{% extends "base.html" %}

{% block title %}Lizenzübersicht{% endblock %}

{% macro sortable_header(label, field, current_sort, current_order) %}
<th>
    {% set base_url = url_for('licenses.licenses') %}
    {% set params = [] %}
    {% if search %}{% set _ = params.append('search=' + search|urlencode) %}{% endif %}
    {% if request.args.get('data_source') %}{% set _ = params.append('data_source=' + request.args.get('data_source')|urlencode) %}{% endif %}
    {% if request.args.get('license_type') %}{% set _ = params.append('license_type=' + request.args.get('license_type')|urlencode) %}{% endif %}
    {% if request.args.get('license_status') %}{% set _ = params.append('license_status=' + request.args.get('license_status')|urlencode) %}{% endif %}
    {% set _ = params.append('sort=' + field) %}
    {% if current_sort == field %}
        {% set _ = params.append('order=' + ('desc' if current_order == 'asc' else 'asc')) %}
    {% else %}
        {% set _ = params.append('order=asc') %}
    {% endif %}
    {% set _ = params.append('page=1') %}
    
    <a href="{{ base_url }}?{{ params|join('&') }}" class="server-sortable">
        {{ label }}
        <span class="sort-indicator{% if current_sort == field %} active{% endif %}">
            {% if current_sort == field %}
                {% if current_order == 'asc' %}↑{% else %}↓{% endif %}
            {% else %}
                ↕
            {% endif %}
        </span>
    </a>
</th>
{% endmacro %}

{% block extra_css %}
<style>
.filter-group {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.filter-group h6 {
    color: #495057;
    font-weight: 600;
}

.badge.bg-info {
    background-color: #0dcaf0 !important;
    font-size: 0.75rem;
}

.active-filters .badge {
    font-size: 0.875rem;
    padding: 0.35em 0.65em;
}

.active-filters a {
    text-decoration: none;
    opacity: 0.8;
}

.active-filters a:hover {
    opacity: 1;
}

#advancedFilters {
    transition: all 0.3s ease;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
}
</style>
{% endblock %}

{% block content %}
<div class="container py-5">
    <div class="mb-4">
        <h2>Lizenzübersicht</h2>
    </div>

    <!-- Such- und Filterformular -->
    <div class="card mb-3">
        <div class="card-body">
            <form method="get" action="{{ url_for('licenses.licenses') }}" id="filterForm">
                <!-- Filter Controls -->
                <div class="row g-3 mb-3">
                    <div class="col-md-3">
                        <label for="dataSource" class="form-label">Datenquelle</label>
                        <select class="form-select" name="data_source" id="dataSource" onchange="this.form.submit()">
                            <option value="real" {% if request.args.get('data_source', 'real') == 'real' %}selected{% endif %}>Echte Lizenzen</option>
                            <option value="fake" {% if request.args.get('data_source') == 'fake' %}selected{% endif %}>🧪 Fake-Daten</option>
                            <option value="all" {% if request.args.get('data_source') == 'all' %}selected{% endif %}>Alle Daten</option>
                        </select>
                    </div>
                    <div class="col-md-3">
                        <label for="licenseType" class="form-label">Lizenztyp</label>
                        <select class="form-select" name="license_type" id="licenseType" onchange="this.form.submit()">
                            <option value="" {% if not request.args.get('license_type') %}selected{% endif %}>Alle Typen</option>
                            <option value="full" {% if request.args.get('license_type') == 'full' %}selected{% endif %}>Vollversion</option>
                            <option value="test" {% if request.args.get('license_type') == 'test' %}selected{% endif %}>Testversion</option>
                        </select>
                    </div>
                    <div class="col-md-3">
                        <label for="licenseStatus" class="form-label">Status</label>
                        <select class="form-select" name="license_status" id="licenseStatus" onchange="this.form.submit()">
                            <option value="" {% if not request.args.get('license_status') %}selected{% endif %}>Alle Status</option>
                            <option value="active" {% if request.args.get('license_status') == 'active' %}selected{% endif %}>✅ Aktiv</option>
                            <option value="expired" {% if request.args.get('license_status') == 'expired' %}selected{% endif %}>⚠️ Abgelaufen</option>
                            <option value="inactive" {% if request.args.get('license_status') == 'inactive' %}selected{% endif %}>❌ Deaktiviert</option>
                        </select>
                    </div>
                    <div class="col-md-3 d-flex align-items-end">
                        <a href="{{ url_for('licenses.licenses') }}" class="btn btn-secondary w-100">
                            <i class="bi bi-arrow-clockwise"></i> Filter zurücksetzen
                        </a>
                    </div>
                </div>
                
                <!-- Search Field -->
                <div class="row g-3 mb-3">
                    <div class="col-md-9">
                        <label for="search" class="form-label">🔍 Suchen</label>
                        <input type="text" class="form-control" id="search" name="search" 
                               placeholder="Lizenzschlüssel, Kunde, E-Mail..." 
                               value="{{ search }}">
                    </div>
                    <div class="col-md-3 d-flex align-items-end">
                        <button type="submit" class="btn btn-primary w-100">
                            <i class="bi bi-search"></i> Suchen
                        </button>
                    </div>
                </div>
                
                <!-- Hidden fields for sorting and pagination -->
                <input type="hidden" name="sort" value="{{ sort }}">
                <input type="hidden" name="order" value="{{ order }}">
                <!-- Note: Other filters are preserved by the form elements themselves -->
            </form>
            {% if search or request.args.get('data_source') != 'real' or request.args.get('license_type') or request.args.get('license_status') %}
            <div class="mt-2">
                <div class="d-flex align-items-center justify-content-between">
                    <small class="text-muted">
                        Gefiltert: {{ total }} Ergebnisse
                    </small>
                    <div class="active-filters">
                        {% if search %}
                        <span class="badge bg-secondary me-1">
                            <i class="bi bi-search"></i> {{ search }}
                            {% set clear_search_params = [] %}
                            {% for type in filter_types %}{% set _ = clear_search_params.append('types[]=' + type|urlencode) %}{% endfor %}
                            {% for status in filter_statuses %}{% set _ = clear_search_params.append('statuses[]=' + status|urlencode) %}{% endfor %}
                            {% if show_fake %}{% set _ = clear_search_params.append('show_fake=1') %}{% endif %}
                            {% set _ = clear_search_params.append('sort=' + sort) %}
                            {% set _ = clear_search_params.append('order=' + order) %}
                            <a href="{{ url_for('licenses.licenses') }}?{{ clear_search_params|join('&') }}" class="text-white ms-1">&times;</a>
                        </span>
                        {% endif %}
                    </div>
                </div>
            </div>
            {% endif %}
        </div>
    </div>

    <div class="card">
        <div class="card-body p-0">
            <div class="table-container">
                <table class="table table-hover table-sticky mb-0">
                    <thead>
                        <tr>
                            <th class="checkbox-cell">
                                <input type="checkbox" class="form-check-input form-check-input-custom" id="selectAll">
                            </th>
                            {{ sortable_header('ID', 'id', sort, order) }}
                            {{ sortable_header('Lizenzschlüssel', 'license_key', sort, order) }}
                            {{ sortable_header('Kunde', 'customer', sort, order) }}
                            {{ sortable_header('E-Mail', 'email', sort, order) }}
                            {{ sortable_header('Typ', 'type', sort, order) }}
                            {{ sortable_header('Gültig von', 'valid_from', sort, order) }}
                            {{ sortable_header('Gültig bis', 'valid_until', sort, order) }}
                            {{ sortable_header('Status', 'status', sort, order) }}
                            {{ sortable_header('Aktiv', 'active', sort, order) }}
                            <th>Aktionen</th>
                        </tr>
                    </thead>
                    <tbody>
                        {% for license in licenses %}
                        <tr>
                            <td class="checkbox-cell">
                                <input type="checkbox" class="form-check-input form-check-input-custom license-checkbox" value="{{ license.id }}">
                            </td>
                            <td>{{ license.id }}</td>
                            <td>
                                <div class="d-flex align-items-center">
                                    <code class="me-2">{{ license.license_key }}</code>
                                    <button class="btn btn-sm btn-outline-secondary btn-copy" onclick="copyToClipboard('{{ license.license_key }}', this)" title="Kopieren">
                                        📋
                                    </button>
                                </div>
                            </td>
                            <td>
                                {{ license.customer_name }}
                                {% if license.is_fake %}
                                    <span class="badge bg-secondary ms-1" title="Fake-Daten">🧪</span>
                                {% endif %}
                            </td>
                            <td>-</td>
                            <td>
                                {% if license.license_type == 'full' %}
                                    <span class="badge bg-success">Vollversion</span>
                                {% else %}
                                    <span class="badge bg-warning">Testversion</span>
                                {% endif %}
                            </td>
                            <td>{{ license.valid_from.strftime('%d.%m.%Y') }}</td>
                            <td>{{ license.valid_until.strftime('%d.%m.%Y') }}</td>
                            <td>
                                {% if not license.is_active %}
                                    <span class="status-deaktiviert">❌ Deaktiviert</span>
                                {% elif license.valid_until < now().date() %}
                                    <span class="status-abgelaufen">⚠️ Abgelaufen</span>
                                {% else %}
                                    <span class="status-aktiv">✅ Aktiv</span>
                                {% endif %}
                            </td>
                            <td>
                                <div class="form-check form-switch form-switch-custom">
                                    <input class="form-check-input" type="checkbox" 
                                           id="active_{{ license.id }}" 
                                           {{ 'checked' if license.is_active else '' }}
                                           onchange="toggleLicenseStatus({{ license.id }}, this.checked)">
                                </div>
                            </td>
                            <td>
                                <div class="btn-group btn-group-sm" role="group">
                                    <a href="{{ url_for('licenses.edit_license', license_id=license.id) }}" class="btn btn-outline-primary">✏️ Bearbeiten</a>
                                    <form method="post" action="{{ url_for('licenses.delete_license', license_id=license.id) }}" style="display: inline;" onsubmit="return confirm('Wirklich löschen?');">
                                        <button type="submit" class="btn btn-outline-danger">🗑️ Löschen</button>
                                    </form>
                                </div>
                            </td>
                        </tr>
                        {% endfor %}
                    </tbody>
                </table>
                
                {% if not licenses %}
                <div class="text-center py-5">
                    {% if search %}
                    <p class="text-muted">Keine Lizenzen gefunden für: <strong>{{ search }}</strong></p>
                    <a href="{{ url_for('licenses.licenses') }}" class="btn btn-secondary">Alle Lizenzen anzeigen</a>
                    {% else %}
                    <p class="text-muted">Noch keine Lizenzen vorhanden.</p>
                    <a href="{{ url_for('licenses.create_license') }}" class="btn btn-primary">Erste Lizenz erstellen</a>
                    {% endif %}
                </div>
                {% endif %}
            </div>
            
            <!-- Pagination -->
            {% if total_pages > 1 %}
            <nav aria-label="Seitennavigation" class="mt-3">
                <ul class="pagination justify-content-center">
                    {% set base_url = url_for('licenses.licenses') %}
                    {% set base_params = [] %}
                    {% if search %}{% set _ = base_params.append('search=' + search|urlencode) %}{% endif %}
                    {% for type in filter_types %}{% set _ = base_params.append('types[]=' + type|urlencode) %}{% endfor %}
                    {% for status in filter_statuses %}{% set _ = base_params.append('statuses[]=' + status|urlencode) %}{% endfor %}
                    {% set _ = base_params.append('sort=' + sort) %}
                    {% set _ = base_params.append('order=' + order) %}
                    
                    <!-- Erste Seite -->
                    <li class="page-item {% if page == 1 %}disabled{% endif %}">
                        <a class="page-link" href="{{ base_url }}?{{ base_params|join('&') }}&page=1">Erste</a>
                    </li>
                    
                    <!-- Vorherige Seite -->
                    <li class="page-item {% if page == 1 %}disabled{% endif %}">
                        <a class="page-link" href="{{ base_url }}?{{ base_params|join('&') }}&page={{ page-1 }}">←</a>
                    </li>
                    
                    <!-- Seitenzahlen -->
                    {% for p in range(1, total_pages + 1) %}
                        {% if p >= page - 2 and p <= page + 2 %}
                        <li class="page-item {% if p == page %}active{% endif %}">
                            <a class="page-link" href="{{ base_url }}?{{ base_params|join('&') }}&page={{ p }}">{{ p }}</a>
                        </li>
                        {% endif %}
                    {% endfor %}
                    
                    <!-- Nächste Seite -->
                    <li class="page-item {% if page == total_pages %}disabled{% endif %}">
                        <a class="page-link" href="{{ base_url }}?{{ base_params|join('&') }}&page={{ page+1 }}">→</a>
                    </li>
                    
                    <!-- Letzte Seite -->
                    <li class="page-item {% if page == total_pages %}disabled{% endif %}">
                        <a class="page-link" href="{{ base_url }}?{{ base_params|join('&') }}&page={{ total_pages }}">Letzte</a>
                    </li>
                </ul>
                <p class="text-center text-muted">
                    Seite {{ page }} von {{ total_pages }} | Gesamt: {{ total }} Lizenzen
                </p>
            </nav>
            {% endif %}
        </div>
    </div>
</div>

<!-- Bulk Actions Bar -->
<div class="bulk-actions" id="bulkActionsBar">
    <div>
        <span id="selectedCount">0</span> Lizenzen ausgewählt
    </div>
    <div>
        <button class="btn btn-success btn-sm me-2" onclick="bulkActivate()">✅ Aktivieren</button>
        <button class="btn btn-warning btn-sm me-2" onclick="bulkDeactivate()">⏸️ Deaktivieren</button>
        <button class="btn btn-danger btn-sm" onclick="bulkDelete()">🗑️ Löschen</button>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>

// Live Filtering
document.addEventListener('DOMContentLoaded', function() {
    const filterForm = document.getElementById('filterForm');
    const searchInput = document.getElementById('search');
    
});

// Copy to Clipboard
function copyToClipboard(text, button) {
    navigator.clipboard.writeText(text).then(function() {
        button.classList.add('copied');
        button.innerHTML = '✅';
        setTimeout(function() {
            button.classList.remove('copied');
            button.innerHTML = '📋';
        }, 2000);
    });
}

// Toggle License Status
function toggleLicenseStatus(licenseId, isActive) {
    // Build URL manually to avoid template rendering issues
    const baseUrl = '{{ url_for("api.toggle_license", license_id=999999) }}'.replace('999999', licenseId);
    fetch(baseUrl, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        body: JSON.stringify({ is_active: isActive })
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            // Optional: Show success message
        } else {
            // Revert toggle on error
            document.getElementById(`active_${licenseId}`).checked = !isActive;
            alert('Fehler beim Ändern des Status');
        }
    });
}

// Bulk Selection
const selectAll = document.getElementById('selectAll');
const checkboxes = document.querySelectorAll('.license-checkbox');
const bulkActionsBar = document.getElementById('bulkActionsBar');
const selectedCount = document.getElementById('selectedCount');

selectAll.addEventListener('change', function() {
    checkboxes.forEach(cb => cb.checked = this.checked);
    updateBulkActions();
});

checkboxes.forEach(cb => {
    cb.addEventListener('change', updateBulkActions);
});

function updateBulkActions() {
    const checkedBoxes = document.querySelectorAll('.license-checkbox:checked');
    const count = checkedBoxes.length;
    
    if (count > 0) {
        bulkActionsBar.classList.add('show');
        selectedCount.textContent = count;
    } else {
        bulkActionsBar.classList.remove('show');
    }
    
    // Update select all checkbox
    selectAll.checked = count === checkboxes.length && count > 0;
    selectAll.indeterminate = count > 0 && count < checkboxes.length;
}

// Bulk Actions
function getSelectedIds() {
    return Array.from(document.querySelectorAll('.license-checkbox:checked'))
        .map(cb => cb.value);
}

function bulkActivate() {
    const ids = getSelectedIds();
    if (confirm(`${ids.length} Lizenzen aktivieren?`)) {
        performBulkAction('{{ url_for('api.bulk_activate_licenses') }}', ids);
    }
}

function bulkDeactivate() {
    const ids = getSelectedIds();
    if (confirm(`${ids.length} Lizenzen deaktivieren?`)) {
        performBulkAction('{{ url_for('api.bulk_deactivate_licenses') }}', ids);
    }
}

function bulkDelete() {
    const ids = getSelectedIds();
    if (confirm(`${ids.length} Lizenzen wirklich löschen? Diese Aktion kann nicht rückgängig gemacht werden!`)) {
        performBulkAction('{{ url_for('api.bulk_delete_licenses') }}', ids);
    }
}

function performBulkAction(url, ids) {
    fetch(url, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        body: JSON.stringify({ ids: ids })
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            // Show warnings if any licenses were skipped
            if (data.warnings && data.warnings.length > 0) {
                let warningMessage = data.message + '\n\n';
                warningMessage += 'Warnungen:\n';
                data.warnings.forEach(warning => {
                    warningMessage += '⚠️ ' + warning + '\n';
                });
                alert(warningMessage);
            }
            location.reload();
        } else {
            alert('Fehler bei der Bulk-Aktion: ' + (data.error || data.message));
        }
    });
}
</script>
{% endblock %}