export type StorageStats = {
    totalFiles: number;
    uncompressedFiles: number;
    compressedFiles: number;
    totalSizeBytes: number;
    uncompressedSizeBytes: number;
    compressedSizeBytes: number;
    savingsBytes: number;
    savingsPercent: number;
    oldestTimestamp: Date | null;
    newestTimestamp: Date | null;
};
export type RetentionStats = {
    deletedFiles: number;
    deletedSizeBytes: number;
    compressedFiles: number;
    compressedSizeBytes: number;
    archivedFilesCompressed: number;
    archivedSizeBytes: number;
    totalFreedBytes: number;
    errors: string[];
};
export type LogFileInfo = {
    path: string;
    size: number;
    compressed: boolean;
    mtime: Date;
    archived: boolean;
};
export declare class LogStorageManager {
    private agentId?;
    constructor(agentId?: string);
    private getSessionsDir;
    private getConfig;
    /**
     * Scan session log files in the agent's sessions directory.
     * Returns array of file info for .jsonl and .jsonl.gz files.
     * Archived files (.bak.*, .reset.*, .deleted.*) are included if they match the patterns.
     */
    scanLogFiles(): Promise<LogFileInfo[]>;
    /**
     * Scan archived session log files.
     * Returns array of file info for archived files (.bak.*, .reset.*, .deleted.*).
     */
    scanArchivedFiles(): Promise<LogFileInfo[]>;
    /**
     * Scan all session log files (regular + archived).
     */
    scanAllFiles(): Promise<LogFileInfo[]>;
    private scanFiles;
    private isSessionLogFile;
    private isArchivedFile;
    /**
     * Get storage statistics for the agent's session logs.
     */
    getStorageStats(): Promise<StorageStats>;
    /**
     * Apply retention policies to session logs.
     * @param options.dryRun If true, only calculate what would be done without making changes.
     * @param options.onlyCompress If true, only compress files older than compressAfterDays (no deletions).
     * @param options.onlyDelete If true, only delete files older than keepLastNDays or exceeding size limit (no compression).
     */
    applyRetention(options?: {
        dryRun?: boolean;
        onlyCompress?: boolean;
        onlyDelete?: boolean;
    }): Promise<RetentionStats>;
    private getFileSize;
}