background.js

// Function to convert image to base64
async function getBase64Image(imageUrl) {
  try {
    const response = await fetch(imageUrl, {
      mode: 'cors',
      credentials: 'omit'
    });
    const blob = await response.blob();
    return new Promise((resolve, reject) => {
      const reader = new FileReader();
      reader.onloadend = () => resolve(reader.result);
      reader.onerror = reject;
      reader.readAsDataURL(blob);
    });
  } catch (error) {
    throw new Error('Failed to fetch image');
  }
}

// Listen for messages from content script
chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
  if (request.type === 'getBase64Image') {
    getBase64Image(request.imageUrl)
      .then(base64Data => sendResponse({ success: true, base64Data }))
      .catch(error => sendResponse({ success: false, error: error.message }));
    return true; // Required to use sendResponse asynchronously
  }
});