import type { LogEntry } from '../core/logger.js';
import { RingBuffer } from './ring-buffer.js';
export interface ToolStats {
    tool: string;
    calls: number;
    errors: number;
    totalDurationMs: number;
    minDurationMs: number;
    maxDurationMs: number;
    lastCalled: string;
}
export interface TimeSeriesBucket {
    minute: string;
    calls: number;
    errors: number;
    totalDurationMs: number;
    count: number;
}
export interface DashboardState {
    startTime: string;
    mode: string;
    projectPath: string;
    totalCalls: number;
    totalErrors: number;
    toolStats: Map<string, ToolStats>;
    timeSeries: TimeSeriesBucket[];
    recentLogs: RingBuffer<LogEntry>;
}
export declare class Aggregator {
    private totalCalls;
    private totalErrors;
    private toolStats;
    private timeSeriesBuf;
    private timeSeriesMap;
    private recentLogs;
    private mode;
    private projectPath;
    private startTime;
    process(entry: LogEntry): void;
    getState(): DashboardState;
    getTopTools(n: number): ToolStats[];
}