import express from "express";
import nodemailer from "nodemailer";
import svgCaptcha from "svg-captcha";

import { sendResponse } from "../../../libs/format";

import { mailMethod, smtpConfig, mailTo, siteName } from "../../../config";
import ErrorEvent from "../../../libs/error";

// eslint-disable-next-line new-cap
const router = express.Router();

router
    .route("/")
    .get(async (req, res, next) => {
        try {
            const captcha = svgCaptcha.create({
                size: 4,
                noise: 2,
                color: true,
            });
            req.session.captcha = captcha.text;

            res.type("svg");
            return res.status(200).send(captcha.data);
        } catch (err) {
            return next(err);
        }
    })
    .post(async (req, res, next) => {
        try {
            if (mailMethod === "smtp") {
                const { email, name, message, captcha } = req.body;

                if (!captcha || captcha !== req.session.captcha) {
                    throw new ErrorEvent(
                        406,
                        "Captcha",
                        "Le captcha n'est pas valide"
                    );
                }

                if (!email || !message) {
                    throw new ErrorEvent(
                        406,
                        "Erreur de saisie",
                        "Le formulaire n'est pas correctement saisi"
                    );
                }

                const transporter = nodemailer.createTransport(smtpConfig);

                const text = `Bonjour,
    Vous venez de recevoir un nouveau message de ${name} (${email}) :

    ${message}
                    `;

                const data = await transporter.sendMail({
                    from: smtpConfig.auth.user,
                    to: mailTo,
                    subject: `${siteName} : Nouveau message`,
                    text,
                });

                const { messageId, response } = data;

                return sendResponse(req, res, { messageId, response });
            }

            throw new ErrorEvent(500, "Routeur", "Méthode non configurée");
        } catch (err) {
            return next(err);
        }
    });

export default router;