import '@babel/polyfill'
import Vue from 'vue'
import axios from 'axios'
import VueAxios from 'vue-axios'
import VueVimeoPlayer from 'vue-vimeo-player'
import apolloClientFactory from './graphql/client'
import VueApollo from 'vue-apollo'
import App from './App'
import router from './router'
import store from '@/store/index'
import VueScrollTo from 'vue-scrollto';
import VueAnalytics from 'vue-analytics';
import {Validator, install as VeeValidate} from 'vee-validate/dist/vee-validate.minimal.esm.js';
import {required, min} from 'vee-validate/dist/rules.esm.js';
import veeDe from 'vee-validate/dist/locale/de';
import {dateFilter} from './filters/date-filter';
import autoGrow from '@/directives/auto-grow'
import clickOutside from '@/directives/click-outside'
import ME_QUERY from '@/graphql/gql/meQuery.gql';

Vue.config.productionTip = false;

// TODO: Move into a separate project as a plugin
//
function getRidOfEdges(collection) {
  if (typeof collection === 'object' && collection && !Array.isArray(collection)) {
    let newObj = {};
    for (const k in collection) {
      if (k === 'edges') {
        return collection.edges.map(edge => getRidOfEdges(edge.node));
      } else {
        newObj[k] = getRidOfEdges(collection[k]);
        if (newObj[k]) {
          // delete newObj[k]['__typename']
        }
      }
    }
    return newObj
  } else {
    return collection
  }
}

Object.defineProperty(Vue.prototype, '$getRidOfEdges', {value: getRidOfEdges});

Vue.use(VueApollo);
Vue.use(VueAxios, axios);
Vue.use(VueVimeoPlayer);

Vue.use(VueScrollTo, {
  duration: 500,
  easing: 'ease-out',
  offset: -50
});

if (process.env.GOOGLE_ANALYTICS_ID) {
  Vue.use(VueAnalytics, {
    id: process.env.GOOGLE_ANALYTICS_ID,
    router
  });
  console.log(process.env.GOOGLE_ANALYTICS_ID);
}

Vue.directive('click-outside', clickOutside);
Vue.directive('auto-grow', autoGrow);

const publicApolloClient = apolloClientFactory('/api/graphql-public/');
const privateApolloClient = apolloClientFactory('/api/graphql/');

const apolloProvider = new VueApollo({
  clients: {
    publicClient: publicApolloClient
  },
  defaultClient: privateApolloClient
});

Validator.extend('required', required);
Validator.extend('min', min);

const dict = {
  custom: {
    oldPassword: {
      required: 'Dein aktuelles Passwort fehlt'
    },
    newPassword: {
      required: 'Dein neues Passwort fehlt',
      min: 'Das neue Passwort muss mindestens 8 Zeichen lang sein'
    }
  }
};

Validator.localize('de', veeDe)
Validator.localize('de', dict)
// https://github.com/baianat/vee-validate/issues/51
Validator.extend('strongPassword', {
  getMessage: field => 'Das Passwort muss Grossbuchstaben, Zahlen und Sonderzeichen beinhalten',
  validate: value => {
    const strongRegex = /^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!@#$%^&*?(),.":{}|<>+])(?=.{8,})/;
    return strongRegex.test(value);
  }
});

Validator.extend('email', {
  getMessage: field => 'Bitte geben Sie eine gülitge E-Mail an',
  validate: value => {
    const emailRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+$/;
    return emailRegex.test(value);
  }
});

Vue.use(VeeValidate, {
  locale: 'de'
});

Vue.filter('date', dateFilter);

/* guards */

function getCookieValue(cookieName) {
  // https://stackoverflow.com/questions/5639346/what-is-the-shortest-function-for-reading-a-cookie-by-name-in-javascript
  let cookieValue = document.cookie.match('(^|[^;]+)\\s*' + cookieName + '\\s*=\\s*([^;]+)');
  return cookieValue ? cookieValue.pop() : '';
}

function loginRequired(to) {
  // public pages have the meta.public property set to true
  return !to.hasOwnProperty('meta') || !to.meta.hasOwnProperty('public') || !to.meta.public;
}

function unauthorizedAccess(to) {
  return loginRequired(to) && getCookieValue('loginStatus') !== 'true';
}

function redirectStudentsWithoutClass() {
  return privateApolloClient.query({
    query: ME_QUERY,
  }).then(({data}) => data.me.schoolClasses.edges.length === 0 && data.me.permissions.length === 0);
}

router.beforeEach(async (to, from, next) => {
  // handle logout
  if (to.path === '/logout') {
    privateApolloClient.resetStore();
    next({name: 'login'});
    return
  }

  if (unauthorizedAccess(to)) {
    const redirectUrl = `/login?redirect=${to.path}`;
    next(redirectUrl);
    return
  }

  if (to.name !== 'noClass' && loginRequired(to) && await redirectStudentsWithoutClass()) {
    next({name: 'noClass'})
    return
  }

  next();
});

/* eslint-disable no-new */
new Vue({
  el: '#app',
  store,
  router,
  provide: apolloProvider.provide(),
  render: h => h(App)
});