const paypal = require('paypal-rest-sdk');
const express = require("express")
const router = express.Router()
const jwt = require('jsonwebtoken');
const User = require("../../schema/User");
const Sale = require('../../schema/Sale');


const JWT_SECRET = 'B!llHe$$';

paypal.configure({
    // mode: 'sandbox', // Use 'sandbox' for testing, 'live' for production
    // client_id: 'AcsLi6OLNFiHnuqZa5RHev1yDZeaf980ImsizcwmEsRLNfjgzkczaozN44DZTSUN_nCLX1ZknwrkZWCx',
    // client_secret: 'EB1qJJduOXEWqOpc7GfVW9Zz8TLy89cZdHsi7v0_tHKPdZaWEXpaJiRALkHiNR4B5Gkqybfeivhbf6V-',
    mode: 'live', // Use 'sandbox' for testing, 'live' for production
    client_id: 'ARwlw8cpJMUY3CZe_KNZqJepfFzPjGru8xu_tm4RSemT_sn11Ysmp75pDE35Egqn6ey0-esluykEeYJ6',
    client_secret: 'EGljsT1a06yKNErJ4oi2tHcqxFUrLt2BT4ZxKDfKHDmuM7MjhHS85Npgt-DP0lJfoVhjQKrTMyQrLJrE',
});

router.post('/create-payment', (req, res) => {
    try {
        // const { info } = req.body
        const user = req.user
        let totalAmount = 0;
        let totalCredits = 0;
        const items = user.cart.map((item) => {
            totalCredits += item.credits;
            totalAmount += item.price;
            return {
                "name": item.packageNo,
                "sku": "Package",
                "price": item.price,
                "currency": "USD",
                "quantity": 1
            }
        })
        const data = { items, totalAmount, totalCredits, user }
        const authtoken = jwt.sign(data, JWT_SECRET);
        var create_payment_json = {
            "intent": "sale",
            "payer": {
                "payment_method": "paypal"
            },
            "redirect_urls": {
                "return_url": `https://needapair.com/api/payment/success/${authtoken}`,
                "cancel_url": "https://needapair.com/api/payment/cancel"
                // "return_url": `http://localhost:8000/api/payment/success/${authtoken}`,
                // "cancel_url": "http://localhost:8000/api/payment/cancel"

            },
            "transactions": [{
                "item_list": {
                    "items": items
                },
                "amount": {
                    "currency": "USD",
                    "total": Number(totalAmount.toFixed(2))
                },
                "description": "This is the payment description."
            }]
        };
        console.log('create_payment_json', create_payment_json)
        console.log('totalAmount', totalAmount)
        // return
        paypal.payment.create(create_payment_json, function (error, payment) {
            if (error) {
                throw error;
            } else {
                for (let i = 0; i < payment.links.length; i++) {
                    if (payment.links[i].rel === "approval_url") {
                        res.redirect(payment.links[i].href);
                    }
                }
            }
        });
    } catch (error) {
        console.log(error)
        res.redirect(`/packages?error=${error.message}`)
    }
});

router.get("/success/:token", async (req, res) => {
    try {
        const token = req.params.token
        const packageData = jwt.verify(token, JWT_SECRET)
        console.log("packageData", packageData)
        const payerId = req.query.PayerID;
        const paymentId = req.query.paymentId;

        const execute_payment_json = {
            payer_id: payerId,
            transactions: [
                {
                    amount: {
                        currency: "USD",
                        total: Number(packageData.totalAmount.toFixed(2)),
                    },
                },
            ],
        };

        paypal.payment.execute(
            paymentId,
            execute_payment_json,
            async function (error, payment) {
                if (error) {
                    res.redirect(`/packages?error=Failed to Buy Package.`)
                    console.log(error.response);
                    throw error;
                } else {           
                    const query = req.query
                    const sale = await Sale.create({ payment, query, user: packageData.user.id })
                    const user = await User.findById(req.user.id)
                    user.credits += packageData.totalCredits
                    user.sale = sale._id
                    user.cart = []
                    await user.save()
                    res.redirect(`/packages?message=${packageData.totalCredits} Credits has been Purchased.`)
                }
            }
        );

    } catch (error) {
        console.log(error)
    }
});
router.get("/cancel", (req, res) => {
    console.log("Failed to but")
    res.redirect(`/packages?error=Failed to Buy Package.`)
});

module.exports = router