import { ConfigService } from "@nestjs/config";
import { BaseConfigInterface } from "../../../config/interfaces/base.config.interface";
import { AppLoggingService } from "../../logging/services/logging.service";
export interface EmailAttachment {
    filename: string;
    content: Buffer;
    contentType: string;
}
export interface EmailParams {
    to: string | string[];
    subject?: string;
    attachments?: EmailAttachment[];
    [key: string]: any;
}
export declare class EmailService {
    private readonly config;
    private readonly logger;
    private templateBasePath;
    private libraryTemplateBasePath;
    private readonly defaultLocale;
    constructor(config: ConfigService<BaseConfigInterface>, logger: AppLoggingService);
    private loadTemplate;
    sendEmail(templateId: string, emailParams: EmailParams, locale: string): Promise<void>;
    /**
     * Send an already-rendered HTML email through the configured platform
     * provider. No template loading, no Handlebars: callers that render their
     * own body (a360ai's client mailer wraps the studio's layout around the
     * notification body) use this so the fallback path shares the exact
     * Brevo / SendGrid / SMTP transports that `sendEmail` uses.
     */
    sendRendered(params: {
        to: string | string[];
        subject: string;
        html: string;
        attachments?: EmailAttachment[];
    }): Promise<void>;
    private dispatch;
    private sendEmailWithBrevo;
    private sendEmailWithSendGrid;
    private convertToEmailAddressArray;
    private sendEmailWithSmtp;
}
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