using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

internal static class DirectoryUtility
{
    internal static void DeleteDirectory(string directoryPath, bool onlyIfEmpty = true, bool recursiveDelete = true)
    {
        if (!Directory.Exists(directoryPath))
            return;

       if (!onlyIfEmpty || (onlyIfEmpty && Directory.GetFiles(directoryPath).Length == 0 && Directory.GetDirectories(directoryPath).Length == 0))
            Directory.Delete(directoryPath, recursiveDelete);
    }

    internal static void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs)
    {
        // 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, true);
        }

        // 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);
                DirectoryCopy(subdir.FullName, temppath, true);
            }
        }
    }
}