import { ConfigService } from '@nestjs/config';
import { CredentialsProviderService } from '../common/credentials-provider.service';
interface ConversationContext {
    customerId?: string;
    customerName: string;
    phoneNumber: string;
    lastActivity: Date;
    intent?: string;
    pendingAction?: string;
    cart?: Array<{
        productId: string;
        name: string;
        quantity: number;
        price: number;
    }>;
    tenantId?: string;
    businessName?: string;
}
interface LlmResponse {
    message: string;
    action?: string;
    data?: any;
    intent?: string;
    confidence?: number;
}
export declare class LlmService {
    private readonly configService;
    private readonly credentialsProvider;
    private readonly logger;
    private readonly clientCache;
    private readonly conversationHistory;
    constructor(configService: ConfigService, credentialsProvider: CredentialsProviderService);
    private getClient;
    invalidateClientCache(tenantId?: string): void;
    processMessage(userMessage: string, context: ConversationContext): Promise<LlmResponse>;
    private callLlm;
    private getSystemPrompt;
    private getAvailableFunctions;
    private getActionMessage;
    private getFallbackResponse;
    cleanupOldConversations(maxAgeMinutes?: number): void;
}
export {};