export type RequestId = string | number;

export interface JsonLineRequest {
  method: string;
  id: RequestId;
  params: unknown;
}

export interface JsonLineNotification {
  method: string;
  params: unknown;
}

export interface JsonLineResponse {
  id: RequestId;
  result?: unknown;
  error?: unknown;
}

export type JsonLineMessage = JsonLineRequest | JsonLineNotification | JsonLineResponse;

export interface InitializeParams {
  clientInfo: {
    name: string;
    title: string | null;
    version: string;
  };
  capabilities: {
    experimentalApi: boolean;
    optOutNotificationMethods?: string[] | null;
  } | null;
}

export interface PendingServerRequest {
  id: RequestId;
  method: string;
  params: unknown;
  createdAt: string;
  resolvedAt?: string | undefined;
  response?: unknown;
  resolutionError?: string | undefined;
  status: 'pending' | 'resolved' | 'failed';
}

export interface RuntimeOperation {
  operationId: string;
  requestId: RequestId;
  method: string;
  threadId?: string | undefined;
  turnId?: string | undefined;
  startedAt: string;
  completedAt?: string | undefined;
  status: 'running' | 'completed' | 'failed';
  result?: unknown;
  error?: string;
  pendingRequestIds: RequestId[];
}