using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon;


using static ClientToGameReq.Types;
using static ClientToGameRes.Types;




namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.C2GS_REQ_BEACON_SHOP_REGISTER_ITEM), typeof(BeaconShopRegisterItemPacketHandler), typeof(GameLoginListener))]
public class BeaconShopRegisterItemPacketHandler : PacketRecvHandler
{
    public static bool send_S2C_ACK_BEACON_SHOP_REGISTER_ITEM(Player player, Result result, BeaconShopItem? beaconShopItem, CommonResult? commonResult = null)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.AckBeaconShopRegisterItem = new GS2C_ACK_BEACON_SHOP_REGISTER_ITEM();

        if (result.isSuccess() && beaconShopItem != null)
        {
            var beacon_shop_attribute  = beaconShopItem.getEntityAttribute<BeaconShopItemAttribute>();
            NullReferenceCheckHelper.throwIfNull(beacon_shop_attribute, () => $"beacon_shop_attribute is null !!!");

            ack_packet.Response.AckBeaconShopRegisterItem.ItemGuid = beacon_shop_attribute.ItemGuid;
            ack_packet.Response.AckBeaconShopRegisterItem.ItemMetaId = (int)beacon_shop_attribute.ItemMetaId;
            ack_packet.Response.AckBeaconShopRegisterItem.ItemAmount = beacon_shop_attribute.ItemStackCount;
            ack_packet.Response.AckBeaconShopRegisterItem.SellingPrice = beacon_shop_attribute.PriceForUnit;
            ack_packet.Response.AckBeaconShopRegisterItem.BeaconGuid = beacon_shop_attribute.BeaconGuid;
            ack_packet.Response.AckBeaconShopRegisterItem.SellingFinishTime = Timestamp.FromDateTime(beacon_shop_attribute.SellingFinishTime);
            ack_packet.Response.AckBeaconShopRegisterItem.CommonResult = commonResult;
        }

        if (false == GameServerApp.getServerLogic().onSendPacket(player, ack_packet))
        {
            return false;
        }

        return true;
    }

    public override async Task<Result> onProcessPacket(ISession entityWithSession, IMessage recvMessage)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var entity_player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(entity_player, () => $"entity_player is null !!!" );

        var beacon_shop_action = entity_player.getEntityAction<BeaconShopAction>();
        if (beacon_shop_action == null)
        {
            err_msg = $"Failed to get beacon shop action : {nameof(BeaconShopAction)}";
            result.setFail(ServerErrorCode.EntityActionNotFound, err_msg);
            Log.getLogger().error(err_msg);

            send_S2C_ACK_BEACON_SHOP_REGISTER_ITEM(entity_player, result, null);
            return result;
        }

        var game_msg = recvMessage as ClientToGame;
        if (game_msg == null)
        {
            err_msg = $"Failed to cast ClientToGame !!! : {nameof(ClientToGame.Request.ReqBeaconShopRegisterItem)}";
            result.setFail(ServerErrorCode.ClassTypeCastIsNull, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_BEACON_SHOP_REGISTER_ITEM(entity_player, result, null);
            return result;
        }

        var request = game_msg.Request.ReqBeaconShopRegisterItem;

        if (request.ItemGuid == string.Empty ||
            request.BeaconGuid == string.Empty ||
            request.ItemAmount <= 0 ||
            request.SellingPrice <= 0)
        {
            err_msg = $"Invalid Request Argument !!! : ItemGuid : {request.ItemGuid}, BeaconGuid : {request.BeaconGuid}, ItemAmount : {request.ItemAmount}, SellingPrice : {request.SellingPrice}";
            result.setFail(ServerErrorCode.BeaconShopInvalidArgument, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_BEACON_SHOP_REGISTER_ITEM(entity_player, result, null);
            return result;
        }

        result = await beacon_shop_action.tryRegisterItemToBeaconShop(request.ItemGuid, (UInt16)request.ItemAmount, request.SellingPrice, request.BeaconGuid);
        if (result.isFail())
        {
            send_S2C_ACK_BEACON_SHOP_REGISTER_ITEM(entity_player, result, null);
            return result;
        }

        return result;
    }

    public override async Task onProcessPacketException(ISession entityWithSession, IMessage recvMessage
                               , Result errorResult)
    {
        await Task.CompletedTask;

        var player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!! - {entityWithSession.toBasicString()}");

        send_S2C_ACK_BEACON_SHOP_REGISTER_ITEM(player, errorResult, null);
    }
}