import type { ChatCompletionRequest, ChatCompletionResponse } from '../handlers/ChatHandler';
import type { PodChatKitStore } from '../chatkit/pod-store';
import { type AuthContext } from '../auth/AuthContext';
import type { AiGatewayService } from '../ai-gateway/AiGatewayService';
import type { UsageRepository } from '../../storage/quota/UsageRepository';
import type { QuotaService } from '../../quota/QuotaService';
export interface VercelChatServiceOptions {
    aiGatewayService?: Pick<AiGatewayService, 'complete' | 'execute' | 'listModels'>;
}
/**
 * @deprecated Compatibility facade for legacy internal ChatService callers.
 *
 * Public `/v1/*` routes are owned by AiGatewayHandler. This class only keeps
 * older ChatKit/internal call sites working while routing every inference and
 * model-list request through the unified AI Connection gateway runtime.
 */
export declare class VercelChatService {
    private readonly _store;
    private readonly logger;
    private usageRepo?;
    private quotaService?;
    private readonly aiGatewayService?;
    constructor(_store: PodChatKitStore, options?: VercelChatServiceOptions);
    /**
     * Set optional usage tracking dependencies (injected after construction).
     */
    setUsageTracking(usageRepo: UsageRepository, quotaService: QuotaService): void;
    complete(request: ChatCompletionRequest, auth: AuthContext): Promise<ChatCompletionResponse>;
    stream(request: ChatCompletionRequest, auth: AuthContext): Promise<{
        toTextStreamResponse: () => Response;
    }>;
    responses(body: unknown, auth: AuthContext): Promise<Record<string, unknown>>;
    messages(body: unknown, auth: AuthContext): Promise<Record<string, unknown>>;
    listModels(auth?: AuthContext): Promise<any[]>;
    private completeViaGateway;
    private requireAiGatewayService;
    private podUsageScope;
    private extractTotalTokens;
    private recordForwardedUsage;
    /**
     * Check if account has remaining token quota.
     */
    private checkTokenQuota;
    /**
     * Record token usage (fire-and-forget).
     */
    private recordTokenUsage;
}