const { spawn } = require('child_process')

const files = ['large.html', 'medium.html', 'small.html']
const etags = ['ON', 'off']

async function main() {
  for (const file of files) {
    for (const etag of etags) {
      await bench(etag, file)
    }
  }
}

function bench(etag, file) {
  return new Promise(resolve => {
    console.log(`benchmarking ${file} ${etag}`)
    const app = spawn('node', ['app.js', etag])
    app.stdout.on('data', data => {
      const msg = data.toString()
      if (msg.includes('start')){
        const wrk = spawn('wrk', ['-t8', '-c100', '-d10', 'http://localhost:9876/' + file])
        wrk.stdout.on('data', (data) => {
          console.log(data.toString())
        })
        wrk.on('close', () => {
          console.log(`----------------------------`)
          app.kill()
          resolve()
        })
      }
    })
  })
}

main()