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

namespace DirectoryList
{    
    public partial class Form1 : Form
    {
        // Stream need to be public.
        StreamWriter SW;

        // Form declaration.
        public Form1()
        {
            InitializeComponent();
        }

        // Select origin directory.
        private void button1_Click(object sender, EventArgs e)
        {
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
            {
                textBox1.Text = folderBrowserDialog1.SelectedPath;
            }
        }

        // Select destiny file.
        private void button2_Click(object sender, EventArgs e)
        {
            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
            {
                textBox2.Text = saveFileDialog1.FileName;
            }
        }

        // Do the search.
        private void button3_Click(object sender, EventArgs e)
        {
            // Stream file assign.
            FileInfo f = new FileInfo(textBox2.Text);
            SW = f.CreateText();

            // Progressbar.
            progressBar1.Minimum = 0;

            // Search recursively.
            DirSearch(textBox1.Text);

            // Change label.
            label3.Text = "Done";

            // We are done.
            SW.Close();
        }

        // Recursive search.
        void DirSearch(string sDir)
        {
            // Lookup current directory.
            foreach (string d in Directory.GetDirectories(sDir))
            {
                // Progressbar for this directory.
                progressBar1.Maximum = Directory.GetFiles(d, "*.*").Length;
                progressBar1.Value = 0;

                // Lookup files.
                foreach (string f in Directory.GetFiles(d,"*.*"))
                {
                    // Get info and write.
                    FileInfo file = new FileInfo(f);
                    SW.WriteLine(file.Name);

                    // Change text.
                    label3.Text = "Progress - " + file.Name;
                    progressBar1.Value += 1;
                    this.Refresh();
                }

                // Recurse to next directory.
                DirSearch(d);
            }
        }
    }
}