My own unflatten

my-own-unflatten.js

const _ = require('lodash')

const SETTINGS = {
  header_background_color: value(/whitelabel\.header_background_color/g),
  footer_background_color: value(/whitelabel\.footer_background_color/g),
  footer_sections: array(/whitelabel\.footer_sections\../g, 2),
  footer_sections_title: value(/whitelabel\.footer_sections\..\.title/g),
  footer_sections_links: array(/whitelabel\.footer_sections\..\.links\../g, 4),
  footer_sections_links_title: value(/whitelabel\.footer_sections\..\.links\..\.title/g),
  footer_sections_links_tooltip: value(/whitelabel\.footer_sections\..\.links\..\.tooltip/g),
  footer_sections_links_link: value(/whitelabel\.footer_sections\..\.links\..\.link/g),
}

function array(regex, position) {
  return { regex, position }
}

function value(regex) {
  return { regex }
}

class WhitelabelService {

  extract(setting) {
    const settings = _.get(setting, 'ox_specific.qx_settings', [])

    const headerBackgroundColor = this._findSettingValue(settings, SETTINGS.header_background_color.regex)
    const footerBackgroundColor = this._findSettingValue(settings, SETTINGS.footer_background_color.regex)

    const sections = this._getArrayOfSettings(settings, SETTINGS.footer_sections.regex)

    const splitedSections = this._splitByPosition(sections, SETTINGS.footer_sections.position)

    const result = splitedSections.map(section => {
      const sectionTitle = this._findSettingValue(section, SETTINGS.footer_sections_title.regex)

      const links = this._getArrayOfSettings(section, SETTINGS.footer_sections_links.regex)
      const splitedLinks = this._splitByPosition(links, SETTINGS.footer_sections_links.position)

      const resultLinks = splitedLinks.map(link => {
        const linkTitle = this._findSettingValue(link, SETTINGS.footer_sections_links_title.regex)
        const linkTooltip = this._findSettingValue(link, SETTINGS.footer_sections_links_tooltip.regex)
        const linkLink = this._findSettingValue(link, SETTINGS.footer_sections_links_link.regex)

        return {
          title: linkTitle,
          tooltip: linkTooltip,
          link: linkLink
        }
      })

      return {
        title: sectionTitle,
        links: resultLinks
      }
    })

    return result
  }

  _splitByPosition(settings, position) {
    const result = []

    settings.forEach(section => {
      const split = section.wx_settingsname.split('.')

      if (split.length - 1 < position) return

      const index = split[position]

      if (!result[index]) {
        result[index] = []
      }

      result[index].push(section)
    })

    return result
  }

  _findSettingValue(settings, regex) {
    const foundSetting = settings.find(item => item.wx_settingsname.match(regex))
    return this._getSettingValue(foundSetting)
  }

  _getSettingValue(setting) {
    return _.get(setting, 'wx_activevalue.wx_value', '')
  }

  _getArrayOfSettings(settings, regex) {
    return settings.filter(item => item.wx_settingsname.match(regex)) || []
  }

}

module.exports = new WhitelabelService();