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

namespace intChanger
{
    public partial class Form1 : Form
    {
        BackgroundWorker _bgwCopyOperation = new BackgroundWorker();
        public Form1()
        {
            InitializeComponent();
            _bgwCopyOperation.WorkerReportsProgress = true;
            _bgwCopyOperation.WorkerSupportsCancellation = true;
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        string Dirr;
        string Dirr2;
        int no = 0;
        int Count = 0;
        int Count2 = 0;
        private void _bgwCopyOperation_DoWork(object sender, DoWorkEventArgs e, string sourceDirName, string destDirName, bool copySubDirs)
        {
            if (no == 0)
            {
                no = 1;
                Dirr = sourceDirName;
                Dirr2 = destDirName;
                Count = Directory.GetFiles(Dirr, "*.*", SearchOption.AllDirectories).Length;
                Count = 100 / Count;
            }
            
            // Get the subdirectories for the specified directory.
            DirectoryInfo dir = new DirectoryInfo(sourceDirName);

            if (!dir.Exists)
            {
                throw new DirectoryNotFoundException(
                    "Source directory does not exist or could not be found: "
                    + sourceDirName);
            }

            DirectoryInfo[] dirs = dir.GetDirectories();
            // If the destination directory doesn't exist, create it.
            if (!Directory.Exists(destDirName))
            {
                Directory.CreateDirectory(destDirName);
            }

            // Get the files in the directory and copy them to the new location.
            FileInfo[] files = dir.GetFiles();
            foreach (FileInfo file in files)
            {
                string temppath = Path.Combine(destDirName, file.Name);
                file.CopyTo(temppath, false);
                Count2 = Count2 + 1;

                //Update progressbar here
                _bgwCopyOperation.ReportProgress(Count2 * Count);
            }

            // If copying subdirectories, copy them and their contents to new location.
            if (copySubDirs)
            {
                foreach (DirectoryInfo subdir in dirs)
                {
                    string temppath = Path.Combine(destDirName, subdir.Name);
                    //Foo((object)new object[] { (object)"1", (object)"2" }));
                    _bgwCopyOperation.RunWorkerAsync((object)new object[] { (object)subdir.FullName, (object)temppath, (object)copySubDirs });
                    //_bgwCopyOperation.RunWorkerAsync(subdir.FullName, temppath, copySubDirs);
                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (_bgwCopyOperation.IsBusy != true)
            {
                // Start the asynchronous operation.
                _bgwCopyOperation.RunWorkerAsync((object)new object[] { (object)@"C:\Users\Stefan\Downloads\Portable Python 2.7.15 Basic (x64)\Portable Python 2.7.15 x64", (object)@"C:\Users\Stefan\Documents\Backuppers_Backups\Portable Python 2.7.15 x64", (object)true });
            }

        }

        private void _bgwCopyOperation_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            progressBar1.Value = e.ProgressPercentage;
        }
    }
}