Promise = env.require 'bluebird' assert = env.require 'cassert' _ = env.require 'lodash' Gpio = env.Gpio or require('onoff').Gpio Promise.promisifyAll(Gpio.prototype) class GpioPlugin extends env.plugins.Plugin init: (app, @framework, @config) -> deviceConfigDef = require("./device-config-schema") @framework.deviceManager.registerDeviceClass("GpioPresence", { configDef: deviceConfigDef.GpioPresence, createCallback: (config) => new GpioPresence(config) }) @framework.deviceManager.registerDeviceClass("GpioSwitch", { configDef: deviceConfigDef.GpioSwitch, createCallback: (config) => new GpioSwitch(config) }) plugin = new GpioPlugin class GpioSwitch extends env.devices.PowerSwitch constructor: (@config) -> @name = config.name @id = config.id @gpio = new Gpio config.gpio, 'out', 'both'

@gpio.watch (err, value) => if err? env.logger.error err.message env.logger.debug err.stack else _state = (if value is 1 then yes else no) if @config.inverted then state = not _state else state = _state @_setState(state) super() getState: () -> if @_state? then Promise.resolve @_state @gpio.readAsync().then( (value) => _state = (if value is 1 then yes else no) if @config.inverted then @_state = not _state else @_state = _state return @_state ) changeStateTo: (state) -> assert state is on or state is off if @config.inverted then _state = not state else _state = state @gpio.writeAsync(if _state then 1 else 0).then( () => @_setState(state) )

class GpioPresence extends env.devices.PresenceSensor constructor: (@config) -> @id = config.id @name = config.name @gpio = new Gpio(config.gpio, 'in', 'both') @_readPresenceValue().done() @gpio.watch (err, value) => if err? env.logger.error err.message env.logger.debug err.stack else @_setPresenceValue value super() _setPresenceValue: (value) -> assert value is 1 or value is 0 state = (if value is 1 then yes else no) if @config.inverted then state = not state @_setPresence state _readPresenceValue: -> @gpio.readAsync().then( (value) => @_setPresenceValue value return @_presence ) getPresence: () -> if @_presence? then Promise.resolve(@_presence) else @_readPresenceValue()

plugin.GpioSwitch = GpioSwitch plugin.GpioPresence = GpioPresence return plugin