const { expect } = require("@playwright/test");

// Common
function checkElement([element, index = 0]) {
  /* Because this function is passed to a page.evaluate, it can only
   * take a single argument; that's why we pass it an array.  It's so
   * easy to pass it a string by mistake that we check to make sure
   * the second argument is an integer and not a character from a
   * destructured string.
   */
  if (typeof index != "number") {
    throw Error("Assert failed: index not a number");
  }
  return document.querySelectorAll(element)[index] !== undefined;
}

// Length
function checkElementLengthEqualTo([element, count]) {
  return document.querySelectorAll(element).length == count;
}

// Text
async function checkTextContent(baseContent, checkData) {
  if (typeof checkData === 'string') checkData = new Array(checkData);

  const check = checkData.every(word => baseContent.includes(word));
  await expect(check).toBeTruthy();
}

exports.checkElement = checkElement;
exports.checkElementLengthEqualTo = checkElementLengthEqualTo;
exports.checkTextContent = checkTextContent;