// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.IO;
using System.Runtime.InteropServices;
using Microsoft.AspNetCore.Testing.xunit;

namespace Interop.FunctionalTests
{
    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, AllowMultiple = false)]
    public class SkipIfChromeUnavailableAttribute : Attribute, ITestCondition
    {
        public bool IsMet => string.IsNullOrEmpty(Environment.GetEnvironmentVariable("JENKINS_HOME")) && (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("CI")) || File.Exists(ResolveChromeExecutablePath()));

        public string SkipReason => "This is running on Jenkins or Chrome/Chromium is not installed and this is a dev environment.";

        private static string ResolveChromeExecutablePath()
        {
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86), "Google", "Chrome", "Application", "chrome.exe");
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                return Path.Combine("/usr", "bin", "google-chrome");
            }

            throw new PlatformNotSupportedException();
        }
    }
}