import type { WorkflowArtifactRef, WorkflowResultEnvelope } from './result.js';
import type { WorkflowAgentInvocationSnapshot, WorkflowRun, WorkflowRunError } from './run.js';
export type WorkflowEventType = 'run_queued' | 'run_started' | 'phase_started' | 'phase_completed' | 'node_started' | 'node_completed' | 'agent_queued' | 'agent_started' | 'agent_step_started' | 'agent_step_completed' | 'agent_completed' | 'log_appended' | 'artifact_created' | 'run_completed' | 'run_failed' | 'run_cancelled';
export interface WorkflowEventEnvelope<T = WorkflowEventPayload> {
    id: string;
    runId: string;
    sequence: number;
    type: WorkflowEventType;
    payload: T;
    createdAtMs: number;
}
export type WorkflowEventPayload = RunQueuedPayload | RunStartedPayload | PhaseStartedPayload | PhaseCompletedPayload | NodeStartedPayload | NodeCompletedPayload | AgentQueuedPayload | AgentStartedPayload | AgentStepStartedPayload | AgentStepCompletedPayload | AgentCompletedPayload | LogAppendedPayload | ArtifactCreatedPayload | RunCompletedPayload | RunFailedPayload | RunCancelledPayload;
export interface RunQueuedPayload {
    run: WorkflowRun;
}
export interface RunStartedPayload {
    startedAtMs: number;
}
export interface PhaseStartedPayload {
    phaseId: string;
    title: string;
}
export interface PhaseCompletedPayload {
    phaseId: string;
}
export interface NodeStartedPayload {
    nodeId: string;
    kind: string;
    title: string;
}
export interface NodeCompletedPayload {
    nodeId: string;
    kind: string;
    title: string;
    status: 'done' | 'error' | 'skipped';
    resultPreview?: string;
    error?: string;
}
export interface AgentQueuedPayload {
    agentId: string;
    nodeId: string;
    label: string;
    phaseId?: string;
    prompt?: string;
    sessionKey: string;
    invocation?: WorkflowAgentInvocationSnapshot;
}
export interface AgentStartedPayload {
    agentId: string;
    nodeId?: string;
}
export interface AgentStepStartedPayload {
    agentId: string;
    stepId: string;
    label: string;
    kind: 'tool' | 'llm' | 'thinking';
    toolName?: string;
    detail?: string;
}
export interface AgentStepCompletedPayload {
    agentId: string;
    stepId: string;
    status: 'done' | 'error';
    resultPreview?: string;
    error?: string;
}
export interface AgentCompletedPayload {
    agentId: string;
    nodeId?: string;
    status: 'done' | 'error' | 'skipped';
    resultPreview?: string;
    error?: string;
}
export interface LogAppendedPayload {
    message: string;
}
export interface ArtifactCreatedPayload {
    artifact: WorkflowArtifactRef;
}
export interface RunCompletedPayload {
    result: WorkflowResultEnvelope;
}
export interface RunFailedPayload {
    error: WorkflowRunError;
}
export interface RunCancelledPayload {
    reason?: string;
}