<?php
session_start();
require_once 'db/config.php';
require_once 'includes/admin_auth.php';

if (!admin_is_logged_in()) {
    header('Location: login.php');
    exit;
}

if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['id']) && is_numeric($_POST['id'])) {
    $id = (int) $_POST['id'];
    $pdo = db();
    $stmt = $pdo->prepare('UPDATE attendees SET deleted_at = NOW() WHERE id = ? AND deleted_at IS NULL');
    $stmt->execute([$id]);

    if ($stmt->rowCount() > 0) {
        admin_set_flash("Attendee #{$id} has been archived successfully.");
    } else {
        admin_set_flash("No active attendee found for ID #{$id}.");
    }
} else {
    admin_set_flash('Error: Invalid archive request.');
}

header('Location: admin.php');
exit;