// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System;
using System.Diagnostics;
using System.Text.RegularExpressions;
using Microsoft.Build.Shared;

namespace Microsoft.Build.Utilities;

/// <summary>
/// Represents information about assembly folders.
/// </summary>
[DebuggerDisplay("DirectoryPath: {DirectoryPath}, TargetFrameworkVersion = {TargetFrameworkVersion}")]
public class AssemblyFoldersFromConfigInfo
{
    /// <summary>
    /// Initializes a new instance of the AssemblyFoldersFromConfigInfo class.
    /// </summary>
    /// <param name="directoryPath">The directory path.</param>
    /// <param name="targetFrameworkVersion">The <see cref="Version"/> of the target framework.</param>
    public AssemblyFoldersFromConfigInfo(string directoryPath, Version targetFrameworkVersion)
    {
        ArgumentNullException.ThrowIfNull(directoryPath);
        ArgumentNullException.ThrowIfNull(targetFrameworkVersion);

        // When we get a path, it may be relative to Visual Studio (i.e. reference assemblies). If the
        // VSInstallDir environment is used, replace with our known location to Visual Studio.
        if (!string.IsNullOrEmpty(BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory))
        {
            directoryPath = Regex.Replace(directoryPath, "%VSINSTALLDIR%",
                BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory, RegexOptions.IgnoreCase);
        }

        DirectoryPath = Environment.ExpandEnvironmentVariables(directoryPath);
        TargetFrameworkVersion = targetFrameworkVersion;
    }

    /// <summary>
    /// Gets the path to the assembly folder.
    /// </summary>
    public string DirectoryPath { get; }

    /// <summary>
    /// Gets the <see cref="Version"/> of the target framework.
    /// </summary>
    public Version TargetFrameworkVersion { get; }
}