using Newtonsoft.Json;


using ServerCore;
using ServerBase;


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


namespace ServerCommon;

public class EscapePositionAttribute : EntityAttributeBase, ICopyEntityAttributeFromDoc, IMergeWithEntityAttribute
{
    [JsonProperty]
    public DateTime escape_available_time = new();

    public EscapePositionAttribute(UserBase owner)
        : base(owner)
    {            
    }

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

        var to_cast_string = typeof(EscapePositionDoc).Name;

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

        //=====================================================================================
        // New Doc => Origin Doc
        //=====================================================================================
        syncOriginDocBaseWithNewDoc<EscapePositionAttribute>(escape_position_doc_base);

        //=====================================================================================
        // Doc => Doc, Attribute
        //=====================================================================================
        var doc_attrib = escape_position_doc_base.getAttrib<EscapePositionAttrib>();
        NullReferenceCheckHelper.throwIfNull(doc_attrib, () => $"doc_attrib is null !!!");

        escape_available_time = doc_attrib.escape_available_time;

        return true;
    }

    public override void onClear()
    {
        escape_available_time = new();
    }

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

        var cloned = new EscapePositionAttribute(owner);
        cloned.escape_available_time = escape_available_time;

        return cloned;
    }

    public Result onMerge(EntityAttributeBase otherEntityAttribute)
    {
        var owner = getOwner();

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

            return result;
        }

        escape_available_time = escape_position_attribute.escape_available_time;

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

            syncOriginDocBaseWithNewDoc<EscapePositionAttribute>(try_pending_doc);
        }

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

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

        escape_position_attrib.escape_available_time = escape_available_time;

        return result;
    }

    public override IEntityAttributeTransactor onNewEntityAttributeTransactor()
    {
        var owner = getOwner() as UserBase;
        NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

        return new EscapePositionAttributeTransactor(owner);
    }

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

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

        var acoount_attribute = owner.getEntityAttribute<AccountAttribute>();
        NullReferenceCheckHelper.throwIfNull(acoount_attribute, () => $"acoount_attribute is null !!!");

        USER_GUID user_guid = acoount_attribute.UserGuid;

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

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

            try_pending_doc = to_copy_doc;

            setTryPendingDocBase(try_pending_doc);
        }

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

        escape_position_attrib.escape_available_time = escape_available_time;

        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 class EscapePositionAttributeTransactor : EntityAttributeTransactorBase<EscapePositionAttribute>, ICopyEntityAttributeTransactorFromEntityAttribute
{
    public EscapePositionAttributeTransactor(UserBase owner)
        : base(owner)
    {
    }

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

        var to_cast_string = typeof(EscapePositionAttribute).Name;

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

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

        copy_to_escape_position_attribute.escape_available_time = copy_from_escape_position_attribute.escape_available_time;
        return true;
    }
}