photovoltaic-pc/preload.js

/*
 * @Author: 李皓 hao_li_work@163.com
 * @Date: 2026-07-28 16:31:45
 * @LastEditors: 李皓 hao_li_work@163.com
 * @LastEditTime: 2026-07-28 16:44:07
 * @FilePath: \pc\preload.js
 * @Description:
 * @Version: 1.0.0
 */
const { contextBridge, ipcRenderer } = require('electron')
const nodeNet = require('net')
const dns = require('dns')
const { execFile } = require('child_process')

function tryConnect(host, port, timeout) {
  return new Promise((resolve) => {
    const socket = new nodeNet.Socket()
    socket.setTimeout(timeout)
    socket.on('connect', () => { socket.destroy(); resolve(true) })
    socket.on('error', () => { socket.destroy(); resolve(false) })
    socket.on('timeout', () => { socket.destroy(); resolve(false) })
    socket.connect(port, host)
  })
}

function normalizePingHost(input) {
  const raw = String(input || '').trim()
  if (!raw) return ''
  try {
    return new URL(raw).hostname
  } catch {}
  return raw.replace(/^https?:\/\//i, '').split('/')[0].split(':')[0]
}

function trySystemPing(host, timeout) {
  return new Promise((resolve) => {
    const wait = Math.max(1000, Number(timeout) || 2000)
    execFile('ping', ['-n', '1', '-w', String(wait), host], { windowsHide: true }, (err) => {
      resolve(!err)
    })
  })
}

const net = {
  async ping(host, timeout) {
    const target = normalizePingHost(host)
    if (!target) return false
    const wait = Math.max(1000, Number(timeout) || 2000)
    const hosts = [...new Set([target, 'www.qq.com', 'www.microsoft.com'])]

    for (const currentHost of hosts) {
      const isIp = nodeNet.isIP(currentHost) !== 0
      try {
        if (!isIp) await dns.promises.lookup(currentHost)
      } catch {
        if (!await trySystemPing(currentHost, wait)) continue
      }
      for (const port of [443, 80, 53]) {
        if (await tryConnect(currentHost, port, wait)) {
          ipcRenderer.send('app-network-status', true)
          return true
        }
      }
      if (await trySystemPing(currentHost, wait)) {
        ipcRenderer.send('app-network-status', true)
        return true
      }
    }
    const online = !!globalThis.navigator?.onLine
    ipcRenderer.send('app-network-status', online)
    return online
  }
}

function currentRouteText() {
  return window.location.hash || window.location.pathname || '#/'
}

function reportRoute() {
  ipcRenderer.send('app-route-changed', currentRouteText())
}

function installRouteReporter() {
  reportRoute()
  window.addEventListener('hashchange', reportRoute)
  window.addEventListener('popstate', reportRoute)
  const timer = setInterval(reportRoute, 1000)
  window.addEventListener('beforeunload', () => clearInterval(timer))
}

installRouteReporter()

function injectShellDrawer() {
  if (document.getElementById('__electron_shell_drawer__')) return
  const style = document.createElement('style')
  style.id = '__electron_shell_drawer_style__'
  style.textContent = `
    #__electron_shell_drawer__{position:fixed;left:0;top:0;bottom:0;z-index:2147483647;pointer-events:none;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
    #__electron_shell_drawer__ *{box-sizing:border-box}
    #__electron_shell_handle__{position:absolute;left:0;top:50%;transform:translateY(-50%);width:18px;height:120px;border-radius:0 12px 12px 0;background:#2f8cff;color:#fff;display:flex;align-items:center;justify-content:center;pointer-events:auto;cursor:pointer;box-shadow:0 2px 10px rgba(0,0,0,.16)}
    #__electron_shell_panel__{position:absolute;left:0;top:56px;bottom:56px;width:320px;max-width:88vw;background:rgba(255,255,255,.98);border-right:1px solid rgba(0,0,0,.08);box-shadow:6px 0 24px rgba(0,0,0,.12);transform:translateX(-100%);transition:transform .18s ease;pointer-events:auto;overflow:auto;padding:12px}
    #__electron_shell_drawer__.open #__electron_shell_panel__{transform:translateX(0)}
    #__electron_shell_header__{font-size:13px;font-weight:600;margin:0 0 10px}
    #__electron_shell_row__{display:flex;gap:8px;align-items:center;margin:8px 0}
    #__electron_shell_url__{width:100%;padding:8px 10px;border:1px solid #cfd7e3;border-radius:6px;font-size:13px;outline:none}
    .__electron_shell_btn__{border:1px solid #c7d7ef;background:#fff;color:#1f3f6d;border-radius:6px;padding:7px 10px;font-size:12px;cursor:pointer}
    .__electron_shell_btn_primary__{background:#2f8cff;border-color:#2f8cff;color:#fff}
    #__electron_shell_status__{font-size:12px;line-height:1.5;color:#445}
    #__electron_shell_routes__{margin-top:8px;font-size:12px;word-break:break-all;color:#234}
  `
  document.head.appendChild(style)
  const wrap = document.createElement('div')
  wrap.id = '__electron_shell_drawer__'
  wrap.innerHTML = `
    <div id="__electron_shell_handle__">›</div>
    <div id="__electron_shell_panel__">
      <div id="__electron_shell_header__">壳层入口</div>
      <div id="__electron_shell_status__"></div>
      <div id="__electron_shell_row__">
        <input id="__electron_shell_url__" type="text" placeholder="输入 http(s):// 地址" />
      </div>
      <div id="__electron_shell_row__">
        <button class="__electron_shell_btn__ __electron_shell_btn_primary__" id="__electron_shell_open__">打开网址</button>
        <button class="__electron_shell_btn__" id="__electron_shell_local__">本地包</button>
      </div>
      <div id="__electron_shell_row__">
        <button class="__electron_shell_btn__" id="__electron_shell_copy__">复制当前页</button>
      </div>
      <div id="__electron_shell_routes__"></div>
    </div>
  `
  document.body.appendChild(wrap)
  const handle = wrap.querySelector('#__electron_shell_handle__')
  const panel = wrap.querySelector('#__electron_shell_panel__')
  const input = wrap.querySelector('#__electron_shell_url__')
  const status = wrap.querySelector('#__electron_shell_status__')
  const routes = wrap.querySelector('#__electron_shell_routes__')
  const openBtn = wrap.querySelector('#__electron_shell_open__')
  const localBtn = wrap.querySelector('#__electron_shell_local__')
  const copyBtn = wrap.querySelector('#__electron_shell_copy__')

  const syncState = async () => {
    const url = await app.shellGetTargetUrl().catch(() => '')
    input.value = url || ''
    status.textContent = [
      `网络：${globalThis.navigator?.onLine ? '在线' : '离线'}`,
      `倾角：${JSON.stringify(sensor.sensorList ? JSON.parse(sensor.sensorList()).data?.some?.(el => String(el?.name || '').includes('HWT6053')) : false)}`,
    ].join(' | ')
    routes.textContent = `当前：${window.location.hash || window.location.pathname || '#/'}`
  }

  handle.addEventListener('click', () => wrap.classList.toggle('open'))
  openBtn.addEventListener('click', async () => {
    const url = input.value.trim()
    await app.shellSetTargetUrl(url)
    location.reload()
  })
  localBtn.addEventListener('click', async () => {
    await app.shellSetTargetUrl('')
    location.reload()
  })
  copyBtn.addEventListener('click', async () => {
    await navigator.clipboard?.writeText(window.location.href).catch(() => {})
  })
  setInterval(syncState, 1500)
  syncState()
}

const shellOpenObserver = new MutationObserver(() => {
  if (document.body && !document.getElementById('__electron_shell_drawer__')) injectShellDrawer()
})
shellOpenObserver.observe(document.documentElement || document, { childList: true, subtree: true })

const appCallbacks = {
  onFileWrite: null,
  onFileRead: null,
  onFileDelete: null,
  onPageModeChanged: null,
  onShellOpenUrlDialog: null
}

ipcRenderer.on('app-file-write-callback', (_event, token, filePath, success, err) => {
  if (typeof appCallbacks.onFileWrite === 'function') appCallbacks.onFileWrite(token, filePath, success, err)
})
ipcRenderer.on('app-file-read-callback', (_event, token, filePath, content) => {
  if (typeof appCallbacks.onFileRead === 'function') appCallbacks.onFileRead(token, filePath, content)
})
ipcRenderer.on('app-file-delete-callback', (_event, token, filePath, success) => {
  if (typeof appCallbacks.onFileDelete === 'function') appCallbacks.onFileDelete(token, filePath, success)
})
ipcRenderer.on('app-page-mode', (_event, mode) => {
  if (typeof appCallbacks.onPageModeChanged === 'function') appCallbacks.onPageModeChanged(mode)
})
ipcRenderer.on('app-shell-open-url-dialog', () => {
  if (typeof appCallbacks.onShellOpenUrlDialog === 'function') appCallbacks.onShellOpenUrlDialog()
})

function getRouteQueryValue(name) {
  try {
    const hash = window.location.hash || ''
    const queryText = hash.includes('?') ? hash.slice(hash.indexOf('?') + 1) : window.location.search.slice(1)
    return new URLSearchParams(queryText).get(name)
  } catch {
    return null
  }
}

function tryParseJson(value) {
  try {
    return value ? JSON.parse(value) : null
  } catch {
    return null
  }
}

function restoreZcDataFromList() {
  const id = getRouteQueryValue('id')
  if (!id) return null
  const list = tryParseJson(localStorage.getItem('List')) || []
  const current = list.find(item => String(item?.idString) === String(id))
  if (!current) return null
  const restored = current.zcName
    ? list.filter(item => item?.zcName === current.zcName)
    : [current]
  if (!restored.length) return null
  const value = JSON.stringify(restored)
  try {
    localStorage.setItem('zcData', value)
    ipcRenderer.sendSync('set-cache-sync', 'zcData', value)
  } catch {}
  return value
}

function isZcDataUsable(value) {
  const id = getRouteQueryValue('id')
  if (!id) return true
  const data = tryParseJson(value)
  return Array.isArray(data) && data.some(item => String(item?.idString) === String(id))
}

const app = {
  clearCache() { return ipcRenderer.sendSync('app-clear-cache-sync') },
  versionCode() { return ipcRenderer.sendSync('app-version-code-sync') },
  shellGetTargetUrl() { return ipcRenderer.invoke('app-shell-get-target-url') },
  shellSetTargetUrl(targetUrl) { return ipcRenderer.invoke('app-shell-set-target-url', targetUrl) },
  setCache(key, value) {
    try {
      if (key != null) localStorage.setItem(String(key), String(value ?? ''))
    } catch {}
    return ipcRenderer.sendSync('set-cache-sync', key, value)
  },
  getCache(key) {
    const value = ipcRenderer.sendSync('get-cache-sync', key)
    if (value != null) {
      if (key !== 'zcData' || isZcDataUsable(value)) return value
      const restored = restoreZcDataFromList()
      if (restored != null) return restored
      return value
    }
    try {
      const localValue = localStorage.getItem(String(key))
      if (localValue != null) {
        if (key !== 'zcData' || isZcDataUsable(localValue)) return localValue
        const restored = restoreZcDataFromList()
        if (restored != null) return restored
        return localValue
      }
    } catch {}
    if (key === 'zcData') return restoreZcDataFromList()
    return null
  },
  offlinePage() { ipcRenderer.send('app-offline-page') },
  onlinePage() { ipcRenderer.send('app-online-page') },
  exportFile(filename, content, token) { ipcRenderer.send('app-export-file', filename, content, token) },
  fileList(dir) { return ipcRenderer.sendSync('app-file-list-sync', dir) },
  fileWriteString(filePath, content, token) { ipcRenderer.send('app-file-write-string', filePath, content, token) },
  fileReadString(filePath, token) { ipcRenderer.send('app-file-read-string', filePath, token) },
  fileDelete(filePath, token) { ipcRenderer.send('app-file-delete', filePath, token) },
  get onFileWrite() { return appCallbacks.onFileWrite },
  set onFileWrite(fn) { appCallbacks.onFileWrite = fn },
  get onFileRead() { return appCallbacks.onFileRead },
  set onFileRead(fn) { appCallbacks.onFileRead = fn },
  get onFileDelete() { return appCallbacks.onFileDelete },
  set onFileDelete(fn) { appCallbacks.onFileDelete = fn },
  get onPageModeChanged() { return appCallbacks.onPageModeChanged },
  set onPageModeChanged(fn) { appCallbacks.onPageModeChanged = fn },
  get onShellOpenUrlDialog() { return appCallbacks.onShellOpenUrlDialog },
  set onShellOpenUrlDialog(fn) { appCallbacks.onShellOpenUrlDialog = fn }
}

const sensorCallbacks = {
  onSensorAttached: null,
  onSensorDetached: null,
  onOperationCallback: null
}

ipcRenderer.on('sensor-attached', (_event, data) => {
  if (typeof sensorCallbacks.onSensorAttached === 'function') sensorCallbacks.onSensorAttached(data.id, data.name)
})
ipcRenderer.on('sensor-detached', (_event, data) => {
  if (typeof sensorCallbacks.onSensorDetached === 'function') sensorCallbacks.onSensorDetached(data.id, data.name)
})
ipcRenderer.on('sensor-operation-callback', (_event, id, opId, result) => {
  if (typeof sensorCallbacks.onOperationCallback === 'function') sensorCallbacks.onOperationCallback(id, opId, result)
})

const sensor = {
  initAll() { return ipcRenderer.sendSync('sensor-init-all-sync') },
  flush() { return ipcRenderer.sendSync('sensor-flush-sync') },
  sensorList() {
    const data = ipcRenderer.sendSync('sensor-list-sync')
    return JSON.stringify({ code: 0, data: Array.isArray(data) ? data : [] })
  },
  init(id) { return ipcRenderer.sendSync('sensor-init-sync', id) },
  open(id) { return ipcRenderer.sendSync('sensor-open-sync', id) },
  close(id) { return ipcRenderer.sendSync('sensor-close-sync', id) },
  operation(id, opId, args) { return ipcRenderer.sendSync('sensor-operation-sync', id, opId, args) },
  operationAsync(id, opId, args) { ipcRenderer.send('sensor-operation-async', id, opId, args) },
  get onSensorAttached() { return sensorCallbacks.onSensorAttached },
  set onSensorAttached(fn) { sensorCallbacks.onSensorAttached = fn },
  get onSensorDetached() { return sensorCallbacks.onSensorDetached },
  set onSensorDetached(fn) { sensorCallbacks.onSensorDetached = fn },
  get onOperationCallback() { return sensorCallbacks.onOperationCallback },
  set onOperationCallback(fn) { sensorCallbacks.onOperationCallback = fn }
}

const appSensorDataArr = []
const nativeAppSensor = {
  version: '1.0.0',
  name: 'appSensor',
  open() { return ipcRenderer.sendSync('app-sensor-open-sync') },
  close() { return ipcRenderer.sendSync('app-sensor-close-sync') },
  isOpen() { return ipcRenderer.sendSync('app-sensor-is-open-sync') }
}

ipcRenderer.on('sensor-data', (_event, data) => {
  if (data && data.sensor && data.method) {
    const index = appSensorDataArr.findIndex(item => item.sensor === data.sensor && item.method === data.method)
    if (index >= 0) {
      appSensorDataArr.splice(index, 1, data)
    } else {
      appSensorDataArr.push(data)
    }
  }
  window.postMessage({ __electronSensorData: data }, '*')
})

function injectAppSensorBridge() {
  const source = `
;(() => {
  const dataArr = []
  const callbacks = { onValueCallback: null }

  function upsertSensorData(data) {
    const targetArr = window.appSensor && Array.isArray(window.appSensor.dataArr)
      ? window.appSensor.dataArr
      : dataArr
    if (data && data.sensor && data.method) {
      const index = targetArr.findIndex(item => item.sensor === data.sensor && item.method === data.method)
      if (index >= 0) targetArr.splice(index, 1, data)
      else targetArr.push(data)
    }
    if (typeof callbacks.onValueCallback === 'function') callbacks.onValueCallback(data)
  }

  Object.defineProperty(window, 'appSensor', {
    configurable: true,
    enumerable: true,
    value: {
      version: '1.0.0',
      name: 'appSensor',
      dataArr,
      open() { return window.__electronNativeAppSensor.open() },
      close() { return window.__electronNativeAppSensor.close() },
      isOpen() { return window.__electronNativeAppSensor.isOpen() },
      get onValueCallback() { return callbacks.onValueCallback },
      set onValueCallback(fn) { callbacks.onValueCallback = fn }
    }
  })

  window.addEventListener('message', event => {
    const payload = event.data
    if (!payload || !payload.__electronSensorData) return
    upsertSensorData(payload.__electronSensorData)
  })
})()
`
  const script = document.createElement('script')
  script.textContent = source
  ;(document.documentElement || document.head).appendChild(script)
  script.remove()
}

function injectAppSensorBridgeWhenReady() {
  if (document.documentElement || document.head) {
    injectAppSensorBridge()
    return
  }
  const timer = setInterval(() => {
    if (!(document.documentElement || document.head)) return
    clearInterval(timer)
    injectAppSensorBridge()
  }, 0)
}

injectAppSensorBridgeWhenReady()

const appLocationCallbacks = {
  onOpened: null,
  onLocationChanged: null
}

ipcRenderer.on('app-location-opened', (_event, status) => {
  if (typeof appLocationCallbacks.onOpened === 'function') appLocationCallbacks.onOpened(status)
})
ipcRenderer.on('app-location-changed', (_event, location) => {
  if (typeof appLocationCallbacks.onLocationChanged === 'function') appLocationCallbacks.onLocationChanged(location)
})

const appLocation = {
  isSupport() { return ipcRenderer.sendSync('app-location-is-support-sync') },
  isOpen() { return ipcRenderer.sendSync('app-location-is-open-sync') },
  open() { ipcRenderer.send('app-location-open') },
  close() { ipcRenderer.send('app-location-close') },
  get onOpened() { return appLocationCallbacks.onOpened },
  set onOpened(fn) { appLocationCallbacks.onOpened = fn },
  get onLocationChanged() { return appLocationCallbacks.onLocationChanged },
  set onLocationChanged(fn) { appLocationCallbacks.onLocationChanged = fn }
}

const usbSerialCallbacks = {
  onDeviceAttached: null,
  onDeviceDetached: null,
  onDeviceDiscovered: null,
  onDeviceProbeResult: null,
  onDeviceOpened: null,
  onDeviceState: null,
  onDeviceData: null
}

for (const [eventName, cbName] of [
  ['usb-callback-device-attached', 'onDeviceAttached'],
  ['usb-callback-device-detached', 'onDeviceDetached'],
  ['usb-callback-device-discovered', 'onDeviceDiscovered'],
  ['usb-callback-device-probe-result', 'onDeviceProbeResult'],
  ['usb-callback-device-opened', 'onDeviceOpened'],
  ['usb-callback-device-state', 'onDeviceState'],
  ['usb-callback-device-data', 'onDeviceData']
]) {
  ipcRenderer.on(eventName, (_event, jsonStr) => {
    let parsed = jsonStr
    try {
      if (typeof jsonStr === 'string') parsed = JSON.parse(jsonStr)
    } catch {}
    console.log(`[Electron USB] ${cbName}`, parsed)
    const cb = usbSerialCallbacks[cbName]
    if (typeof cb === 'function') cb(jsonStr)
    window.postMessage({
      __electronUsbSerialEvent: true,
      callbackName: cbName,
      value: jsonStr
    }, '*')
  })
}

const usbSerial = {
  get onDeviceAttached() { return usbSerialCallbacks.onDeviceAttached },
  set onDeviceAttached(fn) { usbSerialCallbacks.onDeviceAttached = fn },
  get onDeviceDetached() { return usbSerialCallbacks.onDeviceDetached },
  set onDeviceDetached(fn) { usbSerialCallbacks.onDeviceDetached = fn },
  get onDeviceDiscovered() { return usbSerialCallbacks.onDeviceDiscovered },
  set onDeviceDiscovered(fn) { usbSerialCallbacks.onDeviceDiscovered = fn },
  get onDeviceProbeResult() { return usbSerialCallbacks.onDeviceProbeResult },
  set onDeviceProbeResult(fn) { usbSerialCallbacks.onDeviceProbeResult = fn },
  get onDeviceOpened() { return usbSerialCallbacks.onDeviceOpened },
  set onDeviceOpened(fn) { usbSerialCallbacks.onDeviceOpened = fn },
  get onDeviceState() { return usbSerialCallbacks.onDeviceState },
  set onDeviceState(fn) { usbSerialCallbacks.onDeviceState = fn },
  get onDeviceData() { return usbSerialCallbacks.onDeviceData },
  set onDeviceData(fn) { usbSerialCallbacks.onDeviceData = fn },
  startDiscovery() { ipcRenderer.send('usb-start-discovery') },
  stopDiscovery() { ipcRenderer.send('usb-stop-discovery') },
  getDiscoveredDevices() { return ipcRenderer.invoke('usb-get-discovered') },
  deviceProbe(deviceName, portNumber, baudRate, hexCmd, timeoutMs) {
    ipcRenderer.send('usb-device-probe', { deviceName, portNumber, baudRate, hexCmd, timeoutMs })
  },
  deviceOpen(deviceName, portNumber, baudRate) {
    ipcRenderer.send('usb-device-open', { deviceName, portNumber, baudRate })
  },
  deviceClose(deviceName, portNumber) {
    ipcRenderer.send('usb-device-close', { deviceName, portNumber })
  },
  deviceWrite(deviceName, portNumber, hexData) {
    ipcRenderer.send('usb-device-write', { deviceName, portNumber, hexData })
  }
}

function injectUsbSerialBridge() {
  const source = `
;(() => {
  if (window.usbSerial) return
  const callbacks = {
    onDeviceAttached: null,
    onDeviceDetached: null,
    onDeviceDiscovered: null,
    onDeviceProbeResult: null,
    onDeviceOpened: null,
    onDeviceState: null,
    onDeviceData: null
  }

  Object.defineProperty(window, 'usbSerial', {
    configurable: true,
    enumerable: true,
    value: {
      get onDeviceAttached() { return callbacks.onDeviceAttached },
      set onDeviceAttached(fn) { callbacks.onDeviceAttached = fn },
      get onDeviceDetached() { return callbacks.onDeviceDetached },
      set onDeviceDetached(fn) { callbacks.onDeviceDetached = fn },
      get onDeviceDiscovered() { return callbacks.onDeviceDiscovered },
      set onDeviceDiscovered(fn) { callbacks.onDeviceDiscovered = fn },
      get onDeviceProbeResult() { return callbacks.onDeviceProbeResult },
      set onDeviceProbeResult(fn) { callbacks.onDeviceProbeResult = fn },
      get onDeviceOpened() { return callbacks.onDeviceOpened },
      set onDeviceOpened(fn) { callbacks.onDeviceOpened = fn },
      get onDeviceState() { return callbacks.onDeviceState },
      set onDeviceState(fn) { callbacks.onDeviceState = fn },
      get onDeviceData() { return callbacks.onDeviceData },
      set onDeviceData(fn) { callbacks.onDeviceData = fn },
      startDiscovery() { window.__electronNativeUsbSerial.startDiscovery() },
      stopDiscovery() { window.__electronNativeUsbSerial.stopDiscovery() },
      getDiscoveredDevices() { return window.__electronNativeUsbSerial.getDiscoveredDevices() },
      deviceProbe(deviceName, portNumber, baudRate, hexCmd, timeoutMs) {
        return window.__electronNativeUsbSerial.deviceProbe(deviceName, portNumber, baudRate, hexCmd, timeoutMs)
      },
      deviceOpen(deviceName, portNumber, baudRate) {
        return window.__electronNativeUsbSerial.deviceOpen(deviceName, portNumber, baudRate)
      },
      deviceClose(deviceName, portNumber) {
        return window.__electronNativeUsbSerial.deviceClose(deviceName, portNumber)
      },
      deviceWrite(deviceName, portNumber, hexData) {
        return window.__electronNativeUsbSerial.deviceWrite(deviceName, portNumber, hexData)
      }
    }
  })

  window.addEventListener('message', event => {
    const payload = event.data
    if (!payload || !payload.__electronUsbSerialEvent) return
    const cb = callbacks[payload.callbackName]
    if (typeof cb === 'function') cb(payload.value)
  })
})()
`
  const script = document.createElement('script')
  script.textContent = source
  ;(document.documentElement || document.head).appendChild(script)
  script.remove()
}

function injectUsbSerialBridgeWhenReady() {
  if (document.documentElement || document.head) {
    injectUsbSerialBridge()
    return
  }
  const timer = setInterval(() => {
    if (!(document.documentElement || document.head)) return
    clearInterval(timer)
    injectUsbSerialBridge()
  }, 0)
}

injectUsbSerialBridgeWhenReady()

const bluetoothSppCallbacks = {
  onDeviceSelected: null,
  onDeviceOpened: null,
  onDeviceDataReceived: null,
  onDeviceStateChanged: null
}

ipcRenderer.on('bluetooth-device-selected', (_event, success, address) => {
  if (typeof bluetoothSppCallbacks.onDeviceSelected === 'function') {
    bluetoothSppCallbacks.onDeviceSelected(success, address)
  }
})
ipcRenderer.on('bluetooth-device-opened', (_event, success, mac) => {
  if (typeof bluetoothSppCallbacks.onDeviceOpened === 'function') {
    bluetoothSppCallbacks.onDeviceOpened(success, mac)
  }
})
ipcRenderer.on('bluetooth-device-data-received', (_event, mac, data) => {
  if (typeof bluetoothSppCallbacks.onDeviceDataReceived === 'function') {
    bluetoothSppCallbacks.onDeviceDataReceived(mac, data)
  }
})
ipcRenderer.on('bluetooth-device-state-changed', (_event, mac, state) => {
  if (typeof bluetoothSppCallbacks.onDeviceStateChanged === 'function') {
    bluetoothSppCallbacks.onDeviceStateChanged(mac, state)
  }
})

const bluetoothSpp = {
  deviceSelect(namePrefix) { ipcRenderer.send('bluetooth-device-select', namePrefix) },
  deviceOpen(mac) { ipcRenderer.send('bluetooth-device-open', mac) },
  deviceWrite(mac, data) { ipcRenderer.send('bluetooth-device-write', mac, data) },
  deviceClose(mac) { ipcRenderer.send('bluetooth-device-close', mac) },
  get onDeviceSelected() { return bluetoothSppCallbacks.onDeviceSelected },
  set onDeviceSelected(fn) { bluetoothSppCallbacks.onDeviceSelected = fn },
  get onDeviceOpened() { return bluetoothSppCallbacks.onDeviceOpened },
  set onDeviceOpened(fn) { bluetoothSppCallbacks.onDeviceOpened = fn },
  get onDeviceDataReceived() { return bluetoothSppCallbacks.onDeviceDataReceived },
  set onDeviceDataReceived(fn) { bluetoothSppCallbacks.onDeviceDataReceived = fn },
  get onDeviceStateChanged() { return bluetoothSppCallbacks.onDeviceStateChanged },
  set onDeviceStateChanged(fn) { bluetoothSppCallbacks.onDeviceStateChanged = fn }
}

contextBridge.exposeInMainWorld('app', app)
contextBridge.exposeInMainWorld('net', net)
contextBridge.exposeInMainWorld('sensor', sensor)
contextBridge.exposeInMainWorld('__electronNativeAppSensor', nativeAppSensor)
contextBridge.exposeInMainWorld('appLocation', appLocation)
contextBridge.exposeInMainWorld('__electronNativeUsbSerial', usbSerial)
contextBridge.exposeInMainWorld('bluetoothSpp', bluetoothSpp)