/**
 * Coverage Collector
 *
 * Collects coverage data from various test sources.
 * Supports Jest, Vitest, Cypress, Playwright, and LCOV formats.
 */
import type { FileCoverage, CoverageMetrics, CoverageResult, CoverageConfig } from './types.js';
/**
 * Coverage Collector class
 */
export declare class CoverageCollector {
    private config;
    constructor(config?: Partial<CoverageConfig>);
    /**
     * Collect coverage from a file path (auto-detect format)
     */
    collectFromFile(filePath: string): Promise<CoverageResult | null>;
    /**
     * Collect coverage from LCOV format
     */
    collectFromLcov(filePath: string): Promise<CoverageResult | null>;
    /**
     * Collect coverage from JSON format (Vitest/Istanbul)
     */
    collectFromJson(filePath: string): Promise<CoverageResult | null>;
    /**
     * Collect coverage from Istanbul format
     */
    collectFromIstanbul(filePath: string): Promise<CoverageResult | null>;
    /**
     * Parse LCOV format content
     */
    private parseLcov;
    /**
     * Convert LCOV record to FileCoverage
     */
    private convertLcovToFileCoverage;
    /**
     * Convert Vitest coverage data to FileCoverage
     */
    private convertVitestToFileCoverage;
    /**
     * Convert Istanbul coverage data to FileCoverage
     */
    private convertIstanbulToFileCoverage;
    /**
     * Calculate aggregate metrics from file coverage data
     */
    calculateMetrics(files: Record<string, FileCoverage>): CoverageMetrics;
    /**
     * Detect coverage format from file path
     */
    private detectFormat;
    /**
     * Filter files based on include/exclude patterns
     */
    filterFiles(files: Record<string, FileCoverage>): Record<string, FileCoverage>;
    /**
     * Match path against glob pattern
     */
    private matchPattern;
    /**
     * Merge multiple coverage results
     */
    mergeCoverageResults(results: CoverageResult[]): CoverageResult;
    /**
     * Update configuration
     */
    updateConfig(updates: Partial<CoverageConfig>): void;
}
/**
 * Create a coverage collector with default config
 */
export declare function createCoverageCollector(config?: Partial<CoverageConfig>): CoverageCollector;