remote.js

/**
 * smart-mirror remote by Evan Cohen
 */
const stream = require('stream')
let remote = new stream.Writable()
remote.start = function () {
  const express = require('express')
  const app = express()
  const fs = require('fs')
  const getConfigSchema = require('./config.schema.js')

  let config = ""
  let configDefault = ""
  let configJSON = ""
  let configPath = __dirname + "/config.json"
  let configDefaultPath = __dirname + "/config.default.json"
 
  function getFiles() {
    configDefault = JSON.parse(fs.readFileSync(configDefaultPath, "utf8"))

    if (fs.existsSync(configPath)) {
      try {
        config = JSON.parse(fs.readFileSync(configPath, "utf8")) //json'd config file
      } catch (e) {
        config = configDefault
      }
    } else {
      config = configDefault
    }
    configDefault = JSON.parse(fs.readFileSync(configDefaultPath, "utf8"))
    //TODO this is async, all of the remote should be async too
    getConfigSchema(function (configSchema) {
      //configSchema.form.push({"type":"button","title":"Submit","order":10000})
      configSchema.form.sort(function (a, b) { return a.order - b.order })
      configJSON = configSchema
    })
  }
  getFiles()

  const server = require('http').createServer(app)

  // Start the server
  server.listen(config.remote.port)
  // Use the remote directory and initilize socket connection
  app.use(express.static(__dirname + '/remote'))
  remote.io = require('socket.io')(server)

  /**
   * When the connection begins
   */
  remote.io.on('connection', function (socket) {
    socket.emit('connected')

    // When the mirror recieves a remote command
    socket.on('command', function (command) {
      remote.emit('command', command)
    })

    socket.on('devtools', function (open) {
      remote.emit('devtools', open)
    })

    socket.on('kiosk', function () {
      remote.emit('kiosk')
    })

    socket.on('reload', function () {
      remote.emit('reload')
    })

    socket.on('clickWakeUp', function () {
      remote.emit('wakeUp')
    })
    socket.on('clickSleep', function () {
      remote.emit('sleep')
    })

    socket.on('saveConfig', function (data) { // used to save the form JSON
      fs.writeFile(configPath, JSON.stringify(data, null, 2), "utf8", function (err) {
        if (err) {
          console.error(err)
        } else {
          remote.emit('relaunch')
        }
      })
    })

    socket.on('getForm', function () {
      getFiles()
      socket.emit("json", { "configJSON": configJSON, "configDefault": configDefault, "config": config })
    })

  }) // end - connection

  /**
   * When a remote disconnects
   */
  remote.io.on('disconnect', function () {
    remote.emit('disconnected')
  })// end - disconnect
} // end - start

module.exports = remote