Print Jobs API

{
  "JobId": "job_12345",
  "StationId": "STATION_001",
  "PrinterId": "PRINTER_001",
  "DocumentType": "ticket_venta",
  "Document": {
    "Number": "FAC-001234",
    "Date": "2024-01-15",
    "CustomerName": "John Doe",
    "Items": [
      {
        "Name": "Product A",
        "Quantity": 2,
        "Price": 10.50,
        "Total": 21.00
      }
    ],
    "Subtotal": 21.00,
    "Tax": 1.68,
    "Total": 22.68
  },
  "Images": [
    {
      "Id": "logo",
      "Base64": "iVBORw0KGgoAAAANSUhEUgAAAAUA...",
      "Align": "center",
      "WidthMm": 40
    }
  ],
  "Barcodes": [
    {
      "Type": "CODE128",
      "Value": "FAC-001234",
      "Height": 50,
      "Width": 2,
      "Hri": true,
      "ItemId": "item_001",
      "Name": "Product A",
      "Price": "$10.50"
    }
  ],
  "QRs": [
    {
      "Value": "https://example.com/invoice/001234",
      "Size": 6,
      "Align": "center"
    }
  ]
}

{
  "JobId": "job_12345",
  "Status": "DONE",
  "ErrorMessage": null
}

{
  "JobId": "job_12345",
  "Status": "ERROR",
  "ErrorMessage": "Printer PRINTER_001 not found in configuration"
}

const ws = new WebSocket('ws://localhost:7000/websocket/');

ws.onopen = () => {
  // Send print job
  const printJob = {
    JobId: `job_${Date.now()}`,
    StationId: 'STATION_001',
    PrinterId: 'PRINTER_001',
    DocumentType: 'ticket_venta',
    Document: {
      Number: 'FAC-001234',
      Date: new Date().toISOString(),
      Items: [
        { Name: 'Coffee', Quantity: 1, Price: 3.50, Total: 3.50 }
      ],
      Total: 3.50
    },
    Images: [],
    Barcodes: [],
    QRs: []
  };
  
  ws.send(JSON.stringify(printJob));
};

ws.onmessage = (event) => {
  const result = JSON.parse(event.data);
  
  // Check if this is a print job result
  if (result.JobId && result.Status) {
    if (result.Status === 'DONE') {
      console.log(`Print job ${result.JobId} completed successfully`);
    } else if (result.Status === 'ERROR') {
      console.error(`Print job ${result.JobId} failed: ${result.ErrorMessage}`);
    }
  }
};