import type { CommitRecord } from '../parsers/log-parser.js';
import type { FileChangeRecord } from '../parsers/numstat-parser.js';
export interface BusFactorResult {
    scope: string;
    busFactor: number;
    topAuthors: {
        name: string;
        weightedCommits: number;
    }[];
}
export interface SinglePointRisk {
    filePath: string;
    soleAuthor: string;
    totalChanges: number;
    authorPercentage: number;
    firstSeen: string;
    lastSeen: string;
    spanMonths: number;
}
export interface BusFactorData {
    overall: BusFactorResult;
    perDirectory: Map<string, BusFactorResult>;
    singlePointRisks: SinglePointRisk[];
}
/**
 * Analyze bus factor for the repository.
 *
 * @param commits - Parsed commit records (author identity resolved via .mailmap through %aN/%aE)
 * @param fileChanges - Parsed file change records
 * @param referenceDate - The --until date or current system time
 * @param scope - Optional path-scope filter; only file changes inside this
 *                directory contribute to per-directory bus factors and
 *                single-point risks. Overall bus factor uses commits as-is
 *                because commit-level scoping is already applied upstream by
 *                the git command builders.
 */
export declare function analyzeBusFactor(commits: CommitRecord[], fileChanges: FileChangeRecord[], referenceDate: Date, scope?: string): BusFactorData;
//# sourceMappingURL=bus-factor.d.ts.map