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Filename : ListCommands.php
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<?php

/**
 * This file is part of CodeIgniter 4 framework.
 *
 * (c) CodeIgniter Foundation <admin@codeigniter.com>
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace CodeIgniter\Commands;

use CodeIgniter\CLI\BaseCommand;
use CodeIgniter\CLI\CLI;

/**
 * CI Help command for the spark script.
 *
 * Lists the basic usage information for the spark script,
 * and provides a way to list help for other commands.
 */
class ListCommands extends BaseCommand
{
    /**
     * The group the command is lumped under
     * when listing commands.
     *
     * @var string
     */
    protected $group = 'CodeIgniter';

    /**
     * The Command's name
     *
     * @var string
     */
    protected $name = 'list';

    /**
     * the Command's short description
     *
     * @var string
     */
    protected $description = 'Lists the available commands.';

    /**
     * the Command's usage
     *
     * @var string
     */
    protected $usage = 'list';

    /**
     * the Command's Arguments
     *
     * @var array
     */
    protected $arguments = [];

    /**
     * the Command's Options
     *
     * @var array
     */
    protected $options = [
        '--simple' => 'Prints a list of the commands with no other info',
    ];

    /**
     * Displays the help for the spark cli script itself.
     */
    public function run(array $params)
    {
        $commands = $this->commands->getCommands();
        ksort($commands);

        // Check for 'simple' format
        return array_key_exists('simple', $params) || CLI::getOption('simple')
            ? $this->listSimple($commands)
            : $this->listFull($commands);
    }

    /**
     * Lists the commands with accompanying info.
     */
    protected function listFull(array $commands)
    {
        // Sort into buckets by group
        $groups = [];

        foreach ($commands as $title => $command) {
            if (! isset($groups[$command['group']])) {
                $groups[$command['group']] = [];
            }

            $groups[$command['group']][$title] = $command;
        }

        $length = max(array_map('strlen', array_keys($commands)));

        ksort($groups);

        // Display it all...
        foreach ($groups as $group => $commands) {
            CLI::write($group, 'yellow');

            foreach ($commands as $name => $command) {
                $name   = $this->setPad($name, $length, 2, 2);
                $output = CLI::color($name, 'green');

                if (isset($command['description'])) {
                    $output .= CLI::wrap($command['description'], 125, strlen($name));
                }

                CLI::write($output);
            }

            if ($group !== array_key_last($groups)) {
                CLI::newLine();
            }
        }
    }

    /**
     * Lists the commands only.
     */
    protected function listSimple(array $commands)
    {
        foreach (array_keys($commands) as $title) {
            CLI::write($title);
        }
    }
}