<?php
/**
 * notify_node — fire-and-forget event push to the Node.js real-time server.
 *
 * Call this AFTER a successful DB commit. It never throws — if Node is down
 * the request times out silently in 1 second.
 *
 * @param string $event      Event name, e.g. 'gl_posted'
 * @param array  $data       Payload sent to the browser
 * @param int    $company_id Scopes the broadcast to one company's room
 */
function notify_node(string $event, array $data, int $company_id): void
{
    if ($company_id <= 0) return;

    $body = json_encode([
        'event'      => $event,
        'data'       => $data,
        'company_id' => $company_id,
    ]);

    $ch = curl_init(defined('NODE_EMIT_URL') ? NODE_EMIT_URL : 'http://127.0.0.1:3000/emit');
    curl_setopt_array($ch, [
        CURLOPT_POST           => true,
        CURLOPT_POSTFIELDS     => $body,
        CURLOPT_HTTPHEADER     => [
            'Content-Type: application/json',
            'x-emit-secret: ' . (defined('NODE_EMIT_SECRET') ? NODE_EMIT_SECRET : ''),
        ],
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT        => 1,    // never block PHP
        CURLOPT_CONNECTTIMEOUT => 1,
    ]);
    curl_exec($ch);
    curl_close($ch);
}

function gl_posted_payload(string $doc_type, int $id, string $action, array $lines): array
{
    $has_revenue = false;
    $has_expense = false;

    foreach ($lines as $line) {
        $code = (int)($line['account_code'] ?? 0);
        if ($code >= 4000 && $code < 5000) $has_revenue = true;
        if ($code >= 5000)                 $has_expense = true;
    }

    return [
        'doc_type'    => $doc_type,
        'id'          => $id,
        'action'      => $action,
        'has_revenue' => $has_revenue,
        'has_expense' => $has_expense,
    ];
}