using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;

namespace WindowsApplication1
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label10;
		private System.Windows.Forms.Button button1;
		string fileName=null;
		private System.Windows.Forms.Label label11;
		private System.Windows.Forms.Button button2;
		string line=null;
		string output=null;
		int lines=0;
		string temp2=null;
		int i=1;
		int three=0;
		string[] final=null;
		string[] finalOutput1=null;
		string[] finalOutput=null;
		int length=0;
		string inputLine=null;
		string whichDataAddress=null;
		private System.Windows.Forms.Label label12;
		private System.Windows.Forms.Button button3;
		string fileToWrite=null;
		private System.Windows.Forms.RichTextBox poorTextBox9;
		private System.Windows.Forms.RichTextBox poorTextBox11;
		private System.Windows.Forms.Button button4;
		int labelx=8;
		int richTextBoxx=184;
		int y=104;
		int checkBoxLocationX=368;
		int checkBoxLocationY=448;
		Label label;
		RichTextBox richTextBox;
		CheckBox checkBox;
		int noOfForLoop=0;
		private System.Windows.Forms.Label label2;
		int noOfTextBoxes=0;


		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		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()
		{
			this.label1 = new System.Windows.Forms.Label();
			this.label10 = new System.Windows.Forms.Label();
			this.poorTextBox9 = new System.Windows.Forms.RichTextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.label11 = new System.Windows.Forms.Label();
			this.button2 = new System.Windows.Forms.Button();
			this.label12 = new System.Windows.Forms.Label();
			this.poorTextBox11 = new System.Windows.Forms.RichTextBox();
			this.button3 = new System.Windows.Forms.Button();
			this.button4 = new System.Windows.Forms.Button();
			this.label2 = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Font = new System.Drawing.Font("Comic Sans MS", 20.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label1.Location = new System.Drawing.Point(128, 16);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(688, 56);
			this.label1.TabIndex = 0;
			this.label1.Text = "The Code That Works, like the degree that works ;)";
			// 
			// label10
			// 
			this.label10.Font = new System.Drawing.Font("Comic Sans MS", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label10.Location = new System.Drawing.Point(360, 96);
			this.label10.Name = "label10";
			this.label10.Size = new System.Drawing.Size(200, 40);
			this.label10.TabIndex = 17;
			this.label10.Text = "The file to be opened is:-";
			// 
			// poorTextBox9
			// 
			this.poorTextBox9.Location = new System.Drawing.Point(632, 96);
			this.poorTextBox9.Name = "poorTextBox9";
			this.poorTextBox9.Size = new System.Drawing.Size(328, 32);
			this.poorTextBox9.TabIndex = 18;
			this.poorTextBox9.Text = "";
			this.poorTextBox9.KeyDown += new System.Windows.Forms.KeyEventHandler(this.poorTextBox9_KeyDown);
			// 
			// button1
			// 
			this.button1.Font = new System.Drawing.Font("Comic Sans MS", 11.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.button1.Location = new System.Drawing.Point(824, 136);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(136, 40);
			this.button1.TabIndex = 19;
			this.button1.Text = "File Browser!";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// label11
			// 
			this.label11.Font = new System.Drawing.Font("Comic Sans MS", 11.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label11.Location = new System.Drawing.Point(368, 344);
			this.label11.Name = "label11";
			this.label11.Size = new System.Drawing.Size(416, 72);
			this.label11.TabIndex = 20;
			this.label11.Text = "Please mention which Data Address/Addresses have been changed (Please remember th" +
				"at you can change multiple values at a time if you wish).";
			// 
			// button2
			// 
			this.button2.Font = new System.Drawing.Font("Comic Sans MS", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.button2.Location = new System.Drawing.Point(816, 496);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(144, 32);
			this.button2.TabIndex = 22;
			this.button2.Text = "Update the file!";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// label12
			// 
			this.label12.Font = new System.Drawing.Font("Comic Sans MS", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label12.Location = new System.Drawing.Point(360, 208);
			this.label12.Name = "label12";
			this.label12.Size = new System.Drawing.Size(408, 80);
			this.label12.TabIndex = 23;
			this.label12.Text = "The file in which you wish to store new information(Please remember mentioning of" +
				" an already exisiting file would overwrite that file):-";
			// 
			// poorTextBox11
			// 
			this.poorTextBox11.Location = new System.Drawing.Point(784, 224);
			this.poorTextBox11.Name = "poorTextBox11";
			this.poorTextBox11.Size = new System.Drawing.Size(176, 32);
			this.poorTextBox11.TabIndex = 24;
			this.poorTextBox11.Text = "";
			// 
			// button3
			// 
			this.button3.Font = new System.Drawing.Font("Comic Sans MS", 11.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.button3.Location = new System.Drawing.Point(824, 272);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(144, 40);
			this.button3.TabIndex = 25;
			this.button3.Text = "File Browser!";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// button4
			// 
			this.button4.Font = new System.Drawing.Font("Comic Sans MS", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.button4.Location = new System.Drawing.Point(376, 576);
			this.button4.Name = "button4";
			this.button4.Size = new System.Drawing.Size(152, 40);
			this.button4.TabIndex = 26;
			this.button4.Text = "Exit!";
			this.button4.Click += new System.EventHandler(this.button4_Click);
			// 
			// label2
			// 
			this.label2.Font = new System.Drawing.Font("Comic Sans MS", 11.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label2.ForeColor = System.Drawing.Color.Red;
			this.label2.Location = new System.Drawing.Point(368, 160);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(448, 23);
			this.label2.TabIndex = 27;
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.AutoScroll = true;
			this.ClientSize = new System.Drawing.Size(941, 580);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.button4);
			this.Controls.Add(this.button3);
			this.Controls.Add(this.poorTextBox11);
			this.Controls.Add(this.label12);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.label11);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.poorTextBox9);
			this.Controls.Add(this.label10);
			this.Controls.Add(this.label1);
			this.Name = "Form1";
			this.Text = "MIT Lincoln DataSet Parsing Code (Beta Version -- Still Work in Progress on this " +
				"application)";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
		/*This method basically is the event handler for the button that chooses which file do we need to parse
		 * and eventually modify.*/
		private void button1_Click(object sender, System.EventArgs e)
		{
			OpenFileDialog fileChooser=new OpenFileDialog(); //Opens the file dialog
			DialogResult result=fileChooser.ShowDialog(); //Checks the result, if the user hit a OK or Cancel

			if (result == DialogResult.Cancel)
				return;

			fileName=fileChooser.FileName; //Storing the filename of the file choosen by the user in the file dialog

			if (fileName == "" || fileName==null) //Checking if the filename is not empty
				MessageBox.Show("Invalid File Name", "Error",
					MessageBoxButtons.OK, MessageBoxIcon.Error);

			poorTextBox9.Text=fileChooser.FileName; //Showing the filename of the file choosen by the user in the textBox.

			/*This loop basically removes the labels, textboxes, and checkboxes so that if a new file is choosen by
			 * the user has less values or more, it can be adjusted with*/
			for(int o=0;o<noOfForLoop;o++)
			{
				this.Controls.RemoveAt(this.Controls.Count-1);
				this.Controls.RemoveAt(this.Controls.Count-1);
				this.Controls.RemoveAt(this.Controls.Count-1);
			}
			label2.Text=""; //So that the value is influenced by the new file.
		}

		/*This method basically catches any key movement in the textbox that shows the filename of the 
		 * file choosen by the user. This the main method of the whole application. As soon as the the user
		 * hits the enter key in this method, the contents of the file are parsed. The file is read line by line,
		 * space is being used the delimiter every line that has been read. Every value is stored in the
		 * array. Since, we know the index where the destination address would be in every line, we access those 
		 * values in the array with the calculated index values.*/
		private void poorTextBox9_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
		{
			if (e.KeyCode==Keys.Enter)
			{
				if (File.Exists(fileName))
				{
					try
					{
						StreamReader stream = new StreamReader(fileName);
						
						output=null; //We would read all the lines in this string.
						lines=0; //no. of lines that have been read are maintained for future use.
						while((line = stream.ReadLine()) != null)
						{
							output += line;
							output += " ";
							lines++;
						}
						finalOutput=null;
						finalOutput = output.Split(new  char[] {' '}); //now we parse the whole string with space as a delimiter.
						
						i=1;
						temp2=null;
						three=0;
						while (true)
						{
							if (i>=lines)
								break;
							temp2 += finalOutput[(8*i)+(three*3)]+" "; //This is the formula I use to acess specific entres for the destination address.
							i++;three++;
						}
						
						finalOutput1=null;
						finalOutput1 = temp2.Split(new  char[] {' '}); //now we parse the string that contains all the destination addresses.
						temp2=null;
						//The following loop is used to remove the duplicates and only capture the distinct value
						for (int z=0; z<finalOutput1.Length; z++)
							for (int m=z+1;m<finalOutput1.Length; m++)
								if (finalOutput1[z] == finalOutput1[m])
									finalOutput1[m]=null;

						i=0;
						while (true)
						{
							if (i>=lines)
								break;
							if (finalOutput1[i]!=null)
								temp2 += finalOutput1[i]+" ";
							i++;
						}
						final=null;
						final = temp2.Split(new  char[] {' '});
						length=0;
						length=final.Length;
						length=length-2;
						labelx=8;
						richTextBoxx=184;
						y=104;
						checkBoxLocationX=368;
						checkBoxLocationY=448;
						noOfForLoop=0;

						/*This loop basically creates as many textboxes, checkboxes and label as many distinct values are
						 * there in the file that had been parsed. Specific to the object being created, I have intialised
						 * some specific properties of theirs to make sure user interface looks right.*/
						for (int inner=0; inner<length; inner++)
						{
							label=new Label();
							richTextBox=new RichTextBox();
							checkBox=new CheckBox();

							label.Location=new Point(labelx, y);
							label.Text="Data Address " + (inner+1);
							label.Font = new  System.Drawing.Font ("Comic Sans MS", 10, System.Drawing.FontStyle.Bold);
							label.Name="label"+(inner+1);
							label.Size=new System.Drawing.Size(144, 32);

							richTextBox.Location=new Point(richTextBoxx, y);
							richTextBox.Text=final[inner];
							richTextBox.Name="richTextBox"+(inner+1);
							richTextBox.Size=new System.Drawing.Size(160, 32);

							checkBox.Location=new Point(checkBoxLocationX, checkBoxLocationY);
							checkBox.Text=(inner+1)+"";
							checkBox.Name="checkBox"+(inner+1);
							checkBox.Font = new  System.Drawing.Font ("Comic Sans MS", 15, System.Drawing.FontStyle.Bold);
							checkBox.Size = new System.Drawing.Size(32, 24);
							checkBox.CheckedChanged += new System.EventHandler(this.checkBox_changed);

							
							this.Controls.Add(label);
							this.Controls.Add(richTextBox);
							this.Controls.Add(checkBox);

							noOfForLoop++;
							y+=56;
							checkBoxLocationX+=70;
						}
						
						//This initialises the label to show how many different addresses had been read in the file.
						label2.Text="The file has "+length+" different destination address(s).";
					}
					catch (IOException)
					{
						MessageBox.Show("File Error", "File Error",
							MessageBoxButtons.OK, MessageBoxIcon.Error);
					}
				}
			}
			else
			{
				MessageBox.Show(poorTextBox9.Text+" does not exist", "File Error",
					MessageBoxButtons.OK, MessageBoxIcon.Error);
			}


		}
		
		/*I actually never used this method in the application*/
		private void checkBox_changed(object sender, System.EventArgs e)
		{
			CheckBox eventSender=(CheckBox) sender;
			/*if (eventSender.Checked)
			{
				whichDataAddress += eventSender.Text+" ";
				
			}*/
		}
		
		/*UpDate File button basically replaces the value with the modified value in the filename prescribed by the user
		 * in the textbox provided for naming the file. Basically this method, before inserting the file checks to see
		 * if the file already exists or not, and if it does it deletes it and then creates one. So, if it has some 
		 * contents already then they would be overwritten. And, it only changes those values that have been checked 
		 * in the checkbxes displayed. And whichever value is specified by the checkboxes it is read dynamically.*/
		private void button2_Click(object sender, System.EventArgs e)
		{
			
			CheckBox dummy110; //Checkbox object, not yet instantiated
			whichDataAddress=null;

			/*This loop checks which are checkboxes that have been checked by the user of the application*/
			for (int oz=0; oz<length; oz++)
			{
				string buoy1="checkBox"+(oz+1);
				for (int initControl=0;initControl<this.Controls.Count;initControl++)
				{
					if (buoy1 == this.Controls[initControl].Name)
					{
						dummy110=(CheckBox)this.Controls[initControl];
						
						if (dummy110.Checked)
						{
							whichDataAddress+=dummy110.Text+" ";//This string stores the numbers like 1 or 2, 
																//all the numbers that need to be changed with space as
																//delimter.
						}
					}
				}
			}
			
			
			
			//Basically this breaks the atring and stores the value of the checkboxes in the array
			string[] dobaraSpaceParse = whichDataAddress.Split(new  char[] {' '});
			
			string newValue=null;
			string dummy=null;
			string[] finallyUse=null;

			//inputStream has been opened to read from the file. This is done in order to read the file and only modify
			//certain parts of the string before all of the contents are writtten to the file specified by the user.
			StreamReader inputStream = new StreamReader(fileName);
			
			while((inputLine = inputStream.ReadLine()) != null)
			{
				dummy+=inputLine;
				dummy += "\n"; //This time\n is used as the delimiter.
			}
			
			//Now with the help of a string comparison we will check every line and search for the instances of the text
			//that needs to be replaced. If we find it in the line we will replace it, and then write the contents 
			//in the file.

			string temp=null;
			int again=0;
			string kya=null;
			
			for (int man=0;man<dobaraSpaceParse.Length-1;man++)
			{
				temp=dobaraSpaceParse[man];
				
				again=Int32.Parse(temp);

				string buoy="richTextBox"+again;
				for (int initControl=0;initControl<this.Controls.Count;initControl++)
				{
					if (buoy == this.Controls[initControl].Name)
					{
						newValue=this.Controls[initControl].Text;
						break;
					}
				}
				
				//This is the line that does the process of replacing the string with the new string
				kya=dummy.Replace(final[again-1], newValue);
				dummy=kya;
			}

			//Now the string that has been modified according to the user specification is read to be written to the file
			finallyUse=dummy.Split(new  char[] {'\n'});

			if (File.Exists(poorTextBox11.Text))
				File.Delete(poorTextBox11.Text);

			StreamWriter outputStream = File.CreateText(poorTextBox11.Text);
			
			//String is written to the file.
			foreach(string myString in finallyUse)
				outputStream.WriteLine(myString);

			inputStream.Close();
			outputStream.Close();
			
			//MessageBox.Show(this.Controls.Count+"", "File Error",
				//MessageBoxButtons.OK, MessageBoxIcon.Error);
		}

		
		//This is the event handler for the button that chooses the file in which the contents have to be written.
		private void button3_Click(object sender, System.EventArgs e)
		{
			OpenFileDialog fileChooser=new OpenFileDialog();
			DialogResult result=fileChooser.ShowDialog();

			if (result == DialogResult.Cancel)
				return;

			fileToWrite=fileChooser.FileName;

			if (fileToWrite == "" || fileToWrite==null)
				MessageBox.Show("Invalid File Name", "Error",
					MessageBoxButtons.OK, MessageBoxIcon.Error);

			poorTextBox11.Text=fileChooser.FileName;
		}

		//The EXIT button is there for closing the application.
		private void button4_Click(object sender, System.EventArgs e)
		{
			Application.Exit();
		}
	}
}