import cookies from 'js-cookie'
import semver from 'semver'
import { COOKIE_ROOT_DOMAIN, COOKIE_APP_KEY, COOKIE_APP_EXTRA_KEY, COOKIE_ACCESS_TOKEN_KEY, MSG_REQUIRE_LOGIN, APP_INJECT_COOKIE_KEYS, DEF_SYNCED_COOKIE_EXP } from './constant'
import { Notifier, SyncCookiesOptions } from '../types/global'

const setupWebViewJavascriptBridge = (callback) => {
  if (window.WebViewJavascriptBridge) {
    return callback(window.WebViewJavascriptBridge)
  }
  if (window.WVJBCallbacks) {
    return window.WVJBCallbacks.push(callback)
  }
  window.WVJBCallbacks = [callback]
  var WVJBIframe = document.createElement('iframe')
  WVJBIframe.style.display = 'none'
  WVJBIframe.src = 'https://__bridge_loaded__'
  document.documentElement.appendChild(WVJBIframe)
  setTimeout(function () {
    document.documentElement.removeChild(WVJBIframe)
  }, 0)
}

const parseJWT = (token: string): any => {
  const payloadStr = token.split('.')[1]

  if (!payloadStr) {
    return null
  }

  try {
    return JSON.parse(atob(payloadStr))
  } catch (e) {
    // tslint:disable-next-line
    console.error('[parseJWT]', e)
  }

  return null
}

const getAppInfo = () => {
  const val = cookies.get(COOKIE_APP_KEY)
  const matched = val && /^(ios|android)\ ((?:\d\.?)+)$/.exec(val)

  if (!matched) {
    return null
  }

  return {
    os: matched[1],
    version: matched[2]
  }
}

const getAppExtra = (): any => {
  const val = cookies.get(COOKIE_APP_EXTRA_KEY)
  const segments = val && val.split(/\s+/)

  if (!segments || !segments.length) {
    return {}
  }

  return segments.reduce((map, item) => {
    const matched = /^([0-9a-zA-Z_-]+)\/(.+)$/.exec(item)

    if (matched) {
      map[matched[1]] = matched[2]
    }

    return map
  }, {})
}

let cachedAppInfo: any
let cachedappExtra: any

class ProginnBridge {
  root = window.app_event || window.appBridge

  private notifier?: Notifier

  constructor(opts?: {
    notifier?: Notifier
  }) {
    const { notifier } = opts || {}

    this.notifier = notifier
  }

  get appInfo() {
    cachedAppInfo = cachedAppInfo || getAppInfo()
    return cachedAppInfo
  }

  get appExtra() {
    cachedappExtra = cachedappExtra || getAppExtra()
    return cachedappExtra
  }

  get appVersion() {
    return this.appInfo?.version
  }

  get os() {
    return this.appInfo?.os
  }

  get isInApp() {
    return !!(this.appInfo || this.root)
  }

  get isAndroid() {
    return /Android/.test(window.navigator.userAgent) || this.os === 'android' || false
  }

  get isIos() {
    return /iP(hone|ad|od)/.test(window.navigator.userAgent) || this.os === 'ios' || false
  }

  get cookie() {
    return cookies.get()
  }

  get isLogined() {
    return !!cookies.get(COOKIE_ACCESS_TOKEN_KEY)
  }

  get uid(): string | null {
    const token = cookies.get(COOKIE_ACCESS_TOKEN_KEY)
    const payload = token && parseJWT(token)

    return payload?.uid
  }

  inject(name: string, cb: (...args: any) => void, root = 'Proginn') {
    window[root] = window[root] || {}
    window[root][name] = cb
  }

  invoke(fn: string, data: any = null, cb: Function = () => {}) {
    if (this.isIos && this.compareAppVersion('gte', '4.22.0')) {
      setupWebViewJavascriptBridge((bridge) => {
        bridge.callHandler(fn, data, cb)
      })
      return
    }

    if (!this.root) {
      // tslint:disable-next-line
      console.warn(`Bridge invoke ${fn} skipped.`)
      return null
    }

    if (this.isAndroid) {
      if (typeof this.root[fn] === 'function') {
        return data ? this.root[fn](data) : this.root[fn]()
      } else {
        return null
      }
    } else {
      return this.root(fn, data)
    }
  }

  back() {
    if (!this.isInApp) {
      window.history.back()
    } else {
      if (this.isIos && this.compareAppVersion('gte', '4.22.0')) {
        this.invoke('back')
      }
      else {
        this.invoke('back_page')
      }
    }
  }

  close() {
    if (this.isAndroid || this.compareAppVersion('lt', '4.22.0')) {
      this.invoke('finishActivity')
    } else {
      this.invoke('close')
    }
  }

  load(url: string) {
    window.location.href = url
  }

  open(url: string, title?: string) {
    if (this.isInApp && (!this.isAndroid || this.compareAppVersion('gte', '4.20.0'))) {
      url = `proginn://webview?url=${encodeURIComponent(url)}${title ? '&title=' + encodeURIComponent(title) : ''}`
    }

    this.load(url)
  }

  login() {
    if (!this.isInApp) {
      return
    }

    this.load('proginn://login?backToPage=true')
  }

  checkLogin(force = false) {
    if (force || !this.isLogined) {
      this.notifier && this.notifier(MSG_REQUIRE_LOGIN, -99)
      this.login()
      return false
    }

    return true
  }

  compareAppVersion(operator: 'gt' | 'lt' | 'gte' | 'lte' | 'eq' | 'neq', version: string) {
    return this.appVersion ? semver[operator](this.appVersion, version) : false
  }

  syncCookies(opts?: SyncCookiesOptions) {
    opts = opts || {}
    opts.domain = opts.domain || COOKIE_ROOT_DOMAIN
    opts.expires = opts.expires || DEF_SYNCED_COOKIE_EXP

    for (const key of APP_INJECT_COOKIE_KEYS) {
      const val = cookies.get(key)

      if (val) {
        cookies.set(key, val, opts)
      }
    }
  }

  // generally to fix android webview cookies non-inject bug
  cacheCookiesInStorage() {
    for (const key of APP_INJECT_COOKIE_KEYS) {
      const val = cookies.get(key)

      if (val) {
        window.localStorage.setItem(key, val)
      } else {
        window.localStorage.removeItem(key)
      }
    }
  }

  loadCookiesInStorage(opts?: SyncCookiesOptions) {
    opts = opts || {}
    opts.domain = opts.domain || COOKIE_ROOT_DOMAIN
    opts.expires = opts.expires || DEF_SYNCED_COOKIE_EXP

    for (const key of APP_INJECT_COOKIE_KEYS) {
      // pass if already exists
      if (cookies.get(key)) {
        continue
      }

      const val = window.localStorage.getItem(key)

      if (val) {
        cookies.set(key, val, opts)
      }
    }
  }

  // load data
  loadUserData(data: any) {
    if (this.isAndroid) {
      this.invoke('user_load', data)
    }
    else if (this.compareAppVersion('lt', '4.22.0')) {
      this.invoke('user_load', {
        userInfo: data,
      })
    }
    else {
      this.invoke('loadUserData', data)
    }
  }

  loadShareData(data: any) {
    if (this.isAndroid) {
      this.invoke('load_share_data', JSON.stringify(data))
    }
    else if (this.compareAppVersion('lt', '4.22.0')) {
      this.invoke('load_share_data', data)
    }
    else {
      this.invoke('loadShareData', data)
    }
  }

  loadTopicData(data: {
    topic_id: string
    user_id: string
    share_content: any
    topics: any[]
  }) {
    if (this.isAndroid) {
      this.invoke('topic_load', data.topic_id)
    }
    else if (this.compareAppVersion('lt', '4.22.0')) {
      this.invoke('topic_load', data)
    }
    else {
      this.invoke('loadTopicData', data)
    }
  }

  // ui
  setNavigationBarColor(hex: string) {
    if (this.isAndroid || this.compareAppVersion('lt', '4.22.0')) {
      this.invoke('setTitleBarColor', hex)
    } else {
      this.invoke('setNavigationBarColor', hex)
    }
  }

  setNavigationBarTitle(text: string) {
    this.invoke('setNavigationBarTitle', text)
  }
}

export default ProginnBridge