/** 
* Fetches an embed token for a customer user and generates an embed URL.
*
* This function demonstrates how to call the GUIDEcx API to obtain an embed token 
* for a specific customer user, then constructs an embed URL using the token. 
* The URL is intended for use in an iframe to embed GUIDEcx functionality in your application.
*
* @returns {Promise<string>} A promise that resolves to the embed URL.
*/ 
async function fetchAndGenerateEmbedUrl() {
  const apiUrl = 'https://api.guidecx.com/api/v2/users/embed-token';
  // Replace this with the actual email of the customer user.
  const customerUserEmail = "customer@example.com";

  const requestBody = { 
    customerUserEmail: customerUserEmail
  };
 
  const requestOptions = {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer YOUR_ACCESS_TOKEN', // Replace YOUR_ACCESS_TOKEN with your actual Open API organization token found in the Open API tab of your organization settings.
      'Content-Type': 'application/json'
    },
    body: JSON.stringify(requestBody)
  };

  try {
    const response = await fetch(apiUrl, requestOptions);
    if (!response.ok) {
      throw new Error(`API request failed with status: ${response.status}`);
    } 

     const responseData = await response.json();
     if (!responseData.embedToken || responseData.projects.length === 0) {
       throw new Error('Invalid response data: Missing embedToken or projects.');
     }

  /**
  * Construct the embed URL using the embed token and project ID.
  * Using the value of responseData.projects[0].id assumes you want to embed the first project that is returned in the list.
  * Adjust this value as needed if you have customers that belong to multiple projects.
  */
  const embedUrl = `https://app.guidecx.com/auth/customer-login/sso?token=${responseData.embedToken}&projectId=${responseData.projects[0].id}&page=TODAY&email=${customerUserEmail}`;
  return embedUrl;
 } catch (error) {
  console.error('Error fetching embed token:', error);
  throw error; // Rethrow to allow error handling by the caller.
 }
}

// Example usage
async function runExample() {
  try {
    const embedUrl = await fetchAndGenerateEmbedUrl();
    console.log('Embed URL:', embedUrl);
    // Embed the URL in an iframe or handle it as needed.
  } catch (error) {
    console.error('Failed to generate embed URL:', error);
  }
}

// Run the example
runExample();