import type { ProcessingMode, QueueObserver } from "../queue/processor";
export interface RuntimeQueueStatus {
    mode: ProcessingMode;
    running: boolean;
    processing: boolean;
    pending: number;
    lastBatchDurationMs: number;
    lastProcessedAt: string | null;
    lastFailedAt: string | null;
    lastError: string | null;
}
export interface RuntimeMetricsSnapshot {
    startedAt: string;
    uptimeMs: number;
    enqueueCount: number;
    batches: {
        total: number;
        processedItems: number;
        failedItems: number;
        avgDurationMs: number;
    };
    queue: RuntimeQueueStatus;
}
export declare class RuntimeMetricsCollector {
    private readonly startedAtMs;
    private enqueueCount;
    private totalBatches;
    private processedItems;
    private failedItems;
    private totalBatchDurationMs;
    private lastBatchDurationMs;
    private lastProcessedAt;
    private lastFailedAt;
    private lastError;
    createQueueObserver(): QueueObserver;
    snapshot(queue: {
        mode: ProcessingMode;
        running: boolean;
        processing: boolean;
        pending: number;
    }): RuntimeMetricsSnapshot;
}
//# sourceMappingURL=metrics.d.ts.map