prepare("SELECT * FROM users WHERE id = ?");
$stmt->execute([$current_user_id]);
$user = $stmt->fetch();
if (!$user) {
session_destroy();
header("Location: login.php");
exit;
}
$user_role = $user['role'];
// Blocked users filter
$stmt = db()->prepare("SELECT blocked_id FROM blocked_users WHERE blocker_id = ?");
$stmt->execute([$current_user_id]);
$blocked_ids = $stmt->fetchAll(PDO::FETCH_COLUMN);
$stmt = db()->prepare("SELECT blocker_id FROM blocked_users WHERE blocked_id = ?");
$stmt->execute([$current_user_id]);
$blocked_by_ids = $stmt->fetchAll(PDO::FETCH_COLUMN);
$all_blocked = array_unique(array_merge($blocked_ids, $blocked_by_ids));
$placeholders = empty($all_blocked) ? "0" : implode(',', array_fill(0, count($all_blocked), '?'));
// Leaderboard: Most Followed This Week
$sql = "
SELECT s.id, s.name, s.description, u.full_name as founder_name, COUNT(sf.id) as followers_count
FROM startups s
JOIN users u ON s.founder_id = u.id
JOIN startup_followers sf ON s.id = sf.startup_id
WHERE sf.created_at >= DATE_SUB(NOW(), INTERVAL 7 DAY)
AND u.id NOT IN ($placeholders)
GROUP BY s.id
ORDER BY followers_count DESC
LIMIT 10
";
$stmt = db()->prepare($sql);
$stmt->execute($all_blocked ?: []);
$mostFollowed = $stmt->fetchAll();
// Leaderboard: Most Funded This Week
$sql = "
SELECT s.id, s.name, s.description, u.full_name as founder_name, SUM(i.amount) as funded_amount
FROM startups s
JOIN users u ON s.founder_id = u.id
JOIN investments i ON s.id = i.startup_id
WHERE i.status = 'approved' AND i.created_at >= DATE_SUB(NOW(), INTERVAL 7 DAY)
AND u.id NOT IN ($placeholders)
GROUP BY s.id
ORDER BY funded_amount DESC
LIMIT 10
";
$stmt = db()->prepare($sql);
$stmt->execute($all_blocked ?: []);
$mostFunded = $stmt->fetchAll();
// Search logic
$q = $_GET['q'] ?? '';
$browseStartups = [];
$where = "s.status = 'public' AND u.id NOT IN ($placeholders)";
$params = $all_blocked ?: [];
if ($q) {
$where .= " AND (s.name LIKE ? OR s.description LIKE ? OR u.full_name LIKE ?)";
$params[] = "%$q%";
$params[] = "%$q%";
$params[] = "%$q%";
}
$stmt = db()->prepare("
SELECT s.*, u.full_name as founder_name
FROM startups s
JOIN users u ON s.founder_id = u.id
WHERE $where
ORDER BY s.created_at DESC
LIMIT 20
");
$stmt->execute($params);
$browseStartups = $stmt->fetchAll();
$platformName = defined('PLATFORM_NAME') ? PLATFORM_NAME : 'Gatsby';
?>
Discovery Hub — <?= htmlspecialchars($platformName) ?>