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

namespace RenameIt
{
    /// <summary>
    /// Counts the files in a directory.
    /// </summary>
    internal class AllFiles
    {
        string directory = "";
        string extension = ".*";
        bool subDir = false;

        /// <summary>
        /// Counts all files in a directory.
        /// </summary>
        /// <param name="path">This directory contains the files.</param>
        /// <param name="subDir">If it is true, it will search in all subdirectories too.</param>
        public AllFiles(string path, string extension, bool subDir)
        {
            this.directory = path;
            
            if (extension.StartsWith("."))
            {
                this.extension = extension;
            }
            else
            {
                this.extension = "." + extension;
            }

            this.subDir = subDir;
        }

        /// <summary>
        /// Returns the number of files.
        /// </summary>
        /// <returns></returns>
        public int Lenght()
        {
            DirectoryInfo di = new DirectoryInfo(directory);
            if (!subDir)
            {
                return di.GetFiles("*" + extension).Length;
            }
            else
            {
                return di.GetFiles("*" + extension, SearchOption.AllDirectories).Length; //Eins abziehen damit das Ergebnis richtig ist.
            }
        }

        /// <summary>
        /// Returns a list of all files.
        /// </summary>
        /// <returns>A list in string format.</returns>
        public List<string> GetFileList()
        {
            //Dateiliste erstellen
            List<string> fileList = new List<string>();

            try
            {
                FilesInFolders fif = new FilesInFolders(directory, extension, subDir);
                fileList = fif.GetFileArray;
                return fileList;
            }
            catch (Exception)
            {
                MessageBox.Show(AppResources.msg007, AppResources.capt001, MessageBoxButtons.OK);
                fileList.Clear();
                return fileList;
            }
        }
    }
}