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

namespace PuzzleKornShell
{
    public partial class Form1 : Form
    {
        //String abc = "qwertyuiopasdfghjklzxcvbnm";
        String abc   = "abcdefghijklmnopqrstuvwxyz";
        Random r = new Random();

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
        }

        public string rAlph()
        {
            String alph = "";
            while (alph.Length < abc.Length)
            {
                int x = r.Next(0, abc.Length);
                while (alph.Contains(Convert.ToString(abc[x]))) x = r.Next(0, abc.Length);
                alph += abc[x];
            }
            return alph;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            button1.Enabled = false;
            int max = 0;
            String ut = "";
            listBox1.Items.Clear();
            for (int k = 0; k < 1000; k++)
            {
                String s = "";
                String alph = rAlph();
                String x = textBox1.Text;
                int kos = 1;
                while (kos < 1000000)
                {
                    for (int i = 0; i < x.Length; i++)
                    {
                        int c = x[i] - 97;
                        if (c >= 0 && c < 28)
                        {
                            s += alph[c];
                        }
                        else
                        {
                            s += x[i];
                        }
                    }
                    x = s;
                    if (textBox1.Text.Equals(s)) break;
                    s = "";
                    kos++;
                }
                if (kos > max)
                {
                    max = kos;
                    ut = alph;
                }
                //listBox1.Items.Add(alph + ": " + Convert.ToString(kos));
            }
            listBox1.Items.Add("MAX: " + ut + ": " + Convert.ToString(max));
            button1.Enabled = true;
            skriv(ut);
        }

        private void skriv(String EkkeltAlfabet)
        {
            String s = "";
            String alph = EkkeltAlfabet;
            String x = textBox1.Text;
            int kos = 1;
            while (kos < 1000000)
            {
                for (int i = 0; i < x.Length; i++)
                {
                    int c = x[i] - 97;
                    if (c >= 0 && c < 28)
                    {
                        listBox1.Items.Add("** Replaced " + x[i] + " with " + alph[c]);
                        s += alph[c];
                    }
                    else
                    {
                        s += x[i];
                    }
                }
                x = s;
                listBox1.Items.Add(Convert.ToString(kos) + ": " + x);
                if (textBox1.Text.Equals(s)) break;
                s = "";
                kos++;
            }
        }
    }
}