import { CacheService, PropertyService, RemoteRequestService } from '@servicelabsco/nestjs-utility-services';
import { GmailIntegrationOauthDto } from '../dtos/gmail.integration.oauth.dto';
import { BusinessEmailEntity } from '../entities/business.email.entity';
export declare class GmailIntegrationService {
    private readonly propertyService;
    private readonly remoteRequestService;
    private readonly cacheService;
    private redirectUri;
    private oauthScope;
    private client_secret;
    private client_id;
    constructor(propertyService: PropertyService, remoteRequestService: RemoteRequestService, cacheService: CacheService);
    getEmailsList(email_id: number, maxResults?: number): Promise<any>;
    getEmailMessageDetails(email_id: number, message_id: string): Promise<any>;
    getEmailAttachment(email_id: number, message_id: string, attachment_id: string): Promise<any>;
    getCredential(email_id: number): Promise<BusinessEmailEntity>;
    refreshOauthToken(email_id: number): Promise<BusinessEmailEntity>;
    getOauthToken(code: string, body: {
        user_id: number;
        business_id: number;
        product_id: number;
    }): Promise<BusinessEmailEntity>;
    private setOauthToken;
    getOAuthUrl(user_id: number, business_id: number, body: GmailIntegrationOauthDto): Promise<string>;
    private setProperties;
    private getClientId;
    private getClientSecret;
    private getOauthScope;
}