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


using ServerCore;
using ServerBase;
using ServerCommon;


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


using SESSION_ID = System.Int32;
using WORLD_META_ID = System.UInt32;
using META_ID = System.UInt32;
using ENTITY_GUID = System.String;
using ACCOUNT_ID = System.String;
using OWNER_GUID = System.String;
using USER_GUID = System.String;
using CHARACTER_GUID = System.String;
using ITEM_GUID = System.String;
using NPC_UNIQUE_ID = System.String;
using UGC_NPC_META_GUID = System.String;
using ANCHOR_META_GUID = System.String;
using ENTITY_INSTANCE_GUID = System.String;




namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(C2GS_REQ_FARMING_CANCEL), typeof(FarmingCancelPacketHandler), typeof(GameLoginListener))]
public class FarmingCancelPacketHandler : PacketRecvHandler
{
    public static bool send_GS2C_ACK_FARMING_CANCEL( Player owner, ANCHOR_META_GUID anchorMetaGuid
                                                   , Result result
                                                   , FarmingSummary? farmingSummary = null)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;

        var ack = new GS2C_ACK_FARMING_CANCEL();
        ack.FarmingAnchorMetaId = anchorMetaGuid;

        if (result.isSuccess())
        {
            ack.FarmingSummary = farmingSummary;

            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);
            }
        }

        ack_packet.Response.AckFarmingCancel = ack;

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

        return true;
    }

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

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

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

        var request = recv_msg.Request.ReqFarmingCancel;

        send_GS2C_ACK_FARMING_CANCEL(player, request.FarmingAnchorMetaId, errorResult);
    }

    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;
        NullReferenceCheckHelper.throwIfNull(recv_msg, () => $"recv_msg is null !!! - {player.toBasicString()}");

        var request = recv_msg.Request.ReqFarmingCancel;

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

        var selected_character = player_action.getSelectedCharacter();
        if (null == selected_character)
        {
            err_msg = $"Not selected Character !!! - {player.toBasicString()}";
            result.setFail(ServerErrorCode.CharacterNotSelected, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_GS2C_ACK_FARMING_CANCEL(player, request.FarmingAnchorMetaId, result);
            return result;
        }

        return await tryCancelFarming(player, request.FarmingAnchorMetaId);
    }

    public static async Task<Result> tryCancelFarming(Player player, ANCHOR_META_GUID anchorMetaGuid)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var server_logic = GameServerApp.getServerLogic();

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

        var curr_map = game_zone_action.getLinkedToMap();
        NullReferenceCheckHelper.throwIfNull(curr_map, () => $"curr_map is null !!! - {player.toBasicString()}");

        FarmingEffect? farming_effect_for_quest_check_nullable = null;

        var fn_farming_cancel = async delegate ()
        {
            var result = new Result();

            var game_zone_action = player.getEntityAction<GameZoneAction>();
            NullReferenceCheckHelper.throwIfNull(game_zone_action, () => $"game_zone_action is null !!!");

            var curr_map = game_zone_action.getLinkedToMap();
            if (null == curr_map)
            {
                err_msg = $"Not joined GameZone !!! - {player.toBasicString()}";
                result.setFail(ServerErrorCode.GameZoneNotJoin, err_msg);
                Log.getLogger().error(result.toBasicString());

                send_GS2C_ACK_FARMING_CANCEL(player, anchorMetaGuid, result);
                return result;
            }

            var found_anchor_info = curr_map.findAnchorInfo(anchorMetaGuid);
            if (null == found_anchor_info)
            {
                err_msg = $"Not found AnchorInfo !!! - {player.toBasicString()}";
                result.setFail(ServerErrorCode.FarmingAnchorNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                send_GS2C_ACK_FARMING_CANCEL(player, anchorMetaGuid, result);
                return result;
            }

            using (found_anchor_info.getAsyncLock().Lock())
            {
                var player_farming_action = player.getEntityAction<FarmingAction>();
                NullReferenceCheckHelper.throwIfNull(player_farming_action, () => $"player_farming_action is null !!! - {player.toBasicString()}");

                (result, var farming_effect, var to_receive_mail_doc_nullable) = await player_farming_action.tryCancelFarming( anchorMetaGuid );
                if (result.isFail())
                {
                    err_msg = $"Failed to tryCancelFarming() !!! : {result.toBasicString()} - {player.toBasicString()}";
                    Log.getLogger().error(err_msg);

                    send_GS2C_ACK_FARMING_CANCEL(player, anchorMetaGuid, result);
                    return result;
                }
                NullReferenceCheckHelper.throwIfNull(farming_effect, () => $"farming_effect is null !!! - {player.toBasicString()}");

                var batch = new QueryBatchEx<QueryRunnerWithDocument>( player, LogActionType.FarmingCancel
                                                                     , server_logic.getDynamoDbClient()
                                                                     , true );
                {
                    var with_transaction_runner = new DBQWriteToAttributeAllWithTransactionRunner();
                    if(null != to_receive_mail_doc_nullable)
                    {
                        batch.addQuery(new DBQEntityWrite(to_receive_mail_doc_nullable));
                    }
                    
                    batch.addQuery(with_transaction_runner);
                    batch.addQuery( new QueryFinal(), async (_query) =>
                    {
                        await player_farming_action.completedFarmingCancel( _query
                                                                          , player, curr_map
                                                                          , farming_effect, to_receive_mail_doc_nullable
                                                                          , with_transaction_runner );

                        return QueryBatchBase.QueryResultType.Success;
                    });
                }

                result = await QueryHelper.sendQueryAndBusinessLog(batch);
                if (result.isFail())
                {
                    send_GS2C_ACK_FARMING_CANCEL( player, anchorMetaGuid
                                                , result);
                    return result;
                }

                send_GS2C_ACK_FARMING_CANCEL( player, anchorMetaGuid
                                            , result
                                            , farming_effect.toFarmingSummary());

                FarmingNotifyHelper.send_GS2C_NTF_FARMING_CANCEL(player, farming_effect);

                farming_effect_for_quest_check_nullable = farming_effect;
            }

            return result;
        };

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

        await farmingCancleQuestCheck(player, anchorMetaGuid, farming_effect_for_quest_check_nullable);

        return result;
    }

    private static async Task farmingCancleQuestCheck(Player player, string farmingPropId, FarmingEffect? farmingEffect)
    {
        if (null == farmingEffect) return;

        var farming_effect_action = farmingEffect.getEntityAction<FarmingEffectAction>();
        NullReferenceCheckHelper.throwIfNull(farming_effect_action, () => $"farming_effect_action is null !!!");
        
        var summoned_entity_type = farming_effect_action.toFarmingSummonedEntityType();
        string typeName = QuestMetaHelper.convertFarmingSummonedEntityTypeToQuestEntityType(summoned_entity_type);
        await QuestManager.It.QuestCheck(player, new QuestFarming(EQuestEventTargetType.FARMING, EQuestEventNameType.STOPPED, farmingPropId, typeName));
    }
}