content.js

// scraping data from web pages
chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
    if (request.action === "clipPage") {
        scrapePageForAssignmentInfo();
    }
  });
  
  function extractAssignmentFromURL(url) {
    // Extract the last segment of the URL
    const urlPattern = /\/([^\/]+)\/?$/;
    const match = url.match(urlPattern);
    if (match) {
      // Check if the extracted segment matches typical assignment patterns
      const assignmentPattern = /^(?:assignment|homework|hw|project|projects|proj|final_proj|final_project|quiz|exam|exams)\s*#?\d+/i;
      const segment = match[1].replace(/-/g, ' ');
      if (assignmentPattern.test(segment)) {
        return segment;
      }
    }
    return null;
  }
  
  function extractAssignmentName(text) {
    const assignmentNamePattern = /(?:assignment|homework|hw|project|proj|final_proj|final_project|projects|quiz|exam|exams)\s*#?\d+/i;
    const match = text.match(assignmentNamePattern);
    return match ? match[0] : null;
  }
  
  function extractDueDate(text) {
    // Revised regular expression to match various due date formats including "Jan 27 at 7:30am"
    const dueDatePattern = /(\b(?:jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)[a-z]*\.?\s*\d{1,2}(?:\s*(?:@|at)?\s*\d{1,2}:\d{2}\s*[apAP][mM]))|(\d{1,2}:\d{2}\s*[apAP][mM]\s*on\s*(?:mon|tue|wed|thu|fri|sat|sun|monday|tuesday|wednesday|thursday|friday|saturday|sunday),?\s*(?:jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)[a-z]*\.?\s*\d{1,2})/i
  
    const match = text.match(dueDatePattern);
    return match ? match[0] : null;
  }
  
  function extractCourseName(text) {
    const courseNamePattern = /\b(CIT|CIS)\s?\d{3,4}\b/i;
    const match = text.match(courseNamePattern);
    return match ? match[0] : null;
  }
  
  function scrapePageForAssignmentInfo() {
    // First, try to extract assignment name from URL
    const assignmentNameFromURL = extractAssignmentFromURL(window.location.href);
  
    // If assignment name is not found in URL, scrape the page
    const assignmentName = assignmentNameFromURL || extractAssignmentName(document.body.innerText);
    const dueDate = extractDueDate(document.body.innerText);
    const courseName = extractCourseName(document.body.innerText);
    const url = window.location.href;
  
  
    // Log the results
    console.log('Assignment Name:', assignmentName);
    console.log('Due Date:', dueDate);
    console.log('Course Name:', courseName);
    console.info('url: ', url);
  
    // Send the scraped data to the background script if any information is found
    if (assignmentName || dueDate || courseName) {
      const message = {
          action: "processData",
          data: { assignmentName, dueDate, courseName, url }
      };
      chrome.runtime.sendMessage(message, function(response) {
          if (chrome.runtime.lastError) {
              console.error("Error sending message:", chrome.runtime.lastError.message);
          } else {
              console.log("Message sent from content.js:", message);
              if (response) {
                  console.log("Response received:", response);
              }
          }
      });
  } else {
      console.log("No relevant information found to send.");
  }
  
    
  }
  
  // Execute the scrape function when the page loads
  // window.onload = scrapePageForAssignmentInfo;