WebScannerApp/index2.html at main · MrTools225/WebScannerApp · GitHub

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<!DOCTYPE html>
<html lang="fr">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
  <title>Scanner de Tickets</title>
  <script src="https://unpkg.com/html5-qrcode@2.3.8/minified/html5-qrcode.min.js"></script>
  <style>
    body { font-family: Arial, sans-serif; padding: 20px; text-align: center; background: #f0f0f0; }
    h1 { font-size: 1.5rem; margin-bottom: 1rem; }
    #result { margin-top: 1rem; font-size: 1.3rem; font-weight: bold; }
    #result.valid { color: green; }
    #result.invalid { color: red; }
    #reader { display: none; margin: auto; }
    #scan-btn { padding: 10px 20px; font-size: 1rem; cursor: pointer; }
  </style>
</head>
<body>
  <h1>Scanner de Tickets</h1>
  <button id="scan-btn">Scan</button>
  <div id="reader" style="width: 300px;"></div>
  <div id="result">En attente du scan...</div>

  <script>
    const validTickets = new Set();
    fetch('tickets.json')
      .then(response => response.json())
      .then(data => data.forEach(t => validTickets.add(t)))
      .catch(err => console.error("Erreur chargement JSON", err));

    const scannedTickets = new Set();
    let scannerStarted = false;
    let html5QrCode;

    function onScanSuccess(decodedText) {
      if (scannedTickets.has(decodedText)) {
        document.getElementById('result').innerText = 'Ticket déjà scanné';
        document.getElementById('result').className = 'invalid';
        return;
      }
      scannedTickets.add(decodedText);

      if (validTickets.has(decodedText)) {
        document.getElementById('result').innerText = '✅ Ticket Valide';
        document.getElementById('result').className = 'valid';
      } else {
        document.getElementById('result').innerText = '❌ Ticket Invalide';
        document.getElementById('result').className = 'invalid';
      }
      // Optionally stop scanner after a scan
      if (html5QrCode) {
        html5QrCode.stop();
        document.getElementById('reader').style.display = 'none';
        scannerStarted = false;
      }
    }

    document.getElementById('scan-btn').addEventListener('click', function() {
      if (scannerStarted) return;
      document.getElementById('reader').style.display = 'block';
      html5QrCode = new Html5Qrcode("reader");
      Html5Qrcode.getCameras().then(cameras => {
        if (cameras && cameras.length) {
          // Try to select the rear camera if available
          const rearCamera = cameras.find(cam => cam.label.toLowerCase().includes('back') || cam.label.toLowerCase().includes('rear')) || cameras[0];
          html5QrCode.start(
            rearCamera.id,
            { fps: 10, qrbox: 250 },
            onScanSuccess
          ).catch(err => {
            document.getElementById('result').innerText = 'Erreur accès caméra: ' + err;
            document.getElementById('result').className = 'invalid';
            document.getElementById('reader').style.display = 'none';
            scannerStarted = false;
          });
          scannerStarted = true;
        } else {
          document.getElementById('result').innerText = 'Aucune caméra détectée';
          document.getElementById('result').className = 'invalid';
        }
      }).catch(err => {
        document.getElementById('result').innerText = 'Erreur détection caméra: ' + err;
        document.getElementById('result').className = 'invalid';
      });
    });
  </script>
</body>
</html>