using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections.Concurrent;
using System.Numerics;


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



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 FARMING_PROP_DOC_SK = System.String;
using ANCHOR_META_GUID = System.String;
using MASTER_GUID = System.String;
using GUARD_KEY = System.String;



namespace GameServer;

public class FarmingAction : EntityActionBase
{
    private FarmingEffect? m_progress_farming_nullable = null;


    public FarmingAction(EntityBase owner)
        : base(owner)
    {
    }

    public override async Task<Result> onInit()
    {
        await Task.CompletedTask;

        var result = new Result();

        return result;
    }

    public override void onClear()
    {
        return;
    }

    public async Task<Result> resetFarmingState(bool isApplyDb = true)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var owner = getOwner();
        var server_logic = GameServerApp.getServerLogic();
        var db_client = server_logic.getDynamoDbClient();

        if (owner is UgcNpc ugc_npc)
        {
            var ugc_npc_action = ugc_npc.getEntityAction<UgcNpcAction>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_action, () => $"ugc_npc_action is null !!! - {ugc_npc.toBasicString()}");

            var ugc_npc_attribute = ugc_npc.getEntityAttribute<UgcNpcAttribute>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_attribute, () => $"ugc_npc_attribute is null !!! - {ugc_npc.toBasicString()}");

            if(EntityStateType.UsingByFarming == ugc_npc_attribute.State)
            {
                ugc_npc_action.resetPos(isApplyDb);

                if(true == isApplyDb)
                {
                    (result, var ugc_npc_doc) = await ugc_npc_attribute.toDocBase();
                    if (result.isFail())
                    {
                        return result;
                    }
                    NullReferenceCheckHelper.throwIfNull(ugc_npc_doc, () => $"ugc_npc_doc is null !!! - {ugc_npc.toBasicString()}");

                    result = await db_client.simpleUpdateDocumentWithDocType(ugc_npc_doc);
                    if (result.isFail())
                    {
                        err_msg = $"Failed to simpleUpdateDocumentWithDocType() !!! in resetFarmingState() : {result.toBasicString()} - {ugc_npc.toBasicString()}";
                        Log.getLogger().error(err_msg);

                        return result;
                    }

                    var origin_entity_attribute = ugc_npc.getOriginEntityAttribute<UgcNpcAttribute>();
                    NullReferenceCheckHelper.throwIfNull(origin_entity_attribute, () => $"origin_entity_attribute is null !!! - {ugc_npc.toBasicString()}");

                    origin_entity_attribute.copyEntityAttributeFromDoc(ugc_npc_doc);

                    Log.getLogger().debug($"UgcNpc reset of State !!! in resetFarmingState() : {ugc_npc.toStateString()} - {ugc_npc.toBasicString()}");
                }
            }
        }

        return result;
    }

    public async Task<(Result, FarmingEffect?)> tryStartFarming( ANCHOR_META_GUID anchorMetaGuid, Int16 farmingActionTryCount )
    {
        var result = new Result();
        var err_msg = string.Empty;

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

        var curr_map = game_zone_action.getLinkedToMap();
        if(null == curr_map)
        {
            // 현재 UgcNpc 타입만 해당되는 로직 이다.
            // 추후 인던 관련 설계가 리펙토링되면 재정의된 Map 반환(Master가 입장한 Map 반환) 함수로 처리해야 한다. - kangms
            (result, curr_map) = owner.getCurrMapOfMaster();
            if(result.isFail()) 
            {
                return (result, null);
            }
        }
        NullReferenceCheckHelper.throwIfNull(curr_map, () => $"curr_map is null !!!");

        // 파밍중인 Anchor 인가?
        var found_farming_effect = curr_map.findFarmingEffect(anchorMetaGuid);
        if(null != found_farming_effect)
        {
            err_msg = $"Already farming !!! : anchorMetaGuid:{anchorMetaGuid} - {curr_map.toBasicString()}, {owner.toBasicString()}";
            result.setFail(ServerErrorCode.FarmingAlready, err_msg);

            return (result, null);
        }

        // 파밍 객체를 생성 한다.
        var farming_effect = new FarmingEffect( owner, curr_map);
        result = await farming_effect.onInit();
        if (result.isFail())
        {
            return (result, null);
        }

        var farming_effect_action = farming_effect.getEntityAction<FarmingEffectAction>();
        NullReferenceCheckHelper.throwIfNull(farming_effect_action, () => $"farming_effect_action is null !!! - {owner.toBasicString()}");

        // 파밍을 시도해 본다 !!!
        result = await farming_effect_action.tryStartEffect( anchorMetaGuid, farmingActionTryCount );
        if (result.isFail())
        {
            return (result, null);
        }

        if (owner is UgcNpc ugc_npc)
        {
            var ugc_npc_action = ugc_npc.getEntityAction<UgcNpcAction>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_action, () => $"ugc_npc_action is null !!! - {owner.toBasicString()}");

            var curr_anchor_info = farming_effect_action.getAnchorInfo();
            NullReferenceCheckHelper.throwIfNull(curr_anchor_info, () => $"curr_anchor_info is null !!! - {owner.toBasicString()}");

            var farming_prop_meta_id = curr_anchor_info.AnchorProp.TableId;
            if (false == MetaData.Instance._FarmingPropMetaTable.TryGetValue(farming_prop_meta_id, out var found_farming_prop_meta))
            {
                err_msg = $"Not found FarmingPropMeta in FarmingPropMetaTable !!! : FarmingPropMetaId:{farming_prop_meta_id} - {curr_map.toBasicString()}, {owner.toBasicString()}";
                result.setFail(ServerErrorCode.FarmingPropMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

            if(false == MapHelper.getAnchor(curr_anchor_info.AnchorGuid, out var anchor))
            {
                err_msg = $"Not found FarmingAnchor in Map !!! : FarmingAnchorGuid:{curr_anchor_info.AnchorGuid} - {curr_map.toBasicString()}, {owner.toBasicString()}";
                result.setFail(ServerErrorCode.FarmingAnchorNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

            var base_pos = new System.Numerics.Vector3(curr_anchor_info.AnchorPos.X, curr_anchor_info.AnchorPos.Y, curr_anchor_info.AnchorPos.Z);
            var delta_pos = new System.Numerics.Vector3(found_farming_prop_meta.FarmingStartPosX, found_farming_prop_meta.FarmingStartPosY, found_farming_prop_meta.FarmingStartPosZ);
            var target_position = ugc_npc_action.makeToLocatePosition( base_pos, anchor.Rotation.Pitch, anchor.Rotation.Yaw, anchor.Rotation.Roll
                                                                     , delta_pos, found_farming_prop_meta.FarmingStartRotate );

            ugc_npc_action.modifyStateInfo( EntityStateType.UsingByFarming
                                          , target_position
                                          , anchorMetaGuid
                                          , (META_ID)farming_prop_meta_id
                                          , true );

            ugc_npc_action.setCountingAsConnectedUser(true);
            result = await ugc_npc_action.tryLocateInGameZone(curr_map);
            if (result.isFail())
            {
                return (result, null);
            }
        }

        return (result, farming_effect);
    }

    public async Task completedFarmingStart( QueryExecutorBase queryExecutorBase
                                           , Player player
                                           , FarmingEffect farmingEffect
                                           , DBQWriteToAttributeAllWithTransactionRunner transactionRunner )
    {
        var game_zone_action = player.getEntityAction<GameZoneAction>();
        NullReferenceCheckHelper.throwIfNull(game_zone_action, () => $"game_zone_action is null !!!");

        var curr_map = game_zone_action.getLinkedToMap();
        NullReferenceCheckHelper.throwIfNull(curr_map, () => $"curr_map is null !!!");

        var result = await curr_map.tryLocateFarming(farmingEffect);
        if (result.isSuccess())
        {
            attachFarmingEffect(farmingEffect);

            await transactionRunner.onMergeAfterQueryCommit();
        }

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

        var query_batch = queryExecutorBase.getQueryBatch();
        NullReferenceCheckHelper.throwIfNull(query_batch, () => $"query_batch is null !!! - {player.toBasicString()}");

        var log_action = query_batch.getLogAction();
        NullReferenceCheckHelper.throwIfNull(log_action, () => $"log_action is null !!! - {player.toBasicString()}");

        queryExecutorBase.appendBusinessLog(new FarmingBusinessLog(log_action, farming_effect_action.getFarmingLogInfo()));

        if(farmingEffect.onGetOwnerEntityType() == OwnerEntityType.UgcNpc)
        {
            var ugc_npc = farmingEffect.getRootParent() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(ugc_npc, () => $"ugc_npc is null !!! - {player.toBasicString()}");

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

            UgcNpcNotifyHelper.send_GS2C_NTF_BEACON_COMPACT_UPDATE(player, ugc_npc, ugc_npc_action.toUgcNpcCompact());
        }
    }

    public async Task<(Result, FarmingEffect?, ReceivedMailDoc?)> tryCancelFarming( ANCHOR_META_GUID anchorMetaGuid )
    {
        var result = new Result();
        var err_msg = string.Empty;

        var owner = getOwner();

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

        var curr_map = game_zone_action.getLinkedToMap();
        NullReferenceCheckHelper.throwIfNull(curr_map, () => $"curr_map is null !!!");

        // 파밍중인 Anchor 인가?
        var found_farming_effect = curr_map.findFarmingEffect(anchorMetaGuid);
        if (null == found_farming_effect)
        {
            err_msg = $"Not state farming !!! : anchorMetaGuid:{anchorMetaGuid} - {curr_map.toBasicString()}, {owner.toBasicString()}";
            result.setFail(ServerErrorCode.FarmingNotState, err_msg);

            return (result, null, null);
        }

        var farming_effect_action = found_farming_effect.getEntityAction<FarmingEffectAction>();
        NullReferenceCheckHelper.throwIfNull(farming_effect_action, () => $"farming_effect_action is null !!! - {owner.toBasicString()}");

        // 파밍을 취소를 시도 한다.
        (result, var farming_effect, var to_receive_mail_doc_nullable) = await farming_effect_action.tryCancelFarming( anchorMetaGuid );
        if (result.isFail())
        {
            return (result, null, null);
        }

        return (result, farming_effect, to_receive_mail_doc_nullable);
    }

    public async Task completedFarmingCancel( QueryExecutorBase queryExecutorBase
                                            , Player player, Map currMap
                                            , FarmingEffect farmingEffect, ReceivedMailDoc? receivedMailDoc
                                            , DBQWriteToAttributeAllWithTransactionRunner transactionRunner )
    {
        var result = await currMap.tryRemoveFarming(farmingEffect);
        if (result.isSuccess())
        {
            var parent = farmingEffect.getRootParent();
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {player.toBasicString()}");

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

            farming_action.detachFarmingEffect(farmingEffect);

            await transactionRunner.onMergeAfterQueryCommit();
        }

        var found_user_mail_action = player.getEntityAction<MailAction>();
        NullReferenceCheckHelper.throwIfNull(found_user_mail_action, () => $"found_user_mail_action is null !!! - {player.toBasicString()}");
        
        if (null != receivedMailDoc)
        {
            found_user_mail_action.NewReceivedMail();
        }

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

        var query_batch = queryExecutorBase.getQueryBatch();
        NullReferenceCheckHelper.throwIfNull(query_batch, () => $"query_batch is null !!! - {player.toBasicString()}");

        var log_action = query_batch.getLogAction();
        NullReferenceCheckHelper.throwIfNull(log_action, () => $"log_action is null !!! - {player.toBasicString()}");

        queryExecutorBase.appendBusinessLog(new FarmingBusinessLog(log_action, farming_effect_action.getFarmingLogInfo()));
        queryExecutorBase.appendBusinessLog(new FarmingRewardBusinessLog(log_action, farming_effect_action.getFarmingRewardLogInfo()));

        if (farmingEffect.onGetOwnerEntityType() == OwnerEntityType.UgcNpc)
        {
            var ugc_npc = farmingEffect.getRootParent() as UgcNpc;
            NullReferenceCheckHelper.throwIfNull(ugc_npc, () => $"ugc_npc is null !!! - {player.toBasicString()}");

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

            UgcNpcNotifyHelper.send_GS2C_NTF_BEACON_COMPACT_UPDATE(player, ugc_npc, ugc_npc_action.toUgcNpcCompact());
        }
    }

    public void attachFarmingEffect(FarmingEffect farmingEffect)
    {
        var owner = getOwner();

        m_progress_farming_nullable = farmingEffect;

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

            var selected_character = player_action.getSelectedCharacter();
            NullReferenceCheckHelper.throwIfNull(selected_character, () => $"selected_character is null !!! - {owner.toBasicString()}");

            var character_action = selected_character.getEntityAction<CharacterAction>();
            NullReferenceCheckHelper.throwIfNull(character_action, () => $"character_action is null !!! - {owner.toBasicString()}");

            var farming_effect_attribute = farmingEffect.getEntityAttribute<FarmingEffectAttribute>();
            NullReferenceCheckHelper.throwIfNull(farming_effect_attribute, () => $"farming_effect_attribute is null !!! - {owner.toBasicString()}");

            character_action.setStateInfo(EntityStateType.UsingByFarming, farming_effect_attribute.AnchorMetaGuid, farming_effect_attribute.FarmingPropMetaId);

            character_action.broadcastCharacterInfo();
        }          
    }

    public void detachFarmingEffect(FarmingEffect farmingEffect)
    {
        var owner = getOwner();

        var to_detach_anchor_meta_guid = farmingEffect.getAnchorMetaGuid();
        if (null == m_progress_farming_nullable)
        {
            var err_msg = $"m_progress_farming_nullable is null !!! : toDetachAnchorGuid:{to_detach_anchor_meta_guid} - {owner.toBasicString()}";
            Log.getLogger().error(err_msg);
            return;
        }

        var curr_anchor_meta_guid = m_progress_farming_nullable.getAnchorMetaGuid();
        if (curr_anchor_meta_guid != to_detach_anchor_meta_guid)
        {
            var err_msg = $"Not match AnchorMetaGuid of Farming !!! : currAnchorGuid:{curr_anchor_meta_guid} == toDetachAnchorGuid:{to_detach_anchor_meta_guid} - {owner.toBasicString()}";
            Log.getLogger().error(err_msg);
            return;
        }

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

            var selected_character = player_action.getSelectedCharacter();
            NullReferenceCheckHelper.throwIfNull(selected_character, () => $"selected_character is null !!! - {owner.toBasicString()}");

            var character_action = selected_character.getEntityAction<CharacterAction>();
            NullReferenceCheckHelper.throwIfNull(character_action, () => $"character_action is null !!! - {owner.toBasicString()}");

            character_action.setStateInfo(EntityStateType.None, string.Empty, 0);

            character_action.broadcastCharacterInfo();
        }

        m_progress_farming_nullable = null;
    }

    public void detachFarmingEffectByAnchorMetaGuid(ANCHOR_META_GUID anchorMetaGuid)
    {
        var owner = getOwner();

        var to_detach_anchor_meta_guid = anchorMetaGuid;
        if (null == m_progress_farming_nullable)
        {
            var err_msg = $"m_progress_farming_nullable is null !!! : toDetachAnchorGuid:{to_detach_anchor_meta_guid} - {owner.toBasicString()}";
            Log.getLogger().error(err_msg);
            return;
        }

        var curr_anchor_meta_guid = m_progress_farming_nullable.getAnchorMetaGuid();
        if (curr_anchor_meta_guid != to_detach_anchor_meta_guid)
        {
            var err_msg = $"Not match AnchorMetaGuid of Farming !!! : currAnchorGuid:{curr_anchor_meta_guid} == toDetachAnchorGuid:{to_detach_anchor_meta_guid} - {owner.toBasicString()}";
            Log.getLogger().error(err_msg);
            return;
        }

        m_progress_farming_nullable = null;
    }

    public bool isFarmingHere()
    {
        return m_progress_farming_nullable != null;
    }

    public bool isFarmingState()
    {
        var owner = getOwner();

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

            var selected_character = player_action.getSelectedCharacter();
            NullReferenceCheckHelper.throwIfNull(selected_character, () => $"selected_character is null !!! - {owner.toBasicString()}");

            var character_action = selected_character.getEntityAction<CharacterAction>();
            NullReferenceCheckHelper.throwIfNull(character_action, () => $"character_action is null !!! - {owner.toBasicString()}");

            if(true == character_action.isFarming())
            {
                return true;
            }
        }
        else if (owner is UgcNpc ugc_npc)
        {
            var ugc_npc_action = ugc_npc.getEntityAction<UgcNpcAction>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_action, () => $"ugc_npc_action is null !!! - {owner.toBasicString()}");

            var ugc_npc_attribute = ugc_npc.getEntityAttribute<UgcNpcAttribute>();
            NullReferenceCheckHelper.throwIfNull(ugc_npc_attribute, () => $"ugc_npc_attribute is null !!! - {owner.toBasicString()}");

            if (EntityStateType.UsingByFarming == ugc_npc_attribute.State)
            {
                return true;
            }
        }

        return false;
    }

    public FarmingEffect? getFarmingEffect()
    {
        return m_progress_farming_nullable;
    }
}