import type { GatewayRequest, OutboundMessage } from '../protocol.js';
import { makeResponse } from '../protocol.js';

export interface SystemHandlerDeps {
  startTime: number;
  version: string;
  getSessionCount: () => number;
  getToolCount: () => number;
  getConnectionCount: () => number;
}

export function createSystemHandlers(deps: SystemHandlerDeps) {
  return {
    'system.health': async (request: GatewayRequest): Promise<OutboundMessage> => {
      return makeResponse(request.id, {
        status: 'ok',
        uptime: Math.floor((Date.now() - deps.startTime) / 1000),
        version: deps.version,
        sessions: deps.getSessionCount(),
        tools: deps.getToolCount(),
        connections: deps.getConnectionCount(),
      });
    },
  };
}