BaseCommand.php

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<?php
 
namespace Elgg\Cli;
 
use Elgg\Exceptions\RuntimeException;
use Elgg\Traits\Loggable;
use Psr\Log\LogLevel;
use Symfony\Component\Console\Helper\FormatterHelper;
use Symfony\Component\Console\Helper\QuestionHelper;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\Question;
use Symfony\Component\VarDumper\VarDumper;
 
abstract class BaseCommand extends \Symfony\Component\Console\Command\Command {
 
    use Loggable;
 
    const DEFAULT_VERBOSITY = OutputInterface::VERBOSITY_NORMAL;
 
    protected $input;
 
    protected $output;
 
    public function ask($question, $default = null, $hidden = false, $required = true) {
        /* @var $helper QuestionHelper */
        $helper = $this->getHelper('question');
 
        $question = trim($question);
        $question = rtrim($question, ':');
        if (is_scalar($default) && !is_bool($default)) {
            $question .= " [{$default}]";
        }
        
        $question .= ': ';
        
        $q = new Question($question, $default);
 
        if ($hidden) {
            $q->setHidden(true);
            $q->setHiddenFallback(false);
        }
 
        if ($required) {
            $q->setValidator([
                $this,
                'assertNotEmpty'
            ]);
            $q->setMaxAttempts(2);
        }
 
        return $helper->ask($this->input, $this->output, $q);
    }
 
    final public function dump($data) {
        VarDumper::dump($data);
    }
 
    final public function write($messages, $level = LogLevel::INFO) {
        $formatter = new FormatterHelper();
 
        switch ($level) {
            case LogLevel::EMERGENCY:
            case LogLevel::CRITICAL:
            case LogLevel::ALERT:
            case LogLevel::ERROR:
                $style = 'error';
                break;
 
            case LogLevel::WARNING:
                $style = 'comment';
                break;
 
            default:
                $style = 'info';
                break;
        }
 
        $message = $formatter->formatBlock($messages, $style);
        $this->output->writeln($message);
    }
 
    public function error($message) {
        $this->write($message, LogLevel::ERROR);
    }
 
    public function notice($message) {
        $this->write($message, LogLevel::NOTICE);
    }
 
    public function option($name) {
        return $this->input->getOption($name);
    }
 
    public function argument($name) {
        return $this->input->getArgument($name);
    }
 
    public function assertNotEmpty($answer) {
        if (empty($answer)) {
            throw new RuntimeException('Please enter a required answer');
        }
 
        return $answer;
    }
 
    final protected function dumpRegisters() {
        $registers = _elgg_services()->system_messages->loadRegisters();
 
        foreach ($registers as $prop => $values) {
            if (!empty($values)) {
                foreach ($values as $msg) {
                    $prop == 'error' ? $this->error($msg) : $this->notice($msg);
                }
            }
        }
    }
}