using System;
using static System.Buffers.Binary.BinaryPrimitives;

namespace PKHeX.Core
{
    public abstract class Misc5 : SaveBlock<SAV5>, IGymTeamInfo
    {
        protected Misc5(SAV5 sav, int offset) : base(sav) => Offset = offset;

        public uint Money
        {
            get => ReadUInt32LittleEndian(Data.AsSpan(Offset));
            set => WriteUInt32LittleEndian(Data.AsSpan(Offset), value);
        }

        public int Badges
        {
            get => Data[Offset + 0x4];
            set => Data[Offset + 0x4] = (byte)value;
        }

        public ushort PokeTransferMinigameScore
        {
            get => ReadUInt16LittleEndian(Data.AsSpan(Offset + TransferMinigameScoreOffset));
            set => WriteUInt16LittleEndian(Data.AsSpan(Offset + TransferMinigameScoreOffset), value);
        }

        protected abstract int BadgeVictoryOffset { get; }
        protected abstract int TransferMinigameScoreOffset { get; }

        private int GetBadgeVictorySpeciesOffset(uint badge, uint slot)
        {
            if (badge >= 8)
                throw new ArgumentOutOfRangeException(nameof(badge));
            if (slot >= 6)
                throw new ArgumentOutOfRangeException(nameof(slot));

            return Offset + BadgeVictoryOffset + (int)(((6 * badge) + slot) * sizeof(ushort));
        }

        public ushort GetBadgeVictorySpecies(uint badge, uint slot)
        {
            var ofs = GetBadgeVictorySpeciesOffset(badge, slot);
            return ReadUInt16LittleEndian(Data.AsSpan(ofs));
        }

        public void SetBadgeVictorySpecies(uint badge, uint slot, ushort species)
        {
            var ofs = GetBadgeVictorySpeciesOffset(badge, slot);
            WriteUInt16LittleEndian(SAV.Data.AsSpan(ofs), species);
        }
    }

    public sealed class Misc5BW : Misc5
    {
        public Misc5BW(SAV5BW sav, int offset) : base(sav, offset) { }
        protected override int TransferMinigameScoreOffset => 0x14;
        protected override int BadgeVictoryOffset => 0x58; // thru 0xB7
    }

    public sealed class Misc5B2W2 : Misc5
    {
        public Misc5B2W2(SAV5B2W2 sav, int offset) : base(sav, offset) { }
        protected override int TransferMinigameScoreOffset => 0x18;
        protected override int BadgeVictoryOffset => 0x5C; // thru 0xBB
    }
}
