import { Migration, MigrationContext, MigrationStatus, MigrationRunnerConfig, MigrationOperation } from './types.js';
import { RelatedDatabase } from './type/related/database.js';
/**
 * 根据 up 操作自动生成 down 操作
 * @internal 仅用于测试
 */
export declare function generateReverseOperations(operations: MigrationOperation[]): MigrationOperation[];
/**
 * 迁移运行器
 * 管理数据库迁移的执行、回滚和状态跟踪
 *
 * @example
 * ```ts
 * const runner = new MigrationRunner(db);
 *
 * // 添加迁移
 * runner.add({
 *   name: '001_create_users',
 *   up: async (ctx) => {
 *     await ctx.createTable('users', {
 *       id: { type: 'integer', primary: true, autoIncrement: true },
 *       name: { type: 'text', nullable: false }
 *     });
 *   },
 *   down: async (ctx) => {
 *     await ctx.dropTable('users');
 *   }
 * });
 *
 * // 运行所有待执行的迁移
 * await runner.migrate();
 *
 * // 回滚最后一批迁移
 * await runner.rollback();
 * ```
 */
export declare class MigrationRunner<D = any, S extends Record<string, object> = Record<string, object>> {
    private readonly database;
    private migrations;
    private tableName;
    private currentBatch;
    constructor(database: RelatedDatabase<D, S>, config?: MigrationRunnerConfig);
    /**
     * 添加迁移
     */
    add(migration: Migration): this;
    /**
     * 批量添加迁移
     */
    addAll(migrations: Migration[]): this;
    /**
     * 初始化迁移表
     */
    private ensureMigrationTable;
    /**
     * 获取已执行的迁移
     */
    private getExecutedMigrations;
    /**
     * 获取当前批次号
     */
    private getCurrentBatch;
    /**
     * 记录迁移执行
     */
    private recordMigration;
    /**
     * 获取迁移记录的操作
     */
    private getMigrationOperations;
    /**
     * 删除迁移记录
     */
    private removeMigrationRecord;
    /**
     * 创建迁移上下文
     */
    private createContext;
    /**
     * 获取迁移状态
     */
    status(): Promise<MigrationStatus[]>;
    /**
     * 运行所有待执行的迁移
     */
    migrate(): Promise<string[]>;
    /**
     * 回滚最后一批迁移
     */
    rollback(): Promise<string[]>;
    /**
     * 回滚所有迁移
     */
    reset(): Promise<string[]>;
    /**
     * 重新运行所有迁移（reset + migrate）
     */
    refresh(): Promise<{
        rolledBack: string[];
        migrated: string[];
    }>;
}
/**
 * 创建迁移辅助函数
 *
 * @example
 * // 只需要定义 up，down 会自动生成
 * defineMigration({
 *   name: '001_create_users',
 *   up: async (ctx) => {
 *     await ctx.createTable('users', {
 *       id: { type: 'integer', primary: true, autoIncrement: true },
 *       name: { type: 'text', nullable: false }
 *     });
 *     await ctx.addIndex('users', 'idx_name', ['name']);
 *   }
 *   // down 自动生成: dropIndex + dropTable
 * });
 *
 * // 如果需要自定义 down，可以显式提供
 * defineMigration({
 *   name: '002_custom_migration',
 *   up: async (ctx) => {
 *     await ctx.query('INSERT INTO settings VALUES (?, ?)', ['key', 'value']);
 *   },
 *   down: async (ctx) => {
 *     await ctx.query('DELETE FROM settings WHERE key = ?', ['key']);
 *   }
 * });
 */
export declare function defineMigration(config: {
    name: string;
    version?: string | number;
    up: (context: MigrationContext) => Promise<void>;
    down?: (context: MigrationContext) => Promise<void>;
}): Migration;
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