interface InvoiceData {
    invoiceNumber: string;
    issueDate: string;
    dueDate: string | null;
    company: {
        name: string;
        email: string;
        phone?: string | null;
        address?: any;
    };
    subscription?: {
        plan: string;
        billingPeriod: string;
        currentPeriodStart?: string | null;
        currentPeriodEnd?: string | null;
        currency: string;
    };
    amount: number;
    currency: string;
    status: string;
    paymentProvider: string;
    transactionId?: string | null;
    paidAt?: string | null;
    lineItems?: Array<{
        description: string;
        amount: number;
        currency: string;
        quantity?: number;
        unitAmount?: number;
        periodStart?: string | null;
        periodEnd?: string | null;
    }>;
    totals?: {
        subtotalAmount: number;
        discountAmount: number;
        creditAmount: number;
        taxAmount: number;
        totalAmount: number;
        amountPaid: number;
        amountDue: number;
    };
}
export declare function generateInvoicePdf(data: InvoiceData): Promise<Buffer>;
export declare function buildInvoiceNumber(invoiceId: string, createdAt: Date): string;
export {};
//# sourceMappingURL=invoicePdfService.d.ts.map