{% extends "base.html" %}

{% block title %}Benutzerverwaltung{% endblock %}

{% block content %}
<div class="container-fluid">
    <div class="row">
        <div class="col-12">
            <div class="d-flex justify-content-between align-items-center mb-4">
                <h4><i class="fas fa-users"></i> Benutzerverwaltung</h4>
                <div>
                    <a href="{{ url_for('admin.create_user') }}" class="btn btn-success btn-sm">
                        <i class="fas fa-user-plus"></i> Erstellen
                    </a>
                    <a href="{{ url_for('admin.admin_dashboard') }}" class="btn btn-outline-secondary btn-sm">
                        <i class="fas fa-arrow-left"></i> Zurück
                    </a>
                </div>
            </div>

            {% if users %}
            <div class="card">
                <div class="card-body">
                    <div class="table-responsive">
                        <table class="table table-hover">
                            <thead>
                                <tr>
                                    <th>ID</th>
                                    <th>Benutzername</th>
                                    <th>E-Mail</th>
                                    <th>Rolle</th>
                                    <th>Erstellt am</th>
                                    <th>Aktionen</th>
                                </tr>
                            </thead>
                            <tbody>
                                {% for user in users %}
                                <tr id="user-row-{{ user.id }}">
                                    <td>{{ user.id }}</td>
                                    <td>
                                        <strong>{{ user.username }}</strong>
                                        {% if user.id == current_user.id %}
                                        <span class="badge bg-primary ms-1">Sie</span>
                                        {% endif %}
                                    </td>
                                    <td>{{ user.email }}</td>
                                    <td>
                                        <div class="d-flex align-items-center">
                                            {% if user.is_admin %}
                                            <span class="badge bg-danger me-1">
                                                <i class="fas fa-user-shield"></i> Admin
                                            </span>
                                            {% else %}
                                            <span class="badge bg-secondary me-1">
                                                <i class="fas fa-user"></i> User
                                            </span>
                                            {% endif %}
                                            
                                            {% if user.id != current_user.id %}
                                            <button class="btn btn-xs btn-outline-info btn-sm" 
                                                    onclick="toggleAdmin({{ user.id }})" 
                                                    title="Rolle wechseln">
                                                <i class="fas fa-exchange-alt"></i>
                                            </button>
                                            {% endif %}
                                        </div>
                                    </td>
                                    <td>{{ user.created_at.strftime('%d.%m.%Y %H:%M') }}</td>
                                    <td>
                                        <div class="btn-group btn-group-sm">
                                            <a href="{{ url_for('admin.edit_user', user_id=user.id) }}" 
                                               class="btn btn-outline-primary btn-sm" title="Bearbeiten">
                                                <i class="fas fa-edit"></i>
                                            </a>
                                            
                                            {% if user.id != current_user.id %}
                                            <form method="POST" action="{{ url_for('admin.delete_user', user_id=user.id) }}" 
                                                  class="d-inline" onsubmit="return confirm('Benutzer {{ user.username }} wirklich löschen?')">
                                                <button type="submit" class="btn btn-outline-danger btn-sm" title="Löschen">
                                                    <i class="fas fa-trash"></i>
                                                </button>
                                            </form>
                                            {% endif %}
                                        </div>
                                    </td>
                                </tr>
                                {% endfor %}
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>
            {% else %}
            <div class="card">
                <div class="card-body text-center py-4">
                    <i class="fas fa-users fa-2x text-muted mb-2"></i>
                    <h6>Keine Benutzer gefunden</h6>
                    <p class="text-muted small">Erstellen Sie den ersten Benutzer.</p>
                    <a href="{{ url_for('admin.create_user') }}" class="btn btn-success btn-sm">
                        <i class="fas fa-user-plus"></i> Ersten Benutzer erstellen
                    </a>
                </div>
            </div>
            {% endif %}
        </div>
    </div>
</div>

<script>
async function toggleAdmin(userId) {
    try {
        const response = await fetch(`/admin/users/${userId}/toggle_admin`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            }
        });
        
        const data = await response.json();
        
        if (data.success) {
            showAlert(data.message, 'success');
            // Seite neu laden um Änderungen anzuzeigen
            setTimeout(() => window.location.reload(), 1000);
        } else {
            showAlert(data.error, 'error');
        }
    } catch (error) {
        showAlert(`Fehler: ${error.message}`, 'error');
    }
}

function showAlert(message, type = 'info') {
    const alertClass = type === 'error' ? 'alert-danger' : 
                      type === 'success' ? 'alert-success' : 'alert-info';
    
    const alertHtml = `
        <div class="alert ${alertClass} alert-dismissible fade show" role="alert">
            ${message}
            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
        </div>
    `;
    
    // Alert am Anfang der Seite einfügen
    const container = document.querySelector('.container-fluid');
    const existingAlert = container.querySelector('.alert');
    if (existingAlert) {
        existingAlert.remove();
    }
    
    container.insertAdjacentHTML('afterbegin', alertHtml);
}
</script>
{% endblock %}