email2inter.js

// Improved email regex
const emailRegex = /\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,7}\b/g;

// Set to keep track of processed nodes
const processedNodes = new WeakSet();

// Function to create Intercom search URL
function createIntercomSearchUrl(email) {
  return new Promise((resolve) => {
    try {
      chrome.storage.local.get(['intercomAppCode'], function(result) {
        if (chrome.runtime.lastError) {
          console.error('Chrome runtime error:', chrome.runtime.lastError);
          resolve(null);
          return;
        }
        if (result.intercomAppCode) {
          const appCode = result.intercomAppCode;
          const encodedEmail = encodeURIComponent(email);
          resolve(`https://app.intercom.io/a/inbox/${appCode}/inbox/search?query=${encodedEmail}`);
        } else {
          console.error('Intercom App Code not set. Please set it in the extension popup.');
          resolve(null);
        }
      });
    } catch (error) {
      console.error('Error accessing chrome API:', error);
      resolve(null);
    }
  });
}

// Function to make emails clickable
function makeEmailsClickable() {
  const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT, null, false);
  const nodesToReplace = [];

  while (walker.nextNode()) {
    const node = walker.currentNode;
    if (node.nodeType === Node.TEXT_NODE && !processedNodes.has(node) && node.textContent.match(emailRegex)) {
      nodesToReplace.push(node);
    }
  }

  for (const node of nodesToReplace) {
    if (!node.parentNode) continue;

    const fragment = document.createDocumentFragment();
    let lastIndex = 0;
    const matches = node.textContent.matchAll(emailRegex);
    for (const match of matches) {
      fragment.appendChild(document.createTextNode(node.textContent.slice(lastIndex, match.index)));
      const link = document.createElement('a');
      link.href = '#';
      link.textContent = match[0];
      link.style.cssText = 'color: blue; text-decoration: underline; cursor: pointer;';
      link.title = "Click to search in Intercom";
      link.addEventListener('click', (e) => handleEmailClick(e, match[0]));
      fragment.appendChild(link);
      lastIndex = match.index + match[0].length;
    }
    fragment.appendChild(document.createTextNode(node.textContent.slice(lastIndex)));
    
    if (node.parentNode) {
      node.parentNode.replaceChild(fragment, node);
      processedNodes.add(fragment);
    }
  }
}

// Function to handle email click
function handleEmailClick(e, email) {
  e.preventDefault();
  e.stopPropagation(); // Prevent event bubbling
  
  createIntercomSearchUrl(email).then(url => {
    if (url) {
      chrome.runtime.sendMessage({action: "openIntercomTab", url: url});
    } else {
      chrome.runtime.sendMessage({action: "openPopup"});
    }
  }).catch(err => {
    console.error('Error:', err);
  });
}

// Debounce function
function debounce(func, wait) {
  let timeout;
  return function(...args) {
    clearTimeout(timeout);
    timeout = setTimeout(() => func.apply(this, args), wait);
  };
}

// Debounced version of makeEmailsClickable
const debouncedMakeEmailsClickable = debounce(makeEmailsClickable, 300);

// Initialize extension after window load and a delay
window.addEventListener('load', function() {
  setTimeout(() => {
    console.log('Initializing Email to Intercom Linker');
    makeEmailsClickable();

    // Set up MutationObserver
    const observer = new MutationObserver(mutations => {
      if (mutations.some(mutation => mutation.type === 'childList' && mutation.addedNodes.length > 0)) {
        debouncedMakeEmailsClickable();
      }
    });

    observer.observe(document.body, { childList: true, subtree: true });
  }, 2000); // 2 second delay after window load
});