using System.Buffers.Binary;
using System.Text;
using Wonderking.Packets.Outgoing.Data;

namespace Wonderking.Packets.Outgoing;

[PacketId(OperationCode.CharacterCreationResponse)]
public class CharacterCreationResponsePacket : IPacket
{
    public required CharacterData Character { get; set; }

    public void Deserialize(byte[] data)
    {
        throw new NotSupportedException();
    }

    public byte[] Serialize()
    {
        Span<byte> data = stackalloc byte[132];

        BinaryPrimitives.WriteInt32LittleEndian(data.Slice(0 + 132, 4), 0);
        Encoding.ASCII.GetBytes(Character.Name, data.Slice(4 + 132, 20));

        // Job Data
        data[24 + 132] = Character.Job.FirstJob;
        data[25 + 132] = Character.Job.SecondJob;
        data[26 + 132] = Character.Job.ThirdJob;
        data[27 + 132] = Character.Job.FourthJob;

        data[28 + 132] = (byte)Character.Gender;
        BinaryPrimitives.WriteUInt16LittleEndian(data.Slice(49 + 132, 2), Character.Level);
        data[31 + 132] = (byte)Character.Experience;

        // Stats
        BinaryPrimitives.WriteInt16LittleEndian(data.Slice(32 + 132, 2), Character.Stats.Strength);
        BinaryPrimitives.WriteInt16LittleEndian(data.Slice(34 + 132, 2), Character.Stats.Dexterity);
        BinaryPrimitives.WriteInt16LittleEndian(data.Slice(36 + 132, 2), Character.Stats.Intelligence);
        BinaryPrimitives.WriteInt16LittleEndian(data.Slice(38 + 132, 2), Character.Stats.Vitality);
        BinaryPrimitives.WriteInt16LittleEndian(data.Slice(40 + 132, 2), Character.Stats.Luck);
        BinaryPrimitives.WriteInt16LittleEndian(data.Slice(42 + 132, 2), Character.Stats.Wisdom);

        BinaryPrimitives.WriteInt32LittleEndian(data.Slice(44 + 132, 4), Character.Health);
        BinaryPrimitives.WriteInt32LittleEndian(data.Slice(48 + 132, 4), Character.Mana);

        for (var i = 0; i < 20; i++)
        {
            // Equipped Items
            BinaryPrimitives.WriteUInt16LittleEndian(data.Slice(52 + 132 + i * 2, 2),
                Character.EquippedItems.Length > i ? Character.EquippedItems[i] : (ushort)0);

            // Equipped Cash Items
            BinaryPrimitives.WriteUInt16LittleEndian(data.Slice(92 + 132 + i * 2, 2),
                Character.EquippedCashItems.Length > i ? Character.EquippedCashItems[i] : (ushort)0);
        }

        return data.ToArray();
    }
}