Subversion-Projekte lars-tiefland.laravel_shop

<?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\Question;

use Symfony\Component\Console\Exception\InvalidArgumentException;

/**

 * Represents a choice question.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class ChoiceQuestion extends Question

{

    private array $choices;

    private bool $multiselect = false;

    private string $prompt = ' > ';

    private string $errorMessage = 'Value "%s" is invalid';

    /**

     * @param string $question The question to ask to the user

     * @param array  $choices  The list of available choices

     * @param mixed  $default  The default answer to return

     */

    public function __construct(string $question, array $choices, mixed $default = null)

    {

        if (!$choices) {

            throw new \LogicException('Choice question must have at least 1 choice available.');

        }

        parent::__construct($question, $default);

        $this->choices = $choices;

        $this->setValidator($this->getDefaultValidator());

        $this->setAutocompleterValues($choices);

    }

    /**

     * Returns available choices.

     */

    public function getChoices(): array

    {

        return $this->choices;

    }

    /**

     * Sets multiselect option.

     *

     * When multiselect is set to true, multiple choices can be answered.

     *

     * @return $this

     */

    public function setMultiselect(bool $multiselect): static

    {

        $this->multiselect = $multiselect;

        $this->setValidator($this->getDefaultValidator());

        return $this;

    }

    /**

     * Returns whether the choices are multiselect.

     */

    public function isMultiselect(): bool

    {

        return $this->multiselect;

    }

    /**

     * Gets the prompt for choices.

     */

    public function getPrompt(): string

    {

        return $this->prompt;

    }

    /**

     * Sets the prompt for choices.

     *

     * @return $this

     */

    public function setPrompt(string $prompt): static

    {

        $this->prompt = $prompt;

        return $this;

    }

    /**

     * Sets the error message for invalid values.

     *

     * The error message has a string placeholder (%s) for the invalid value.

     *

     * @return $this

     */

    public function setErrorMessage(string $errorMessage): static

    {

        $this->errorMessage = $errorMessage;

        $this->setValidator($this->getDefaultValidator());

        return $this;

    }

    private function getDefaultValidator(): callable

    {

        $choices = $this->choices;

        $errorMessage = $this->errorMessage;

        $multiselect = $this->multiselect;

        $isAssoc = $this->isAssoc($choices);

        return function ($selected) use ($choices, $errorMessage, $multiselect, $isAssoc) {

            if ($multiselect) {

                // Check for a separated comma values

                if (!preg_match('/^[^,]+(?:,[^,]+)*$/', (string) $selected, $matches)) {

                    throw new InvalidArgumentException(sprintf($errorMessage, $selected));

                }

                $selectedChoices = explode(',', (string) $selected);

            } else {

                $selectedChoices = [$selected];

            }

            if ($this->isTrimmable()) {

                foreach ($selectedChoices as $k => $v) {

                    $selectedChoices[$k] = trim((string) $v);

                }

            }

            $multiselectChoices = [];

            foreach ($selectedChoices as $value) {

                $results = [];

                foreach ($choices as $key => $choice) {

                    if ($choice === $value) {

                        $results[] = $key;

                    }

                }

                if (\count($results) > 1) {

                    throw new InvalidArgumentException(sprintf('The provided answer is ambiguous. Value should be one of "%s".', implode('" or "', $results)));

                }

                $result = array_search($value, $choices);

                if (!$isAssoc) {

                    if (false !== $result) {

                        $result = $choices[$result];

                    } elseif (isset($choices[$value])) {

                        $result = $choices[$value];

                    }

                } elseif (false === $result && isset($choices[$value])) {

                    $result = $value;

                }

                if (false === $result) {

                    throw new InvalidArgumentException(sprintf($errorMessage, $value));

                }

                // For associative choices, consistently return the key as string:

                $multiselectChoices[] = $isAssoc ? (string) $result : $result;

            }

            if ($multiselect) {

                return $multiselectChoices;

            }

            return current($multiselectChoices);

        };

    }

}