const express = require('express');
const path = require('path');
const Module = require('../../base/Module');
const RepositorySystem = require('../../systems/RepositorySystem');
const RoutingSystem = require('../../systems/RoutingSystem');
const MailSystem = require("../../systems/MailSystem");
const Config = require('../../systems/config');
const rp = require('request-promise');

/*let ConctactScheme = {
	fields: [
		{
			key: "firstname",
			type: "text"
		},
		{
			key: "lastname",
			type: "text"
		},
		{
			key: "phone",
			type: "text"
		},
		{
			key: "email",
			type: "text"
		},
		{
			key: "description",
			type: "text"
		}
	]
};
*/
class Conctact extends Module {
	constructor(){
		super('/', [2,0,3,4,0], 'Contact');
		//this.repository = RepositorySystem.create('Contact', ConctactScheme);
		this.router = express.Router();
		this.regVerify = new RegExp("^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$");
		
 		this.init();
	}
	init() {
		let routes = [
			{
				type: 'custom',
				method: 'post',
				endpoint: '/contact',
				customFn: (req,res) => {
					let data = req.body
					this.verifyInfo(data)
					.then(() => {
						var html = this.createMailBody(data)
						MailSystem.send(Config.MAIL_SENDER,Config.MAIL_SENDER,'Contact',html)
						.then((data) => {
							res.sendStatus(200)
						})
					})
					.catch((e) => {
						console.log(e);
						res.send(400)
					})
				}
			}
		];

		RoutingSystem.loadRoutes(routes, this.router);
	}


	verifyInfo(data) {
		let email = data.email;
		let recaptchaToken = data.captcha;
		return new Promise((resolve,reject) => {
			if(this.regVerify.test(email)){
				resolve();
			}else{
				reject();
			}
		}).then(() => {
			var options = {
				headers: {'content-type' : 'application/x-www-form-urlencoded'},
			    method: 'POST',
			    uri: 'https://www.google.com/recaptcha/api/siteverify',
			    body: "secret=" + Config.CAPTCHA_SECRET + "&response=" + recaptchaToken,
			    json: false // Automatically stringifies the body to JSON
			};
			return rp(options).then((res) => JSON.parse(res))
			.then((data) => {
				if( data.success === true || data.success === "true" )
					return data;
				throw new Error("Captcha is wrong");
			})
		})
	}

	createMailBody(data){
		let title = "<h2>Αίτημα Επικοινωνίας</h2>";
		let body = "<html>"+title+"<p> \
			Ο χρήστης "+data.firstname +" "+data.lastname+" \
			έγραψε:<br /><br />\
			"+data.description+"\
			<br /> Στοιχεία Επικοινωνίας: <br />\
			<ul>\
			<li> Τηλεφωνο :"+data.phone+"</li>\
			<li> e-mail: "+data.email+"</li>\
			</ul>\
			</p></html>";
		return body;
	}

}


module.exports = Conctact;