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


using Newtonsoft.Json;
using Google.Protobuf.WellKnownTypes;


using ServerCore; using ServerBase;
using ServerCommon.Cache;


using META_ID = System.UInt32;
using LAND_AUCTION_NUBER = System.Int32;
using USER_GUID = System.String;


namespace ServerCommon
{
    //=============================================================================================
    // 
    // 
    // 
    // 
    //=============================================================================================

    public class LandAuctionActivityAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
    {
        [JsonProperty]
        public META_ID LandMetaId { get; set; } = 0; // 경매 대상 LandData Meta Id

        [JsonProperty]
        public LAND_AUCTION_NUBER AuctionNumber { get; set; } = 0; // 경매 번호


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


        public void resetActivity(META_ID landMetaId)
        {
            LandMetaId = landMetaId;
            AuctionNumber = 0;
        }


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

        public override void onClear()
        {
            LandMetaId = 0;
            AuctionNumber = 0;

            getAttributeState().reset();
        }

        public override EntityAttributeBase onCloned()
        {
            var cloned = new LandAuctionActivityAttribute(getOwner());

            cloned.deepCopyFromBase(this);

            cloned.LandMetaId = LandMetaId;
            cloned.AuctionNumber = AuctionNumber;

            return cloned;
        }

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

            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => "owner is null !!!");

            //=====================================================================================
            // Attribute => try pending Doc
            //=====================================================================================
            var try_pending_doc = getTryPendingDocBase() as LandAuctionActivityDoc;
            if (null == try_pending_doc)
            {
                var to_copy_doc = new LandAuctionActivityDoc(LandMetaId);

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

                try_pending_doc = to_copy_doc;

                setTryPendingDocBase(try_pending_doc);
            }

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

            land_auction_activity_attrib.LandMetaId = LandMetaId;
            land_auction_activity_attrib.AuctionNumber = AuctionNumber;

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

            var to_cast_string = typeof(LandAuctionActivityDoc).Name;

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

            //=====================================================================================
            // New Doc => Origin Doc
            //=====================================================================================
            syncOriginDocBaseWithNewDoc<LandAuctionActivityAttribute>(land_auction_activity_doc);

            //=====================================================================================
            // Doc => Attribute
            //=====================================================================================
            var land_auction_activity_attrib = land_auction_activity_doc.getAttrib<LandAuctionActivityAttrib>();
            NullReferenceCheckHelper.throwIfNull(land_auction_activity_attrib, () => "land_auction_activity_attrib is null !!!");

            LandMetaId = land_auction_activity_attrib.LandMetaId;
            AuctionNumber = land_auction_activity_attrib.AuctionNumber;

            return true;
        }

        public Result onMerge(EntityAttributeBase otherEntityAttribute)
        {
            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            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 => Attribute
            //=====================================================================================
            var land_auction_activity_attribute = otherEntityAttribute as LandAuctionActivityAttribute;
            if (null == land_auction_activity_attribute)
            {
                err_msg = $"Failed to cast land_auction_activity_attribute !!!, land_attribute is null";
                result.setFail(ServerErrorCode.ClassTypeCastIsNull, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            LandMetaId = land_auction_activity_attribute.LandMetaId;
            AuctionNumber = land_auction_activity_attribute.AuctionNumber;

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

                syncOriginDocBaseWithNewDoc<LandAuctionActivityAttribute>(try_pending_doc);
            }

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

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

            land_auction_activity_attrib.LandMetaId = LandMetaId;
            land_auction_activity_attrib.AuctionNumber = AuctionNumber;

            return result;
        }

        public override string toBasicString()
        {
            return base.toBasicString() + $" LandMetaId:{LandMetaId}, AuctionNumber:{AuctionNumber}";
        }
    }


    public class LandAuctionActivityAttributeTransactor : EntityAttributeTransactorBase<LandAuctionActivityAttribute>, ICopyEntityAttributeTransactorFromEntityAttribute
    {
        public LandAuctionActivityAttributeTransactor(EntityBase owner)
            : base(owner)
        {
        }

        public bool copyEntityAttributeTransactorFromEntityAttribute(EntityAttributeBase? entityAttributeBase)
        {
            var err_msg = string.Empty;

            var to_cast_string = typeof(LandAuctionRegistryAttribute).Name;

            var copy_from_land_auction_activity_attribute = entityAttributeBase as LandAuctionActivityAttribute;
            if (null == copy_from_land_auction_activity_attribute)
            {
                err_msg = $"Failed to copyEntityAttributeTransactorBaseFromEntityAttribute() !!!, copy_from_land_auction_activity_attribute is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            var copy_to_land_auction_activity_attribute = getClonedEntityAttribute() as LandAuctionActivityAttribute;
            if (null == copy_to_land_auction_activity_attribute)
            {
                err_msg = $"Failed to copyEntityAttributeTransactorBaseFromEntityAttribute() !!!, copy_to_land_auction_activity_attribute is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            copy_to_land_auction_activity_attribute.LandMetaId = copy_from_land_auction_activity_attribute.LandMetaId;
            copy_to_land_auction_activity_attribute.AuctionNumber = copy_from_land_auction_activity_attribute.AuctionNumber;

            return true;
        }
    }
}