Parser Example

parser.php

<?php
// phpcs:disable
require_once __DIR__ . '/../../../wp-load.php';

class Log {
	public string $category;
	public string $date;
	public string $entry = '';
	public $json = null;

	function __construct( $category, $date ) {
		$this->category = $category;
		$this->date     = $date;
	}

	function add( string $entry ) {
		if ( strlen( $this->entry ) > 0 ) {
			$this->entry .= "\n";
		}

		$this->entry .= $entry;
	}

	public function process() {

	}
}

class Request {
	public string $id;
	public array $logs = [];
	public bool $failed = false;

	function __construct( string $id ) {
		$this->id = $id;
	}

	function add_line( int $counter, string $category, string $date, string $entry ) {
		if ( ! isset( $this->logs[ $counter ] ) ) {
			$this->logs[ $counter ] = new Log( $category, $date );
		}

		$this->logs[ $counter ]->add( $entry );
	}

	public function process() {
		// Ignore log counters.
		$this->logs = array_values( $this->logs );

		if ( in_array( 'ERROR', wp_list_pluck( $this->logs, 'category') ) ) {
			$this->failed = true;
		}

		foreach ( $this->logs as $log ) {
			$log->process();
		}
	}
}

class Log_Requests {
	public array $requests = [];

	function get_request( string $id ): Request {
		$last_request = isset( $this->requests[ count( $this->requests ) - 1 ] )
			? $this->requests[ count( $this->requests ) - 1 ]
			: null;

		if ( $last_request && $last_request->id === $id ) {
			return $last_request;
		}

		$request          = new Request( $id );
		$this->requests[] = $request;
		return $request;
	}

	function process(): void {
		foreach ( $this->requests as $request ) {
			$request->process();
		}
	}
}

$requests = new Log_Requests();

$filename = 'woopayments-2024-12-06-421f0e1c50b72a70a5fc34aa2d7d7089.log';
$file     = fopen( WP_CONTENT_DIR . '/uploads/wc-logs/' . $filename, 'r' );
while ( $line = fgets( $file ) ) {
	if ( ! preg_match( '/^(?P<date>[^\s]+)\s(?P<type>\w+)\s(?P<request_id>\w+)-(?P<counter>\d+)\s(?P<entry>.*)$/i', $line, $matches ) ) {
		echo "Line could not be parsed.";
		exit;
	}

	$request_id = $matches['request_id'];
	$counter    = intval( $matches['counter'] );
	$date       = $matches['date'];
	$category   = $matches['type'];
	$entry      = $matches['entry'];

	$request = $requests->get_request( $request_id );

	$request->add_line( $counter, $category, $date, $entry );
}
fclose( $file );

$requests->process();

foreach ( $requests->requests as $request ) {
	echo '<table border="1" style="margin-bottom:3em">';

	$emoji = $request->failed ? '❌' : '✅';
	echo '<tr' . ( $request->failed ? ' style="color:red"' : '') . '>
		<th>' . $emoji . '</th>
		<th>' . $request->id . '</th>
		<th>' . $request->logs[0]->date . '</th>
	</tr>';

	foreach ( $request->logs as $log ) {
		echo '<tr' . ( 'ERROR' === $log->category ? ' style="color:red"' : '') . '>
			<td>' . $log->category . '</td>
			<td>' . $log->date . '</td>
			<td><pre><code>' . $log->entry . '</code></pre></td>
		</tr>';
	}

	echo '</table>';
}