export type SendEmailArguments = {
    from?: string;
    to: string;
    subject: string;
    body?: string;
    template: string;
    data: EmailData;
    [key: string]: unknown;
};
/**
 * Validates email arguments to ensure they meet the required format.
 * @param args - The arguments to validate
 * @throws Will throw an error if validation fails
 */
export declare function validateSendEmailArguments(args: unknown): asserts args is SendEmailArguments;
export interface EmailService {
    sendEmail: (args: SendEmailArguments) => Promise<void>;
}
/**
 * Retrieves the registered email service from the registry.
 * @returns The email service object.
 */
export declare function getEmailService(): EmailService | undefined;
/** Registers a new email service.
 * @param service - The email service to register.
 * @throws Will throw an error if the service does not implement the EmailService interface.
 */
export declare function registerEmailService(service: EmailService): void;
/**
 * Sends an email using the registered email service.
 * @param id - The identifier for the email type, e.g., 'order_confirmation'
 * @param args - The email arguments
 * @returns A promise that resolves when the email is sent.
 */
export declare function sendEmail(id: string, args: SendEmailArguments): Promise<void>;
export interface EmailData {
    storeInfo?: {
        logo?: {
            src?: string;
            alt?: string;
            height?: string;
            width?: string;
        };
        storeName: string;
        storeEmail: string;
        storeDescription: string;
        phone: string;
        homeUrl: string;
        address: {
            country?: string;
            province?: string;
            city?: string;
            street?: string;
            postalCode?: string;
        };
    };
    [key: string]: unknown;
}
/**
 * Builds email body from a template by replacing placeholders with actual data.
 * @param template - The email template string with placeholders in {{key}} format.
 * @param data - An object containing key-value pairs to replace in the template.
 * @returns The final email body string with placeholders replaced by actual data.
 */
export declare function buildEmailBodyFromTemplate(template: string, data: EmailData): Promise<string>;