ebemunk/node-uci

export default function goCommand(options) {
  let cmd = 'go'
  const commands = [
    'searchmoves', //[moves]
    'ponder', //bool
    'wtime', //msec
    'btime', //msec
    'winc', //msec
    'binc', //msec
    'movestogo', //>0
    'depth', //>0
    'nodes', //>0
    'mate', //>0
    'movetime', //msec
    'infinite', //bool
  ]

  commands.forEach(command => {
    if (!Object.prototype.hasOwnProperty.call(options, command)) return
    switch (command) {
      //array
      case 'searchmoves':
        if (options[command].length) {
          cmd += ' searchmoves ' + options[command].join(' ')
        }
        break
      //bool
      case 'ponder':
      case 'infinite':
        if (options[command]) {
          cmd += ` ${command}`
        }
        break
      //rest are >= 0
      default:
        if (options[command] >= 0) {
          cmd += ` ${command} ${options[command]}`
        }
    }
  })

  return `${cmd}`
}