using System;
using System.Threading.Tasks;


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


using ServerCore; using ServerBase;
using ServerControlCenter;


namespace ServerCommon
{
    public class ClaimAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
    {
        [JsonProperty]
        public MetaAssets.ClaimType ClaimType { get; set; } = MetaAssets.ClaimType.None;
        [JsonProperty]
        public int ClaimId { get; set; } = 0;
        [JsonProperty]
        public int ActiveRewardIdx { get; set; } = 0;

        public DateTime ActiveTime { get; set; } = new();

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

        public int IsComplete { get; set; } = 0;


        public ClaimAttribute( EntityBase owner, MetaAssets.ClaimType type
                             , EntityBase entityOfOwnerEntityType )
            : base(owner, entityOfOwnerEntityType)
        {
            ClaimType = type;
        }

        public override void onClear()
        {
            ClaimType = MetaAssets.ClaimType.None;
            ClaimId = 0;
            ActiveRewardIdx = 0;
            ActiveTime = DateTimeHelper.MinTime;
            CreateTime = DateTimeHelper.MinTime;
            CompleteTime = DateTimeHelper.MaxTime;
            IsComplete = 0;
        }

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

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

            var user_attribute = owner.getRootParent().getEntityAttribute<UserAttribute>();
            NullReferenceCheckHelper.throwIfNull(user_attribute, () => $"user_attribute is null !!!");

            //=====================================================================================
            // Attribute => try pending Doc
            //=====================================================================================
            var try_pending_doc = getTryPendingDocBase() as ClaimDoc;
            if (null == try_pending_doc)
            {
                var to_copy_doc = new ClaimDoc(user_attribute.UserGuid, ClaimType, ClaimId);

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

                try_pending_doc = to_copy_doc;

                setTryPendingDocBase(try_pending_doc);
            }

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

            to_copy_claim_attrib.ClaimType = ClaimType;
            to_copy_claim_attrib.ClaimId = ClaimId;
            to_copy_claim_attrib.ActiveRewardIdx = ActiveRewardIdx;
            to_copy_claim_attrib.ActiveTime = ActiveTime;
            to_copy_claim_attrib.CreateTime = CreateTime;
            to_copy_claim_attrib.CompleteTime = CompleteTime;
            to_copy_claim_attrib.IsComplete = IsComplete;

            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 override EntityAttributeBase onCloned()
        {
            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var entity_of_owner_entity_type = getEntityOfOwnerEntityType();
            NullReferenceCheckHelper.throwIfNull(entity_of_owner_entity_type, () => $"entity_of_owner_entity_type is null !!!");

            var cloned = new ClaimAttribute(owner, ClaimType, entity_of_owner_entity_type);
            cloned.deepCopyFromBase(this);

            cloned.ActiveTime = ActiveTime;
            cloned.ClaimType = ClaimType;
            cloned.ClaimId = ClaimId;
            cloned.ActiveRewardIdx = ActiveRewardIdx;
            cloned.CompleteTime = CompleteTime;
            cloned.IsComplete = IsComplete;

            return cloned;
        }

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

            var result = new Result();

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

                return result;
            }

            //=====================================================================================
            // OtherAttribute => Attribute
            //=====================================================================================
            ClaimType = other_attribute.ClaimType;
            ClaimId = other_attribute.ClaimId;
            ActiveRewardIdx = other_attribute.ActiveRewardIdx;
            ActiveTime = other_attribute.ActiveTime;
            CreateTime = other_attribute.CreateTime;
            CompleteTime = other_attribute.CompleteTime;
            IsComplete = other_attribute.IsComplete;

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

                syncOriginDocBaseWithNewDoc<ClaimAttribute>(try_pending_doc);
            }

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

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

            claim_attrib.ClaimType = ClaimType;
            claim_attrib.ClaimId = ClaimId;
            claim_attrib.ActiveRewardIdx = ActiveRewardIdx;
            claim_attrib.ActiveTime = ActiveTime;
            claim_attrib.CreateTime = CreateTime;
            claim_attrib.CompleteTime = CompleteTime;
            claim_attrib.IsComplete = IsComplete;

            return result;
        }

        public bool copyEntityAttributeFromDoc(DynamoDbDocBase customDoc)
        {
            var claim_doc_base = customDoc as ClaimDoc;
            if (null == claim_doc_base)
            {
                var to_cast_string = typeof(ClaimDoc).Name;
                var err_msg = $"Failed to copyEntityAttributeFromDoc() !!!, claime_doc_base is null :{to_cast_string}";
                Log.getLogger().error(err_msg);
                return false;
            }

            //=====================================================================================
            // New Doc => Origin Doc
            //=====================================================================================
            syncOriginDocBaseWithNewDoc<ClaimAttribute>(claim_doc_base);

            var claim_attrib = claim_doc_base.getAttrib<ClaimAttrib>();
            NullReferenceCheckHelper.throwIfNull(claim_attrib, () => $"claim_attrib is null !!!");

            ClaimType = claim_attrib.ClaimType;
            ClaimId = claim_attrib.ClaimId;
            ActiveRewardIdx = claim_attrib.ActiveRewardIdx;
            ActiveTime = claim_attrib.ActiveTime;
            CreateTime = claim_attrib.CreateTime;
            CompleteTime = claim_attrib.CompleteTime;
            IsComplete = claim_attrib.IsComplete;

            return true;
        }

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


    public class ClaimAtrributeTransactor : EntityAttributeTransactorBase<ClaimAttribute>
    {
        public ClaimAtrributeTransactor(EntityBase owner)
            : base(owner)
        {
        }

        public bool copyEntityAttributeTransactorBaseFromEntityAttribute(EntityAttributeBase? entityAttributeBase)
        {
            //아직 미사용
            Log.getLogger().info("copyEntityAttributeTransactorBaseFromEntityAttribute call");

            return true;
        }
    }
}