using System;
using Upsilon.BaseTypes.UserData;
using Upsilon.Evaluator;
using Xunit;
// ReSharper disable UnusedMember.Local
// ReSharper disable ClassNeverInstantiated.Global

namespace UpsilonTests
{
    public class UserDataOperatorTests : IClassFixture<UserDataOperatorTests.UserDataOperatorTestsFixture>
    {
        public class UserDataOperatorTestsFixture : IDisposable
        {
            public UserDataOperatorTestsFixture()
            {
                UserDataTypeHandler.LoadType<UserDataHelper>();
            }

            public void Dispose()
            {
            }
        }

#pragma warning disable 414, 649
        private class UserDataHelper
        {
            public UserDataHelper(double value)
            {
                Value = value;
            }

            public double Value { get; }

            public static UserDataHelper operator +(UserDataHelper a, UserDataHelper b)
            {
                return new UserDataHelper(a.Value + b.Value);
            }

            public static UserDataHelper operator +(UserDataHelper a, double b)
            {
                return new UserDataHelper(a.Value + b);
            }

        }
#pragma warning restore 414, 649


        [Fact]
        public void TestAddition()
        {
            const string input = @"
function add(o1, o2)
    return o1 + o2
end
";
            var script = new Script(input);
            Assert.Empty(script.Diagnostics.Messages);
            var o1 = new UserDataHelper(100);
            var o2 = new UserDataHelper(215);
            var result = script.EvaluateFunction("add", new[] {o1, o2});
        }
    }
}