AI Receptionist

You are a professional receptionist for Acme Corp. Your job is to:
1. Greet callers warmly
2. Understand why they're calling
3. Route them to the appropriate department or take a message

Departments:
- Sales: For new customers or pricing inquiries
- Support: For existing customers with issues
- Billing: For payment or invoice questions
- HR: For job inquiries

Always be polite, professional, and efficient. If unsure, offer to take a message.

app.post('/webhook/receptionist', async (req, res) => {
  const { tool_name, parameters, call_id } = req.body;
  
  switch (tool_name) {
    case 'transfer_call':
      // Transfer to department's hunt group
      const extensions = {
        sales: 'sip:sales@pbx.example.com',
        support: 'sip:support@pbx.example.com',
        billing: 'sip:billing@pbx.example.com',
        hr: 'sip:hr@pbx.example.com'
      };
      await sip4ai.transfer(call_id, extensions[parameters.department]);
      return res.json({ success: true, message: `Transferring to ${parameters.department}` });
      
    case 'take_message':
      // Save to database and notify via Slack/email
      await db.messages.create(parameters);
      await slack.notify(`New message from ${parameters.caller_name}: ${parameters.message}`);
      return res.json({ success: true, message: 'Message recorded' });
      
    case 'lookup_employee':
      const employee = await db.employees.findByName(parameters.name);
      return res.json({ 
        found: !!employee,
        extension: employee?.extension,
        department: employee?.department
      });
  }
});