using System.IO;

namespace MfGames.IO.Extensions
{
    /// <summary>
    /// Useful extension methods for DirectoryInfo.
    /// </summary>
    public static class DirectoryInfoExtensions
    {
        /// <summary>
        /// Makes sure a directory exists, creating it and any parents above it
        /// as needed.
        /// </summary>
        /// <param name="directory"></param>
        public static void CreateIfMissing(this DirectoryInfo? directory)
        {
            // Ignore blanks.
            if (directory == null)
            {
                return;
            }

            // Check the parent first. We don't have to worry about null because
            // we check that coming in.
            directory.Parent.CreateIfMissing();

            // If the directory doesn't exist, create it.
            if (!directory.Exists)
            {
                directory.Create();
            }
        }
    }
}