import * as jwtDecode from 'jwt-decode'
import { ThunkAction } from 'redux-thunk'
import { createTokens } from './createTokens'
import { getTokens, removeTokens } from './localStorage'
import { refreshTokens } from './refreshTokens'

export const AUTH_INIT = 'AUTH_INIT'
export const AUTH_LOGIN = 'AUTH_LOGIN'
export const AUTH_LOGOUT = 'AUTH_LOGOUT'
export const AUTH_REFRESH = 'AUTH_REFRESH'

export function authInit() {
  return { type: AUTH_INIT }
}

export function authLogin(username: string, password: string): ThunkAction<Promise<boolean>, any, any> {
  return async dispatch => {
    const result = await createTokens(username, password)
    const tokens = getTokens()
    if (result && tokens.access) {
      const nextPrincipal = jwtDecode<object>(tokens.access)
      dispatch({ type: AUTH_LOGIN, principal: nextPrincipal, tokens })
    }
    return result
  }
}

export function authLogout(): ThunkAction<any, any, any> {
  return async dispatch => {
    removeTokens()
    dispatch({ type: AUTH_LOGOUT })
  }
}

export function authRefresh(): ThunkAction<Promise<boolean>, any, any> {
  return async dispatch => {
    const result = await refreshTokens()
    const tokens = getTokens()
    if (result && tokens.access) {
      const nextPrincipal = jwtDecode<object>(tokens.access)
      dispatch({ type: AUTH_REFRESH, principal: nextPrincipal, tokens })
    }
    return result
  }
}