'use strict';

// Tiny CLI client:
//   node client.js get /hello?name=Imran
//   node client.js post /hello Imran
//   node client.js get /health

const coap = require('coap');

const [, , methodArg = 'get', pathArg = '/hello', payload] = process.argv;

const req = coap.request({
  host: process.env.COAP_HOST || 'localhost',
  port: Number(process.env.COAP_PORT) || 5683,
  pathname: pathArg.split('?')[0],
  query: pathArg.split('?')[1] || '',
  method: methodArg.toUpperCase(),
  confirmable: true,
});

req.on('response', (res) => {
  console.log(`<- ${res.code} ${res.payload.toString()}`);
  process.exit(0);
});

req.on('error', (err) => {
  console.error('request failed:', err.message);
  process.exit(1);
});

if (payload) req.write(payload);
req.end();