// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System;
using System.IO;

namespace Microsoft.DotNet.ProjectModel.FileSystemGlobbing.Tests.TestUtility
{
    public class DisposableFileSystem : IDisposable
    {
        public DisposableFileSystem()
        {
            RootPath = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
            Directory.CreateDirectory(RootPath);
            DirectoryInfo = new DirectoryInfo(RootPath);
        }

        public string RootPath { get; }

        public DirectoryInfo DirectoryInfo { get; }

        public DisposableFileSystem CreateFolder(string path)
        {
            Directory.CreateDirectory(Path.Combine(RootPath, path));
            return this;
        }

        public DisposableFileSystem CreateFile(string path)
        {
            File.WriteAllText(Path.Combine(RootPath, path), "temp");
            return this;
        }

        public DisposableFileSystem CreateFiles(params string[] fileRelativePaths)
        {
            foreach (var path in fileRelativePaths)
            {
                var fullPath = Path.Combine(RootPath, path);
                Directory.CreateDirectory(Path.GetDirectoryName(fullPath));

                File.WriteAllText(
                    fullPath,
                    string.Format("Automatically generated for testing on {0:yyyy}/{0:MM}/{0:dd} {0:hh}:{0:mm}:{0:ss}", DateTime.UtcNow));
            }

            return this;
        }

        public void Dispose()
        {
            try
            {
                Directory.Delete(RootPath, true);
            }
            catch
            {
                // Don't throw if this fails.
            }
        }
    }
}