import { ConfigService } from '@nestjs/config';
import { WhatsAppService } from '../whatsapp/whatsapp.service';
import { LlmService } from '../llm/llm.service';
import { CredentialsProviderService } from '../common/credentials-provider.service';
import { WebhookIncomingMessage, WebhookContact, WebhookStatus } from '../whatsapp/interfaces/whatsapp.interface';
export declare class WebhookService {
    private readonly configService;
    private readonly whatsAppService;
    private readonly llmService;
    private readonly credentialsProvider;
    private readonly logger;
    private readonly conversations;
    constructor(configService: ConfigService, whatsAppService: WhatsAppService, llmService: LlmService, credentialsProvider: CredentialsProviderService);
    verifyWebhook(mode: string, token: string, challenge: string): string | null;
    processIncomingMessage(message: WebhookIncomingMessage, contact: WebhookContact, phoneNumberId: string): Promise<void>;
    private handleTextMessage;
    private handleInteractiveMessage;
    private handleImageMessage;
    private handleAudioMessage;
    private handleLocationMessage;
    private handleButtonResponse;
    private handleListResponse;
    private sendWelcomeMessage;
    private sendMainMenu;
    private sendHelpMessage;
    private sendProductCategories;
    private sendCategoryProducts;
    private addToCart;
    private sendOrderStatus;
    private sendFiadoInfo;
    private sendFiadoBalance;
    private sendPaymentOptions;
    private confirmOrder;
    private cancelOrder;
    private executeAction;
    processStatusUpdate(status: WebhookStatus): void;
    private isGreeting;
}