using Nonemm.Core;

namespace Nonemm.Contests.Rules;

/// The SARTG World Wide RTTY contest. A contact inside your own country is 5
/// points, one on your own continent 10 and one from another 15. The countries
/// count once per band, and so do the US, Canadian and Japanese call areas.
public sealed class SartgRtty : Contest
{
    public string Name => "SARTGRTTY";

    public string DisplayName => "SARTG World Wide RTTY";

    public string CabrilloName => "SARTG-RTTY";

    public IReadOnlyList<ExchangeField> ExchangeFieldsFor(StationInfo me) =>
    [
        new ExchangeField("Snt", ExchangeSlot.SentReport, ExchangeFieldKind.Report, IsRequired: false),
        new ExchangeField("Rcv", ExchangeSlot.ReceivedReport, ExchangeFieldKind.Report),
        new ExchangeField("SntNR", ExchangeSlot.SentNumber, ExchangeFieldKind.Number, IsRequired: false),
        new ExchangeField("RcvNr", ExchangeSlot.SerialNumber, ExchangeFieldKind.Number),
    ];

    public IReadOnlyList<string> MultiplierNamesFor(StationInfo me) => ["Countries", "Areas"];

    public DupeScope DupeScope => DupeScope.PerBand;

    public bool HasSerialNumbers => true;

    public IReadOnlyList<ModeCategory> Modes => [ModeCategory.Digital];

    public string SentExchangeFor(StationInfo me) => "001";

    public int PointsFor(QsoContext qso) =>
        qso.IsSameCountry ? 5 : qso.IsSameContinent ? 10 : 15;

    public IReadOnlyList<Multiplier> MultipliersFor(QsoContext qso)
    {
        string band = qso.Band?.Name ?? "";
        List<Multiplier> found = [];
        if (qso.CountryPrefix.Length > 0)
        {
            found.Add(new Multiplier(1, qso.CountryPrefix, band));
        }
        string area = qso.Qso.Section.Trim().ToUpperInvariant();
        if (area.Length > 0)
        {
            found.Add(new Multiplier(2, area, band));
        }
        return found;
    }

    public int TotalScore(ScoreTally tally, ContestEntry entry) =>
        tally.Points * tally.TotalMultipliers;

    public CabrilloExchange CabrilloExchange(Qso qso, StationInfo me, ContestEntry entry) =>
        new(
            [
                new CabrilloField(me.Callsign, 13),
                new CabrilloField(qso.SentReport, 3),
                new CabrilloField($"{qso.SentNumber:000}", 4),
            ],
            [
                new CabrilloField(qso.Call.Text, 13),
                new CabrilloField(qso.ReceivedReport, 3),
                new CabrilloField($"{qso.ReceivedNumber:000}", 4),
            ]);
}