using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication4 {
    public partial class Form1:Form {
        public bool imageLoaded = false;
        public Form1 () {
            InitializeComponent();
        }

        private void Form1_Load (Object sender,EventArgs e) {
            Debug("Please select an image");
        }

        private void button3_Click (Object sender,EventArgs e) {
            openFileDialog1.ShowDialog();
            try {
                pictureBox1.ImageLocation = openFileDialog1.FileName;
                imageLoaded = true;
                Debug("Image Loaded");
                Debug("Please select the begining of wall");
            } catch(Exception ex) {
                Debug("Error loading image:" + ex);
            }
        }
        int q = 1;
        int x, y;
        private void pictureBox1_Click (Object sender,EventArgs e) {
            if(imageLoaded) {
                var loc = pictureBox1.PointToClient(Cursor.Position);

                if(q==1) {
                    Debug("You selected " + loc.X +" " + loc.Y);
                    Debug("Please select the ending of wall");
                    x=loc.X;
                    y=loc.Y;
                    q++;
                } else {
                    Debug("You have created a wall from " + x +" " + y +" to " + loc.X +" " +loc.Y);
                    listBox1.Items.Add(x+" "+y +"|" + loc.X + " "+loc.Y);
                    q=1;
                    DrawWall(x,y,loc.X,loc.Y,Color.Red);
                    Debug("Please select the begining of wall");
                }
            }
        }

        public void Debug (string a) {
            console.Text += a + Environment.NewLine;
            console.SelectionStart = console.TextLength;
            console.ScrollToCaret();
        }

        private void listBox1_SelectedIndexChanged (Object sender,EventArgs e) {
            int x, y, xEnd, yEnd;
            for(int i = 0;i<listBox1.Items.Count;i++) {
                x = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[0].Split(' ')[0]);
                y = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[0].Split(' ')[1]);
                xEnd = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[1].Split(' ')[0]);
                yEnd = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[1].Split(' ')[1]);
                DrawWall(x,y,xEnd,yEnd,Color.Red);
            }
            try {
                x = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[0].Split(' ')[0]);
                y = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[0].Split(' ')[1]);
                xEnd = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[1].Split(' ')[0]);
                yEnd = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[1].Split(' ')[1]);
                DrawWall(x,y,xEnd,yEnd,Color.Yellow);
                Debug("You have selected the wall from " + x +" " + y +" to " + xEnd +" " + yEnd);
            } catch { };

            q=1;
        }

        private void button2_Click (Object sender,EventArgs e) {
            int x, y, xEnd, yEnd;
            if(listBox1.Items.Count >0 && listBox1.SelectedIndex != -1) {
                x = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[0].Split(' ')[0]);
                y = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[0].Split(' ')[1]);
                xEnd = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[1].Split(' ')[0]);
                yEnd = Convert.ToInt32(listBox1.Items[listBox1.SelectedIndex].ToString().Split('|')[1].Split(' ')[1]);
                DrawWall(x,y,xEnd,yEnd,Color.Black);
                listBox1.Items.RemoveAt(listBox1.SelectedIndex);
                Debug("You have deleted the wall from " + x +" " + y +" to " + xEnd +" " + yEnd);
            }

        }

        private void button1_Click (Object sender,EventArgs e) {
            saveFileDialog1.Filter="Wall|.wall";
            saveFileDialog1.ShowDialog();
            string output = "";
            foreach(string s in listBox1.Items) {
                output+=s+Environment.NewLine;
            }
            System.IO.File.WriteAllText(saveFileDialog1.FileName,output);
        }

        private void button4_Click (Object sender,EventArgs e) {
            q=1;
            openFileDialog2.Filter="Walls|*.wall";
            openFileDialog2.ShowDialog();
            string a = System.IO.File.ReadAllText(openFileDialog2.FileName);
            foreach(string b in a.Split('\n')) {
                if(b!="")
                listBox1.Items.Add(b);
            }

            int x, y, xEnd, yEnd;
            for(int i = 0;i<listBox1.Items.Count;i++) {
                try {
                    x = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[0].Split(' ')[0]);
                    y = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[0].Split(' ')[1]);
                    xEnd = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[1].Split(' ')[0]);
                    yEnd = Convert.ToInt32(listBox1.Items[i].ToString().Split('|')[1].Split(' ')[1]);
                    DrawWall(x,y,xEnd,yEnd,Color.Red);
                } catch {
                    Debug("Error loading something in map");
                        };
            }
        }

        public void DrawWall (float x,float y,float xEnd,float yEnd,Color c) {
            var DrawArea = (Bitmap)pictureBox1.Image;
            Graphics g;
            g = Graphics.FromImage(DrawArea);
            Pen mypen = new Pen(c);
            g.DrawLine(mypen,x,y,xEnd,yEnd);
            pictureBox1.Image = DrawArea;
            g.Dispose();
        }


    }
}