const objectNotEmpty = require('./utility').objectNotEmpty;

const Cookies = require('../../lib/js-cookie');

const getLanguage = require('./language').getLanguage;

const GTM = require('./gtm').GTM;

const Client = require('./client').Client;

const url_for = require('./url').url_for;

const default_redirect_url = require('./url').default_redirect_url;

const LoggedInHandler = (function() {

'use strict';

const init = function() {

parent.window.is_logging_in = 1; // this flag is used in base.js to prevent auto-reloading this page

let redirect_url;

try {

const tokens = storeTokens();

let loginid = Cookies.get('loginid');

if (!loginid) { // redirected to another domain (e.g. github.io) so those cookie are not accessible here

const loginids = Object.keys(tokens);

let loginid_list = '';

loginids.map(function(id) {

loginid_list += (loginid_list ? '+' : '') + id + ':' + (/^V/i.test(id) ? 'V' : 'R') + ':E'; // since there is not any data source to check, so assume all are enabled, disabled accounts will be handled on authorize

});

loginid = loginids[0];

// set cookies

Client.set_cookie('loginid', loginid);

Client.set_cookie('loginid_list', loginid_list);

}

Client.set_cookie('login', tokens[loginid]);

// set flags

if (!$('body').hasClass('BlueTopBack')) localStorage.setItem('risk_classification', 'check');

Client.set_check_tnc();

GTM.set_login_flag();

// redirect url

redirect_url = sessionStorage.getItem('redirect_url');

sessionStorage.removeItem('redirect_url');

} catch (e) { console.log('storage is not supported'); }

// redirect back

let set_default = true;

if (redirect_url) {

const do_not_redirect = ['reset_passwordws', 'lost_passwordws', 'change_passwordws', 'home'];

const reg = new RegExp(do_not_redirect.join('|'), 'i');

if (!reg.test(redirect_url) && url_for('') !== redirect_url) {

set_default = false;

}

}

if (set_default) {

redirect_url = default_redirect_url();

const lang_cookie = Cookies.get('language'),

language = getLanguage();

if (lang_cookie && lang_cookie !== language) {

redirect_url = redirect_url.replace(new RegExp('\/' + language + '\/', 'i'), '/' + lang_cookie.toLowerCase() + '/');

}

}

document.getElementById('loading_link').setAttribute('href', redirect_url);

window.location.href = redirect_url;

};

const storeTokens = function() {

// Parse hash for loginids and tokens returned by OAuth

const hash = (/acct1/i.test(window.location.hash) ? window.location.hash : window.location.search).substr(1).split('&'); // to maintain compatibility till backend change released

const tokens = {};

for (let i = 0; i < hash.length; i += 2) {

const loginid = getHashValue(hash[i], 'acct'),

token = getHashValue(hash[i + 1], 'token');

if (loginid && token) {

tokens[loginid] = token;

}

}

if (objectNotEmpty(tokens)) {

Client.set_value('tokens', JSON.stringify(tokens));

}

return tokens;

};

const getHashValue = function(source, key) {

const match = new RegExp('^' + key);

return source && source.length > 0 ? (match.test(source.split('=')[0]) ? source.split('=')[1] : '') : '';

};

return {

init: init,

};

})();

module.exports = {

LoggedInHandler: LoggedInHandler,

};