using Xunit;
using IvfTl.AutoFocus.Layout;

namespace IvfTl.AutoFocus.Tests
{
    public class FocusRangeResolverTests
    {
        private static FocusRangeRawConfig Raw(
            int? wellH = null, int? wellV = null,
            int? devH = null, int? devV = null,
            int expMin = 10, int expMax = 800,
            int hCenter = 71000, int vCenter = 88000) =>
            new FocusRangeRawConfig
            {
                WellHRange = wellH, WellVRange = wellV,
                DeviceHRange = devH, DeviceVRange = devV,
                ExposureMin = expMin, ExposureMax = expMax,
                HorizontalCenter = hCenter, VerticalCenter = vCenter,
            };

        [Fact]
        public void 半幅_well级覆盖设备级()
        {
            var r = FocusRangeResolver.Resolve(Raw(wellH: 1500, wellV: 4000, devH: 2000, devV: 6000));
            Assert.Equal(1500, r.HHalf);
            Assert.Equal(4000, r.VHalf);
        }

        [Fact]
        public void 半幅_well空则继承设备级()
        {
            var r = FocusRangeResolver.Resolve(Raw(wellH: null, wellV: null, devH: 2000, devV: 6000));
            Assert.Equal(2000, r.HHalf);
            Assert.Equal(6000, r.VHalf);
        }

        [Fact]
        public void 半幅_两级皆空则回退引擎默认()
        {
            var r = FocusRangeResolver.Resolve(Raw(wellH: null, wellV: null, devH: null, devV: null));
            Assert.Equal(FocusRangeResolver.DefaultHHalf, r.HHalf);
            Assert.Equal(FocusRangeResolver.DefaultVHalf, r.VHalf);
        }

        [Fact]
        public void 曝光范围_透传设备级()
        {
            var r = FocusRangeResolver.Resolve(Raw(expMin: 15, expMax: 600));
            Assert.Equal(15, r.ExpLo);
            Assert.Equal(600, r.ExpHi);
        }

        [Fact]
        public void 中心_原样透传()
        {
            var r = FocusRangeResolver.Resolve(Raw(hCenter: 71000, vCenter: 88000));
            Assert.Equal(71000, r.HCenter);
            Assert.Equal(88000, r.VCenter);
        }
    }
}