// 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.Collections.Generic;
using Microsoft.DotNet.XUnitExtensions;
using Xunit.Sdk;
 
namespace Xunit
{
#if !USES_XUNIT_3
    [TraitDiscoverer("Microsoft.DotNet.XUnitExtensions.SkipOnMonoDiscoverer", "Microsoft.DotNet.XUnitExtensions")]
#endif
    [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
    public class SkipOnMonoAttribute : Attribute, ITraitAttribute
    {
#if USES_XUNIT_3
        private readonly TestPlatforms _testPlatforms = TestPlatforms.Any;
#endif
 
        internal SkipOnMonoAttribute() { }
        public SkipOnMonoAttribute(string reason, TestPlatforms testPlatforms = TestPlatforms.Any)
        {
#if USES_XUNIT_3
            _testPlatforms = testPlatforms;
#endif
        }
 
#if USES_XUNIT_3
        public IReadOnlyCollection<KeyValuePair<string, string>> GetTraits()
        {
            if (DiscovererHelpers.IsMonoRuntime)
            {
                if (DiscovererHelpers.TestPlatformApplies(_testPlatforms))
                {
                    return new[] { new KeyValuePair<string, string>(XunitConstants.Category, XunitConstants.Failing) };
                }
            }
 
            return Array.Empty<KeyValuePair<string, string>>();
        }
#endif
    }
}