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

namespace ClassLibrary
{
    public class Helper
    {
        public static bool IsValidPath(string path, bool allowRelativePaths = false)
        {
            bool isValid = true;

            try
            {
                string fullPath = Path.GetFullPath(path);

                if (allowRelativePaths)
                {
                    isValid = Path.IsPathRooted(path);
                }
                else
                {
                    string root = Path.GetPathRoot(path);
                    isValid = string.IsNullOrEmpty(root.Trim(new char[] { '\\', '/' })) == false;
                }
            }
            catch (Exception ex)
            {
                isValid = false;
            }

            return isValid;
        }

        public static string CreateOutDir(string dirName)
        {
            string outDirName = dirName + "\\TEST\\";
            bool isValid = IsValidPath(outDirName);

            if (isValid == false)
                return "";
            
            try
            {
                if (!Directory.Exists(outDirName))
                {
                    Directory.CreateDirectory(outDirName);
                }
            }
            catch (Exception ex)
            {
                isValid = false;
                MessageBox.Show(
                    ex.Message,
                    "Exception!",
                    //Resources.System_Error_Message_Title,
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
            }

            return outDirName;
        }

        public static string FoundPicExt(string[] filesname)
        {
            string ext = "";
            for (int i = 0; i < filesname.Length; i++)
            {
                if (Path.GetExtension(filesname[i]) == ".bmp" || Path.GetExtension(filesname[i]) == ".png" || Path.GetExtension(filesname[i]) == ".jpg" || Path.GetExtension(filesname[i]) == ".tif")
                {
                    ext = Path.GetExtension(filesname[i]);
                    return ext;
                }
            }
            return ext;
        }

        public static string[] LoadRakurseFiles(string path)
        {
            //string path = txtSourceFilePath.Text;
            string[] _rakurseFiles = null;

            try
            {
                // get the file attributes for file or directory
                FileAttributes attr = File.GetAttributes(path);

                if (attr.HasFlag(FileAttributes.Directory))
                {
                    string[] filesname = Directory.GetFiles(path);       //!!!!Nick
                    string ext = FoundPicExt(filesname);                 //!!!!Nick
                    ext = "*" + ext; //Path.GetExtension(filesname[2]);  //!!!!Nick

                    var files = Directory.GetFiles(path, ext).ToList();  //!!!!Nick
                    //var files = Directory.GetFiles(path, "*.tif").ToList(); //.OrderBy(f => f.CreationTime);
                    files.Sort();
                    //txtNFilesSelected.Text = files.Count.ToString();
                    _rakurseFiles = new string[files.Count];
                    files.CopyTo(_rakurseFiles);
                }
            }
            catch (Exception ex)
            {
                //this.ShowErrorMessage(ex);
            }

            return _rakurseFiles;
        }

    }
}