const scrapTheItems = require("./scraptheitems");
const convertToDate = require("./convertToDate");
const sgMail = require("@sendgrid/mail");
// should be process.env.SENDGRID_API_KEY
sgMail.setApiKey(
  "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"
);

async function sendNotification(marketAlert) {
  const { id, email, olx_url, last_date } = marketAlert;
  let url =
    "https://www.olx.ba/pretraga?" + olx_url + "&sort_order=desc&sort_po=datum";
  let newItems = await scrapTheItems(url);
  let lastDate = newItems.length && newItems[0].date;
  let message =
    newItems.length &&
    newItems.reduce(
      (mes, item) => mes + `<strong>${item.url} i  ${item.price}</strong>`,
      ""
    );
  const msg = {
    to: email,
    from: "test@example.com",
    subject: "Market Alert",
    text: "New items on olx",
    html: message
  };
  if (message) {
    await sgMail.send(msg);
    return { id, date: String(convertToDate(lastDate)) };
  }
}
module.exports = sendNotification;