using Nonemm.Core;

namespace Nonemm.Network.Tests;

/// N1MM reads a contact by position, with `SetNewContact`, and it throws on a
/// flag written as `True`.
public class QsoRecordTests
{
    private static readonly Qso Worked = new()
    {
        Id = Qso.NewId(),
        TimestampUtc = new DateTime(2026, 10, 24, 2, 29, 21, DateTimeKind.Utc),
        Call = Callsign.Parse("G3XYZ"),
        Frequency = Frequency.FromKilohertz(14_025),
        Mode = Modes.Cw,
        ContestName = "CQWW",
        Points = 3,
        IsMultiplier1 = true,
        IsMultiplier3 = true,
        Continent = "EU",
        ContactType = "D",
        StationName = "RUN-PC",
        NetworkedComputerNumber = 2,
    };

    [Fact]
    public void AContactIsFortyThreeFields()
    {
        Assert.Equal(QsoRecord.FieldCount, QsoRecord.Write(Worked).Count);
    }

    /// The fields N1MM converts with `ToShort` are 20, 21, 30, 36, 40 and 42.
    [Fact]
    public void TheFlagsN1MmConvertToNumbersAreNumbers()
    {
        List<string> fields = QsoRecord.Write(Worked);

        foreach (int at in new[] { 20, 21, 30, 36, 40, 42 })
        {
            Assert.True(short.TryParse(fields[at], out _), $"field {at} is '{fields[at]}'");
        }
        Assert.Equal("1", fields[20]);
        Assert.Equal("0", fields[21]);
    }

    [Fact]
    public void TheContinentComesBeforeTheContactType()
    {
        List<string> fields = QsoRecord.Write(Worked);

        Assert.Equal("EU", fields[32]);
        Assert.Equal("D", fields[33]);
    }

    [Fact]
    public void TheIdIsSentAsAGuidAndKept()
    {
        List<string> fields = QsoRecord.Write(Worked);
        StationRecord record = new(2, "RUN-PC", "QSO", [fields[0], .. fields]);

        Qso read = QsoRecord.Read(record, 1, "RUN-PC");

        Assert.Equal(Worked.Id, read.Id);
        Assert.Equal(Worked.Call.Text, read.Call.Text);
        Assert.Equal("EU", read.Continent);
        Assert.Equal("D", read.ContactType);
        Assert.Equal(2, read.NetworkedComputerNumber);
    }

    /// N1MM parses the id as a GUID, so one that is not goes out empty.
    [Fact]
    public void AnIdThatIsNotAGuidIsLeftOut()
    {
        Assert.Equal("", QsoRecord.Write(Worked with { Id = "not-a-guid" })[41]);
    }
}