{% extends '@administration/base.html.twig' %}

{% block title %}Rechnung bearbeiten{% endblock %}

{% block body %}
<nav aria-label="breadcrumb" class="mb-4">
  <ol class="breadcrumb bg-light p-2 rounded">
    <li class="breadcrumb-item"><a href="/admin/license-server">Lizenzserver</a></li>
    <li class="breadcrumb-item"><a href="/admin/license-server/invoices">Rechnungen</a></li>
    <li class="breadcrumb-item active" aria-current="page">Rechnung bearbeiten</li>
  </ol>
</nav>
<div class="container-fluid">
    <div class="row">
        <div class="col-12">
            <div class="card">
                <div class="card-header">
                    <h3 class="card-title">Rechnung bearbeiten</h3>
                    <div class="card-tools">
                        <a href="/admin/license-server/invoices" class="btn btn-secondary btn-sm">
                            <i class="fas fa-arrow-left"></i> Zurück zur Übersicht
                        </a>
                    </div>
                </div>
                <div class="card-body">
                    <form id="editInvoiceForm">
                        <div class="row">
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="invoiceNumber">Rechnungsnummer</label>
                                    <input type="text" class="form-control" id="invoiceNumber" value="{{ invoice.invoiceNumber }}" readonly>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="status">Status</label>
                                    <select class="form-control" id="status" name="status">
                                        <option value="pending" {% if invoice.status == 'pending' %}selected{% endif %}>Ausstehend</option>
                                        <option value="paid" {% if invoice.status == 'paid' %}selected{% endif %}>Bezahlt</option>
                                        <option value="overdue" {% if invoice.status == 'overdue' %}selected{% endif %}>Überfällig</option>
                                        <option value="cancelled" {% if invoice.status == 'cancelled' %}selected{% endif %}>Storniert</option>
                                    </select>
                                </div>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="invoiceDate">Rechnungsdatum</label>
                                    <input type="date" class="form-control" id="invoiceDate" value="{{ invoice.invoiceDate|date('Y-m-d') }}" readonly>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="dueDate">Fälligkeitsdatum</label>
                                    <input type="date" class="form-control" id="dueDate" name="dueDate" value="{{ invoice.dueDate|date('Y-m-d') }}" required>
                                </div>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="customerName">Kunde</label>
                                    <input type="text" class="form-control" id="customerName" value="{{ invoice.customer.name }}" readonly>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="customerEmail">E-Mail</label>
                                    <input type="email" class="form-control" id="customerEmail" value="{{ invoice.customer.email }}" readonly>
                                </div>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-12">
                                <div class="form-group">
                                    <label for="notes">Notizen</label>
                                    <textarea class="form-control" id="notes" name="notes" rows="3">{{ invoice.notes }}</textarea>
                                </div>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-12">
                                <h5>Rechnungspositionen</h5>
                                <table class="table table-bordered">
                                    <thead>
                                        <tr>
                                            <th>Beschreibung</th>
                                            <th>Menge</th>
                                            <th>Einzelpreis</th>
                                            <th>Gesamt</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        {% for item in invoice.items %}
                                        <tr>
                                            <td>{{ item.description }}</td>
                                            <td>{{ item.quantity }}</td>
                                            <td>{{ item.unitPrice|number_format(2, ',', '.') }}€</td>
                                            <td>{{ (item.quantity * item.unitPrice)|number_format(2, ',', '.') }}€</td>
                                        </tr>
                                        {% endfor %}
                                    </tbody>
                                    <tfoot>
                                        <tr>
                                            <td colspan="3" class="text-right"><strong>Gesamt:</strong></td>
                                            <td><strong>{{ invoice.totalAmount|number_format(2, ',', '.') }}€</strong></td>
                                        </tr>
                                    </tfoot>
                                </table>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-12">
                                <button type="submit" class="btn btn-primary">
                                    <i class="fas fa-save"></i> Änderungen speichern
                                </button>
                                <a href="/admin/license-server/invoices" class="btn btn-secondary">
                                    <i class="fas fa-times"></i> Abbrechen
                                </a>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
document.getElementById('editInvoiceForm').addEventListener('submit', function(e) {
    e.preventDefault();
    
    const formData = new FormData();
    formData.append('status', document.getElementById('status').value);
    formData.append('dueDate', document.getElementById('dueDate').value);
    formData.append('notes', document.getElementById('notes').value);

    fetch('/admin/license-server/invoices/{{ invoice.id }}/update', {
        method: 'POST',
        body: formData,
        headers: {
            'X-Requested-With': 'XMLHttpRequest'
        }
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            alert('Rechnung erfolgreich aktualisiert!');
            window.location.href = '/admin/license-server/invoices';
        } else {
            alert('Fehler: ' + (data.error || 'Unbekannter Fehler'));
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('Ein Fehler ist aufgetreten. Bitte versuchen Sie es erneut.');
    });
});
</script>
{% endblock %}