Universal Multi-Media Broadcast Engine (copyMessage)

<?php
// ── Botlify Cloud .env — auto-injected, never hardcode secrets ──
$BOT_TOKEN     = getenv('BOT_TOKEN');     // Telegram bot token from @BotFather
$ADMIN_CHAT_ID = getenv('ADMIN_CHAT_ID'); // Your numeric admin Telegram user ID
$BOT_USERNAME  = getenv('BOT_USERNAME');  // Bot username without @

declare(strict_types=1);

// Admin Broadcast Message Handler
if ($state === 'awaiting_broadcast_message' && (string)$chatId === ADMIN_CHAT_ID) {
    clearState($chatId);
    bot('sendChatAction', ['chat_id' => $chatId, 'action' => 'typing']);
    $msgId = (int)($msg['message_id'] ?? 0);

    $users = $pdo->query('SELECT chat_id FROM users WHERE is_banned = 0')->fetchAll();
    $sent = 0;
    $failed = 0;

    foreach ($users as $u) {
        $targetId = (string)$u['chat_id'];
        $r = bot('copyMessage', [
            'chat_id'      => $targetId,
            'from_chat_id' => $chatId,
            'message_id'   => $msgId
        ]);
        if (!empty($r['ok'])) {
            $sent++;
        } else {
            $failed++;
        }
        usleep(38000); // 38ms safe rate limiting (~26 messages/sec)
    }

    bot('sendMessage', [
        'chat_id'      => $chatId,
        'text'         => "📢 Universal Broadcast Complete!\n━━━━━━━━━━━━━━━━━━━━━\n• Successfully Delivered: {$sent}\n• Failed / Blocked: {$failed}",
        'parse_mode'   => 'HTML',
        'reply_markup' => getAdminKeyboard()
    ]);
    exit;
}