'use strict'

process.title = 'adom'

const { spawn } = require('child_process')
const { assign: merge } = Object
const shell = spawn('bash')
let pendingRequest = m => m
shell.stderr.pipe(process.stderr)
shell.on('close', m => console.log(`BASH CLOSED OK BYE`))
shell.stdout.on('data', buf => pendingRequest(buf.toString()))

const tmux = cmd => {
  const req = new Promise(done => pendingRequest = done)
  shell.stdin.write(`tmux ${cmd}\n`)
  return req
}

const word = m => {
  const [ first, second ] = m.split('_')
  return first + second[0].toUpperCase() + second.slice(1)
}

const fmtVars = a => `'${a.map(m => `#{${m}}`).join(',')}'`

const getVars = (...a) => tmux('display -p ' + fmtVars(a)).then(m => {
  const vars = m.replace(/\n/g, '').split(',')
  return a.reduce((obj, arg, ix) => merge(obj, { [ word(arg) ]: vars[ix] }), {})
})


//setInterval(m => {
  //shell.stdin.write('ls -l\n')
//}, 2000)

const main = async m => {
  console.time('vars')
  const res = await getVars(
    'cursor_x',
    'cursor_y',
    'pane_index',
    'pane_pid',
    'pane_current_command',
    'pane_height',
    'pane_width',
    'pane_top',
    'pane_left',
    'pane_bottom',
    'pane_right'
  )
  console.timeEnd('vars')

  console.time('title')
  const paneTitle = await getVars('pane_title')
  console.timeEnd('title')

  console.log(res)
}

setInterval(m => {
  main().catch(e => console.log(e))
}, 1000)