import { Config } from '../fileStores';
import { FileSystem } from '../fileSystems';
import { Logger } from '../logger';
import { IDatabase, IDatabaseTransaction } from '../storage';
import { Wallet } from '../wallet';
export declare enum Database {
    WALLET = "wallet",
    BLOCKCHAIN = "blockchain"
}
export type MigrationContext = {
    config: Config;
    files: FileSystem;
    wallet: Wallet;
};
export declare abstract class Migration {
    id: number;
    name: string;
    abstract database: Database;
    abstract path: string;
    init(files: FileSystem): Migration;
    abstract prepare(context: MigrationContext): Promise<IDatabase> | IDatabase;
    abstract forward(context: MigrationContext, db: IDatabase, tx: IDatabaseTransaction | undefined, logger: Logger, dryRun: boolean, walletPassphrase: string | undefined): Promise<void>;
    abstract backward(context: MigrationContext, db: IDatabase, tx: IDatabaseTransaction | undefined, logger: Logger, dryRun: boolean, walletPassphrase: string | undefined): Promise<void>;
}
//# sourceMappingURL=migration.d.ts.map