const express = require('express');
const ThermalPrinter = require('node-thermal-printer').printer;
const Types = require('node-thermal-printer').types;
const printer = require('printer');

const app = express();
const port = 3000;

// Middleware to serve static files (HTML)
app.use(express.static('public'));

// Setup thermal printer
const thermalPrinter = new ThermalPrinter({
  type: Types.STAR,   // Replace with the correct printer type (e.g., STAR, EPSON)
  interface: 'printer:TSP100', // Printer name as recognized by the OS
  driver: printer, // Use node-printer driver
});

// Test print function
app.post('/test-print', async (req, res) => {
  try {
    // Initialize the printer
    const isConnected = await thermalPrinter.isPrinterConnected();
    if (!isConnected) {
      return res.status(500).json({ message: 'Printer not connected' });
    }

    // Print a test line
    thermalPrinter.println('This is a test print');
    thermalPrinter.cut();
    
    // Execute the print job
    await thermalPrinter.execute();
    
    res.json({ message: 'Print Success' });
  } catch (error) {
    console.error('Print Error:', error);
    res.status(500).json({ message: 'Print Error', error: error.message });
  }
});

// Start the server
app.listen(port, () => {
  console.log(`Server running at http://localhost:${port}`);
});