livecoding-console/src/Deblan/Command/StreamsCommand.php

<?php

namespace Deblan\Command;

use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Command\Command;
use Exception;

class StreamsCommand extends Command
{
    protected function configure()
    {
        $this
            ->setName('streams')
            ->setDescription('List available streams.')
            ->addOption('language', null, InputOption::VALUE_REQUIRED, '')
            ->addOption('difficulty', null, InputOption::VALUE_REQUIRED, '')
            ->setHelp('The <info>%command.name%</info> lists live streams');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $liveCoding = $this->getApplication()->getContainer()['livecoding'];
        $languages = $liveCoding->getLanguages();
        $difficulties = $liveCoding->getDifficulties();

        $language = $input->getOption('language');
        $difficulty = $input->getOption('difficulty');

        if (in_array($language, $languages)) {
            $language = array_keys($languages, $language)[0];
        } elseif (!in_array($language, array_keys($languages))) {
            if ($language !== null) {
                $output->writeln('<info>language</info> available values:');

                foreach ($liveCoding->getLanguages() as $key => $value) {
                    $output->writeln(sprintf(
                        ' <comment>%s</comment> or <comment>%s</comment>',
                        $key,
                        $value
                    ));
                }

                $output->writeln('');
            }

            $language = null;
        }

        if (in_array($difficulty, array_keys($difficulties))) {
            $difficulty = $difficulties[$difficulty];
        } elseif (!in_array($difficulty, $difficulties)) {
            if ($difficulty !== null) {
                $output->writeln('<info>difficulty</info> available values:');

                foreach ($liveCoding->getDifficulties() as $key => $value) {
                    $output->writeln(sprintf(
                        ' <comment>%s</comment> or <comment>%s</comment>',
                        $key,
                        $value
                    ));
                }

                $output->writeln('');
            }

            $difficulty = null;
        }

        try {
            $streams = $liveCoding->getStreams($language, $difficulty);

            foreach ($streams as $stream) {
                $output->writeln(sprintf(
                    '<comment>%s</comment>',
                    $stream->getTitle()
                ));

                $output->writeln(sprintf(
                    '<comment>%s</comment>',
                    str_repeat('-', mb_strlen($stream->getTitle()))
                ));

                $output->writeln(sprintf(
                    '<info>Author:</info> %s',
                    $stream->getAuthor()
                ));

                if (count($stream->getLanguages())) {
                    $output->writeln(sprintf(
                        '<info>Languages:</info> %s',
                        implode(', ', $stream->getLanguages())
                    ));

                    $output->writeln(sprintf(
                        '<info>Difficulty:</info> %s',
                        $stream->getDifficulty()
                    ));
                }

                $output->writeln(sprintf(
                    '<info>URL:</info> %s',
                    $stream->getUrl()
                ));

                $output->writeln(sprintf(
                    '<info>Views:</info> %d',
                    $stream->getViews()
                ));

                $output->writeln('');
            }
        } catch (Exception $e) {
            $output->writeln(sprintf('<error>%s</error>', $e->getMessage()));
        }
    }
}