const AFFILAE_TRACKING = 'https://lb.affilae.com/';
const PROGRAM_ID = 'YOUR_PID';
const KEY = 'YOUR_KEY';

// https://shopify.dev/docs/api/web-pixels-api/standard-events/checkout_completed
analytics.subscribe('checkout_completed', async (event) => {
    try {
        const aeCids = await browser.cookie.get('_affilae' + PROGRAM_ID);
        const checkout = event.data.checkout;

        const discountCodes = checkout.discountApplications.map((discount) => {
            if (discount.type === 'DISCOUNT_CODE') {
                return discount.title;
            }
        });
        const productIds = checkout.lineItems.map((line) => {
            return line.product.variant.product.id;
        });

        const queryParams = new URLSearchParams({
            key: KEY,
            id: checkout.order.id,
            amount: checkout.subtotalPrice.amount,
            payment: 'online',
            voucher: discountCodes.join(';') ?? '',
            product: productIds.join(';') ?? '',
            currency: checkout.subtotalPrice.currencyCode,
            customer: clientId,
            cids: aeCids,
            v: 'shopify',
        });

        const aeConvUrl = `${AFFILAE_TRACKING}?${queryParams.toString()}`;

        fetch(aeConvUrl, {
            method: 'GET',
            keepalive: true,
        });
    }
    catch (error) {
        console.error('checkout issue:', error);
    }
})