using Newtonsoft.Json;
using ServerCore; using ServerBase;
using USER_GUID = System.String;
using META_ID = System.UInt32;

namespace ServerCommon
{
    public class PackageRepeatAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
    {
        [JsonProperty]
        public string OrderGuid { get; set; } = string.Empty;

        [JsonProperty]
        public META_ID ProductMetaId { get; set; } = 0;

        [JsonProperty]
        public int LeftCount { get; set; } = 0;

        [JsonProperty]
        public DateTime NextGiveTime { get; set; } = new();

        public PackageRepeatAttribute(EntityBase owner, EntityBase entityOfOwnerEntityType)
            : base(owner, entityOfOwnerEntityType)
        {
        }

        public override void onClear()
        {
            OrderGuid = string.Empty;
            ProductMetaId = 0;
            LeftCount = 0;
            NextGiveTime = new();
        }

        public override EntityAttributeBase onCloned()
        {
            var owner_entity = getEntityOfOwnerEntityType();
            ArgumentNullReferenceCheckHelper.throwIfNull(owner_entity, () => $"owner_entity is null !!!");
            var cloned = new PackageRepeatAttribute(getOwner(), owner_entity);
            cloned.OrderGuid = OrderGuid;
            cloned.ProductMetaId = ProductMetaId;
            cloned.LeftCount = LeftCount;
            cloned.NextGiveTime = NextGiveTime;
            return cloned;
        }

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

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

            var acoount_attribute = getOwner().getRootParent().getEntityAttribute<AccountAttribute>();
            ArgumentNullException.ThrowIfNull(acoount_attribute);

            USER_GUID user_guid = acoount_attribute.UserGuid;

            //=====================================================================================
            // Attribute => try pending Doc
            //=====================================================================================
            var try_pending_doc = getTryPendingDocBase() as PackageRepeatDoc;
            if (null == try_pending_doc)
            {
                var to_copy_doc = new PackageRepeatDoc(user_guid, OrderGuid);
                var origin_doc = getOriginDocBase<PackageRepeatAttribute>();
                if (null != origin_doc)
                {
                    to_copy_doc.copyTimestampsFromOriginDocBase(origin_doc);
                }

                try_pending_doc = to_copy_doc;
                
                setTryPendingDocBase(try_pending_doc);
            }

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

            package_repeat_attrib.OrderGuid = OrderGuid;
            package_repeat_attrib.ProductMetaId = ProductMetaId;
            package_repeat_attrib.LeftCount = LeftCount;
            package_repeat_attrib.NextGiveTime = NextGiveTime;

            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, to_query_doc);
            }

            return (result, to_query_doc);
        }

        public bool copyEntityAttributeFromDoc(DynamoDbDocBase docBase)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var to_cast_string = typeof(PackageRepeatDoc).Name;

            var package_doc_base = docBase as PackageRepeatDoc;
            if (null == package_doc_base)
            {
                err_msg = $"Failed to copyEntityAttributeFromDoc() !!!, package_doc_base is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }
            //=====================================================================================
            // New Doc => Origin Doc
            //=====================================================================================
            syncOriginDocBaseWithNewDoc<PackageRepeatAttribute>(package_doc_base);
            
            
            //=====================================================================================
            // Doc => Attribute
            //=====================================================================================
            var packate_repeat_attrib = package_doc_base.getAttrib<PackageRepeatAttrib>();
            if (packate_repeat_attrib == null)
            {
                err_msg = $"Failed to get package attrib : {nameof(PackageRepeatAttrib)}";
                result.setFail(ServerErrorCode.EntityAttributeIsNull, err_msg);
                Log.getLogger().error(err_msg);
                return false;
            }

            OrderGuid = packate_repeat_attrib.OrderGuid;
            ProductMetaId = packate_repeat_attrib.ProductMetaId;
            LeftCount = packate_repeat_attrib.LeftCount;
            NextGiveTime = packate_repeat_attrib.NextGiveTime;

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

                return result;
            }

            OrderGuid = package_repeat_attribute.OrderGuid;
            ProductMetaId = package_repeat_attribute.ProductMetaId;
            LeftCount = package_repeat_attribute.LeftCount;
            NextGiveTime = package_repeat_attribute.NextGiveTime;

            //=====================================================================================
            // Attribute Try Pending Doc => Origin Doc
            //=====================================================================================
            var try_pending_doc = package_repeat_attribute.getTryPendingDocBase() as PackageRepeatDoc;
            if (null != try_pending_doc)
            {
                package_repeat_attribute.resetTryPendingDocBase();
                
                syncOriginDocBaseWithNewDoc<PackageRepeatAttribute>(try_pending_doc);
            }

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

            var package_repeat_attrib = origin_doc_base.getAttrib<PackageRepeatAttrib>();
            NullReferenceCheckHelper.throwIfNull(package_repeat_attrib, () => $"package_repeat_attrib is null !!! - {owner.toBasicString()}");
            
            package_repeat_attrib.OrderGuid = OrderGuid;
            package_repeat_attrib.ProductMetaId = ProductMetaId;
            package_repeat_attrib.LeftCount = LeftCount;
            package_repeat_attrib.NextGiveTime = NextGiveTime;

            return result;
        }
    }
    public class PackageRepeatAttributeTransactor : EntityAttributeTransactorBase<PackageRepeatAttribute>, ICopyEntityAttributeTransactorFromEntityAttribute
    {
        public PackageRepeatAttributeTransactor(EntityBase owner)
            : base(owner)
        {
        }

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

            var to_cast_string = typeof(PackageRepeatAttribute).Name;

            var copy_from_attribute = entityAttributeBase as PackageRepeatAttribute;
            if (null == copy_from_attribute)
            {
                err_msg = $"Failed to copyEntityAttributeTransactorFromEntityAttribute() !!!, copy_from_package_repeat_attribute is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            var copy_to_attribute = getClonedEntityAttribute() as PackageRepeatAttribute;
            if (null == copy_to_attribute)
            {
                err_msg = $"Failed to copyEntityAttributeTransactorFromEntityAttribute() !!!, copy_to_package_repeat_attribute is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            copy_to_attribute.OrderGuid = copy_from_attribute.OrderGuid;
            copy_to_attribute.ProductMetaId = copy_from_attribute.ProductMetaId;
            copy_to_attribute.LeftCount = copy_from_attribute.LeftCount;
            copy_to_attribute.NextGiveTime = copy_from_attribute.NextGiveTime;

            return true;
        }
    }
}