improve log level formtting

src/APnutI.php

@@ -14,10 +14,12 @@ use APnutI\Exceptions\NotSupportedPollException;
 use APnutI\Exceptions\HttpPnutForbiddenException;
 use APnutI\Exceptions\PollAccessRestrictedException;
 use APnutI\Meta;
+use APnutI\Logger\LevelNamePaddingProcessor;
 use Monolog\Logger;
 use Monolog\Handler\RotatingFileHandler;
 use Monolog\Handler\StreamHandler;
 use Monolog\Handler\SyslogHandler;
+use Monolog\Formatter\LineFormatter;
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
 
@@ -88,6 +90,7 @@ class APnutI
         if (!empty($app_name)) {
             $this->app_name = $app_name;
         }
+
         if (empty($log_level)) {
             $log_level = Logger::INFO;
         } elseif (is_string($log_level)) {
@@ -98,18 +101,26 @@ class APnutI
             : new Logger($this->app_name);
         $this->token_session_key = $this->app_name . 'access_token';
         $this->token_redirect_after_auth = $this->app_name . 'redirect_after_auth';
+
+        $this->logger->pushProcessor(new LevelNamePaddingProcessor());
+        $formatter = new LineFormatter("[%datetime%] %channel%.%extra.level_padded%: %message% %context% %extra%\n");
+
         if ($use_rotating_file_handler) {
             $handler = new RotatingFileHandler($log_path, 5, $log_level, true);
+            $handler->setFormatter($formatter);
             $this->logger->pushHandler($handler);
         }
         if ($use_stream_handler) {
             $handler = new StreamHandler($log_path, $log_level, true);
+            $handler->setFormatter($formatter);
             $this->logger->pushHandler($handler);
         }
         if ($use_syslog_handler) {
             $handler = new SyslogHandler($this->app_name, \LOG_USER, $log_level, true);
+            $handler->setFormatter($formatter);
             $this->logger->pushHandler($handler);
         }
+
         $this->server_token = null;
         $this->logger->debug('__construct API');
         if (isset($_SESSION[$this->token_session_key])) {

src/Logger/LevelNamePaddingProcessor.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace APnutI\Logger;
+
+use Monolog\Processor\ProcessorInterface;
+use Monolog\LogRecord;
+
+// See: https://stackoverflow.com/a/78901964
+class LevelNamePaddingProcessor implements ProcessorInterface
+{
+    public function __invoke(LogRecord $record): LogRecord
+    {
+        $record->extra['level_padded'] = str_pad($record->level->getName(), 6, ' ', STR_PAD_RIGHT);
+
+        return $record;
+    }
+}