import fs from 'node:fs'

import { HomebridgePluginUiServer } from '@homebridge/plugin-ui-utils'

class PluginUiServer extends HomebridgePluginUiServer {
  constructor() {
    super()
    /*
      A native method getCachedAccessories() was introduced in config-ui-x v4.37.0
      The following is for users who have a lower version of config-ui-x
    */
    this.onRequest('getCachedAccessories', () => {
      try {
        const plugin = 'homebridge-switchbot'
        const devicesToReturn = []

        // The path and file of the cached accessories
        const accFile = `${this.homebridgeStoragePath}/accessories/cachedAccessories`

        // Check the file exists
        if (fs.existsSync(accFile)) {
          // read the cached accessories file
          const cachedAccessories: any[] = JSON.parse(fs.readFileSync(accFile, 'utf8'))

          cachedAccessories.forEach((accessory: any) => {
            // Check the accessory is from this plugin
            if (accessory.plugin === plugin) {
              // Add the cached accessory to the array
              devicesToReturn.push(accessory.accessory as never)
            }
          })
        }
        // Return the array
        return devicesToReturn
      } catch {
        // Just return an empty accessory list in case of any errors
        return []
      }
    })
    this.ready()
  }
}

function startPluginUiServer(): PluginUiServer {
  return new PluginUiServer()
}

startPluginUiServer()