/**
 * Progress tracking for indexing operations
 */
import type { ProgressInfo } from './types.js';
/**
 * Track indexing progress
 */
export declare class ProgressTracker {
    private filesProcessed;
    private filesTotal;
    private currentFile?;
    private startTime?;
    private processedTimestamps;
    private maxTimestamps;
    /**
     * Start tracking progress
     */
    start(totalFiles: number): void;
    /**
     * Update progress with new file
     */
    update(fileName?: string): void;
    /**
     * Set total files
     */
    setTotal(total: number): void;
    /**
     * Set processed count
     */
    setProcessed(count: number): void;
    /**
     * Set current file
     */
    setCurrentFile(file?: string): void;
    /**
     * Get current progress
     */
    getProgress(): ProgressInfo;
    /**
     * Calculate percentage complete
     */
    private calculatePercentage;
    /**
     * Calculate processing rate (files per second)
     */
    private calculateRate;
    /**
     * Calculate estimated time remaining (milliseconds)
     */
    private calculateEstimatedTime;
    /**
     * Get elapsed time (milliseconds)
     */
    getElapsedTime(): number;
    /**
     * Format time (milliseconds) to human readable
     */
    formatTime(ms: number): string;
    /**
     * Check if completed
     */
    isComplete(): boolean;
    /**
     * Reset progress
     */
    reset(): void;
}
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