import { Repository } from 'typeorm';
import { AIConfig, AIUsage } from '../entities';
import { OpenRouterClient } from '../clients';
import { ChatRequestDto, ChatResponseDto, UpdateAIConfigDto, UsageStatsDto, AIModelDto } from '../dto';
export declare class AIService {
    private readonly configRepository;
    private readonly usageRepository;
    private readonly openRouterClient;
    private readonly logger;
    constructor(configRepository: Repository<AIConfig>, usageRepository: Repository<AIUsage>, openRouterClient: OpenRouterClient);
    getConfig(tenantId: string): Promise<AIConfig>;
    updateConfig(tenantId: string, dto: UpdateAIConfigDto): Promise<AIConfig>;
    chat(tenantId: string, userId: string, dto: ChatRequestDto): Promise<ChatResponseDto>;
    getModels(): Promise<AIModelDto[]>;
    getCurrentMonthUsage(tenantId: string): Promise<UsageStatsDto>;
    getUsageHistory(tenantId: string, page?: number, limit?: number): Promise<{
        data: AIUsage[];
        total: number;
    }>;
    isServiceReady(): boolean;
}