using System.Collections.Generic;
using Centron.Common.Calculations;
using Centron.Interfaces.Sales.Receipts.Switzerland;
using Centron.Tests.EndToEnd.Infrastructure;
using Xunit;
using Xunit.Abstractions;

namespace Centron.Tests.EndToEnd.Tests.Calculations;

public class SwitzerlandRoundingTests : CentronTest
{
    public SwitzerlandRoundingTests(ITestOutputHelper testOutputHelper) : base(testOutputHelper)
    {
    }

    [Fact]
    public void Execute()
    {
        var tests =
            new List<(decimal number, decimal expectedRoundDown, decimal expectedMidpoint, decimal expectedRoundUp)>()
            {
                (3.1m, 3.1m, 3.1m, 3.1m),
                (3.12m, 3.1m, 3.1m, 3.15m),
                (3.14m, 3.1m, 3.15m, 3.15m),
                (3.15m, 3.15m, 3.15m, 3.15m),
                (3.16m, 3.15m, 3.15m, 3.2m),
                (3.18m, 3.15m, 3.2m, 3.2m)
            };
        foreach (var testValue in tests)
        {
            Assert.Equal(testValue.expectedMidpoint, MathUtils.CommercialRoundCH(testValue.number)); // Test default -- should be midpoint
            Assert.Equal(testValue.expectedRoundDown, MathUtils.CommercialRoundCH(testValue.number, SwissRounding.RoundDown, isUnitTest:true));
            Assert.Equal(testValue.expectedMidpoint, MathUtils.CommercialRoundCH(testValue.number, SwissRounding.Business, isUnitTest:true));
            Assert.Equal(testValue.expectedRoundUp, MathUtils.CommercialRoundCH(testValue.number, SwissRounding.RoundUp, isUnitTest:true));
        }
    }
}