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


using Newtonsoft.Json;


using ServerCore; using ServerBase;


using SESSION_ID = System.Int32;
using WORLD_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 ENTITY_UNIQUE_ID = System.String;
using ANCHOR_META_GUID = System.String;
using TARGET_UNIQUE_ID = System.String;
using NPC_UNIQUE_ID = System.String;
using FARMING_ENTITY_GUID = System.String;
using LOCATION_UNIQUE_ID = System.String;
using FARMING_EFFECT_DOC_LINK_PKSK = System.String;



namespace ServerCommon
{
    public class FarmingEffectOwnerAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
    {
        // 파밍을 하고 있는 OwnerEntityType.User or UgcNpc
        [JsonProperty]
        public OwnerEntityType OwnerEntityType { get; set; } = OwnerEntityType.None;
        // 파밍을 하고 있는 OwnerEntityType.User or UgcNpc GUID
        [JsonProperty]
        public OWNER_GUID OwnerGuid { get; set; } = string.Empty;

        public FARMING_EFFECT_DOC_LINK_PKSK FarmingEffectDocLinkPKSK { get; set; } = string.Empty;



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

        public override void onClear()
        {
            OwnerEntityType = OwnerEntityType.None;
            OwnerGuid = string.Empty;
            FarmingEffectDocLinkPKSK = string.Empty;

            getAttributeState().reset();
        }

        public override EntityAttributeBase onCloned()
        {
            var owner = getOwner();

            var cloned = new FarmingEffectOwnerAttribute(owner);

            cloned.deepCopyFromBase(this);

            cloned.OwnerEntityType = OwnerEntityType;
            cloned.OwnerGuid = OwnerGuid;
            cloned.FarmingEffectDocLinkPKSK = FarmingEffectDocLinkPKSK;

            return cloned;
        }

        public override IEntityAttributeTransactor onNewEntityAttributeTransactor()
        {
            return new FarmingEffectOwnerAttributeTransactor(getOwner());
        }

        public override async Task<(Result, DynamoDbDocBase?)> toDocBase(bool isForQuery = true)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var owner = getOwner();

            if (true == FarmingEffectDocLinkPKSK.isNullOrWhiteSpace())
            {
                err_msg = $"Not make FARMING_EFFECT_DOC_LINK_PKSK !!! - {toBasicString()}, {owner.toBasicString()}";
                result.setFail(ServerErrorCode.FarmingEffectDocLinkPkSkNotSet, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

            //=====================================================================================
            // Attribute => try pending Doc
            //=====================================================================================
            var try_pending_doc = getTryPendingDocBase() as FarmingEffectOwnerDoc;
            if (null == try_pending_doc)
            {
                var to_copy_doc = new FarmingEffectOwnerDoc( OwnerEntityType, OwnerGuid
                                                           , FarmingEffectDocLinkPKSK );

                var origin_doc = getOriginDocBase<FarmingEffectOwnerAttribute>();
                if (null != origin_doc)
                {
                    to_copy_doc.copyTimestampsFromOriginDocBase(origin_doc);
                }

                try_pending_doc = to_copy_doc;

                setTryPendingDocBase(try_pending_doc);
            }

            var to_copy_doc_farming_effect_owner_attrib = try_pending_doc.getAttrib<FarmingEffectOwnerAttrib>();
            NullReferenceCheckHelper.throwIfNull(to_copy_doc_farming_effect_owner_attrib, () => $"to_copy_doc_farming_effect_owner_attrib is null !!! - {owner.toBasicString()}");

            to_copy_doc_farming_effect_owner_attrib.OwnerEntityType = OwnerEntityType;
            to_copy_doc_farming_effect_owner_attrib.OwnerGuid = OwnerGuid;
            to_copy_doc_farming_effect_owner_attrib.FarmingEffectDocLinkPKSK = FarmingEffectDocLinkPKSK;

            if (false == isForQuery)
            {
                return (result, try_pending_doc);
            }

            //=====================================================================================
            // Doc QueryType 반영
            //=====================================================================================
            (result, var to_query_doc) = await applyDoc4Query(try_pending_doc);
            if (result.isFail())
            {
                return (result, null);
            }

            return (result, to_query_doc);
        }

        public Result onMerge(EntityAttributeBase otherEntityAttribute)
        {
            var owner = getOwner();

            var result = new Result();
            var err_msg = string.Empty;

            if (null == otherEntityAttribute)
            {
                err_msg = $"Invalid Param !!!, otherEntityAttribute is null";
                result.setFail(ServerErrorCode.FunctionParamNull, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            //=====================================================================================
            // OtherAttribute => Origin Attribute
            //=====================================================================================
            var other_farming_effect_owner_attribute = otherEntityAttribute as FarmingEffectOwnerAttribute;
            if (null == other_farming_effect_owner_attribute)
            {
                err_msg = $"Failed to cast FarmingEffectOwnerAttribute !!!, other_farming_effect_owner_attribute is null - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ClassTypeCastIsNull, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            OwnerEntityType = other_farming_effect_owner_attribute.OwnerEntityType;
            OwnerGuid = other_farming_effect_owner_attribute.OwnerGuid;
            FarmingEffectDocLinkPKSK = other_farming_effect_owner_attribute.FarmingEffectDocLinkPKSK;

            //=====================================================================================
            // Attribute Try Pending Doc => Origin Doc
            //=====================================================================================
            var try_pending_doc = other_farming_effect_owner_attribute.getTryPendingDocBase() as FarmingEffectOwnerDoc;
            if (null != try_pending_doc)
            {
                other_farming_effect_owner_attribute.resetTryPendingDocBase();

                syncOriginDocBaseWithNewDoc<FarmingEffectOwnerAttribute>(try_pending_doc);
            }

            var origin_doc_base = getOriginDocBase<FarmingEffectOwnerAttribute>();
            if (null == origin_doc_base)
            {
                // DB 에 저장되어 있지 않는 경우 OriginDoc은 null 이다 !!!
                return result;
            }

            var farming_effect_owner_attrib = origin_doc_base.getAttrib<FarmingEffectOwnerAttrib>();
            NullReferenceCheckHelper.throwIfNull(farming_effect_owner_attrib, () => $"farming_effect_owner_attrib is null !!! - {owner.toBasicString()}");

            farming_effect_owner_attrib.OwnerEntityType = OwnerEntityType;
            farming_effect_owner_attrib.OwnerGuid = OwnerGuid;
            farming_effect_owner_attrib.FarmingEffectDocLinkPKSK = FarmingEffectDocLinkPKSK;

            return result;
        }

        public bool copyEntityAttributeFromDoc(DynamoDbDocBase? docBase)
        {
            var err_msg = string.Empty;

            var owner = getOwner();

            var to_cast_string = typeof(FarmingEffectOwnerDoc).Name;

            var farming_location_owner_doc = docBase as FarmingEffectOwnerDoc;
            if (null == farming_location_owner_doc)
            {
                err_msg = $"Failed to copyEntityAttributeFromDoc() !!!, farming_location_owner_doc is null :{to_cast_string} - {owner.toBasicString}";
                Log.getLogger().error(err_msg);
                return false;
            }

            //=====================================================================================
            // New Doc => Origin Doc
            //=====================================================================================
            syncOriginDocBaseWithNewDoc<FarmingEffectOwnerAttribute>(farming_location_owner_doc);

            var farming_effect_owner_attrib = farming_location_owner_doc.getAttrib<FarmingEffectOwnerAttrib>();
            NullReferenceCheckHelper.throwIfNull(farming_effect_owner_attrib, () => $"farming_effect_owner_attrib is null !!! - {owner.toBasicString()}");

            OwnerEntityType = farming_effect_owner_attrib.OwnerEntityType;
            OwnerGuid = farming_effect_owner_attrib.OwnerGuid;
            FarmingEffectDocLinkPKSK = farming_effect_owner_attrib.FarmingEffectDocLinkPKSK;

            return true;
        }

        public void makeFARMING_EFFECT_DOC_LINK_PKSK(LOCATION_UNIQUE_ID locationUniqueId, ANCHOR_META_GUID anchorMetaGuid)
        {
            FarmingEffectDocLinkPKSK = $"{locationUniqueId}#{anchorMetaGuid}";
        }
    }

    public class FarmingEffectOwnerAttributeTransactor : EntityAttributeTransactorBase<FarmingEffectOwnerAttribute>
    {
        public FarmingEffectOwnerAttributeTransactor(EntityBase owner)
            : base(owner)
        {
        }
    }
}