{% extends "layout.html" %}

{% block content %}
<div class="container">
    <div class="header-section">
        <h1>⚙️ System Administrator Settings</h1>
        <p class="subtitle">Global system configuration and management</p>
        <a href="{{ url_for('system_admin_dashboard') }}" class="btn btn-secondary">← Back to Dashboard</a>
    </div>

    <!-- System Statistics -->
    <div class="stats-section">
        <h3>📊 System Overview</h3>
        <div class="stats-grid">
            <div class="stat-card">
                <h4>{{ total_companies }}</h4>
                <p>Total Companies</p>
            </div>
            <div class="stat-card">
                <h4>{{ total_users }}</h4>
                <p>Total Users</p>
            </div>
            <div class="stat-card">
                <h4>{{ total_system_admins }}</h4>
                <p>System Administrators</p>
            </div>
        </div>
    </div>

    <!-- System Settings Form -->
    <div class="settings-section">
        <h3>🔧 System Configuration</h3>
        <form method="POST" class="settings-form">
            <div class="setting-group">
                <div class="setting-header">
                    <h4>User Registration</h4>
                    <p>Control whether new users can register accounts</p>
                </div>
                <div class="setting-control">
                    <label class="toggle-label">
                        <input type="checkbox" name="registration_enabled" 
                               {% if settings.get('registration_enabled', True) %}checked{% endif %}>
                        <span class="toggle-slider"></span>
                        <span class="toggle-text">Allow new user registration</span>
                    </label>
                    <small class="setting-description">
                        When enabled, new users can create accounts through the registration page. 
                        When disabled, only administrators can create new user accounts.
                    </small>
                </div>
            </div>

            <div class="setting-group">
                <div class="setting-header">
                    <h4>Email Verification</h4>
                    <p>Require email verification for new accounts</p>
                </div>
                <div class="setting-control">
                    <label class="toggle-label">
                        <input type="checkbox" name="email_verification_required" 
                               {% if settings.get('email_verification_required', True) %}checked{% endif %}>
                        <span class="toggle-slider"></span>
                        <span class="toggle-text">Require email verification</span>
                    </label>
                    <small class="setting-description">
                        When enabled, new users must verify their email address before they can log in. 
                        This helps ensure valid email addresses and improves security.
                    </small>
                </div>
            </div>

            <div class="form-actions">
                <button type="submit" class="btn btn-primary">Save Settings</button>
                <a href="{{ url_for('system_admin_dashboard') }}" class="btn btn-secondary">Cancel</a>
            </div>
        </form>
    </div>

    <!-- System Information -->
    <div class="info-section">
        <h3>ℹ️ System Information</h3>
        <div class="info-grid">
            <div class="info-card">
                <h4>Application Version</h4>
                <p>TimeTrack v1.0</p>
            </div>
            <div class="info-card">
                <h4>Database</h4>
                <p>SQLite</p>
            </div>
            <div class="info-card">
                <h4>System Admin Access</h4>
                <p>Full system control</p>
            </div>
        </div>
    </div>

    <!-- Danger Zone -->
    <div class="danger-section">
        <h3>⚠️ Danger Zone</h3>
        <div class="danger-content">
            <div class="danger-item">
                <div class="danger-info">
                    <h4>System Maintenance</h4>
                    <p>Advanced system operations should be performed with caution. 
                       Always backup the database before making significant changes.</p>
                </div>
                <div class="danger-actions">
                    <button class="btn btn-danger" onclick="alert('Database backup functionality would be implemented here.')">
                        Backup Database
                    </button>
                </div>
            </div>
            
            <div class="danger-item">
                <div class="danger-info">
                    <h4>System Health Check</h4>
                    <p>Run diagnostic checks to identify potential issues with the system.</p>
                </div>
                <div class="danger-actions">
                    <button class="btn btn-warning" onclick="alert('System health check functionality would be implemented here.')">
                        Run Health Check
                    </button>
                </div>
            </div>
        </div>
    </div>

    <!-- Quick Actions -->
    <div class="actions-section">
        <h3>🚀 Quick Actions</h3>
        <div class="actions-grid">
            <a href="{{ url_for('system_admin_users') }}" class="action-card">
                <div class="action-icon">👥</div>
                <div class="action-content">
                    <h4>Manage All Users</h4>
                    <p>View, edit, and manage users across all companies</p>
                </div>
            </a>
            
            <a href="{{ url_for('system_admin_companies') }}" class="action-card">
                <div class="action-icon">🏢</div>
                <div class="action-content">
                    <h4>Manage Companies</h4>
                    <p>View and manage all companies in the system</p>
                </div>
            </a>
            
            <a href="{{ url_for('system_admin_time_entries') }}" class="action-card">
                <div class="action-icon">⏱️</div>
                <div class="action-content">
                    <h4>View Time Entries</h4>
                    <p>Browse time tracking data across all companies</p>
                </div>
            </a>
        </div>
    </div>
</div>

<style>
.header-section {
    margin-bottom: 2rem;
}

.subtitle {
    color: #6c757d;
    margin-bottom: 1rem;
}

.stats-section {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.stats-section h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: #495057;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.stat-card h4 {
    font-size: 2rem;
    margin: 0 0 0.5rem 0;
    color: #007bff;
}

.stat-card p {
    margin: 0;
    color: #6c757d;
    font-weight: 500;
}

.settings-section {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.settings-section h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: #495057;
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.setting-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 1.5rem;
    border: 1px solid #e9ecef;
    border-radius: 8px;
}

.setting-header h4 {
    margin: 0 0 0.5rem 0;
    color: #495057;
}

.setting-header p {
    margin: 0;
    color: #6c757d;
    font-size: 0.9rem;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    margin-bottom: 0.5rem;
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 50px;
    height: 24px;
    background: #ccc;
    border-radius: 24px;
    transition: background 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
}

.toggle-label input[type="checkbox"]:checked + .toggle-slider {
    background: #007bff;
}

.toggle-label input[type="checkbox"]:checked + .toggle-slider::before {
    transform: translateX(26px);
}

.toggle-text {
    font-weight: 500;
    color: #495057;
}

.setting-description {
    color: #6c757d;
    font-size: 0.875rem;
    line-height: 1.4;
}

.form-actions {
    display: flex;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e9ecef;
}

.info-section {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.info-section h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: #495057;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.info-card {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1.5rem;
}

.info-card h4 {
    margin: 0 0 0.5rem 0;
    color: #495057;
    font-size: 1rem;
}

.info-card p {
    margin: 0;
    color: #6c757d;
}

.danger-section {
    background: #f8d7da;
    border: 2px solid #dc3545;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.danger-section h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: #721c24;
}

.danger-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.danger-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #dc3545;
}

.danger-info h4 {
    margin: 0 0 0.5rem 0;
    color: #721c24;
}

.danger-info p {
    margin: 0;
    color: #721c24;
    font-size: 0.9rem;
}

.actions-section {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 2rem;
}

.actions-section h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: #495057;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.action-card {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s;
}

.action-card:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-decoration: none;
    color: inherit;
}

.action-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border-radius: 8px;
}

.action-content h4 {
    margin: 0 0 0.5rem 0;
    color: #495057;
}

.action-content p {
    margin: 0;
    color: #6c757d;
    font-size: 0.875rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

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

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

.btn-secondary:hover {
    background: #545b62;
}

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

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

.btn-warning {
    background: #ffc107;
    color: #212529;
}

.btn-warning:hover {
    background: #e0a800;
}

@media (max-width: 768px) {
    .setting-group {
        grid-template-columns: 1fr;
    }
    
    .danger-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}
</style>
{% endblock %}