{% extends 'base.html' %}
{% block title %}Maintenance{% endblock %}
{% block content %}
    <h1>Database Maintenance</h1>

    {% with messages = get_flashed_messages(with_categories=true) %}
        {% if messages %}
        <div class="flash-messages">
            {% for category, message in messages %}
            <div class="alert alert-{{ category }}">{{ message }}</div>
            {% endfor %}
        </div>
        {% endif %}
    {% endwith %}
    
    <p>Perform common database maintenance tasks here.</p>

    <hr>

    <h2>Database Statistics</h2>
    <div class="database-stats">
        {% if table_stats %}
            {% for table, row_count in table_stats.items() %}
                <div class="card">
                    <div class="card-header">{{ table }}</div>
                    <div class="card-body">
                        <p>Number of rows: {{ row_count }}</p>
                    </div>
                </div>
            {% endfor %}
        {% else %}
            <p>Could not retrieve database statistics.</p>
        {% endif %}
    </div>

    <hr>

    <h2>Clear Authentication Logs</h2>
    <p>Permanently remove all authentication logs from the database.  This action cannot be undone.</p>
    <form action="/maintenance/clear_auth_logs" method="post">
        <button type="submit" class="btn btn-danger" onclick="return confirm('Are you sure you want to clear all authentication logs? This action is irreversible!')">
            Clear Logs
        </button>
    </form>

    <hr>

    <h2>Database Backup</h2>
    <p>Create a backup of the current database. The backup will be saved as a SQL file.</p>
    <p style="color: red;">
        Warning: Database backups can be very large if you do not clear the authentication logs first.
    </p>
    <form action="/maintenance/backup_database" method="get">
        <button type="submit" class="btn btn-primary">Backup Database</button>
    </form>

    <hr>

    <h2>Database Restore</h2>
    <p>Restore the database from a previously created SQL backup file.  This will overwrite the current database.</p>
    <form action="/maintenance/restore_database" method="post" enctype="multipart/form-data">
        <input type="file" name="file" accept=".sql" required>
        <button type="submit" class="btn btn-danger" onclick="return confirm('Are you sure you want to restore the database from this file?  This will OVERWRITE the current database.')">
            Restore Database
        </button>
    </form>
{% endblock %}