<?php
declare(strict_types=1);

require_once __DIR__ . '/db.php';

if ($_SERVER['REQUEST_METHOD'] !== 'GET') {
    error_out('Method not allowed', 405);
}

// ─── GET /api/workshops.php ───────────────────────────────────────────────────
// Returns all workshop sessions with their registered attendee count.

try {
    $rows = db()->query(
        'SELECT ws.id, ws.workshop_name, ws.workshop_time,
                COUNT(r.id) AS attendee_count
         FROM workshop_sessions ws
         LEFT JOIN registrations r ON r.workshop_session_id = ws.id
         GROUP BY ws.id
         ORDER BY ws.workshop_time'
    )->fetchAll();

    json_out(['workshops' => $rows]);
} catch (PDOException $e) {
    error_out('Database error: ' . $e->getMessage(), 500);
}