ArgsHelper.cs

//--------------------------------------------------//
// Created by basicx-StrgV                          //
// https://github.com/basicx-StrgV/                 //
//--------------------------------------------------//
using System;
using System.IO;
 
namespace WGetNET.Helper
{
    internal static class ArgsHelper
    {
        public static void ThrowIfStringIsNullOrWhiteSpace(string arg, string name)
        {
            if (arg == null)
            {
                throw new ArgumentNullException(name);
            }
            else if (string.IsNullOrWhiteSpace(arg))
            {
                throw new ArgumentException("Value cannot be empty.", name);
            }
        }
 
        public static void ThrowIfObjectIsNull(object arg, string name)
        {
            if (arg == null)
            {
                throw new ArgumentNullException(name);
            }
        }
 
        public static void ThrowIfWinGetObjectIsNullOrEmpty(IWinGetObject arg, string name)
        {
            if (arg == null)
            {
                throw new ArgumentNullException(name);
            }
            else if (arg.IsEmpty)
            {
                throw new ArgumentException("Object cannot be empty.", name);
            }
        }
 
        public static void ThrowIfPathIsInvalid(string arg)
        {
            // This will indirectly throw other exeption.
            string root = Directory.GetDirectoryRoot(arg);
 
            // Check if the path exists.
            if (!Directory.Exists(root))
            {
                throw new DirectoryNotFoundException($"The path root '{root}' does not exist.");
            }
        }
    }
}