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1<?php
2declare(strict_types=1);
3/**
4 * Pop PHP Framework (https://www.popphp.org/)
5 *
6 * @link       https://github.com/popphp/popphp-framework
7 * @author     Nick Sagona, III <dev@noladev.com>
8 * @copyright  Copyright (c) 2009-2027 NOLA Interactive, LLC.
9 * @license    https://www.popphp.org/license     New BSD License
10 */
11
12/**
13 * @namespace
14 */
15namespace Pop\Log\Formatter;
16
17/**
18 * NDJSON (JSON Lines) formatter — one self-contained JSON object per line
19 *
20 * @category   Pop
21 * @package    Pop\Log
22 * @author     Nick Sagona, III <dev@noladev.com>
23 * @copyright  Copyright (c) 2009-2027 NOLA Interactive, LLC.
24 * @license    https://www.popphp.org/license     New BSD License
25 * @version    5.0.0
26 */
27class NdJson implements FormatterInterface
28{
29
30    /**
31     * Format a single log entry into a self-contained JSON object
32     *
33     * @param  string $level
34     * @param  string $message
35     * @param  array  $context
36     * @return string
37     */
38    public function format(string $level, string $message, array $context): string
39    {
40        $timestamp = $context['timestamp'];
41        $name      = $context['name'];
42        unset($context['timestamp'], $context['name'], $context['format']);
43
44        $encoded = json_encode([
45            'timestamp' => $timestamp,
46            'level'     => $level,
47            'name'      => $name,
48            'message'   => $message,
49            'context'   => (object)$context,
50        ], JSON_INVALID_UTF8_SUBSTITUTE | JSON_PARTIAL_OUTPUT_ON_ERROR);
51
52        return ($encoded !== false) ? $encoded : '{}';
53    }
54
55}