import { EncryptionMetadata } from '../crypto/crypto.service';
export declare enum BackupType {
    FULL = "full",
    INCREMENTAL = "incremental"
}
export declare enum BackupStatus {
    PENDING = "pending",
    IN_PROGRESS = "in_progress",
    COMPLETED = "completed",
    FAILED = "failed"
}
export interface BackupMetadata {
    id: string;
    type: BackupType;
    status: BackupStatus;
    database: string;
    startTime: Date;
    endTime?: Date;
    duration?: number;
    size?: number;
    compressedSize?: number;
    storageKey: string;
    compression: {
        enabled: boolean;
        algorithm?: string;
    };
    encryption?: EncryptionMetadata;
    pgVersion?: string;
    error?: string;
}
export interface BackupOptions {
    type?: BackupType;
    compress?: boolean;
    encrypt?: boolean;
    schemas?: string[];
    tables?: string[];
}
export interface BackupResult {
    metadata: BackupMetadata;
    storageKey: string;
    downloadUrl?: string;
}