import { EventEmitter } from 'node:events';
import { type Application } from '@adonisjs/core/app';
import type { Database } from '../../database/main.ts';
import type { OrmSchemaGeneratorConfig, DatabaseColumn } from '../../types/schema_generator.ts';
/**
 * OrmSchemaGenerator orchestrates the process of generating TypeScript
 * model schemas from database tables.
 */
export declare class OrmSchemaGenerator extends EventEmitter<{
    /**
     * Emitted when tables are collected from the database
     */
    'collect:tables': [tables: string[]];
    /**
     * Emitted for each table with its column information
     */
    'table:info': [info: {
        tableName: string;
        columns: Record<string, DatabaseColumn>;
    }];
    /**
     * Emitted when schema generation starts
     */
    'generating:schema': [];
}> {
    private db;
    private application;
    private config;
    /**
     * Schema builder instance
     */
    private builder;
    /**
     * Query client instance
     */
    private connection;
    constructor(db: Database, application: Application<any>, config: OrmSchemaGeneratorConfig);
    /**
     * Load schema rules from the configured paths
     */
    private loadSchemaRules;
    /**
     * Fetch all tables and their columns from the database
     */
    private fetchTablesAndColumns;
    /**
     * Generate schemas and write to output file
     */
    generate(): Promise<void>;
    /**
     * Close database connections
     */
    close(): Promise<void>;
}