using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


using Amazon.DynamoDBv2;


using ServerCore; using ServerBase;


namespace ServerBase;

//=============================================================================================
// DynamoDb ItemRequest 기반 Query Context
//
//                                                                                   - kangms
//=============================================================================================

public partial class DynamoDbItemRequestQueryContext : IQueryContext
{
    private readonly AmazonDynamoDBRequest m_db_request;
    private QueryType m_query_type;

    // TransactionCanceledException 관련 설정
    private DynamoDbQueryExceptionNotifier.ExceptionHandler? m_exception_handler_nullable;


    public DynamoDbItemRequestQueryContext( AmazonDynamoDBRequest dbRequest, QueryType queryType )
    {
        m_db_request = dbRequest;
        m_query_type = queryType;
    }

    public DynamoDbItemRequestQueryContext( AmazonDynamoDBRequest dbRequest, QueryType queryType
                                          , DynamoDbQueryExceptionNotifier.ExceptionHandler? exceptionHandler )
    {
        m_db_request = dbRequest;
        m_query_type = queryType;
        m_exception_handler_nullable = exceptionHandler;
    }

    public bool isValid()
    {
        if (null == m_db_request)
        {
            Log.getLogger().error($"DynamoDbDocument is null !!! - {toBasicString()}");
            return false;
        }

        if (QueryType.None == m_query_type)
        {
            Log.getLogger().error($"DynamoDbDocument QueryType invalid !!! - {toBasicString()}");
            return false;
        }

        return true;
    }

    public string toBasicString()
    {
        return $"{this.getTypeName()}, {m_query_type}, {m_db_request?.toBasicString()}";
    }
}