caliverse_server/GameServer/Contents/ItemFunction/PacketHandler/ItemUsePacketHandler.cs

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


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;


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



namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(UseItemReq), typeof(ItemUsePacketHandler), typeof(GameLoginListener))]

public class ItemUsePacketHandler : PacketRecvHandler
{
    public static bool send_S2C_ACK_ITEM_USE(Player owner, Result result, Item? updatedItem = null)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

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

        if (result.isSuccess())
        {
            ArgumentNullReferenceCheckHelper.throwIfNull(updatedItem, () => $"updatedItem is null !!! - {owner.toBasicString()}");

            var item_attribute_base = updatedItem.getEntityAttribute<ItemAttributeBase>();
            NullReferenceCheckHelper.throwIfNull(item_attribute_base, () => $"item_attribute_base is null !!! - {owner.toBasicString()}");

            ack_packet.Response.UseItemRes.ItemGuid = item_attribute_base.ItemGuid;
            ack_packet.Response.UseItemRes.Count = item_attribute_base.ItemStackCount;

            var found_transaction_runner = owner.findTransactionRunner(TransactionIdType.PrivateContents);
            if (null == found_transaction_runner)
            {
                var err_msg = $"Not found TransactionRunner !!! : {owner.toBasicString()}";
                Log.getLogger().error(err_msg);
            }
            else
            {
                ack_packet.Response.UseItemRes.CommonResult = found_transaction_runner.getCommonResult();
            }
        }

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

        return true;
    }

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

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

        var recv_msg = recvMessage as ClientToGame;
        ArgumentNullReferenceCheckHelper.throwIfNull(recv_msg, () => $"recv_msg is null !!! - {player.toBasicString()}");
        var request = recv_msg.Request.UseItemReq;
        ArgumentNullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {player.toBasicString()}");

        var server_logic = GameServerApp.getServerLogic();

        var inventory_action = player.getEntityAction<InventoryActionBase>();
        NullReferenceCheckHelper.throwIfNull(inventory_action, () => $"inventory_action is null !!! - {player.toBasicString()} ");

        MetaAssets.ItemMetaData? item_meta = null;
        var fn_item_use = async delegate ()
        {
            var result = new Result();

            (result, var used_item) = await inventory_action.tryUseItemByGuid(request.ItemGuid, (ushort)request.Count);
            if (result.isFail() || null == used_item)
            {
                err_msg = $"Failed to tryUseItemByGuid() !!! : {result.toBasicString()} - {player.toBasicString()}";
                Log.getLogger().error(err_msg);

                send_S2C_ACK_ITEM_USE(player, result);
                return result;
            }
            item_meta = used_item.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {player.toBasicString()} ");

            var batch = new QueryBatchEx<QueryRunnerWithDocument>( player, LogActionType.ItemUse
                                                               , server_logic.getDynamoDbClient()
                                                               , true );
            {
                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
            }

            var invokers = MakeItemUseIogInvoker(item_meta, request.Count);
            batch.appendBusinessLogs(invokers);

            result = await QueryHelper.sendQueryAndBusinessLog(batch);
            if (result.isFail())
            {
                return result;
            }

            player.sendNotifyMessage();
            send_S2C_ACK_ITEM_USE(player, result, used_item);

            return result;
        };

        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "ItemUse", fn_item_use);
        if (result.isFail())
        {
            err_msg = $"Failed to runTransactionRunnerSafely() !!! : {result.toBasicString()} - {player.toBasicString()}";
            Log.getLogger().error(err_msg);

            return result;
        }

        NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {player.toBasicString()} ");
        if (item_meta.TypeLarge == EItemLargeType.EXPENDABLE)
        {
            if (item_meta.TypeSmall == EItemSmallType.REGISTER_ITEM_SOCIAL_ACTION || item_meta.TypeSmall == EItemSmallType.REGISTER_ITEM_INTERIOR)
            {
                await QuestManager.It.QuestCheck(player, new QuestItem(EQuestEventTargetType.ITEM, EQuestEventNameType.REGISTERED, item_meta.ItemId));
            }
        }

        return result;
    }

    public List<ILogInvoker> MakeItemUseIogInvoker(ItemMetaData item_meta_data, int count)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var invokers = new List<ILogInvoker>();

        switch(item_meta_data.TypeSmall)
        {
            case EItemSmallType.REGISTER_ITEM_SOCIAL_ACTION:
                {
                    var social_action_log_info = SocialActionBusinessLogHelper.toSocialActionLogInfo(item_meta_data.Register_id);
                    var social_action_business_log = new SocialActionBusinessLog(social_action_log_info);
                    invokers.Add(social_action_business_log);
                }
                break;
            case EItemSmallType.RECIPE:
                var task_log_data = CraftBusinessLogHelper.toCraftRecipeLogInfo(item_meta_data.Register_id);
                invokers.Add(new CraftRecipeBusinessLog(task_log_data));
                break;
            default:
                return invokers;
        }
        
        return invokers;
    }
}