import { BackupMetadata, InstallationState } from './types';
export declare class BackupManager {
    private stateFile;
    private backupDir;
    constructor();
    private ensureBackupDir;
    createBackup(filePath: string, component: string, operation: 'install' | 'uninstall'): Promise<BackupMetadata | null>;
    restoreBackup(metadata: BackupMetadata): Promise<void>;
    removeBackup(metadata: BackupMetadata): Promise<void>;
    getInstallationState(): Promise<InstallationState>;
    saveInstallationState(state: InstallationState): Promise<void>;
    private saveBackupMetadata;
    private removeBackupMetadata;
    getBackupsForComponent(component: string): Promise<BackupMetadata[]>;
    cleanupOldBackups(maxAge?: number): Promise<void>;
}
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