import type { StoreLogger } from '../types.js';
import type { MigrationContext, MigrationResult } from './types.js';
export declare abstract class BaseMigration<TOptions, TResult extends MigrationResult> {
    protected logger: StoreLogger;
    protected context?: MigrationContext;
    constructor(logger: StoreLogger);
    execute(options: TOptions): Promise<TResult>;
    protected abstract createContext(options: TOptions, startTime: Date): MigrationContext;
    protected abstract validate(options: TOptions): Promise<{
        valid: boolean;
        errors: string[];
    }>;
    protected abstract preMigration(options: TOptions): Promise<void>;
    protected abstract performMigration(options: TOptions): Promise<TResult>;
    protected abstract postMigration(options: TOptions, result: TResult): Promise<void>;
    protected abstract createErrorResult(errors: string[]): TResult;
    protected processBatch<T>(items: T[], batchSize: number, processor: (batch: T[]) => Promise<void>, progressCallback?: (processed: number, total: number) => void): Promise<void>;
}
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