homebridge-deconz/lib/DeconzPlatform.js

Homebridge plugin for deCONZ

// homebridge-deconz/lib/DeconzPlatform.js
// Copyright © 2022-2026 Erik Baauw. All rights reserved.
//
// Homebridge plugin for deCONZ.

import { once } from 'node:events'

import { timeout } from 'homebridge-lib'
import { OptionParser } from 'homebridge-lib/OptionParser'
import { Platform } from 'homebridge-lib/Platform'

import { Discovery } from 'hb-deconz-tools/Discovery'

import { DeconzAccessory } from './DeconzAccessory/index.js'
import './DeconzAccessory/Gateway.js'

class DeconzPlatform extends Platform {
  constructor (log, configJson, homebridge, bridge) {
    super(log, configJson, homebridge)
    this.parseConfigJson(configJson)
    this.debug('config: %j', this.config)

    this
      .on('accessoryRestored', this.accessoryRestored)
      .once('heartbeat', this.init)
      .on('heartbeat', this.heartbeat)
  }

  parseConfigJson (configJson) {
    this.config = {
      hosts: [],
      noResponse: false,
      parallelRequests: 10,
      stealth: false,
      timeout: 5,
      waitTimePut: 50,
      waitTimePutGroup: 1000,
      waitTimeResend: 300,
      waitTimeReset: 500,
      waitTimeUpdate: 100
    }
    const optionParser = new OptionParser(this.config, true)
    optionParser
      .on('userInputError', (message) => {
        this.warn('config.json: %s', message)
      })
      .stringKey('name')
      .stringKey('platform')
      .stringKey('host')
      .arrayKey('hosts')
      .boolKey('noResponse')
      .intKey('parallelRequests', 1, 30)
      .boolKey('stealth')
      .intKey('timeout', 5, 30)
      .intKey('waitTimePut', 0, 50)
      .intKey('waitTimePutGroup', 0, 1000)
      .intKey('waitTimeResend', 100, 1000)
      .intKey('waitTimeReset', 10, 2000)
      .intKey('waitTimeUpdate', 0, 500)

    this.gatewayMap = {}

    try {
      optionParser.parse(configJson)
      if (this.config.host != null) {
        this.config.hosts.push(this.config.host)
      }
      this.discovery = new Discovery({
        logger: this,
        timeout: this.config.timeout
      })
    } catch (error) {
      this.error(error)
    }
  }

  async foundGateway (host, config) {
    const id = config.bridgeid
    if (this.gatewayMap[id] == null) {
      this.gatewayMap[id] = new DeconzAccessory.Gateway(this, { config, host })
      await this.gatewayMap[id].found(host, config)
      await once(this.gatewayMap[id], 'initialised')
    } else {
      await this.gatewayMap[id].found(host, config)
    }
    this.emit('found')
  }

  async findHost (host) {
    try {
      const config = await this.discovery.config(host)
      await this.foundGateway(host, config)
    } catch (error) {
      this.warn('%s: %s - retrying in 60s', host, error)
      await timeout(60000)
      return this.findHost(host)
    }
  }

  async init () {
    try {
      const jobs = []
      if (this.config.hosts.length > 0) {
        for (const host of this.config.hosts) {
          this.debug('job %d: find gateway at %s', jobs.length, host)
          jobs.push(this.findHost(host))
        }
      } else {
        this.debug('job %d: find at least one gateway', jobs.length)
        jobs.push(once(this, 'found'))
        for (const id in this.gatewayMap) {
          const gateway = this.gatewayMap[id]
          const host = gateway.values.host
          this.debug('job %d: find gateway %s', jobs.length, id)
          jobs.push(once(gateway, 'initialised'))
          try {
            const config = await this.discovery.config(host)
            await this.foundGateway(host, config)
          } catch (error) {
            this.warn('%s: %s', id, error)
          }
        }
      }

      this.debug('waiting for %d jobs', jobs.length)
      for (const id in jobs) {
        try {
          await jobs[id]
          this.debug('job %d/%d: done', Number(id) + 1, jobs.length)
        } catch (error) {
          this.warn(error)
        }
      }

      this.log('%d gateways', Object.keys(this.gatewayMap).length)
      this.emit('initialised')
      const dumpInfo = {
        config: this.config,
        gatewayMap: {}
      }
      for (const id in this.gatewayMap) {
        const gateway = this.gatewayMap[id]
        dumpInfo.gatewayMap[id] = Object.assign({}, gateway.context)
        dumpInfo.gatewayMap[id].deviceById = gateway.deviceById
      }
      await this.createDumpFile(dumpInfo)
    } catch (error) { this.error(error) }
  }

  async onUiRequest (method, url, body) {
    const path = url.split('/').slice(1)
    if (path.length < 1) {
      return { status: 403 } // Forbidden
    }
    if (path[0] === 'gateways') {
      if (path.length === 1) {
        if (method === 'GET') {
          // const gatewayByHost = await this.discovery.discover()
          const body = {}
          for (const id of Object.keys(this.gatewayMap).sort()) {
            const gateway = this.gatewayMap[id]
            body[gateway.values.host] = {
              config: gateway.context.config,
              host: gateway.values.host,
              id
            }
          }
          return { status: 200, body }
        }
        return { status: 405 } // Method Not Allowed
      }
      const gateway = this.gatewayMap[path[1]]
      if (gateway == null) {
        return { status: 404 } // Not Found
      }
      if (method === 'GET') {
        return gateway.onUiGet(path.slice(2))
      }
      if (method === 'PUT') {
        return gateway.onUiPut(path.slice(2), body)
      }
      return { status: 405 } // Method Not Allowed
    }
    return { status: 403 } // Forbidden
  }

  async heartbeat (beat) {
    try {
      if (beat % 300 === 5 && this.config.hosts.length === 0) {
        const configs = await this.discovery.discover()
        const jobs = []
        for (const host in configs) {
          if (this.config.hosts.length === 0 || this.gatewayMap[configs[host].bridgeid] != null) {
            jobs.push(this.foundGateway(host, configs[host]))
          }
        }
        for (const job of jobs) {
          try {
            await job
          } catch (error) {
            this.error(error)
          }
        }
      }
    } catch (error) { this.error(error) }
  }

  /** Called when an accessory has been restored.
    *
    * Re-create {@link DeconzAccessory.Gateway Gateway} delegates for restored
    * gateway accessories.
    * Accessories for devices exposed by the gateway will be restored from
    * the gateway context, once Homebridge has started it's HAP server.
    */
  accessoryRestored (className, version, id, name, context) {
    try {
      if (className === 'Gateway') {
        if (
          this.config.hosts.length === 0 ||
          this.config.hosts.includes(context.host)
        ) {
          this.gatewayMap[id] = new DeconzAccessory.Gateway(this, context)
        }
      }
    } catch (error) { this.error(error) }
  }
}

export { DeconzPlatform }