using System.Collections.Concurrent;
using System.Numerics;


using Newtonsoft.Json;


using ServerCore;
using ServerBase;


using USER_GUID = System.String;


namespace ServerCommon;

public class RentalInstanceVisitAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
{
    [JsonProperty()]
    public ConcurrentDictionary<string, DateTime> m_rental_instance_visit { get; set; } = new();
    
    [JsonProperty()]
    public DateTime m_next_refresh_time { get; set; } = DateTimeHelper.Current.Date.AddDays(-1);

    
    public RentalInstanceVisitAttribute(EntityBase owner) : base(owner)
    {
        
    }
    
    public override void onClear()
    {
        getAttributeState().reset();
    }

    public override async Task<(Result, DynamoDbDocBase?)> toDocBase(bool isForQuery = true)
    {
        var owner = getOwner();
        NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

        var rental_instance_visit_attribute = owner.getEntityAttribute<RentalInstanceVisitAttribute>();
        NullReferenceCheckHelper.throwIfNull(rental_instance_visit_attribute, () => $"rental_instance_visit_attribute is null !!! - {owner.toBasicString()}");

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

        USER_GUID user_guid = user_attribute.UserGuid;

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

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

            try_pending_doc = to_copy_doc;

            setTryPendingDocBase(try_pending_doc);
        }

        var to_copy_rental_instance_visit_attrib = try_pending_doc.getAttrib<RentalInstanceVisitAttrib>();
        NullReferenceCheckHelper.throwIfNull(to_copy_rental_instance_visit_attrib, () => $"to_copy_rental_instance_visit_attrib is null !!!");
        foreach (var each in m_rental_instance_visit)
        {
            if(false == to_copy_rental_instance_visit_attrib.m_rental_instance_visit_guid.TryAdd(each.Key, each.Value))
            {
                var err_msg = $"Failed to TryAdd() !!!, duplicated Key in Rental Instance Visit Guid !!! : Key:{each.Key} - {owner.toBasicString()}";
                Log.getLogger().error(err_msg);
            }
        }
        to_copy_rental_instance_visit_attrib.m_next_refresh_time = m_next_refresh_time;
        
        //=====================================================================================
        // Doc QueryType 반영
        //=====================================================================================
        (var 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 cloned = new RentalInstanceVisitAttribute(getOwner());
        cloned.deepCopyFromBase(this);

        cloned.m_next_refresh_time = m_next_refresh_time;
        
        cloned.m_rental_instance_visit = new();
        foreach (var dict in m_rental_instance_visit)
        {
            cloned.m_rental_instance_visit.TryAdd(dict.Key, dict.Value);
        }
        return cloned;
    }

    public Result onMerge(EntityAttributeBase otherEntityAttribute)
    {
        Result result = new();
        if(getAttributeState().hasFlag(StateType.Removed))
        {
            return result;
        }

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

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

            return result;
        }

        //=====================================================================================
        // OtherAttribute => Attribute
        //=====================================================================================
        m_rental_instance_visit.Clear();
        foreach (var each in other_attribute.m_rental_instance_visit)
        {
            if (false == m_rental_instance_visit.TryAdd(each.Key, each.Value))
            {
                err_msg = $"Failed to TryAdd() !!!, duplicated Key in Rental Instance Visit Guid !!! : Key:{each.Key} - {owner.toBasicString()}";
                Log.getLogger().error(err_msg);
            }
        }
        m_next_refresh_time = other_attribute.m_next_refresh_time;

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

            syncOriginDocBaseWithNewDoc<RentalInstanceVisitAttribute>(try_pending_doc);
        }

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

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

        rental_instance_visit_attrib.m_rental_instance_visit_guid.Clear();
        foreach (var each in m_rental_instance_visit)
        {
            if(false == rental_instance_visit_attrib.m_rental_instance_visit_guid.TryAdd(each.Key, each.Value))
            {
                err_msg = $"Failed to TryAdd() !!!, duplicated Key in Rental Instance Visit Guid !!! : Key:{each.Key} - {owner.toBasicString()}";
                Log.getLogger().error(err_msg);
            }
        }
        rental_instance_visit_attrib.m_next_refresh_time = m_next_refresh_time;

        return result;
    }

    public bool copyEntityAttributeFromDoc(DynamoDbDocBase customDoc)
    {
        return true;
    }

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


public class RentalInstanceVisitTransactor : EntityAttributeTransactorBase<RentalInstanceVisitAttribute>
{
    public RentalInstanceVisitTransactor(EntityBase owner)
        : base(owner)
    {
    }

    public bool copyEntityAttributeTransactorBaseFromEntityAttribute(EntityAttributeBase? entityAttributeBase)
    {
        return true;
    }
}