import { UserBuilder } from "@/builders/UserBuilder";
import SessionHandler from "@/sides/server/SessionHandler";
import checkerUtils from "@/utils/checker.utils";
import config from "@/config.server.json";
const stripe = require('stripe')(config.stripe_private_token);
import Discount from "@/sides/server/Discount";
import { MailHandler } from "@/handler/MailHandler";
const { User, Session } = require('../../../../../models');

export default async function handler(req: any, res: any) {
    if (req.method !== "POST") return res.status(400).json({ message: "invalid_request" })

    try {
        const token = SessionHandler.getAuthorization(req);
        const { code, language, payment_id } = req.body;

        if (await checkerUtils.missingParameters(token, language, payment_id)) {
            return res.status(400).json({ message: "missing_parameters" });
        }

        const { success, user } = await SessionHandler.checkSession(token);

        if (success) {
            var discountcode = undefined;

            if (code != undefined) {
                discountcode = await Discount.getCode(code);
                if (discountcode == undefined)
                    return res.status(404).json({ message: 'discount_code_not_found' });
            }

            const profile = await user.getProfile();
            const hasSubscription = await profile.getSubscription() != undefined;

            if (!hasSubscription) {
                const discount_id = discountcode != undefined ? discountcode.id : undefined;
                const priceToPay = (config.price * (discountcode != undefined ? 1 - discountcode.reduction : 1));
                const amount = Math.round(100 * priceToPay);
                const subscription = await profile.subscribe(discount_id, priceToPay);
                if (!subscription)
                    return res.status(500).json({ message: 'subscription_failed' });

                try {
                    const charge = await stripe.charges.create({
                        amount,
                        currency: 'eur',
                        source: payment_id,
                        description: profile.id+" # "+profile.firstname + " - " + profile.lastname
                    });

                    MailHandler.sendMail(MailHandler.MailType.SUBSCRIPTION_SUCCESS, language, user.email);

                    return res.status(201).json({ message: 'subscription_success', subscription });
                } catch (err) {
                    subscription.destroy();
                    console.error(err)
                    return res.status(500).json({ message: 'subscription_failed' });
                }
            }
            return res.status(406).json({ message: 'you_are_already_subscribed' });
        }
        return res.status(401).json({ message: 'session_invalid' });
    } catch (error) {
        console.error(error);
        res.status(500).json({ message: 'internal_server_error' });
    }
}