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<?php
declare(strict_types=1);
interface Logger
{
public const DEBUG = 10;
public const INFO = 20;
public const WARNING = 30;
public const ERROR = 40;
public const LEVEL_NAMES = [
self::DEBUG => 'DEBUG',
self::INFO => 'INFO',
self::WARNING => 'WARNING',
self::ERROR => 'ERROR',
];
public function debug(string $message, array $context = []);
public function info(string $message, array $context = []): void;
public function warning(string $message, array $context = []): void;
public function error(string $message, array $context = []): void;
}
final class SimpleLogger implements Logger
{
private string $name;
private array $handlers;
/**
* @param callable[] $handlers
*/
public function __construct(
string $name,
array $handlers = []
) {
$this->name = $name;
$this->handlers = $handlers;
}
public function addHandler(callable $fn)
{
$this->handlers[] = $fn;
}
public function debug(string $message, array $context = [])
{
$this->log(self::DEBUG, $message, $context);
}
public function info(string $message, array $context = []): void
{
$this->log(self::INFO, $message, $context);
}
public function warning(string $message, array $context = []): void
{
$this->log(self::WARNING, $message, $context);
}
public function error(string $message, array $context = []): void
{
$this->log(self::ERROR, $message, $context);
}
private function log(int $level, string $message, array $context = []): void
{
$ignoredMessages = [
'Format name invalid',
'Unknown format given',
'Unable to find channel',
];
foreach ($ignoredMessages as $ignoredMessage) {
if (str_starts_with($message, $ignoredMessage)) {
return;
}
}
foreach ($this->handlers as $handler) {
$handler([
'name' => $this->name,
'created_at' => now(),
'level' => $level,
'level_name' => self::LEVEL_NAMES[$level],
'message' => $message,
'context' => $context,
]);
}
}
}
final class StreamHandler
{
private string $stream;
private int $level;
public function __construct(string $stream, int $level = Logger::DEBUG)
{
$this->stream = $stream;
$this->level = $level;
}
public function __invoke(array $record)
{
if ($record['level'] < $this->level) {
return;
}
if (isset($record['context']['e'])) {
/** @var \Throwable $e */
$e = $record['context']['e'];
unset($record['context']['e']);
$record['context']['type'] = get_class($e);
$record['context']['code'] = $e->getCode();
$record['context']['message'] = sanitize_root($e->getMessage());
$record['context']['file'] = sanitize_root($e->getFile());
$record['context']['line'] = $e->getLine();
$record['context']['url'] = get_current_url();
$record['context']['trace'] = trace_to_call_points(trace_from_exception($e));
}
$context = '';
if ($record['context']) {
try {
$context = Json::encode($record['context']);
} catch (\JsonException $e) {
$record['context']['message'] = null;
$context = Json::encode($record['context']);
}
}
$text = sprintf(
"[%s] %s.%s %s %s\n",
$record['created_at']->format('Y-m-d H:i:s'),
$record['name'],
$record['level_name'],
$record['message'],
$context
);
$bytes = file_put_contents($this->stream, $text, FILE_APPEND);
}
}
final class ErrorLogHandler
{
private int $level;
public function __construct(int $level = Logger::DEBUG)
{
$this->level = $level;
}
public function __invoke(array $record)
{
if ($record['level'] < $this->level) {
return;
}
if (isset($record['context']['e'])) {
/** @var \Throwable $e */
$e = $record['context']['e'];
unset($record['context']['e']);
$record['context']['type'] = get_class($e);
$record['context']['code'] = $e->getCode();
$record['context']['message'] = sanitize_root($e->getMessage());
$record['context']['file'] = sanitize_root($e->getFile());
$record['context']['line'] = $e->getLine();
$record['context']['url'] = get_current_url();
$record['context']['trace'] = trace_to_call_points(trace_from_exception($e));
}
$context = '';
if ($record['context']) {
try {
$context = Json::encode($record['context']);
} catch (\JsonException $e) {
$record['context']['message'] = null;
$context = Json::encode($record['context']);
}
}
// Intentionally omitting newline
$text = sprintf(
'[%s] %s.%s %s %s',
$record['created_at']->format('Y-m-d H:i:s'),
$record['name'],
$record['level_name'],
$record['message'],
$context
);
error_log($text);
}
}
final class NullLogger implements Logger
{
public function debug(string $message, array $context = [])
{
}
public function info(string $message, array $context = []): void
{
}
public function warning(string $message, array $context = []): void
{
}
public function error(string $message, array $context = []): void
{
}
}
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