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

namespace PKHeX.Core;

public sealed class MyStatus9 : SaveBlock<SAV9SV>
{
    public MyStatus9(SAV9SV sav, SCBlock block) : base(sav, block.Data) { }

    public int TID
    {
        get => ReadUInt16LittleEndian(Data.AsSpan(0x00));
        set => WriteUInt16LittleEndian(Data.AsSpan(0x00), (ushort)value);
    }

    public int SID
    {
        get => ReadUInt16LittleEndian(Data.AsSpan(0x02));
        set => WriteUInt16LittleEndian(Data.AsSpan(0x02), (ushort)value);
    }

    public int Game
    {
        get => Data[0x04];
        set => Data[0x04] = (byte)value;
    }

    public int Gender
    {
        get => Data[0x05];
        set => Data[0x05] = (byte)value;
    }

    // A6
    public int Language
    {
        get => Data[Offset + 0x07];
        set
        {
            if (value == Language)
                return;
            Data[Offset + 0x07] = (byte)value;

            // For runtime language, the game shifts all languages above Language 6 (unused) down one.
            if (value >= 6)
                value--;
            SAV.SetValue(SaveBlockAccessor9SV.KGameLanguage, (uint)value);
        }
    }

    private Span<byte> OT_Trash => Data.AsSpan(0x10, 0x1A);

    public string OT
    {
        get => SAV.GetString(OT_Trash);
        set => SAV.SetString(OT_Trash, value.AsSpan(), SAV.MaxStringLengthOT, StringConverterOption.ClearZero);
    }

    public byte BirthMonth { get => Data[0x5A]; set => Data[0x5A] = value; }
    public byte BirthDay { get => Data[0x5B]; set => Data[0x5B] = value; }
}