{% extends 'base.html.twig' %}

{% block title %}QR-Code Scanner{% endblock %}

{% block header %}
    <div class="container-header">
        <h1 class="display-4">QR-Code Scanner</h1>
        <div class="container-status">
            <span class="badge bg-primary">Scanner aktiv</span>
        </div>
    </div>
{% endblock %}

{% block breadcrumb %}
    <i class="fas fa-qrcode me-2"></i>QR-Code Scanner
{% endblock %}

{% block content %}
    <div class="container mt-4">
        <div class="row justify-content-center">
            <div class="col-md-8">
                <div class="card shadow border-start border-bottom">
                    <div class="card-header bg-light">
                        <h5 class="card-title mb-0">
                            <i class="fas fa-camera me-2"></i>QR-Code Scanner
                        </h5>
                    </div>
                    <div class="card-body">
                        <div class="scanner-container">
                            <div id="reader" class="w-100"></div>
                            <div class="scanner-overlay">
                                <div class="scanner-line"></div>
                            </div>
                        </div>
                        <div id="result" class="mt-4"></div>
                    </div>
                </div>
            </div>
        </div>
    </div>
{% endblock %}

{% block javascripts %}
    <script src="https://unpkg.com/html5-qrcode"></script>
    <script>
        document.addEventListener('DOMContentLoaded', function() {
            const html5QrcodeScanner = new Html5QrcodeScanner(
                "reader", { 
                    fps: 10, 
                    qrbox: 250,
                    aspectRatio: 1.0,
                    showTorchButtonIfSupported: true,
                    showZoomSliderIfSupported: true
                });
            
            function processQrCode(decodedText) {
                console.log('Gescannte Daten:', decodedText);
                
                const token = decodedText.trim();
                console.log('Verwendeter Token:', token);
                
                // Zeige Ladeanimation
                document.getElementById('result').innerHTML = `
                    <div class="text-center">
                        <div class="spinner-border text-primary" role="status">
                            <span class="visually-hidden">Laden...</span>
                        </div>
                        <p class="mt-2">QR-Code wird verarbeitet...</p>
                    </div>
                `;
                
                fetch(`/ksbdueren/public/qr-scanner/validate/${token}`)
                    .then(response => {
                        console.log('Server Response:', response);
                        return response.json();
                    })
                    .then(data => {
                        console.log('Validierungsdaten:', data);
                        if (data.success) {
                            const appointment = data.appointment;
                            document.getElementById('result').innerHTML = `
                                <div class="alert alert-success">
                                    <div class="d-flex align-items-center mb-3">
                                        <i class="fas fa-check-circle fa-2x me-3"></i>
                                        <h5 class="mb-0">QR-Code erfolgreich gescannt!</h5>
                                    </div>
                                    <div class="appointment-details">
                                        <div class="row">
                                            <div class="col-md-6">
                                                <p><i class="fas fa-user me-2"></i><strong>Name:</strong> ${appointment.firstName} ${appointment.lastName}</p>
                                                <p><i class="fas fa-clock me-2"></i><strong>Termin:</strong> ${appointment.startTime} - ${appointment.endTime}</p>
                                            </div>
                                            <div class="col-md-6">
                                                <p><i class="fas fa-box me-2"></i><strong>Container:</strong> ${appointment.container}</p>
                                                <p><i class="fas fa-sign-in-alt me-2"></i><strong>Check-in Status:</strong> 
                                                    ${appointment.checkedIn ? 
                                                        `<span class="badge bg-success">Eingecheckt am ${appointment.checkedInAt}</span>` : 
                                                        '<span class="badge bg-warning">Noch nicht eingecheckt</span>'}
                                                </p>
                                            </div>
                                        </div>
                                        <div class="mt-3 pt-3 border-top">
                                            <p class="mb-0"><small class="text-muted"><i class="fas fa-key me-1"></i>Buchungstoken: ${appointment.bookingToken}</small></p>
                                        </div>
                                    </div>
                                </div>
                            `;
                        } else {
                            let debugInfo = '';
                            if (data.debug) {
                                debugInfo = `
                                    <div class="mt-3 pt-3 border-top">
                                        <h6 class="text-muted"><i class="fas fa-bug me-2"></i>Debug-Informationen:</h6>
                                        <div class="debug-info">
                                            ${data.debug.token ? `<p><small><i class="fas fa-info-circle me-1"></i>Gescannte Daten: ${data.debug.token}</small></p>` : ''}
                                            ${data.debug.length ? `<p><small><i class="fas fa-ruler me-1"></i>Token Länge: ${data.debug.length}</small></p>` : ''}
                                            ${data.debug.current_time ? `<p><small><i class="fas fa-clock me-1"></i>Aktuelle Zeit: ${data.debug.current_time}</small></p>` : ''}
                                            ${data.debug.valid_from ? `<p><small><i class="fas fa-calendar-check me-1"></i>Gültig ab: ${data.debug.valid_from}</small></p>` : ''}
                                            ${data.debug.start_time ? `<p><small><i class="fas fa-hourglass-start me-1"></i>Startzeit: ${data.debug.start_time}</small></p>` : ''}
                                            ${data.debug.end_time ? `<p><small><i class="fas fa-hourglass-end me-1"></i>Endzeit: ${data.debug.end_time}</small></p>` : ''}
                                            ${data.debug.minutes_until_valid ? `<p><small><i class="fas fa-hourglass-half me-1"></i>Minuten bis zur Gültigkeit: ${data.debug.minutes_until_valid}</small></p>` : ''}
                                            ${data.debug.minutes_since_end ? `<p><small><i class="fas fa-history me-1"></i>Minuten seit Ende: ${data.debug.minutes_since_end}</small></p>` : ''}
                                            ${data.debug.available_tokens ? `<p><small><i class="fas fa-database me-1"></i>Verfügbare Tokens in DB: ${data.debug.available_tokens.length}</small></p>` : ''}
                                        </div>
                                    </div>
                                `;
                            }
                            
                            document.getElementById('result').innerHTML = `
                                <div class="alert alert-danger">
                                    <div class="d-flex align-items-center mb-3">
                                        <i class="fas fa-exclamation-circle fa-2x me-3"></i>
                                        <h5 class="mb-0">Ungültiger QR-Code</h5>
                                    </div>
                                    <p>${data.message}</p>
                                    ${debugInfo}
                                </div>
                            `;
                        }
                    })
                    .catch(error => {
                        console.error('Fehler bei der Validierung:', error);
                        document.getElementById('result').innerHTML = `
                            <div class="alert alert-danger">
                                <div class="d-flex align-items-center mb-3">
                                    <i class="fas fa-exclamation-triangle fa-2x me-3"></i>
                                    <h5 class="mb-0">Fehler</h5>
                                </div>
                                <p>Ein Fehler ist aufgetreten: ${error.message}</p>
                                <div class="mt-3 pt-3 border-top">
                                    <p><small><i class="fas fa-info-circle me-1"></i>Gescannte Daten: ${decodedText}</small></p>
                                    <p><small><i class="fas fa-ruler me-1"></i>Token Länge: ${decodedText.length}</small></p>
                                </div>
                            </div>
                        `;
                    });
            }

            function onScanSuccess(decodedText, decodedResult) {
                // Stoppe den Scanner nach erfolgreicher Erkennung
                html5QrcodeScanner.clear();
                processQrCode(decodedText);
                
                // Starte den Scanner nach 5 Sekunden neu
                setTimeout(() => {
                    document.getElementById('result').innerHTML = '';
                    html5QrcodeScanner.render(onScanSuccess, onScanFailure);
                }, 5000);
            }

            function onScanFailure(error) {
                console.warn(`QR Code Scan fehlgeschlagen: ${error}`);
            }

            html5QrcodeScanner.render(onScanSuccess, onScanFailure);
        });
    </script>

<style>
.container-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.container-status {
    margin-left: 1rem;
}

.card {
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.scanner-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    background-color: #f8f9fa;
}

.scanner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.scanner-line {
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #2c3e50;
    animation: scan 2s linear infinite;
}

@keyframes scan {
    0% {
        top: 0;
    }
    50% {
        top: 100%;
    }
    100% {
        top: 0;
    }
}

.appointment-details {
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    padding: 1rem;
}

.debug-info {
    background-color: rgba(0, 0, 0, 0.03);
    border-radius: 4px;
    padding: 1rem;
}

.badge {
    font-weight: 500;
    padding: 0.5em 1em;
}

.badge.bg-primary {
    background-color: #2c3e50 !important;
}

.alert {
    border: none;
    border-radius: 8px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

@media (max-width: 768px) {
    .container-header {
        flex-direction: column;
        text-align: center;
    }
    
    .container-status {
        margin: 1rem 0 0 0;
    }
    
    .scanner-container {
        max-width: 100%;
    }
}
</style>
{% endblock %}