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.BuyCartReq), typeof(BuyCartPacketHandler), typeof(GameLoginListener))]
public class BuyCartPacketHandler : PacketRecvHandler
{
    public static bool send_S2C_ACK_BUY_CART(Player player, Result result, List<Item>? items = null)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.BuyCartRes = new BuyCartRes();

        if (result.isSuccess() && items != null)
        {
            var account_attribute = player.getEntityAttribute<AccountAttribute>();
            var level_attribute = player.getEntityAttribute<LevelAttribute>();
            var money_attribute = player.getEntityAttribute<MoneyAttribute>();
            var nickname_attribute = player.getEntityAttribute<NicknameAttribute>();

            var char_info = new CharInfo
            {
                Level = (int)level_attribute!.Level,
                Exp = (int)level_attribute.Exp,

                Gold = money_attribute!.Gold,
                Sapphire = money_attribute.Sapphire,
                Calium = money_attribute.Calium,
                Ruby = money_attribute.Ruby,

                Usergroup = account_attribute!.AuthAdminLevelType.ToString(),
                Operator = (int)account_attribute.AuthAdminLevelType,

                DisplayName = nickname_attribute!.Nickname,
                LanguageInfo = (int)account_attribute.LanguageType,

                IsIntroComplete = 1
            };
            ack_packet.Response.BuyCartRes.CurrencyInfo = char_info;
            ack_packet.Response.BuyCartRes.Items.AddRange(items.Select(info => info.toItemData4Client()));
        }

        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 cart_action = entity_player.getEntityAction<CartAction>();
        if (cart_action == null)
        {
            err_msg = $"Failed to get cart action : {nameof(CartAction)}";
            result.setFail(ServerErrorCode.EntityActionNotFound, err_msg);
            Log.getLogger().error(err_msg);

            send_S2C_ACK_BUY_CART(entity_player, result);
            return result;
        }

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

            send_S2C_ACK_BUY_CART(entity_player, result);
            return result;
        }

        var request = game_msg.Request.BuyCartReq;
        result = await cart_action.BuyCartProcess(request.ItemInfos.ToList());
        if (result.isFail())
        {
            err_msg = $"Failed to BuyCartProcess() !!! : {result.toBasicString()} - {entity_player.toBasicString()}";
            Log.getLogger().error(err_msg);
            return result;
        }

        foreach (var cart_item_info in request.ItemInfos.ToList())
        {
            await QuestManager.It.QuestCheck(entity_player, new QuestItem(EQuestEventTargetType.ITEM, EQuestEventNameType.BOUGHT, cart_item_info.ItemId));
        }
        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_BUY_CART(player, errorResult);
    }
}