script.js

class Course {
  constructor(name, times, dates) {
    this.name = name;
    this.times = times;
    this.dates = dates;
  }
}

function insertScript1() {
  chrome.tabs.query({
    active: true,
    currentWindow: true
  }, tabs => {
    chrome.scripting.executeScript({
      target: {
        tabId: tabs[0].id
      },
      function: getClasses
    })
  })
  window.close();
}

function insertScript2() {
  chrome.tabs.query({
    active: true,
    currentWindow: true
  }, tabs => {
    chrome.scripting.executeScript({
      target: {
        tabId: tabs[0].id
      },
      function: mainFunct
    })
  })
  window.close();
}


document.getElementById('buttonGather').addEventListener('click', insertScript1)
document.getElementById('buttonGenerate').addEventListener('click', insertScript2)

function webScrapeCN() {
  document.querySelectorAll('.CrsOpen > table a')[1].textContent;
}




function getClasses() {
  var regsht = [];
  var numCourses = 0;
  for (let i = 2; i < (document.querySelectorAll('#grvFirstChoices > tbody > tr').length + 1); i++) {
    regsht.push(document.querySelectorAll('#grvFirstChoices > tbody > tr:nth-child(' + i + ') > td:nth-child(4) > span')[0].textContent.trim());
    numCourses++;
    localStorage.setItem('' + (i - 2), '' + regsht[i - 2]);
  }
  localStorage.setItem('numCourses', numCourses);
  localStorage.setItem('i', '0');
}



function mainFunct() {
  var timesList = [];
  var datesList = [];
  var numSections = 0;
  var courses = [];


  function webScrapeTime() {
    for (let i = 0; i < (document.querySelectorAll('.MainTableRow').length); i++) {
      if (!isNaN(document.querySelectorAll('.MainTableRow tbody tr td:nth-child(2)')[i * 3].textContent)) {
        timesList.push(document.querySelectorAll('.MainTableRow tbody tr td:nth-child(4)')[i * 2].textContent);
        numSections++;
      } else {
        break;
      }
    }
  }

  function webScrapeDate() {
    for (let i = 0; i < (document.querySelectorAll('.MainTableRow').length); i++) {
      if (!isNaN(document.querySelectorAll('.MainTableRow tbody tr td:nth-child(2)')[i * 3].textContent)) {
        datesList.push(document.querySelectorAll('.MainTableRow tbody tr td:nth-child(3)')[i * 2].textContent);
      } else {
        break;
      }
    }
  }
  
  


  var searchBar = document.getElementById("Body_txtSearchKeyword");
  let i = localStorage.getItem('i');
  searchBar.value = localStorage.getItem('' + i)
  //document.querySelector('[name="ctl00$Body$ctl15"]').click();
  var name = localStorage.getItem('' + i-1);
  timesList.length = 0;
  datesList.length = 0;
  webScrapeTime();
  webScrapeDate();
  for (let j = 0; j < timesList.length; j++) {
    localStorage.setItem(name + '0' + j, timesList[j] + datesList[j]);
  }
  localStorage.setItem('i', parseInt(i) + 1 + '');
  localStorage.setItem(i + 'numSections', numSections);
  courses.push({
        "name": localStorage.getItem('' + i-1),
        "times": timesList,
        "dates": datesList,
        "noSections": numSections,
        "prtimes": [],
        "prdates": []
  })
  console.log(courses[1]);
}