/**
 * WorkflowBuilder - Fluent API for building workflow schemas
 *
 * Provides a chainable interface for constructing workflow definitions
 * that compile to IProductWorkflow JSON schema.
 *
 * @example
 * ```ts
 * import { WorkflowBuilder } from '@ductape/sdk';
 *
 * const workflow = new WorkflowBuilder('order-fulfillment')
 *   .name('Order Fulfillment')
 *   .description('Process orders end-to-end')
 *   .input({ order_id: { type: 'string', required: true } })
 *   .options({ timeout: 86400000, rollback_strategy: 'reverse_all' })
 *   .step('validate-order')
 *     .action('inventory-service', 'validate-order')
 *     .input({ body: { order_id: '$Input{order_id}' } })
 *     .done()
 *   .step('reserve-inventory')
 *     .database('inventory-db', 'reserve-items')
 *     .dependsOn(['validate-order'])
 *     .critical()
 *     .rollback()
 *       .database('inventory-db', 'release-items')
 *       .input({ data: { id: '$Step{reserve-inventory}{id}' } })
 *       .done()
 *     .done()
 *   .build();
 * ```
 */
import { IProductWorkflow, IProductWorkflowStep, IWorkflowOptions } from '../types';
import { IWorkflowBuilder, IStepBuilder } from './types';
/**
 * Main workflow builder class
 */
export declare class WorkflowBuilder implements IWorkflowBuilder {
    private workflowConfig;
    private stepsArray;
    private signalsMap;
    private queriesMap;
    private envsArray;
    /**
     * Create a new WorkflowBuilder
     * @param tag - Unique workflow tag
     */
    constructor(tag: string);
    name(name: string): IWorkflowBuilder;
    description(description: string): IWorkflowBuilder;
    input(input: Record<string, unknown>): IWorkflowBuilder;
    output(output: Record<string, unknown>): IWorkflowBuilder;
    options(options: IWorkflowOptions): IWorkflowBuilder;
    env(slug: string, active?: boolean): IWorkflowBuilder;
    signal(name: string, input?: Record<string, string>): IWorkflowBuilder;
    query(name: string, handler?: string): IWorkflowBuilder;
    step(tag: string): IStepBuilder;
    /**
     * Add a step to the workflow (called by StepBuilder.done())
     * @internal
     */
    addStep(step: IProductWorkflowStep): void;
    build(): IProductWorkflow;
    toSchema(): IProductWorkflow;
}
/**
 * Factory function to create a new WorkflowBuilder
 * @param tag - Unique workflow tag
 */
export declare function createWorkflow(tag: string): WorkflowBuilder;
export default WorkflowBuilder;