using System.Collections.Generic;

namespace PKHeX.Core
{
    public sealed class EncounterTrade4PID : EncounterTrade, IContestStats
    {
        public override int Generation => 4;

        /// <summary>
        /// Fixed <see cref="PKM.PID"/> value the encounter must have.
        /// </summary>
        public readonly uint PID;

        public EncounterTrade4PID(uint pid) => PID = pid;

        internal IReadOnlyList<int> Contest { set => this.SetContestStats(value); }
        public int CNT_Cool { get; set; }
        public int CNT_Beauty { get; set; }
        public int CNT_Cute { get; set; }
        public int CNT_Smart { get; set; }
        public int CNT_Tough { get; set; }
        public int CNT_Sheen { get; set; }

        public override Shiny Shiny { get; set; } = Shiny.FixedValue;

        public override bool IsMatch(PKM pkm, DexLevel evo)
        {
            if (!base.IsMatch(pkm, evo))
                return false;

            if (pkm is IContestStats s && s.IsContestBelow(this))
                return false;

            return true;
        }

        protected override void ApplyDetails(ITrainerInfo sav, EncounterCriteria criteria, PKM pk)
        {
            base.ApplyDetails(sav, criteria, pk);
            this.CopyContestStatsTo((PK4)pk);
        }

        protected override void SetPINGA(PKM pk, EncounterCriteria criteria)
        {
            var pi = pk.PersonalInfo;
            int gender = criteria.GetGender(PKX.GetGenderFromPID(Species, PID), pi);
            int nature = (int)criteria.GetNature(Nature);
            int ability = criteria.GetAbilityFromNumber(Ability, pi);

            pk.PID = PID;
            pk.Nature = nature;
            pk.Gender = gender;
            pk.RefreshAbility(ability);

            SetIVs(pk);
        }

        protected override bool IsMatchNatureGenderShiny(PKM pkm)
        {
            return PID == pkm.EncryptionConstant;
        }
    }

    public sealed class EncounterTrade4Ranch : EncounterTrade
    {
        public override int Generation => 4;

        public EncounterTrade4Ranch(int species, int level)
        {
            Species = species;
            Level = level;
            Ball = 0x10;
        }

        protected override void ApplyDetails(ITrainerInfo sav, EncounterCriteria criteria, PKM pk)
        {
            base.ApplyDetails(sav, criteria, pk);
            pk.FatefulEncounter = true;
        }
    }
}