import { parseJwt, getHashParams, isBrowser, uuid, urlBase64Decode } from './util'
import { Capacitor } from '@capacitor/core'
import { Browser } from '@capacitor/browser'
import type { MailPhoneProps, PasswordCredentials, ProviderProps, EmailResetProps } from './types'

export default class OmneediaAuth {
  protected ref: any
  protected tokenListener: any = null
  private options: any
  constructor(ref: any, options?: any) {
    this.options = options
    this.ref = ref
    this.tokenListener = setInterval(async () => {
      if (isBrowser()) {
        /** look storage */
        let session = await this.session().getUser()
        if (!session) return
        let refresh = localStorage.getItem('omneedia.auth.refresh_token')
        if (!refresh) {
          localStorage.removeItem('omneedia.auth.token')
          localStorage.removeItem('omneedia.auth.refresh_token')
          return (location.href = `#new_token=${refresh}`)
        }
        let date = new Date(session.exp * 1000)
        if (date < new Date()) {
          let token = await this.getNewToken(refresh)
          if (token === false) {
            localStorage.removeItem('omneedia.auth.token')
            localStorage.removeItem('omneedia.auth.refresh_token')
            return (location.href = `#new_token=${refresh}`)
          }
          localStorage.setItem('omneedia.auth.token', token)
          return (location.href = `#new_token=${refresh}`)
        }
      } else {
        let session = await this.session().getUser()
        if (!session) return
      }
    }, 1000)
  }
  public async getNewToken(refresh_token: string | null): Promise<any> {
    let { data } = await this.ref.request.post(
      this.ref.PREFIX.AUTH + '/token?grant_type=refresh_token',
      {
        refresh_token: refresh_token,
      }
    )
    var response: string | null | boolean
    if (data.err) response = false
    else {
      response = data.access_token
    }
    return response
  }
  private _setUserData(data: any) {
    this.options.cookies.setAll([
      {
        name: 'omneedia.auth.token',
        value: data.access_token,
        lifetime: 60 * 3600 * 8,
        domain: '',
        path: '/',
        sameSite: 'lax',
      },
    ])
  }
  public async signInWithPassword(props: PasswordCredentials) {
    let { data } = await this.ref.request.post(
      this.ref.PREFIX.AUTH + '/token?grant_type=password',
      {
        props,
      }
    )
    if (isBrowser()) {
      if (data.err) url = [`#error=${data.err}`]
      else {
        var url = []
        for (var el in data) url.push(`${el}=${data[el]}`)
      }
      location.href = '#' + url.join('&')
    } else {
      if (data.err) return { data: { user: null, session: null }, error: { message: data.err } }
      this._setUserData(data)
      return this.getUser(data.access_token)
    }
  }
  public async signUp(props: PasswordCredentials) {
    let { data } = await this.ref.request.post(this.ref.PREFIX.AUTH + '/signup', {
      props,
    })

    if (data.err) url = [`#error=${data.err}`]
    else {
      var url = []
      for (var el in data) url.push(`${el}=${data[el]}`)
    }
    if (data.waiting) url = [`#waiting`]
    location.href = '#' + url.join('&')
  }
  public async signInWithProvider(props: ProviderProps) {
    // generateId :: Integer -> String
    const generateId = (len?: number) => {
      const dec2hex = (dec: number) => {
        return dec.toString(16).padStart(2, '0')
      }
      var arr = new Uint8Array((len || 40) / 2)
      window.crypto.getRandomValues(arr)
      return Array.from(arr, dec2hex).join('')
    }
    if (props.config?.callback) {
      return (location.href = `${this.ref.URI}${this.ref.PREFIX.AUTH}/authorize?provider=${props.provider}&callback=${props.config.callback}`)
    }
    const platform = await Capacitor.getPlatform()
    const getSession = async (uid: string) => {
      let { data } = await this.ref.request.post(this.ref.PREFIX.AUTH + '/session', {
        sid: uid,
      })
      if (isBrowser()) {
        if (data?.uri) {
          location.hash = data.uri
          Browser.close()
        } else
          setTimeout(() => {
            console.log('x')
            getSession(uid)
          }, 1000)
      }
      if (platform === 'ios' || platform === 'android') {
        const uid = generateId()
        getSession(uid)
        Browser.open({
          url: `${this.ref.URI}${this.ref.PREFIX.AUTH}/authorize?provider=${props.provider}&sid=${uid}`,
        })
      } else {
        var win = window.open(
          `${this.ref.URI}${this.ref.PREFIX.AUTH}/authorize?provider=${props.provider}`,
          '_blank'
        )
        window.addEventListener(
          'message',
          (event) => {
            return (location.hash = event.data)
          },
          false
        )
      }
    }
    //return true

    return false
  }
  public async updateUser(props: any) {
    const urlParams = new URLSearchParams(window.location.search)
    const token = urlParams.get('token')
    if (token) props.token = token
    let { data } = await this.ref.request.put(this.ref.PREFIX.AUTH + '/user', props)
    return data
  }
  public onAuthStateChange(fn: Function) {
    if (isBrowser()) {
      var HashChange = () => {
        if (location.href.indexOf('access_token') > -1) {
          var params = getHashParams()
          window.location.hash = ''
          localStorage.setItem('omneedia.auth.token', params.access_token)
          localStorage.setItem('omneedia.auth.refresh_token', params.refresh_token)
          return fn('SIGNED_IN', params)
        }
        if (location.href.indexOf('#waiting') > -1) {
          window.location.hash = ''
          return fn('WAITING_FOR_CONFIRMATION', {})
        }
        if (location.href.indexOf('#logout') > -1) {
          localStorage.removeItem('omneedia.auth.token')
          localStorage.removeItem('omneedia.auth.refresh_token')
          window.location.hash = ''
          return fn('SIGNED_OUT', {})
        }
        if (location.href.indexOf('#error') > -1) {
          var token = decodeURIComponent(location.href).split('#error=')[1]
          fn('ERROR', token)
          window.location.hash = ''
          return false
        }
        if (location.href.indexOf('#new_token') > -1) {
          var token = decodeURIComponent(location.href).split('#new_token=')[1]
          fn('REFRESH_TOKEN', localStorage.getItem('omneedia.auth.token'))
          window.location.hash = ''
          return false
        }

        if (localStorage.getItem('omneedia.auth.token')) {
          fn('AUTHENTICATED', localStorage.getItem('omneedia.auth.token'))
        }
      }
      window.addEventListener('hashchange', HashChange)
      window.addEventListener('load', HashChange)
      HashChange()
    } else {
      // cookie based auth
    }
  }
  public async resetPasswordForEmail(props: EmailResetProps) {
    let { data } = await this.ref.request.post(this.ref.PREFIX.AUTH + '/recover', props)

    if (data.err) url = [`error=${data.err}`]
    else {
      var url = []
      for (var el in data) url.push(`${el}=${data[el]}`)
    }
    if (data.waiting) url = [`waiting`]
    location.href = '#' + url.join('&')
  }
  public async signInWithEmail(props: MailPhoneProps) {
    let { data } = await this.ref.request.post(this.ref.PREFIX.AUTH + '/magiclink', props)
    if (data.err) url = [`error=${data.err}`]
    else {
      var url = []
      for (var el in data) url.push(`${el}=${data[el]}`)
    }
    if (data.waiting) url = [`waiting`]
    location.href = '#' + url.join('&')
  }
  public getSession(): boolean | any {
    var session = false
    if (isBrowser()) {
      if (localStorage.getItem('omneedia.auth.token')) {
        let token: string | null = localStorage.getItem('omneedia.auth.token')!
        session = parseJwt(token)
      }
    } else {
      // use cookie
    }
    return {
      getUser: (): any => {
        return session
      },
    }
  }
  public session = this.getSession
  public async getUser(token?: string | null) {
    if (token) {
      if (isBrowser()) {
        try {
          token = urlBase64Decode(token)
          return token
        } catch (e) {
          return null
        }
      } else {
        return { data: { user: urlBase64Decode(token), session: token }, error: null }
      }
    }
    let { data } = await this.ref.request.get(this.ref.PREFIX.AUTH + '/user')

    if (data === false) {
      if (isBrowser()) {
        localStorage.removeItem('omneedia.auth.token')
        localStorage.removeItem('omneedia.auth.refresh_token')
      } else {
        // use cookie
        this.options.cookies.deleteAll()
      }
    }
    if (isBrowser()) return data
    else return { data: { user: data }, error: null }
  }
  public isAuthenticated() {
    if (isBrowser()) {
      if (window.localStorage.getItem('omneedia.auth.token')) return true
      else return false
    }
  }
  public async signOut() {
    if (isBrowser()) {
      await this.ref.request.get(this.ref.PREFIX.AUTH + '/signout')
      location.hash = '#logout'
      return
    } else {
      await this.ref.request.get(this.ref.PREFIX.AUTH + '/signout')
      this.options.cookies.setAll([
        {
          name: 'omneedia.auth.token',
          value: '',
          lifetime: 0,
          domain: '',
          path: '/',
          sameSite: 'lax',
        },
      ])
    }
  }
}