@maxsaber/homebridge-govee/lib/device/switch-double.js

Homebridge plugin to integrate Govee devices into HomeKit.

import { parseError } from '../utils/functions.js'
import platformLang from '../utils/lang-en.js'

export default class {
  constructor(platform, accessory) {
    // Set up variables from the platform
    this.hapChar = platform.api.hap.Characteristic
    this.hapErr = platform.api.hap.HapStatusError
    this.hapServ = platform.api.hap.Service
    this.platform = platform

    // Set up variables from the accessory
    this.accessory = accessory

    // Remove outlet services if they exist
    if (this.accessory.getService('Outlet 1')) {
      this.accessory.removeService(this.accessory.getService('Outlet 1'))
    }
    if (this.accessory.getService('Outlet 2')) {
      this.accessory.removeService(this.accessory.getService('Outlet 2'))
    }

    // Add the switch services if they don't already exist
    this.service1 = this.accessory.getService('Switch 1')
    || this.accessory.addService(this.hapServ.Switch, 'Switch 1', 'switch1')
    this.service2 = this.accessory.getService('Switch 2')
    || this.accessory.addService(this.hapServ.Switch, 'Switch 2', 'switch2')

    if (!this.service1.testCharacteristic(this.hapChar.ConfiguredName)) {
      this.service1.addCharacteristic(this.hapChar.ConfiguredName)
      this.service1.updateCharacteristic(this.hapChar.ConfiguredName, 'Switch 1')
    }
    if (!this.service1.testCharacteristic(this.hapChar.ServiceLabelIndex)) {
      this.service1.addCharacteristic(this.hapChar.ServiceLabelIndex)
      this.service1.updateCharacteristic(this.hapChar.ServiceLabelIndex, 1)
    }
    if (!this.service2.testCharacteristic(this.hapChar.ConfiguredName)) {
      this.service2.addCharacteristic(this.hapChar.ConfiguredName)
      this.service2.updateCharacteristic(this.hapChar.ConfiguredName, 'Switch 2')
    }
    if (!this.service2.testCharacteristic(this.hapChar.ServiceLabelIndex)) {
      this.service2.addCharacteristic(this.hapChar.ServiceLabelIndex)
      this.service2.updateCharacteristic(this.hapChar.ServiceLabelIndex, 2)
    }

    // Add the set handler to the switch on/off characteristic
    this.service1.getCharacteristic(this.hapChar.On).onSet(async (value) => {
      await this.internalStateUpdate(this.service1, value ? 34 : 32)
    })
    this.service1.cacheState = this.service1.getCharacteristic(this.hapChar.On).value ? 'on' : 'off'
    this.service2.getCharacteristic(this.hapChar.On).onSet(async (value) => {
      await this.internalStateUpdate(this.service2, value ? 17 : 16)
    })
    this.service2.cacheState = this.service2.getCharacteristic(this.hapChar.On).value ? 'on' : 'off'

    // Output the customised options to the log
    const opts = JSON.stringify({
      showAs: 'switch',
    })
    platform.log('[%s] %s %s.', accessory.displayName, platformLang.devInitOpts, opts)

    // 51 turns BOTH ON
    // 48 turns BOTH OFF
    // 34 turns outlet 1 ON
    // 32 turns outlet 1 OFF
    // 17 turns outlet 2 ON
    // 16 turns outlet 2 OFF
  }

  async internalStateUpdate(service, value) {
    try {
      const newValue = value % 16 === 0 ? 'off' : 'on'

      // Don't continue if the new value is the same as before
      if (service.cacheState === newValue) {
        return
      }

      // Send the request to the platform sender function
      await this.platform.sendDeviceUpdate(this.accessory, {
        cmd: 'stateDual',
        value,
      })

      // Cache the new state and log if appropriate
      if (service.cacheState !== newValue) {
        service.cacheState = newValue
        this.accessory.log(`[${service.getCharacteristic(this.hapChar.ConfiguredName).value}] ${platformLang.curState} [${newValue}]`)
      }
    } catch (err) {
      // Catch any errors during the process
      this.accessory.logWarn(`${platformLang.devNotUpdated} ${parseError(err)}`)

      // Throw a 'no response' error and set a timeout to revert this after 2 seconds
      setTimeout(() => {
        service.updateCharacteristic(this.hapChar.On, service.cacheState === 'on')
      }, 2000)
      throw new this.hapErr(-70402)
    }
  }

  externalUpdate(params) {
    if (!Array.isArray(params.state)) {
      return
    }

    if (params.state[0] !== this.service1.cacheState) {
      this.service1.cacheState = params.state[0]
      this.service1.updateCharacteristic(this.hapChar.On, this.service1.cacheState === 'on')

      this.accessory.log(`[${this.service1.getCharacteristic(this.hapChar.ConfiguredName).value}] ${platformLang.curState} [${this.service1.cacheState}]`)
    }

    if (params.state[1] !== this.service2.cacheState) {
      this.service2.cacheState = params.state[1]
      this.service2.updateCharacteristic(this.hapChar.On, this.service2.cacheState === 'on')

      this.accessory.log(`[${this.service2.getCharacteristic(this.hapChar.ConfiguredName).value}] ${platformLang.curState} [${this.service2.cacheState}]`)
    }
  }
}