/**
 * Orchestrator Events — typed event definitions using EventEmitter pattern.
 * (arc42 §5, spec §FR-01/FR-02)
 */
import { EventEmitter } from 'node:events';
import type { GateVerdict, StageId } from '../types/index.js';
export interface PipelineStartedEvent {
    runId: string;
    initialStage: StageId;
    timestamp: string;
}
export interface StageEnteredEvent {
    runId: string;
    stage: StageId;
    timestamp: string;
}
export interface GateEvaluatedEvent {
    runId: string;
    stage: StageId;
    verdict: GateVerdict;
    timestamp: string;
}
export interface StageAdvancedEvent {
    runId: string;
    fromStage: StageId;
    toStage: StageId;
    timestamp: string;
}
export interface PipelineCompletedEvent {
    runId: string;
    finalStage: StageId;
    timestamp: string;
}
export interface PipelineFailedEvent {
    runId: string;
    stage: StageId;
    reason: string;
    timestamp: string;
}
export interface ClarificationOpenedEvent {
    runId: string;
    stage: StageId;
    clarificationId: string;
    blocking: boolean;
    timestamp: string;
}
export interface ClarificationSettledEvent {
    runId: string;
    stage: StageId;
    clarificationId: string;
    resumed: boolean;
    timestamp: string;
}
export interface OrchestratorEventMap {
    'pipeline:started': PipelineStartedEvent;
    'pipeline:completed': PipelineCompletedEvent;
    'pipeline:failed': PipelineFailedEvent;
    'stage:entered': StageEnteredEvent;
    'stage:advanced': StageAdvancedEvent;
    'gate:evaluated': GateEvaluatedEvent;
    'clarification:opened': ClarificationOpenedEvent;
    'clarification:settled': ClarificationSettledEvent;
}
export declare class OrchestratorEmitter extends EventEmitter {
    emit<K extends keyof OrchestratorEventMap>(event: K, payload: OrchestratorEventMap[K]): boolean;
    on<K extends keyof OrchestratorEventMap>(event: K, listener: (payload: OrchestratorEventMap[K]) => void): this;
    once<K extends keyof OrchestratorEventMap>(event: K, listener: (payload: OrchestratorEventMap[K]) => void): this;
}
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