// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

#nullable disable

using System.IO;

namespace Microsoft.CodeAnalysis.Test.Utilities;

public static class DirectoryExtensions
{
    /// <summary>
    /// The framework's Directory.Delete does not delete individual files within the directory structure. So it could throw directory not empty exception.
    /// This helper function recurses through the directory structure, deleting individual files before deleting the directory itself.
    /// </summary>
    /// <param name="path">The directory path to delete</param>
    public static void DeleteRecursively(string path)
    {
        var files = Directory.GetFiles(path);
        var dirs = Directory.GetDirectories(path);

        foreach (var file in files)
        {
            // If there were read-only attributes on the file, the delete would throw, so set normal permissions.
            File.SetAttributes(file, FileAttributes.Normal);
            File.Delete(file);
        }

        foreach (var dir in dirs)
        {
            DeleteRecursively(dir);
        }

        Directory.Delete(path, recursive: false);
    }
}
