import { DynamoDBClient } from '@aws-sdk/client-dynamodb';
import { ConfigService } from '@nestjs/config';
import { TableType } from '../commands';
import { DdbUpdateItem, DetailKey } from '../interfaces';
import { S3Service } from './s3.service';
declare const CLIENT_INSTANCE: unique symbol;
export declare class DynamoDbService {
    private readonly config;
    private readonly s3Service;
    private readonly logger;
    private readonly [CLIENT_INSTANCE];
    private readonly tablePrefix;
    constructor(config: ConfigService, s3Service: S3Service);
    get client(): DynamoDBClient;
    putItem(tableName: string, item: Record<string, any>, conditions?: string): Promise<Record<string, any>>;
    updateItem(tableName: string, key: DetailKey, item: DdbUpdateItem, conditions?: string): Promise<any>;
    getItem(tableName: string, key: DetailKey): Promise<any>;
    deleteItem(tableName: string, key: DetailKey, conditions?: string): Promise<import("@aws-sdk/client-dynamodb").DeleteItemCommandOutput>;
    listItemsByPk(tableName: string, pk: string, sk?: {
        skExpression: string;
        skAttributeValues: Record<string, string>;
        skAttributeNames?: Record<string, string>;
    }, startFromSk?: string, limit?: number, order?: 'asc' | 'desc'): Promise<any>;
    listAllItems(tableName: string, startKey?: DetailKey, limit?: number): Promise<{
        lastKey: DetailKey;
        items: any[];
    }>;
    private ddbItemToObj;
    private objToDdbItem;
    private toDdbKey;
    private buildUpdateExpression;
    private buildUpdateSetExpression;
    private buildUpdateRemoveExpression;
    private buildUpdateDeleteExpression;
    getTableName(moduleName: string, type?: TableType): string;
    getModuleName(tableName: string): string;
}
export {};