using Nonemm.Core;

namespace Nonemm.Core.Tests;

public class BandPlanTests
{
    [Fact]
    public void TwentyMetresSplitsAtTheCwEdge()
    {
        BandSegments segments = Assert.IsType<BandSegments>(BandPlan.Default.For(Bands.Band20M));

        Assert.Equal(Bands.Band20M.Low, segments.CwLow);
        Assert.Equal(Frequency.FromKilohertz(14_150), segments.CwHigh);
        Assert.Equal(Frequency.FromKilohertz(14_150), segments.PhoneLow);
        Assert.Equal(Bands.Band20M.High, segments.PhoneHigh);
        Assert.True(segments.HasPhone);
        Assert.False(segments.HasDigital);
    }

    [Fact]
    public void ThirtyMetresIsAllCw()
    {
        BandSegments segments = Assert.IsType<BandSegments>(BandPlan.Default.For(Bands.Band30M));

        Assert.Equal(Bands.Band30M.High, segments.CwHigh);
        Assert.False(segments.HasPhone);
    }

    /// Nothing is painted for a band with no boundary.
    [Theory]
    [InlineData("60M")]
    [InlineData("70CM")]
    [InlineData("630M")]
    public void ABandWithNoBoundaryHasNoSegments(string name) =>
        Assert.Null(BandPlan.Default.For(Bands.Named(name)!));

    [Fact]
    public void ChangingOneBandLeavesTheOthersAlone()
    {
        BandPlan changed = BandPlan.Default.With(
            new BandSegments(Bands.Band20M, Frequency.FromKilohertz(14_100)));

        Assert.Equal(Frequency.FromKilohertz(14_100), changed.For(Bands.Band20M)!.CwHigh);
        Assert.Equal(
            BandPlan.Default.For(Bands.Band40M)!.CwHigh,
            changed.For(Bands.Band40M)!.CwHigh);
        Assert.Equal(BandPlan.Default.All.Count, changed.All.Count);
    }

    [Fact]
    public void ADigitalBlockIsThereOnceItHasWidth()
    {
        BandSegments segments = new(
            Bands.Band20M,
            Frequency.FromKilohertz(14_150),
            Frequency.FromKilohertz(14_070),
            Frequency.FromKilohertz(14_099));

        Assert.True(segments.HasDigital);
    }
}