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

namespace PKHeX.Core
{
    public sealed class Situation6 : SaveBlock<SAV6>
    {
        public Situation6(SAV6 SAV, int offset) : base(SAV) => Offset = offset;

        public int M
        {
            get => ReadUInt16LittleEndian(Data.AsSpan(Offset + 0x02));
            set
            {
                var span = Data.AsSpan(Offset + 0x02);
                WriteUInt16LittleEndian(span, (ushort)value);
                WriteUInt16LittleEndian(span[0xF4..], (ushort)value);
            }
        }

        public float X
        {
            get => ReadSingleLittleEndian(Data.AsSpan(Offset + 0x10)) / 18;
            set
            {
                var span = Data.AsSpan(Offset + 0x10);
                WriteSingleLittleEndian(span, value * 18);
                WriteSingleLittleEndian(span[0xF4..], value * 18);
            }
        }

        public float Z
        {
            get => ReadSingleLittleEndian(Data.AsSpan(Offset + 0x14));
            set
            {
                var span = Data.AsSpan(Offset + 0x14);
                WriteSingleLittleEndian(span, value * 18);
                WriteSingleLittleEndian(span[0xF4..], value * 18);
            }
        }

        public float Y
        {
            get => ReadSingleLittleEndian(Data.AsSpan(Offset + 0x18)) / 18;
            set
            {
                var span = Data.AsSpan(Offset + 0x18);
                WriteSingleLittleEndian(span, value * 18);
                WriteSingleLittleEndian(span[0xF4..], value * 18);
            }
        }

        // xy only
        public int Style
        {
            get => Data[Offset + 0x14D];
            set => Data[Offset + 0x14D] = (byte)value;
        }
    }
}
