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

namespace Microsoft.DotNet.Cli.Utils;

public static class Env
{
    private static readonly IEnvironmentProvider s_environment = new EnvironmentProvider();

    public static IEnumerable<string> ExecutableExtensions => s_environment.ExecutableExtensions;

    public static string? GetCommandPath(string commandName, params string[] extensions) =>
        s_environment.GetCommandPath(commandName, extensions);

    public static string? GetCommandPathFromRootPath(string rootPath, string commandName, params string[] extensions) =>
        s_environment.GetCommandPathFromRootPath(rootPath, commandName, extensions);

    public static string? GetCommandPathFromRootPath(string rootPath, string commandName, IEnumerable<string> extensions) =>
        s_environment.GetCommandPathFromRootPath(rootPath, commandName, extensions);

    public static bool GetEnvironmentVariableAsBool(string name, bool defaultValue = false) =>
        s_environment.GetEnvironmentVariableAsBool(name, defaultValue);

    public static bool TryGetEnvironmentVariableAsBool(string name, [NotNullWhen(true)] out bool value) =>
        s_environment.TryGetEnvironmentVariableAsBool(name, out value);

    public static int? GetEnvironmentVariableAsNullableInt(string name) =>
        s_environment.GetEnvironmentVariableAsNullableInt(name);

    public static string? GetEnvironmentVariable(string name) =>
        s_environment.GetEnvironmentVariable(name);

    public static bool AnyEnvironmentVariablesSet(IEnumerable<string> variableNames)
    {
        foreach (var name in variableNames)
        {
            if (GetEnvironmentVariable(name) != null)
            {
                return true;
            }
        }
        return false;
    }
}