console.log("contentscript.js started!");

function extractUrlsAndFilenames() {
  console.log("contentscript.js: this is extractFileUrlsAndNames()");
  // get the correct frame
  let frame = document.querySelector("iframe.js-mail-content");

  // get all divs containing attachments
  let divs = frame.contentWindow.document.body.querySelectorAll(
    "div.samoware-mail-message__attach__item[attachment-ref]"
  );

  // loop over divs and extract attachment information
  let urlsAndFilenames = [];
  divs.forEach((div) => {
    let url = div.getAttribute("attachment-ref");
    let filename = div.getAttribute("file-name");

    // if filename is null, derive it from url
    if (!filename) {
      let splitUrl = url.split("/");
      filename = splitUrl[splitUrl.length - 1];
    }
    urlsAndFilenames.push({ url: url, filename: filename });
  });
  return urlsAndFilenames;
}

function clickPrintButton() {
  let printElement = document.querySelector(
    'li[ng-click="printMessage(selectedMessage)"]'
  );
  printElement.click();
}

const urlsAndFilenames = extractUrlsAndFilenames();
console.log(
  `contentscript.js: URLs and filenames extracted ->  ${JSON.stringify(
    urlsAndFilenames
  )}`
);

clickPrintButton();
console.log(`contentscript.js: clicked the print button`);

// this last statement is important – it's evaluation value is the return value for the background script
urlsAndFilenames;