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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Logger;

use
Psr\Log\AbstractLogger;
use
Psr\Log\InvalidArgumentException;
use
Psr\Log\LogLevel;
use
Symfony\Component\Console\Output\ConsoleOutputInterface;
use
Symfony\Component\Console\Output\OutputInterface;

/**
 * PSR-3 compliant console logger.
 *
 * @author Kévin Dunglas <dunglas@gmail.com>
 *
 * @see https://www.php-fig.org/psr/psr-3/
 */
class ConsoleLogger extends AbstractLogger
{
    const
INFO = 'info';
    const
ERROR = 'error';

    private
$output;
    private
$verbosityLevelMap = [
       
LogLevel::EMERGENCY => OutputInterface::VERBOSITY_NORMAL,
       
LogLevel::ALERT => OutputInterface::VERBOSITY_NORMAL,
       
LogLevel::CRITICAL => OutputInterface::VERBOSITY_NORMAL,
       
LogLevel::ERROR => OutputInterface::VERBOSITY_NORMAL,
       
LogLevel::WARNING => OutputInterface::VERBOSITY_NORMAL,
       
LogLevel::NOTICE => OutputInterface::VERBOSITY_VERBOSE,
       
LogLevel::INFO => OutputInterface::VERBOSITY_VERY_VERBOSE,
       
LogLevel::DEBUG => OutputInterface::VERBOSITY_DEBUG,
    ];
    private
$formatLevelMap = [
       
LogLevel::EMERGENCY => self::ERROR,
       
LogLevel::ALERT => self::ERROR,
       
LogLevel::CRITICAL => self::ERROR,
       
LogLevel::ERROR => self::ERROR,
       
LogLevel::WARNING => self::INFO,
       
LogLevel::NOTICE => self::INFO,
       
LogLevel::INFO => self::INFO,
       
LogLevel::DEBUG => self::INFO,
    ];
    private
$errored = false;

    public function
__construct(OutputInterface $output, array $verbosityLevelMap = [], array $formatLevelMap = [])
    {
       
$this->output = $output;
       
$this->verbosityLevelMap = $verbosityLevelMap + $this->verbosityLevelMap;
       
$this->formatLevelMap = $formatLevelMap + $this->formatLevelMap;
    }

   
/**
     * {@inheritdoc}
     *
     * @return void
     */
   
public function log($level, $message, array $context = [])
    {
        if (!isset(
$this->verbosityLevelMap[$level])) {
            throw new
InvalidArgumentException(sprintf('The log level "%s" does not exist.', $level));
        }

       
$output = $this->output;

       
// Write to the error output if necessary and available
       
if (self::ERROR === $this->formatLevelMap[$level]) {
            if (
$this->output instanceof ConsoleOutputInterface) {
               
$output = $output->getErrorOutput();
            }
           
$this->errored = true;
        }

       
// the if condition check isn't necessary -- it's the same one that $output will do internally anyway.
        // We only do it for efficiency here as the message formatting is relatively expensive.
       
if ($output->getVerbosity() >= $this->verbosityLevelMap[$level]) {
           
$output->writeln(sprintf('<%1$s>[%2$s] %3$s</%1$s>', $this->formatLevelMap[$level], $level, $this->interpolate($message, $context)), $this->verbosityLevelMap[$level]);
        }
    }

   
/**
     * Returns true when any messages have been logged at error levels.
     *
     * @return bool
     */
   
public function hasErrored()
    {
        return
$this->errored;
    }

   
/**
     * Interpolates context values into the message placeholders.
     *
     * @author PHP Framework Interoperability Group
     */
   
private function interpolate(string $message, array $context): string
   
{
        if (
false === strpos($message, '{')) {
            return
$message;
        }

       
$replacements = [];
        foreach (
$context as $key => $val) {
            if (
null === $val || is_scalar($val) || (\is_object($val) && method_exists($val, '__toString'))) {
               
$replacements["{{$key}}"] = $val;
            } elseif (
$val instanceof \DateTimeInterface) {
               
$replacements["{{$key}}"] = $val->format(\DateTime::RFC3339);
            } elseif (\
is_object($val)) {
               
$replacements["{{$key}}"] = '[object '.\get_class($val).']';
            } else {
               
$replacements["{{$key}}"] = '['.\gettype($val).']';
            }
        }

        return
strtr($message, $replacements);
    }
}