MikuSB/GameServer/Server/CallGS/Handlers/Weapon/Weapon_Replace.cs

using MikuSB.Database;
using MikuSB.Proto;
using System.Text.Json;

namespace MikuSB.GameServer.Server.CallGS.Handlers.Weapon;

[CallGSApi("Weapon_Replace")]
public class Weapon_Replace : ICallGSHandler
{
    public async Task Handle(Connection connection, string param, ushort seqNo)
    {
        var player = connection.Player!;
        var req = JsonSerializer.Deserialize<WeaponReplaceParam>(param);
        var cardData = req == null ? null : player.CharacterManager.GetCharacterByGUID((uint)req.CardId);
        var newWeapon = req == null ? null : player.InventoryManager.GetWeaponItem((uint)req.Id);

        if (cardData != null && newWeapon != null)
        {
            var oldWeaponId = cardData.WeaponUniqueId;
            var oldWeapon = oldWeaponId == 0 ? null : player.InventoryManager.GetWeaponItem(oldWeaponId);

            cardData.WeaponUniqueId = newWeapon.UniqueId;
            newWeapon.EquipAvatarId = cardData.Guid;

            if (oldWeapon != null && oldWeapon.UniqueId != newWeapon.UniqueId)
            {
                oldWeapon.EquipAvatarId = 0;
            }

            DatabaseHelper.SaveDatabaseType(player.CharacterManager.CharacterData);
            DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);

            var sync = new NtfSyncPlayer
            {
                Items = { cardData.ToProto() }
            };
            await CallGSRouter.SendScript(connection, "Weapon_Replace", "{}", sync);
            return;
        }

        await CallGSRouter.SendScript(connection, "Weapon_Replace", "{}");
    }
}

internal sealed class WeaponReplaceParam
{
    public int CardId { get; set; }
    public int Id { get; set; }
}