update status

PrinterDev.js

@@ -1,31 +1,33 @@
-const EventEmitter = require('events')
+const EventEmitter = require('events') // eslint-disable-line
 const escpos = require('escpos')
-const config = require('./config.json')
+// const config = require('./config.json')
 const fs = require('fs')
 const iconv = require('iconv-lite')
 
 class PrinterDevice {
-  constructor() {
+  constructor () {
+    this._serial = ''
+    this._feed = 8
     this._isOpen = false
     this._device = null
     this._printer = null
     this._type = null // type = serial or console
   }
 
-  encodeStr(str){
+  encodeStr (str) {
-    if(!str || typeof str != 'string') return false
+    if (!str || typeof str !== 'string') return false
     return iconv.encode(str, 'big5')
   }
 
-  async connect() {
+  async connect () {
     let chkSerial = await new Promise((resolve, reject) => {
-      fs.access(config.printer.serial, err => {
+      fs.access(this._serial, err => {
         if (err) return resolve(false)
         return resolve(true)
       })
     })
     if (chkSerial) {
-      this._device = new escpos.Serial(config.printer.serial)
+      this._device = new escpos.Serial(this._serial)
       this._type = 'serial'
     } else {
       this._device = new escpos.Console()
@@ -35,8 +37,8 @@ class PrinterDevice {
     this.openSerial()
   }
 
-  async openSerial() {
+  async openSerial () {
-    if (!this._device || this._type != 'serial') return
+    if (!this._device || this._type !== 'serial') return
     this._isOpen = await new Promise((resolve, reject) => {
       this._device.open(err => {
         if (err) return resolve(false)
@@ -45,7 +47,7 @@ class PrinterDevice {
     })
   }
 
-  async printerString(str) {
+  async printerString (str) {
     if (!this._isOpen || !this._printer) return false
 
     this._printer.font('a')
@@ -66,8 +68,8 @@ class PrinterDevice {
           case 's':
             let size = tmp.substring(2)
             let sarr = size.trim().split(',')
-            if (sarr.length != 2) break
+            if (sarr.length !== 2) break
-            if(!isFinite(sarr[0]) || !isFinite(sarr[1])) break
+            if (!isFinite(sarr[0]) || !isFinite(sarr[1])) break
             sarr = sarr.map(t => Math.floor(t))
             this._printer.size(sarr[0], sarr[1])
             break
@@ -77,26 +79,50 @@ class PrinterDevice {
       }
     }
 
-    this._printer.cut(true, config.printer.cutFeed || 4)
+    this._printer.cut(true, this._feed || 4)
 
     return true
   }
 
-  async close() {
+  async printTestPage () {
+    await this.connect()
+    if (!this._isOpen) return false
+    this._printer.align('ct')
+    this._printer.size(1, 1)
+    this._printer.text('Print Test Page')
+    this._printer.align('lt')
+    this._printer.size(1, 1)
+    this._printer.text('Test Page Content')
+    await this.close()
+    return true
+  }
+
+  async close () {
     if (!this._device) return
-    if (this._type == 'serial') {
+    if (this._type === 'serial') {
       let self = this
       await new Promise((resolve, reject) => {
         self._printer.close(() => {
+          self._printer = null
+          self._isOpen = false
           resolve(1)
         })
       })
     }
   }
 
-  get isOpen() {
+  get isOpen () {
-    return this._isOpen ? true : false
+    return !!this._isOpen
+  }
+
+  set serial (str) {
+    this._serial = str
+  }
+
+  set feed (str) {
+    if (!isFinite(str)) return
+    this._feed = Math.floor(parseInt(str))
   }
 }
 
-module.exports = new PrinterDevice()
+module.exports = new PrinterDevice()

app.js

@@ -1,2 +1,2 @@
 require('top-level-await')
-require('./server')
+require('./server')

ble/gdata-characteristic.js

@@ -12,7 +12,7 @@ const notifyDesciptor = new bleno.Descriptor({
 })
 
 class DataCharacteristic extends bleno.Characteristic {
-  constructor() {
+  constructor () {
     super({
       uuid: config.uuid.service.func.data,
       properties: ['write', 'writeWithoutResponse', 'notify'],
@@ -23,15 +23,15 @@ class DataCharacteristic extends bleno.Characteristic {
     this._notifyFunc = null
   }
 
-  onWriteRequest(data, offset, withoutResponse, callback) {
+  onWriteRequest (data, offset, withoutResponse, callback) {
     console.log(`offset :: ${offset} , withoutRes :: ${withoutResponse}`)
     console.log(`get data`, data)
 
-    if (data.length == 1 && data[0] == 0x00) {
+    if (data.length === 1 && data[0] === 0x00) {
       tmp = []
       idx = 0
       failFlag = false
-    } else if (data.length == 1 && data[0] == 0xff) {
+    } else if (data.length === 1 && data[0] === 0xff) {
       console.log(Buffer.from(tmp).toString())
       if (!failFlag) {
         localEvent.emit('print', Buffer.from(tmp).toString())
@@ -53,17 +53,17 @@ class DataCharacteristic extends bleno.Characteristic {
     }
   }
 
-  sendNotidy(str) {
+  sendNotidy (str) {
     if (!this._notifyFunc) return
     this._notifyFunc(Buffer.from(str))
   }
 
-  onSubscribe(maxValueSize, cb) {
+  onSubscribe (maxValueSize, cb) {
     console.log(maxValueSize)
     this._notifyFunc = cb
   }
 
-  onUnsubscribe() {
+  onUnsubscribe () {
     this._notifyFunc = null
   }
 }

ble/index.js

@@ -1,24 +1,21 @@
+const config = require('../config.json')
 const bleno = require('bleno')
 const adapterName = 'BLE_Printer'
 const serverUUID = config.uuid.main
-const localEvent = require('./localEvent')
+const localEvent = require('./localEvent') //eslint-disable-line
-const fs = require('fs')
 const MainService = require('./main-service')
 
 bleno.on('stateChange', state => {
   console.log(`bt device state ${state}`)
-  if (state == 'poweredOn') {
+  if (state === 'poweredOn') {
-
+    bleno.startAdvertising(adapterName, [serverUUID])
-    bleno.startAdvertising(adapterName, [serverUUID], (error) => {
-
-    })
   } else {
     bleno.stopAdvertising()
   }
 })
 
 bleno.on('advertisingStart', function (error) {
-  console.log('on -> advertisingStart: ' + (error ? 'error ' + error : 'success'));
+  console.log('on -> advertisingStart: ' + (error ? 'error ' + error : 'success'))
 
   if (!error) {
     bleno.setServices([new MainService()], error => {

ble/main-service.js

@@ -6,7 +6,7 @@ const GdataCharacteristic = require('./gdata-characteristic')
 const dataCharacteristic = new GdataCharacteristic()
 
 class MainService extends bleno.PrimaryService {
-  constructor() {
+  constructor () {
     super({
       uuid: config.uuid.service.id,
       characteristics: [

ble/time-characteristic.js

@@ -1,24 +0,0 @@
-const bleno = require('bleno')
-const config = require('./config.json')
-
-class TimeCharacteristic extends bleno.Characteristic {
-  constructor() {
-    super({
-      uuid: config.uuid.service.func.time,
-      properties: ['read'],
-      descriptors: [
-        new bleno.Descriptor({
-          uuid: '88ff',
-          value: 'Now Time'
-        })
-      ]
-    })
-  }
-
-  onReadRequest(offset, callback) {
-    console.log(`offset :: ${offset}`)
-    callback(this.RESULT_SUCCESS, new Buffer(`${Date.now()}`))
-  }
-}
-
-module.exports = TimeCharacteristic

localEvent.js

@@ -1,10 +1,10 @@
 const EventEmitter = require('events')
-const util = require('util')
+const util = require('util') //eslint-disable-line
 
 class LocalEvent extends EventEmitter {
-  constructor(){
+  constructor () { // eslint-disable-line
     super()
   }
 }
 
-module.exports = new LocalEvent()
+module.exports = new LocalEvent()

package.json

@@ -3,6 +3,9 @@
   "version": "0.0.1",
   "main": "app.js",
   "license": "MIT",
+  "scripts": {
+    "check":"standard --fix --verbose"
+  },
   "dependencies": {
     "bleno": "^0.4.2",
     "escpos": "^2.4.3",

public/css/main.css

@@ -0,0 +1,5 @@
+html, body{
+  height: 100%;
+  width: 100%;
+  background-color: #eee;
+}

route/install.js

@@ -1,12 +1,100 @@
+/* eslint-disable no-throw-literal */
 const KoaRouter = require('koa-router')
 const router = new KoaRouter()
+const fs = require('fs')
+const path = require('path')
+const Printer = require('../PrinterDev')
+const KoaBody = require('koa-body')
+const uuid = require('uuid')
+
+router.use(async (c, n) => {
+  c.data = {
+    title: 'Printer System Setup'
+  }
+  try {
+    await n()
+  } catch (err) {
+    if (typeof err === 'string') {
+      c.body = err
+    } else {
+      c.body = err.toString()
+    }
+  }
+
+  if (c.async) {
+    c.body = {
+      status: 0,
+      msg: c.body
+    }
+  }
+})
 
 router
   .get('/', async (c, n) => {
     c.redirect('/install')
   })
-  .all('/install', async (c, n) => {
+  .get('/install', async (c, n) => {
-    c.body = 'install'
+    // get ttys
+    let ttys = await new Promise((resolve, reject) => {
+      fs.readdir(path.resolve('/dev'), (err, list) => {
+        if (err) return resolve([])
+        let arr = []
+        for (let it of list) {
+          if (it.startsWith('tty')) {
+            arr.push(path.resolve('/dev', it))
+          }
+        }
+        resolve(arr)
+      })
+    })
+    c.data.ttys = ttys
+    await c.render('install/index', c.data)
+  })
+  .post('/install/printer_test', KoaBody(), async (c, n) => {
+    c.async = true
+    let arr = c.request.body
+    if (!arr.device) throw '請輸入印表機連接埠'
+    let device = arr.device
+    let feed = arr.feed || 8
+    if (!isFinite(feed) || feed < 0) throw '切紙前換行必須是整數'
+    feed = typeof feed !== 'number' ? Math.floor(parseInt(feed)) : feed
+
+    Printer.serial = device
+    Printer.feed = feed
+
+    let status = await Printer.printTestPage()
+
+    if (!status) c.body = '測試失敗'
+    else c.body = '測試成功'
+  })
+  .post('/install/write_config', KoaBody(), async (c, n) => {
+    c.async = true
+    let arr = c.request.body
+    if (!arr.tty) throw '請輸入印表機連接埠'
+    if (!arr.ble || (arr.ble !== 'yes' && arr.ble !== 'no')) throw '請輸入藍牙啟用設定'
+    let feed = arr.feed || 8
+    if (!isFinite(feed) || feed < 0) throw '切紙前換行必須是整數'
+    feed = typeof feed !== 'number' ? Math.floor(parseInt(feed)) : feed
+
+    let json = {
+      ble: {
+        enable: false,
+        uuid: {
+          main: '',
+          service: '',
+          characteristic: ''
+        },
+        printer: {
+          serial: '',
+          feed: 8
+        }
+      }
+    }
+
+    json.ble.enable = arr.ble === 'yes'
+    json.ble.uuid.main = uuid.v4()
+    json.ble.uuid.service = uuid.v4()
+    json.ble.uuid.characteristic = uuid.v4()
   })
 
-module.exports = router
+module.exports = router

server.js

@@ -26,7 +26,7 @@ try {
       resolve(1)
     })
   })
-  await chk
+  await chk //eslint-disable-line
 } catch (err) {
   setupMode = true
 }

views/includes/footer.ejs

@@ -0,0 +1,2 @@
+</body>
+</html>

views/includes/header.ejs

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title><%- title %></title>
+  <link rel="stylesheet" href="/css/semantic.min.css">
+  <link rel="stylesheet" href="/css/main.css">
+  <script src="/js/jquery-3.2.1.min.js"></script>
+  <script src="/js/semantic.min.js"></script>
+</head>
+<body>

views/install/index.ejs

@@ -0,0 +1,38 @@
+<%- include ../includes/header.ejs %>
+
+<div class="ui container" style="padding-top: 20px;">
+  <h1 class="ui header">系統安裝設定</h1>
+  <form id="setup" class="ui form">
+    <h3 class="ui dividing header">印表機設定</h3>
+    <div class="field">
+      <label for="tty">印表機連接埠</label>
+      <select name="tty" id="tty">
+        <option value="">選擇裝置</option>
+        <% for(let i of ttys) { %>
+          <option value="<%= i %>"><%= i %></option>
+        <% } %>
+      </select>
+    </div>
+    <div class="field">
+      <label for="feed">切紙前空行</label>
+      <input type="text" name="feed" value="8" id="feed">
+    </div>
+    <div class="field">
+      <button class="ui button mini" type="button" id="test-printer">測試印表機</button>
+    </div>
+
+    <h3 class="ui dividing header">藍芽列印設定</h3>
+    <div class="field">
+      <div class="ui checkbox">
+        <input type="checkbox" class="hidden" id="en-ble">
+        <label for="en-ble">啟用藍芽</label>
+      </div>
+    </div>
+
+    <div style="margin-top: 40px; text-align: right;">
+      <button class="ui button blue" type="submit">送出設定</button>
+    </div>
+  </form>
+</div>
+
+<%- include ../includes/footer.ejs %>