			EncoderParameters eps = new EncoderParameters(1);
			eps.Param[0] = new EncoderParameter(Encoder.Quality, lCompression);
			ImageCodecInfo ici = GetEncoderInfo("image/jpeg");

			image.Save(szFileName, ici, eps);
		}

		/// <summary>
		/// Resizes an image to a given size. Use cropping to force image to be that size 
		/// </summary>
		/// <param name="image">image object to resize</param>
		/// <param name="maxWidth">Maximum width in pixels</param>
		/// <param name="maxHeight">Maximum height in pixels</param>
		/// <param name="crop">If true, the image will return in the given pixel size </param>
		/// <returns></returns>
		public Bitmap resizeImage(Bitmap image, int maxWidth, int maxHeight, bool crop) {
			int height;
			int width;

			if (!crop) {
				if (image.Width > maxWidth || image.Height > maxHeight) {
					// determine which exeecds the most: width or height
					double oversizeWidthRatio = ((double)image.Width / maxWidth);
					double oversizeHeightRatio = ((double)image.Height / maxHeight);

					if (((double)image.Width / maxWidth) > ((double)image.Height / maxHeight)) {
						// width is larger and therefore width needs to be decreased
						double ratio = (double)image.Width / image.Height;
						width = maxWidth;
						height = Convert.ToInt32((double)width / ratio);
					} else {
						// height is larger and therefore needs to be decreased
						double ratio = (double)image.Width / image.Height;
						height = maxHeight;
						width = Convert.ToInt32((double)height * ratio);
					}

					// Newly added high quality resizing:
					Bitmap bitmap = new Bitmap(width, height, image.PixelFormat);
					Graphics newG = Graphics.FromImage(bitmap);

					newG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
					newG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;

					// Draw 3 times to prevent "black border"
					newG.DrawImage(image, 0, 0, bitmap.Width, bitmap.Height);
					newG.DrawImage(image, 0, 0, bitmap.Width, bitmap.Height);
					newG.DrawImage(image, 0, 0, bitmap.Width, bitmap.Height);

					newG.Dispose();
					return bitmap;
				} else {
					height = image.Height;
					width = image.Width;
					return new Bitmap(image, width, height);
				}
			} else {
				// CROP MODUS
				RectangleF rect = new RectangleF(0, 0, maxWidth, maxHeight);
				int startX = 0;
				int startY = 0;

				if (((double)image.Width / maxWidth) < ((double)image.Height / maxHeight)) {
					// width is smaller and therefore we use this one as ijkpunt.
					double ratio = (double)image.Width / image.Height;
					width = maxWidth;
					height = Convert.ToInt32((double)width / ratio);

					Bitmap tmp = new Bitmap(width, height, image.PixelFormat);
					Graphics newG = Graphics.FromImage(tmp);
					newG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
					newG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;

					// Draw 3 times to prevent "black border"
					newG.DrawImage(image, 0, 0, tmp.Width, tmp.Height);
					newG.DrawImage(image, 0, 0, tmp.Width, tmp.Height);
					newG.DrawImage(image, 0, 0, tmp.Width, tmp.Height);
					image.Dispose();
					newG.Dispose();

					// Find out how many pixels need to be cropped 
					startY = (int)System.Math.Floor((double)((tmp.Height - maxHeight) / 2));

					Rectangle sourceRectangle = new Rectangle(startX, startY, tmp.Width, maxHeight);
					return tmp.Clone(sourceRectangle, PixelFormat.DontCare);

				} else {
					// height is smaller and therefore needs to be decreased
					double ratio = (double)image.Width / image.Height;
					height = maxHeight;
					width = Convert.ToInt32((double)height * ratio);


					Bitmap tmp = new Bitmap(width, height, image.PixelFormat);
					Graphics newG = Graphics.FromImage(tmp);
					newG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
					newG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;

					// Draw 3 times to prevent "black border"
					newG.DrawImage(image, 0, 0, tmp.Width, tmp.Height);
					newG.DrawImage(image, 0, 0, tmp.Width, tmp.Height);
					newG.DrawImage(image, 0, 0, tmp.Width, tmp.Height);

					newG.Dispose();

					// Find out how many pixels need to be cropped 
					startX = (int)System.Math.Floor((double)((tmp.Width - maxWidth) / 2));

					Rectangle sourceRectangle = new Rectangle(startX, startY, maxWidth, height);
					return tmp.Clone(sourceRectangle, PixelFormat.DontCare);

				}

			}

		}

		private void photoZipper_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) {
			MessageBox.Show("Goed nieuws, de foto's zijn ingepakt en opgeslagen op uw bureaublad als \"ingepakte_fotos.zip\"." + System.Environment.NewLine + "U kunt nu verder met uw Manager.", "Klaar", MessageBoxButtons.OK, MessageBoxIcon.Information);
			Application.Exit();
		}

	
	}
}