const express = require('express')
const router = express.Router()
const fs = require('fs-extra')
const gm = require('gm').subClass({ imageMagick: true })
const path = require('path')
const gamepad = require('gamepad')
require('colors')

const gphoto2 = require('../tools/tools-gphoto2')
const booth = require('../tools/tools-photobooth')

const CFG = require('../config')
const CTX = {
  __io: null,
  io: function () {
    return CTX.__io
  },
  inProgress: 0,
  testPath: path.join(CFG.output, 'bobinoscope-test.jpg')
}

booth.init()
setGamepad()

// router.use(function (req, res, next) {
//   console.log(req.url)
//   next()
// })

// ////////////////////////////////////////////////////////////////////////////
// DSLR
router.get('/dslr/takepicture/:boothId/:pictId', function (req, res, next) {
  // return res.json({})
  gphoto2.takeOnePicture(req.params.boothId, req.params.pictId, function (pErr) {
    let error = typeof pErr === 'string' ? pErr : JSON.stringify(pErr)
    if (pErr) console.error(pErr)
    res.json({ error: error, data: null })
  })
})

router.get('/build/:boothId', function (req, res, next) {
  console.log('Building')
  // res.json({ok: 1})
  CTX.inProgress += 1
  CTX.io().emit('boothState')
  booth.buildBooth(req.params.boothId, function (pErr) {
    CTX.io().emit('boothState')
    CTX.inProgress -= 1
    res.json({ error: pErr, data: null, boothId: req.params.boothId })
  })
})

router.use('/build/result/low', express.static(CFG.paths.final_ld))
router.use('/build/result', express.static(CFG.paths.final))

// ////////////////////////////////////////////////////////////////////////////
// PRINTER
router.get('/list/:from', function (req, res, next) {
  booth.getBoothList(req.params.from, function (pErr, pList) {
    res.json({error: pErr, booths: pList, inProgress: CTX.inProgress})
  })
})

router.get('/toprint', function (req, res, next) {
  var todoPath = path.join(CFG.paths.toprint)
  fs.readdir(todoPath, function (pErr, pList) {
    res.json({error: pErr, todos: pList})
  })
})

router.get('/print/:pictId', function (req, res, next) {
  let srcPath = path.join(CFG.paths.final, req.params.pictId)
  let dstPath = path.join(CFG.paths.toprint, req.params.pictId)
  fs.copy(srcPath, dstPath, function (pErr) {
    res.json({error: pErr})
  })
})

// ////////////////////////////////////////////////////////////////////////////
// TEST

router.get('/test/takepicture', function (req, res, next) {
  let tmpPict = path.join(CFG.output, 'bobinoscope-test.tmp.jpg')
  gphoto2.__takeOnePicture(tmpPict, function (pErr) {
    if (pErr) return res.status(500).send(pErr)
    gm(tmpPict)
      .autoOrient()
      .gravity('Center')
      .write(CTX.testPath, function (pErr) {
        if (pErr) console.log('Failed to resize picture', pErr)
        res.json({ok: 1})
      })
  })
})

router.get('/test/takepicture/result', function (req, res, next) {
  res.sendFile(path.join(CFG.output, 'bobinoscope-test.jpg'))
})

router.setSocketIo = function (pIo) {
  CTX.__io = pIo
}

function setGamepad () {
  // Initialize the library
  gamepad.init()
  // List the state of all currently attached devices
  // for (var i = 0, l = gamepad.numDevices(); i < l; i++) {
  //   console.log(i, gamepad.deviceAtIndex(i))
  // }

  if (!gamepad.numDevices()) {
    console.log('[!] No gamepad found'.yellow)
  } else {
    console.log(`[!] ${gamepad.numDevices()} gamepad(s) found`.bgBlue)
    // Create a game loop and poll for events
    setInterval(gamepad.processEvents, 16)
    // Scan for new gamepads as a slower rate
    setInterval(gamepad.detectDevices, 500)
    // Listen for button down events on all gamepads
    gamepad.on('down', function (pId, pNum) {
      console.log(`[!] gamepad action received | ${pId}:${pNum}`.bgBlue)
      CTX.io().emit('boothClick', {
        id: pId,
        num: pNum
      })
    })
  }
}

module.exports = router