using Amazon.S3.Model;
using Newtonsoft.Json;


using ServerCore; using ServerBase;


using BUILDING_GUID = System.String;
using META_ID = System.UInt32;
using USER_GUID = System.String;


namespace ServerCommon
{
    public class BuildingAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
    {
        [JsonProperty]
        public BUILDING_GUID BuildingGuid { get; set; } = string.Empty;
        
        [JsonProperty]
        public META_ID BuildingMetaId { get; set; } = 0;
        
        [JsonProperty]
        public string BuildingName { get; set; } = string.Empty;
        
        [JsonProperty]
        public string Description { get; set; } = string.Empty;

        [JsonProperty]
        public string OwnerUserGuid { get; set; } = string.Empty;

        [JsonProperty]
        public CurrencyType RentalCurrencyType { get; set; } = CurrencyType.None;

        [JsonProperty]
        public double RentalCurrencyAmount { get; set; } = 0;

        [JsonProperty]
        public bool IsRentalOpen { get; set; } = false;

        public bool IsLoadFromDb = false;


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

        public override void newEntityAttribute()
        {
            BuildingGuid = System.Guid.NewGuid().ToString("N");
            base.newEntityAttribute();
        }

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

        public override void onClear()
        {
            BuildingGuid = string.Empty;
            BuildingMetaId = 0;
            BuildingName = string.Empty;
            Description = string.Empty;
            OwnerUserGuid = string.Empty;
            RentalCurrencyType = CurrencyType.None;
            RentalCurrencyAmount = 0;
            IsRentalOpen = false;
            IsLoadFromDb = false;

            getAttributeState().reset();
        }

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

            cloned.deepCopyFromBase(this);

            cloned.BuildingGuid = BuildingGuid;
            cloned.BuildingMetaId = BuildingMetaId;
            cloned.BuildingName = BuildingName;
            cloned.Description = Description;
            cloned.OwnerUserGuid = OwnerUserGuid;
            cloned.RentalCurrencyType = RentalCurrencyType;
            cloned.RentalCurrencyAmount = RentalCurrencyAmount;
            cloned.IsRentalOpen = IsRentalOpen;
            cloned.IsLoadFromDb = IsLoadFromDb;

            return cloned;
        }

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

            var owner = getOwner();

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

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

                try_pending_doc = to_copy_doc;

                setTryPendingDocBase(try_pending_doc);
            }

            var building_attrib = try_pending_doc.getAttrib<BuildingAttrib>();
            NullReferenceCheckHelper.throwIfNull(building_attrib, () => $"building_attrib is null !!!");

            building_attrib.BuildingGuid = BuildingGuid;
            building_attrib.BuildingMetaId = BuildingMetaId;
            building_attrib.BuildingName = BuildingName;
            building_attrib.Description = Description;
            building_attrib.OwnerUserGuid = OwnerUserGuid;
            building_attrib.RentalCurrencyType = RentalCurrencyType;
            building_attrib.RentalCurrencyAmount = RentalCurrencyAmount;
            building_attrib.IsRentalOpen = IsRentalOpen;

            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(BuildingDoc).Name;

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

            //=====================================================================================
            // New Doc => Origin Doc
            //=====================================================================================
            syncOriginDocBaseWithNewDoc<BuildingAttribute>(building_doc_base);

            //=====================================================================================
            // Doc => Attribute
            //=====================================================================================
            var building_attrib = building_doc_base.getAttrib<BuildingAttrib>();
            NullReferenceCheckHelper.throwIfNull(building_attrib, () => $"building_attrib is null !!!");

            BuildingGuid = building_attrib.BuildingGuid;
            BuildingMetaId = building_attrib.BuildingMetaId;
            BuildingName = building_attrib.BuildingName;
            Description = building_attrib.Description;
            OwnerUserGuid = building_attrib.OwnerUserGuid;
            RentalCurrencyType = building_attrib.RentalCurrencyType;
            RentalCurrencyAmount = building_attrib.RentalCurrencyAmount;
            IsRentalOpen = building_attrib.IsRentalOpen;
            IsLoadFromDb = true;

            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 building_attribute = otherEntityAttribute as BuildingAttribute;
            if (null == building_attribute)
            {
                err_msg = $"Failed to cast BuildingAttribute !!!, building_attribute is null";
                result.setFail(ServerErrorCode.ClassTypeCastIsNull, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            BuildingGuid = building_attribute.BuildingGuid;
            BuildingMetaId = building_attribute.BuildingMetaId;
            BuildingName = building_attribute.BuildingName;
            Description = building_attribute.Description;
            OwnerUserGuid = building_attribute.OwnerUserGuid;
            RentalCurrencyType = building_attribute.RentalCurrencyType;
            RentalCurrencyAmount = building_attribute.RentalCurrencyAmount;
            IsRentalOpen = building_attribute.IsRentalOpen;
            IsLoadFromDb = building_attribute.IsLoadFromDb;
            
            //=====================================================================================
            // Attribute Try Pending Doc => Origin Doc
            //=====================================================================================

            var try_pending_doc = building_attribute.getTryPendingDocBase() as AccountBaseDoc;
            if (null != try_pending_doc)
            {
                building_attribute.resetTryPendingDocBase();

                syncOriginDocBaseWithNewDoc<BuildingAttribute>(try_pending_doc);
            }

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

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

            building_attrib.BuildingGuid = BuildingGuid;
            building_attrib.BuildingMetaId = BuildingMetaId;
            building_attrib.BuildingName = BuildingName;
            building_attrib.Description = Description;
            building_attrib.OwnerUserGuid = OwnerUserGuid;
            building_attrib.RentalCurrencyType = RentalCurrencyType;
            building_attrib.RentalCurrencyAmount = RentalCurrencyAmount;
            building_attrib.IsRentalOpen = IsRentalOpen;

            return result;
        }
    }

    public class BuildingAttributeTransactor : EntityAttributeTransactorBase<BuildingAttribute>, ICopyEntityAttributeTransactorFromEntityAttribute
    {
        public BuildingAttributeTransactor(EntityBase owner)
            : base(owner)
        {
        }

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

            var to_cast_string = typeof(BuildingAttribute).Name;

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

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

            copy_to_building_attribute.BuildingGuid = copy_from_building_attribute.BuildingGuid;
            copy_to_building_attribute.BuildingMetaId = copy_from_building_attribute.BuildingMetaId;
            copy_to_building_attribute.BuildingName = copy_from_building_attribute.BuildingName;
            copy_to_building_attribute.Description = copy_from_building_attribute.Description;
            copy_to_building_attribute.OwnerUserGuid = copy_from_building_attribute.OwnerUserGuid;
            copy_to_building_attribute.RentalCurrencyType = copy_from_building_attribute.RentalCurrencyType;
            copy_to_building_attribute.RentalCurrencyAmount = copy_from_building_attribute.RentalCurrencyAmount;
            copy_to_building_attribute.IsRentalOpen = copy_from_building_attribute.IsRentalOpen;
            copy_to_building_attribute.IsLoadFromDb = copy_from_building_attribute.IsLoadFromDb;

            return true;
        }
    }
}