/**
 * Migration Code Generator
 *
 * Generates TypeScript migration code from SchemaDiff.
 * This enables auto-generating migrations from entity changes.
 */
import type { SchemaDiff } from '../../type/index.js';
export interface MigrationCodeOptions {
    /** Indentation string (default: 2 spaces) */
    indent?: string;
    /** Whether to include comments explaining changes */
    includeComments?: boolean;
}
export interface GeneratedMigration {
    /** The up migration code */
    up: string;
    /** The down migration code */
    down: string;
    /** Human-readable description of changes */
    description: string;
}
/**
 * Generates TypeScript migration code from schema diffs.
 */
export declare class MigrationCodeGenerator {
    private readonly indent;
    private readonly includeComments;
    constructor(options?: MigrationCodeOptions);
    /**
     * Generate migration code from a single SchemaDiff.
     */
    generate(diff: SchemaDiff): GeneratedMigration;
    /**
     * Generate migration code from multiple diffs.
     */
    generateAll(diffs: SchemaDiff[]): GeneratedMigration;
    /**
     * Generate a complete migration file template.
     */
    generateFile(diffs: SchemaDiff[], name?: string): string;
    private generateCreateTable;
    private generateDropTable;
    private generateAlterUp;
    private generateAlterDown;
    private generateAddColumn;
    private generateAlterColumn;
    private generateCreateIndex;
    private generateAddForeignKey;
    private generateColumnCall;
    private generateIndexCall;
    private getColumnMethod;
    private generateColumnOptionsObject;
    private generateColumnOptions;
    private formatValue;
    private generateDescription;
    private indentBlock;
}
/**
 * Factory function to create a MigrationCodeGenerator.
 */
export declare function createMigrationCodeGenerator(options?: MigrationCodeOptions): MigrationCodeGenerator;
//# sourceMappingURL=migrationCodeGenerator.d.ts.map