using static PKHeX.Core.LegalityCheckStrings;

namespace PKHeX.Core
{
    /// <summary>
    /// Verifies the <see cref="IHyperTrain"/> values.
    /// </summary>
    public sealed class HyperTrainingVerifier : Verifier
    {
        protected override CheckIdentifier Identifier => CheckIdentifier.Training;

        public override void Verify(LegalityAnalysis data)
        {
            var pkm = data.pkm;
            if (pkm is not IHyperTrain t)
                return; // No Hyper Training before Gen7

            if (!t.IsHyperTrained())
                return;

            if (!t.IsHyperTrainingAvailable())
            {
                data.AddLine(GetInvalid(LHyperPerfectUnavailable));
                return;
            }

            if (pkm.CurrentLevel != 100)
            {
                data.AddLine(GetInvalid(LHyperBelow100));
                return;
            }

            int max = pkm.MaxIV;
            if (pkm.IVTotal == max * 6)
            {
                data.AddLine(GetInvalid(LHyperPerfectAll));
                return;
            }

            // LGPE gold bottle cap applies to all IVs regardless
            if (pkm.GG && t.IsHyperTrainedAll()) // already checked for 6IV, therefore we're flawed on at least one IV
                return;

            for (int i = 0; i < 6; i++) // Check individual IVs
            {
                if (pkm.GetIV(i) != max || !t.IsHyperTrained(i))
                    continue;
                data.AddLine(GetInvalid(LHyperPerfectOne));
                break;
            }
        }
    }
}