login

(function () {
    'use strict';

    class loginService {
        /*@ngInject*/
        constructor($resource, $q, BASE_URL, REST_PATH, LOGIN_PATH, LOGOUT_PATH, IS_LOGGED_IN_PATH, $httpParamSerializerJQLike, messages) {
            this.BASE_URL = BASE_URL;
            this.REST_PATH = REST_PATH;
            this.$q = $q;
            this.$resource = $resource;
            this.LOGIN_PATH = LOGIN_PATH;
            this.LOGOUT_PATH = LOGOUT_PATH;
            this.IS_LOGGED_IN_PATH = IS_LOGGED_IN_PATH;
            this.$httpParamSerializerJQLike = $httpParamSerializerJQLike;
            this.messages = messages;
            this.state = {};
            this.userStatus = { authorized: false };
        }


        initLoginResource() {
            const { $resource, BASE_URL, REST_PATH, LOGIN_PATH, $httpParamSerializerJQLike } = this;
            return $resource(BASE_URL + REST_PATH + LOGIN_PATH, null, {
                doLogin: {
                    method: 'POST',
                    params: {},
                    transformRequest:  (data) =>{
                        return $httpParamSerializerJQLike(data);
                    },
                    transformResponse:  (data, headersGetter, status)=> {
                        return {data: data, status: status};
                    },
                    headers: {'Content-Type': 'application/x-www-form-urlencoded'}
                }
            });
        }

        initIsLoggedInResource() {
            const { $resource, BASE_URL, REST_PATH , IS_LOGGED_IN_PATH } = this;
            return $resource(BASE_URL + REST_PATH + IS_LOGGED_IN_PATH, null, {
                isLoggedIn: {
                    method: 'GET'
                }
            });
        }

        initLogoutResource() {
            const { $resource, BASE_URL, REST_PATH , LOGOUT_PATH } = this;
            return $resource(BASE_URL + REST_PATH + LOGOUT_PATH, null, {
                doLogout: {
                    method: 'POST'
                }
            });
        }

       isUserAuthorized() {
            return this.$q((resolve, reject) => {
                this.initIsLoggedInResource().isLoggedIn().$promise
                    .then( (data)=> {
                        this.userStatus.authorized = true;
                        resolve(true);
                    },  (data) => {
                        this.userStatus.authorized = false;
                        reject(false);
                    });
            });
        }

        performLogin(name, password) {
            return this.$q( (resolve, reject) => {
                this.initLoginResource().doLogin({}, {
                    username: name,
                    password: password
                }).$promise.then( (data) => {
                    this.userStatus.authorized = true;
                    return resolve(data);
                },  (data) => {
                    this.userStatus.authorized = false;
                    return reject(data.data);
                });
            });
        }

        logOut() {
            return this.$q( (resolve, reject) => {
                this.initLogoutResource().doLogout().$promise
                    .then( (data) => {
                        this.userStatus.authorized = false;
                        return resolve(data);
                    }, (data) => {
                        this.userStatus.authorized = false;
                        return resolve(data); // resolve request anyway
                    });
            });
        }

    }

    angular.module('app.core')
        .factory('loginService',
            ['$resource', '$q', 'BASE_URL', 'REST_PATH', 'LOGIN_PATH', 'LOGOUT_PATH', 'IS_LOGGED_IN_PATH', '$httpParamSerializerJQLike', 'messages',
                ($resource, $q, BASE_URL, REST_PATH, LOGIN_PATH, LOGOUT_PATH, IS_LOGGED_IN_PATH, $httpParamSerializerJQLike, messages) =>
                    new loginService($resource, $q, BASE_URL, REST_PATH, LOGIN_PATH, LOGOUT_PATH, IS_LOGGED_IN_PATH, $httpParamSerializerJQLike, messages)
            ]);