/**
 * Agentic QE v3 - Git Analyzer
 * Provides real git history analysis for defect prediction
 *
 * Features:
 * - File change frequency analysis
 * - Developer experience scoring based on git blame
 * - Code age calculation
 * - Bug history from commit messages
 */
/**
 * Git commit information
 */
export interface GitCommit {
    hash: string;
    author: string;
    email: string;
    date: Date;
    message: string;
    filesChanged: string[];
}
/**
 * Git blame information for a file
 */
export interface GitBlameInfo {
    authors: Map<string, number>;
    primaryAuthor: string;
    primaryAuthorPercentage: number;
    totalLines: number;
    mostRecentChange: Date;
    oldestChange: Date;
}
/**
 * File history analysis
 */
export interface FileHistory {
    filePath: string;
    totalCommits: number;
    uniqueAuthors: number;
    firstCommit: Date | null;
    lastCommit: Date | null;
    changeFrequency: number;
    isRecentlyModified: boolean;
    bugFixCommits: number;
}
/**
 * Configuration for GitAnalyzer
 */
export interface GitAnalyzerConfig {
    /** Repository root path (default: process.cwd()) */
    repoRoot?: string;
    /** Maximum commits to analyze per file (default: 100) */
    maxCommits?: number;
    /** Bug keywords to search for in commit messages */
    bugKeywords?: string[];
    /** Enable caching of git results */
    enableCache?: boolean;
    /** Cache TTL in milliseconds (default: 5 minutes) */
    cacheTtl?: number;
}
/**
 * Git Analyzer for defect prediction metrics
 */
export declare class GitAnalyzer {
    private readonly config;
    private readonly cache;
    private isGitRepo;
    constructor(config?: GitAnalyzerConfig);
    /**
     * Check if current directory is a git repository
     */
    isGitRepository(): Promise<boolean>;
    /**
     * Get file change frequency (commits in last 90 days / 3)
     * Returns normalized value 0-1
     */
    getChangeFrequency(filePath: string): Promise<number>;
    /**
     * Get developer experience score for a file based on git blame
     * Returns inverted score: high experience = low risk (0), low experience = high risk (1)
     */
    getDeveloperExperience(filePath: string): Promise<number>;
    /**
     * Get code age - how old is the file
     * Returns risk score: very new (0.7), very old stable (0.3), middle-aged (0.4)
     */
    getCodeAge(filePath: string): Promise<number>;
    /**
     * Get bug history - how many bug fix commits have touched this file
     * Returns normalized score 0-1
     */
    getBugHistory(filePath: string): Promise<number>;
    /**
     * Get comprehensive file history analysis
     */
    getFileHistory(filePath: string): Promise<FileHistory>;
    /**
     * Get files changed since a specific date
     * @param since - Date to check changes from (default: 24 hours ago)
     * @returns Array of changed file paths relative to repo root
     */
    getChangedFiles(since?: Date): Promise<string[]>;
    /**
     * Get files changed in a specific commit
     * @param commitHash - Git commit hash (default: HEAD)
     * @returns Array of changed file paths relative to repo root
     */
    getCommitFiles(commitHash?: string): Promise<string[]>;
    /**
     * Get files with uncommitted changes (staged + unstaged)
     * @returns Array of modified file paths relative to repo root
     */
    getUncommittedFiles(): Promise<string[]>;
    /**
     * Get relative path from repo root
     */
    private getRelativePath;
    /**
     * Get cached value
     */
    private getFromCache;
    /**
     * Set cache value
     */
    private setCache;
    /**
     * Get default file history for non-git repos
     */
    private getDefaultFileHistory;
    /**
     * Clear the cache
     */
    clearCache(): void;
}
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