import ReactGA from 'react-ga'
import snarkdown from 'snarkdown'

export const getOverridedComponent = (overrides, componentName) => {
  if (overrides?.[componentName]) {
    const { module, component } = overrides[componentName]
    if (module && component) {
      return window.botpress[module][component]
    }
  }
}

export const isIE = window.navigator.userAgent.match(/MSIE|Trident/) !== null

export const asyncDebounce = async timeMs => {
  let lastClickInMs = undefined

  const debounce = promise => {
    const now = Date.now()
    if (!lastClickInMs) {
      lastClickInMs = now
    }

    if (now - lastClickInMs > timeMs) {
      lastClickInMs = now
      return promise
    }
  }
}

export const downloadFile = (name, blob) => {
  const url = window.URL.createObjectURL(blob)
  const link = document.createElement('a')

  link.href = url
  link.setAttribute('download', name)

  document.body.appendChild(link)
  link.click()

  document.body.removeChild(link)
  window.URL.revokeObjectURL(url)
}

export const checkLocationOrigin = () => {
  if (!window.location.origin) {
    const { protocol, hostname, port } = window.location
    // @ts-ignore
    window.location.origin = `${protocol}//${hostname}${port && `:${port}`}`
  }
}

export const initializeAnalytics = () => {
  if (window.SEND_USAGE_STATS) {
    try {
      // @ts-ignore
      ReactGA.initialize('UA-90044826-2', {
        gaOptions: {
          // @ts-ignore
          userId: window.UUID
        }
      })
      // @ts-ignore
      ReactGA.pageview(window.location.pathname + window.location.search)
    } catch (err) {
      console.error('Error init analytics', err)
    }
  }
}

export const trackMessage = (direction: 'sent' | 'received') => {
  if (window.SEND_USAGE_STATS) {
    try {
      ReactGA.event({ category: 'Interactions', action: `message ${direction}` })
    } finally {
    }
  }
}

export const trackWebchatState = (state: 'show' | 'hide' | 'toggle') => {
  if (window.SEND_USAGE_STATS) {
    try {
      ReactGA.event({ category: 'Display', action: state })
    } finally {
    }
  }
}

export const renderUnsafeHTML = (message: string = '', escaped: boolean): string => {
  if (escaped) {
    message = message.replace(/</g, '&lt;').replace(/>/g, '&gt;')
  }

  const html = snarkdown(message)
  return html.replace(/<a href/gi, '<a target="_blank" href')
}

const rtlLocales = [
  'ae' /* Avestan */,
  'ar' /* 'العربية', Arabic */,
  'arc' /* Aramaic */,
  'bcc' /* 'بلوچی مکرانی', Southern Balochi */,
  'bqi' /* 'بختياري', Bakthiari */,
  'ckb' /* 'Soranî / کوردی', Sorani */,
  'dv' /* Dhivehi */,
  'fa' /* 'فارسی', Persian */,
  'glk' /* 'گیلکی', Gilaki */,
  'he' /* 'עברית', Hebrew */,
  'ku' /* 'Kurdî / كوردی', Kurdish */,
  'mzn' /* 'مازِرونی', Mazanderani */,
  'nqo' /* N'Ko */,
  'pnb' /* 'پنجابی', Western Punjabi */,
  'ps' /* 'پښتو', Pashto, */,
  'sd' /* 'سنڌي', Sindhi */,
  'ug' /* 'Uyghurche / ئۇيغۇرچە', Uyghur */,
  'ur' /* 'اردو', Urdu */,
  'yi' /* 'ייִדיש', Yiddish */
]

// 'en-US' becomes ['en', '-us'] 'en' becomes ['en']
const localeRegex = /^([a-zA-Z]*)([_\-a-zA-Z]*)$/

export const isRTLLocale = (locale: string | undefined | null): boolean => {
  if (!locale) {
    return false
  }
  locale = locale.toLowerCase()
  const matches = localeRegex.exec(locale)

  if (!matches) {
    return false
  }

  return rtlLocales.includes(matches[1])
}
