/**
 * @license
 * Copyright 2025 Qwen Code
 * SPDX-License-Identifier: Apache-2.0
 */
import { type Config } from '@aetherai/aether-core';
import type { InsightData, InsightProgressCallback } from '../types/StaticInsightTypes.js';
export declare class DataProcessor {
    private config;
    constructor(config: Config);
    private formatDate;
    private formatRecordsForAnalysis;
    private hasUserAndAssistantRecords;
    private analyzeSession;
    private calculateStreaks;
    generateInsights(baseDir: string, facetsOutputDir?: string, onProgress?: InsightProgressCallback): Promise<InsightData>;
    private aggregateFacetsData;
    private generateQualitativeInsights;
    private prepareCommonPromptData;
    private scanChatFiles;
    private generateMetrics;
    private generateFacets;
}