{% extends "base.html" %}

{% block title %}Bibliotheksausweise - Inventarsystem{% endblock %}

{% block content %}
<style>
    .student-card-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 20px;
        flex-wrap: wrap;
        gap: 15px;
    }

    .dashboard-grid {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 20px;
        margin-bottom: 30px;
    }

    .student-card-form {
        background: var(--ui-bg);
        padding: 20px;
        border-radius: 8px;
    }

    .import-card {
        border: 1px solid #dbe4ee;
        border-radius: 8px;
        padding: 20px;
        background: #f8fbff;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .rollover-box {
        background: #fff3cd;
        border: 1px solid #ffeeba;
        border-radius: 6px;
        padding: 10px 12px;
        margin-top: 4px;
    }

    .rollover-label {
        display: flex;
        align-items: center;
        gap: 8px;
        cursor: pointer;
        font-size: 13px;
        color: #856404;
        font-weight: 700;
        margin: 0;
    }

    .rollover-hint {
        display: block;
        margin-top: 4px;
        font-size: 11px;
        color: #856404;
        line-height: 1.3;
    }

    .form-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
        margin-bottom: 15px;
    }

    .form-row.full-width {
        grid-template-columns: 1fr;
    }

    .form-group {
        display: flex;
        flex-direction: column;
    }

    .form-group label {
        font-weight: 600;
        margin-bottom: 5px;
        color: var(--ui-text);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
        border: 1px solid #ddd;
        border-radius: 4px;
        font-size: 14px;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        outline: none;
        border-color: #007bff;
        box-shadow: 0 0 5px rgba(0, 123, 255, 0.3);
    }

    .form-actions {
        display: flex;
        gap: 10px;
        justify-content: flex-end;
        margin-top: 10px;
    }

    .form-actions button, .form-actions a {
        padding: 10px 20px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-weight: 600;
        text-decoration: none;
    }

    .btn-save {
        background: #28a745;
        color: white;
    }

    .btn-save:hover {
        background: #218838;
    }

    .btn-cancel {
        background: #6c757d;
        color: white;
    }

    .btn-cancel:hover {
        background: #5a6268;
    }

    /* Filter Controls Styling */
    .filter-bar {
        display: flex;
        gap: 12px;
        margin-bottom: 15px;
        flex-wrap: wrap;
        align-items: center;
        background: var(--ui-bg);
        padding: 12px;
        border-radius: 8px;
        border: 1px solid #ddd;
    }

    .filter-bar input,
    .filter-bar select {
        padding: 8px 12px;
        border: 1px solid #ccc;
        border-radius: 4px;
        font-size: 14px;
    }

    .filter-bar input {
        flex: 1;
        min-width: 200px;
    }

    .filter-counter {
        font-size: 13px;
        color: #666;
        margin-left: auto;
    }

    .cards-table {
        width: 100%;
        border-collapse: collapse;
        background: white;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    }

    .cards-table thead {
        background: #007bff;
        color: white;
        font-weight: 600;
    }

    .cards-table th,
    .cards-table td {
        padding: 12px 15px;
        text-align: left;
        border-bottom: 1px solid #eee;
    }

    .cards-table tbody tr:hover {
        background: #f9f9f9;
    }

    .cards-table tbody tr:last-child td {
        border-bottom: none;
    }

    .card-actions {
        display: flex;
        gap: 8px;
        align-items: center;
    }

    .btn-edit, .btn-delete, .btn-export {
        padding: 6px 12px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 13px;
        font-weight: 600;
        text-decoration: none;
        display: inline-block;
    }

    .btn-edit {
        background: #007bff;
        color: white;
    }

    .btn-edit:hover {
        background: #0056b3;
    }

    .btn-delete {
        background: #dc3545;
        color: white;
    }

    .btn-delete:hover {
        background: #c82333;
    }

    .btn-print {
        padding: 10px 16px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 14px;
        font-weight: 600;
        text-decoration: none;
        display: inline-block;
        background: #17a2b8;
        color: white;
    }

    .btn-print:hover {
        background: #138496;
    }

    .btn-export {
        background: #6f42c1;
        color: white;
    }

    .btn-export:hover {
        background: #5a32a3;
    }

    .export-buttons {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        align-items: center;
    }

    .empty-state {
        text-align: center;
        padding: 40px;
        color: #666;
    }

    .empty-state p {
        font-size: 16px;
        margin: 10px 0;
    }

    :root[data-theme="dark"] .student-card-form,
    :root[data-theme="dark"] .import-card,
    :root[data-theme="dark"] .filter-bar {
        background: var(--ui-surface) !important;
        color: var(--ui-text) !important;
        border-color: var(--ui-border) !important;
        box-shadow: var(--ui-shadow-sm);
    }

    :root[data-theme="dark"] .import-card {
        background: var(--ui-surface-soft) !important;
    }

    :root[data-theme="dark"] .import-card p,
    :root[data-theme="dark"] .rollover-hint,
    :root[data-theme="dark"] .empty-state,
    :root[data-theme="dark"] .empty-state p,
    :root[data-theme="dark"] .filter-counter {
        color: var(--ui-text-muted) !important;
    }

    :root[data-theme="dark"] .rollover-box {
        background: #422006 !important;
        border-color: #f59e0b !important;
    }

    :root[data-theme="dark"] .rollover-label,
    :root[data-theme="dark"] .rollover-hint {
        color: #fde68a !important;
    }

    :root[data-theme="dark"] .form-group input,
    :root[data-theme="dark"] .form-group select,
    :root[data-theme="dark"] .form-group textarea,
    :root[data-theme="dark"] .filter-bar input,
    :root[data-theme="dark"] .filter-bar select,
    :root[data-theme="dark"] .export-buttons form,
    :root[data-theme="dark"] .export-buttons select {
        background: var(--ui-bg) !important;
        background-color: var(--ui-bg) !important;
        color: var(--ui-text) !important;
        border-color: var(--ui-border) !important;
    }

    :root[data-theme="dark"] .form-group input:focus,
    :root[data-theme="dark"] .form-group select:focus,
    :root[data-theme="dark"] .form-group textarea:focus,
    :root[data-theme="dark"] .filter-bar input:focus,
    :root[data-theme="dark"] .filter-bar select:focus,
    :root[data-theme="dark"] .export-buttons select:focus {
        border-color: #60a5fa !important;
        box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22) !important;
    }

    :root[data-theme="dark"] .cards-table {
        background: var(--ui-surface) !important;
        color: var(--ui-text) !important;
        border-color: var(--ui-border) !important;
        box-shadow: var(--ui-shadow-sm);
    }

    :root[data-theme="dark"] .cards-table thead {
        background: #1d4ed8 !important;
        color: #ffffff !important;
    }

    :root[data-theme="dark"] .cards-table th,
    :root[data-theme="dark"] .cards-table td {
        background: var(--ui-surface) !important;
        color: var(--ui-text) !important;
        border-color: var(--ui-border) !important;
    }

    :root[data-theme="dark"] .cards-table tbody tr:hover td {
        background: var(--ui-bg-accent) !important;
    }

    @media (max-width: 768px) {
        .export-buttons {
            width: 100%;
        }

        .export-buttons form,
        .export-buttons > a {
            flex: 1 1 100%;
        }

        .filter-bar {
            flex-direction: column;
            align-items: stretch;
        }

        .filter-counter {
            margin-left: 0;
            text-align: right;
        }
    }

    @media (max-width: 992px) {
        .dashboard-grid {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 768px) {
        .form-row {
            grid-template-columns: 1fr;
        }

        .student-card-header {
            flex-direction: column;
            align-items: flex-start;
        }

        .cards-table {
            font-size: 14px;
        }

        .cards-table th,
        .cards-table td {
            padding: 8px 10px;
        }

        .card-actions {
            flex-direction: column;
            align-items: stretch;
        }
    }
</style>

<div class="container">
    <!-- Header mit Aktionen -->
    <div class="student-card-header">
        <div>
            <h1 style="margin: 0;">📚 Bibliotheksausweise</h1>
        </div>
        <div class="export-buttons">
            <form method="GET" action="{{ url_for('student_card_class_barcode_download') }}" style="display: inline-flex; gap: 5px; align-items: center; background: white; padding: 2px; border-radius: 4px; border: 1px solid #ddd;">
                <select name="class_name" required style="border: none; padding: 8px; outline: none; font-size: 14px; background: transparent; cursor: pointer;">
                    <option value="" disabled selected>-- Klasse wählen --</option>
                    {% for cls in available_classes %}
                        <option value="{{ cls }}">{{ cls }}</option>
                    {% endfor %}
                </select>
                <button type="submit" class="btn-print" style="padding: 8px 12px; margin: 0;">📤 PDF</button>
            </form>

            <a href="{{ url_for('student_card_barcode_download') }}" class="btn-print" style="background: #28a745;">📥 Alle Ausweise (PDF)</a>
            <a href="{{ url_for('library_admin') }}" class="btn btn-primary">← Zur Bibliotheks-Upload</a>
        </div>
    </div>

    <!-- Hauptbereich Grid: Formular + Import -->
    <div class="dashboard-grid">
        <!-- Add/Edit Form -->
        <div class="student-card-form">
            <h2 style="margin-top:0;">{% if edit_mode %}Ausweis bearbeiten{% else %}Neuer Bibliotheksausweis{% endif %}</h2>

            <form method="POST" action="{{ url_for('student_cards_admin') }}">
                {% if edit_mode %}
                    <input type="hidden" name="action" value="edit">
                    <input type="hidden" name="card_id" value="{{ form_data.get('card_id', '') }}">
                {% else %}
                    <input type="hidden" name="action" value="add">
                {% endif %}

                <div class="form-row">
                    <div class="form-group">
                        <label for="student_name">Schüler Name *</label>
                        <input type="text" id="student_name" name="student_name" required
                               value="{{ form_data.get('student_name', '') }}"
                               placeholder="z.B. Max Mustermann">
                    </div>
                    <div class="form-group">
                        <label for="class_name">Klasse</label>
                        <input type="text" id="class_name" name="class_name" list="class_list"
                               value="{{ form_data.get('class_name', '') }}"
                               placeholder="z.B. 10A (Tippen oder Auswählen)">

                        <datalist id="class_list">
                            {% for cls in available_classes %}
                                <option value="{{ cls }}">
                            {% endfor %}
                        </datalist>
                    </div>
                </div>

                <div class="form-row">
                    <div class="form-group">
                        <label for="ausweis_id">Ausweis-ID</label>
                        <input type="text" id="ausweis_id" name="ausweis_id"
                               value="{{ form_data.get('ausweis_id', '') }}"
                               placeholder="z.B. SIS2024001">
                    </div>
                    <div class="form-group">
                        <label for="ausweis_ident">Lokales Differenzierungsmerkmal</label>
                        <input type="text" id="ausweis_ident" name="ausweis_ident"
                               value="{{ form_data.get('ausweis_ident', '') }}"
                               placeholder="z.B. xw5oo123bbe">
                    </div>
                </div>

                <div class="form-row">
                    <div class="form-group">
                        <label for="default_borrow_days">Standard Ausleihdauer (Tage) *</label>
                        <input type="number" id="default_borrow_days" name="default_borrow_days"
                               min="1" max="365" required
                               value="{{ form_data.get('default_borrow_days', config.get('default', 14)) }}">
                    </div>
                </div>

                <div class="form-row full-width">
                    <div class="form-group">
                        <label for="notes">Notizen</label>
                        <textarea id="notes" name="notes" rows="2"
                                  placeholder="Optionale Notizen...">{{ form_data.get('notes', '') }}</textarea>
                    </div>
                </div>

                <div class="form-actions">
                    {% if edit_mode %}
                        <a href="{{ url_for('student_cards_admin') }}" class="btn-cancel">Abbrechen</a>
                    {% endif %}
                    <button type="submit" class="btn-save">
                        {% if edit_mode %}Speichern{% else %}Hinzufügen{% endif %}
                    </button>
                </div>
            </form>
        </div>

        <!-- Excel-Import mit Abgleich (Rollover-Modus) -->
        <div class="import-card">
            <div>
                <h3 style="margin:0 0 8px 0;">Excel-Import</h3>
                <p style="margin:0 0 12px 0; color:#555; font-size:13px; line-height:1.4;">
                    Laden Sie eine <strong>.xlsx</strong>- oder <strong>.csv</strong>-Datei hoch (z. B. aus <strong>ASV</strong>). Erkannt werden Rufame, Nachname, Klasse*, Ausweis-ID*, lokales Differenzierungsmerkmal*, Notizen* & Ausleihdauer*.
                    Hinweis: Die Daten werden Validiert und müssen dann noch einmal aus sicherheits gründen hochgeladen werden!
                </p>
            </div>

            <form method="POST" action="{{ url_for('upload_student_cards_excel') }}" enctype="multipart/form-data" style="display:flex; flex-direction:column; gap:12px;">
                <input type="file" name="student_cards_excel" accept=".xlsx,.csv" required style="font-size:13px;">

                <!-- Rollover / Abgleich Option -->
                <div class="rollover-box">
                    <label class="rollover-label">
                        <input type="checkbox" name="rollover_mode" value="true">
                        <span>Rollover-Modus (Abgleich / Destruktiv)</span>
                    </label>
                    <span class="rollover-hint">
                        ⚠️ <strong>Warnung:</strong> Nicht mehr vorhandene Ausweise/Schüler werden beim Import entfernt bzw. abgeglichen.
                    </span>
                </div>

                <div style="display:flex; gap:8px;">
                    <button type="submit" class="btn btn-secondary" name="excel_action" value="validate" style="flex:1;">Validieren</button>
                    <button type="submit" class="btn btn-primary" name="excel_action" value="import" style="flex:1;">Importieren</button>
                </div>
            </form>
        </div>
    </div>

    <!-- Cards List -->
    <div>
        <h2 style="margin-bottom: 15px;">Registrierte Ausweise</h2>
        {% if student_cards %}
            <!-- Filter Options -->
            <div class="filter-bar">
                <input type="text" id="cardSearchInput" placeholder="🔍 Name oder Ausweis-ID suchen...">
                <select id="classFilterSelect">
                    <option value="">Alle Klassen</option>
                    {% for cls in available_classes %}
                        <option value="{{ cls }}">{{ cls }}</option>
                    {% endfor %}
                </select>
                <button type="button" id="clearFilterBtn" class="btn-cancel" style="padding: 8px 12px; font-size: 13px;">Zurücksetzen</button>
                <span class="filter-counter" id="filterCounter">Angezeigt: {{ student_cards|length }} / {{ student_cards|length }}</span>
            </div>

            <table class="cards-table" id="cardsTable">
                <thead>
                    <tr>
                        <th>Ausweis-ID</th>
                        <th>Schüler Name</th>
                        <th>Klasse</th>
                        <th>Standard Ausleihdauer</th>
                        <th>Erstellt</th>
                        <th>Aktionen</th>
                    </tr>
                </thead>
                <tbody>
                    {% for card in student_cards %}
                        <tr class="card-row" data-id="{{ card.AusweisId|lower }}" data-name="{{ card.SchülerName|lower }}" data-class="{{ card.Klasse or '' }}">
                            <td><strong>{{ card.AusweisId }}</strong></td>
                            <td>{{ card.SchülerName }}</td>
                            <td>{{ card.Klasse or '—' }}</td>
                            <td>{{ card.StandardAusleihdauer }} Tage</td>
                            <td>{{ card.Erstellt.strftime('%d.%m.%Y') if card.get('Erstellt') else '—' }}</td>
                            <td>
                                <div class="card-actions">
                                    <form method="GET" style="display: inline;">
                                        <input type="hidden" name="edit" value="{{ card._id }}">
                                        <button type="submit" class="btn-edit">Bearbeiten</button>
                                    </form>
                                    <a href="{{ url_for('student_card_single_barcode_download', card_id=card._id) }}" class="btn-export">📥 PDF</a>
                                    {% if email_service_enabled %}
                                    <form method="POST" action="{{ url_for('student_card_single_barcode_download', card_id=card._id) }}" style="display:flex; gap:4px; align-items:center;">
                                        <input type="email" name="recipient_email" required placeholder="E-Mail" aria-label="E-Mail für {{ card.SchülerName }}" style="width:150px; padding:5px;">
                                        <button type="submit" class="btn-export">PDF senden</button>
                                    </form>
                                    {% endif %}
                                    <form method="POST" style="display: inline;" onsubmit="return confirm('Wirklich löschen?');">
                                        <input type="hidden" name="action" value="delete">
                                        <input type="hidden" name="card_id" value="{{ card._id }}">
                                        <button type="submit" class="btn-delete">Löschen</button>
                                    </form>
                                </div>
                            </td>
                        </tr>
                    {% endfor %}
                </tbody>
            </table>
            
            <div id="noResultsMsg" class="empty-state" style="display: none;">
                <p>Keine passende Ausweise für diesen Filter gefunden.</p>
            </div>
        {% else %}
            <div class="empty-state">
                <p>Keine Bibliotheksausweise registriert.</p>
                <p>Fügen Sie ein neues Ausweis oben hinzu.</p>
            </div>
        {% endif %}
    </div>
</div>

<script src="https://cdn.jsdelivr.net/npm/qrcode.js"></script>
<script>
    document.addEventListener('DOMContentLoaded', function() {
        const searchInput = document.getElementById('cardSearchInput');
        const classSelect = document.getElementById('classFilterSelect');
        const clearBtn = document.getElementById('clearFilterBtn');
        const filterCounter = document.getElementById('filterCounter');
        const rows = document.querySelectorAll('.card-row');
        const noResultsMsg = document.getElementById('noResultsMsg');
        const totalRows = rows.length;

        function filterCards() {
            const query = searchInput ? searchInput.value.toLowerCase().trim() : '';
            const selectedClass = classSelect ? classSelect.value : '';
            let visibleCount = 0;

            rows.forEach(row => {
                const id = row.getAttribute('data-id') || '';
                const name = row.getAttribute('data-name') || '';
                const cardClass = row.getAttribute('data-class') || '';

                const matchesQuery = !query || id.includes(query) || name.includes(query);
                const matchesClass = !selectedClass || cardClass === selectedClass;

                if (matchesQuery && matchesClass) {
                    row.style.display = '';
                    visibleCount++;
                } else {
                    row.style.display = 'none';
                }
            });

            if (filterCounter) {
                filterCounter.textContent = `Angezeigt: ${visibleCount} / ${totalRows}`;
            }

            if (noResultsMsg) {
                noResultsMsg.style.display = (visibleCount === 0 && totalRows > 0) ? 'block' : 'none';
            }
        }

        if (searchInput) searchInput.addEventListener('input', filterCards);
        if (classSelect) classSelect.addEventListener('change', filterCards);

        if (clearBtn) {
            clearBtn.addEventListener('click', function() {
                if (searchInput) searchInput.value = '';
                if (classSelect) classSelect.value = '';
                filterCards();
            });
        }
    });
</script>

{% endblock %}