// Always Compliant — Invoice Email Sender
// Paste this entire code into Google Apps Script

function doPost(e) {
  try {
    var data = JSON.parse(e.postData.contents);
    var options = {
      to:       data.to,
      subject:  data.subject,
      htmlBody: data.htmlBody || data.body,
      body:     data.body
    };
    if (data.cc && data.cc.trim())   options.cc = data.cc;
    if (data.replyTo)               options.replyTo = data.replyTo;
    GmailApp.sendEmail(data.to, data.subject, data.body || '', options);
    return ContentService
      .createTextOutput(JSON.stringify({status:'ok', message:'Email sent'}))
      .setMimeType(ContentService.MimeType.JSON);
  } catch(err) {
    return ContentService
      .createTextOutput(JSON.stringify({status:'error', message: err.toString()}))
      .setMimeType(ContentService.MimeType.JSON);
  }
}

// Test function — run manually to check permissions
function doGet(e) {
  return ContentService
    .createTextOutput(JSON.stringify({status:'ok', message:'Always Compliant Email API ready'}))
    .setMimeType(ContentService.MimeType.JSON);
}