/**
 * Logcat manager for the daemon process.
 * Manages adb logcat capture to timestamped files.
 */
export interface LogcatStatus {
    capturing: boolean;
    pid: number | null;
    file: string | null;
    size: string | null;
}
export declare class LogcatManager {
    private proc;
    private currentFile;
    private readonly serial;
    private readonly logDir;
    private readonly logfileLink;
    constructor(serial: string);
    /** Whether logcat is currently capturing */
    get isCapturing(): boolean;
    /** Start logcat capture. Stops any previous capture first. */
    start(filter?: string): Promise<{
        file: string;
        pid: number;
    }>;
    /** Stop logcat capture */
    stop(): void;
    /** Get capture status */
    status(): LogcatStatus;
    /** Read tail of current logcat file (reads only the last chunk, not the entire file) */
    readTail(lineCount?: number): string[];
    /** Scan tail for crash patterns, optionally scoped to a package name */
    scanForCrash(lineCount?: number, packageName?: string): {
        crashed: boolean;
        lines: string[];
        reason?: string;
        matchedLine?: string;
        matchedPattern?: string;
    };
    /** Cleanup: stop capture */
    cleanup(): void;
    private getFileStats;
}
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