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Current File : //home2/vacivi36/code/vendor/friendsofphp/php-cs-fixer/src/Documentation/FixerDocumentGenerator.php

<?php

declare(strict_types=1);

/*
 * This file is part of PHP CS Fixer.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace PhpCsFixer\Documentation;

use PhpCsFixer\Console\Command\HelpCommand;
use PhpCsFixer\Differ\FullDiffer;
use PhpCsFixer\Fixer\ConfigurableFixerInterface;
use PhpCsFixer\Fixer\DeprecatedFixerInterface;
use PhpCsFixer\Fixer\FixerInterface;
use PhpCsFixer\FixerConfiguration\AliasedFixerOption;
use PhpCsFixer\FixerConfiguration\AllowedValueSubset;
use PhpCsFixer\FixerConfiguration\DeprecatedFixerOptionInterface;
use PhpCsFixer\FixerDefinition\CodeSampleInterface;
use PhpCsFixer\FixerDefinition\FileSpecificCodeSampleInterface;
use PhpCsFixer\FixerDefinition\VersionSpecificCodeSampleInterface;
use PhpCsFixer\Preg;
use PhpCsFixer\RuleSet\RuleSet;
use PhpCsFixer\RuleSet\RuleSets;
use PhpCsFixer\StdinFileInfo;
use PhpCsFixer\Tokenizer\Tokens;
use PhpCsFixer\Utils;

/**
 * @internal
 */
final class FixerDocumentGenerator
{
    private DocumentationLocator $locator;

    private FullDiffer $differ;

    public function __construct(DocumentationLocator $locator)
    {
        $this->locator = $locator;
        $this->differ = new FullDiffer();
    }

    public function generateFixerDocumentation(FixerInterface $fixer): string
    {
        $name = $fixer->getName();
        $title = "Rule ``{$name}``";
        $titleLine = str_repeat('=', \strlen($title));
        $doc = "{$titleLine}\n{$title}\n{$titleLine}";

        $definition = $fixer->getDefinition();
        $doc .= "\n\n".RstUtils::toRst($definition->getSummary());

        $description = $definition->getDescription();

        if (null !== $description) {
            $description = RstUtils::toRst($description);
            $doc .= <<<RST


Description
-----------

{$description}
RST;
        }

        $deprecationDescription = '';

        if ($fixer instanceof DeprecatedFixerInterface) {
            $deprecationDescription = <<<'RST'

This rule is deprecated and will be removed on next major version
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
RST;
            $alternatives = $fixer->getSuccessorsNames();

            if (0 !== \count($alternatives)) {
                $deprecationDescription .= RstUtils::toRst(sprintf(
                    "\n\nYou should use %s instead.",
                    Utils::naturalLanguageJoinWithBackticks($alternatives)
                ), 0);
            }
        }

        $riskyDescription = '';
        $riskyDescriptionRaw = $definition->getRiskyDescription();

        if (null !== $riskyDescriptionRaw) {
            $riskyDescriptionRaw = RstUtils::toRst($riskyDescriptionRaw, 0);
            $riskyDescription = <<<RST

Using this rule is risky
~~~~~~~~~~~~~~~~~~~~~~~~

{$riskyDescriptionRaw}
RST;
        }

        if ($deprecationDescription || $riskyDescription) {
            $warningsHeader = 'Warning';

            if ($deprecationDescription && $riskyDescription) {
                $warningsHeader = 'Warnings';
            }

            $warningsHeaderLine = str_repeat('-', \strlen($warningsHeader));
            $doc .= "\n\n".implode("\n", array_filter([
                $warningsHeader,
                $warningsHeaderLine,
                $deprecationDescription,
                $riskyDescription,
            ]));
        }

        if ($fixer instanceof ConfigurableFixerInterface) {
            $doc .= <<<'RST'


Configuration
-------------
RST;

            $configurationDefinition = $fixer->getConfigurationDefinition();

            foreach ($configurationDefinition->getOptions() as $option) {
                $optionInfo = "``{$option->getName()}``";
                $optionInfo .= "\n".str_repeat('~', \strlen($optionInfo));

                if ($option instanceof DeprecatedFixerOptionInterface) {
                    $deprecationMessage = RstUtils::toRst($option->getDeprecationMessage());
                    $optionInfo .= "\n\n.. warning:: This option is deprecated and will be removed on next major version. {$deprecationMessage}";
                }

                $optionInfo .= "\n\n".RstUtils::toRst($option->getDescription());

                if ($option instanceof AliasedFixerOption) {
                    $optionInfo .= "\n\n.. note:: The previous name of this option was ``{$option->getAlias()}`` but it is now deprecated and will be removed on next major version.";
                }

                $allowed = HelpCommand::getDisplayableAllowedValues($option);

                if (null === $allowed) {
                    $allowedKind = 'Allowed types';
                    $allowed = array_map(
                        static fn ($value): string => '``'.$value.'``',
                        $option->getAllowedTypes(),
                    );
                } else {
                    $allowedKind = 'Allowed values';
                    $allowed = array_map(static function ($value): string {
                        return $value instanceof AllowedValueSubset
                            ? 'a subset of ``'.HelpCommand::toString($value->getAllowedValues()).'``'
                            : '``'.HelpCommand::toString($value).'``';
                    }, $allowed);
                }

                $allowed = implode(', ', $allowed);
                $optionInfo .= "\n\n{$allowedKind}: {$allowed}";

                if ($option->hasDefault()) {
                    $default = HelpCommand::toString($option->getDefault());
                    $optionInfo .= "\n\nDefault value: ``{$default}``";
                } else {
                    $optionInfo .= "\n\nThis option is required.";
                }

                $doc .= "\n\n{$optionInfo}";
            }
        }

        $samples = $definition->getCodeSamples();

        if (0 !== \count($samples)) {
            $doc .= <<<'RST'


Examples
--------
RST;

            foreach ($samples as $index => $sample) {
                $title = sprintf('Example #%d', $index + 1);
                $titleLine = str_repeat('~', \strlen($title));
                $doc .= "\n\n{$title}\n{$titleLine}";

                if ($fixer instanceof ConfigurableFixerInterface) {
                    if (null === $sample->getConfiguration()) {
                        $doc .= "\n\n*Default* configuration.";
                    } else {
                        $doc .= sprintf(
                            "\n\nWith configuration: ``%s``.",
                            HelpCommand::toString($sample->getConfiguration())
                        );
                    }
                }

                $doc .= "\n".$this->generateSampleDiff($fixer, $sample, $index + 1, $name);
            }
        }

        $ruleSetConfigs = [];

        foreach (RuleSets::getSetDefinitionNames() as $set) {
            $ruleSet = new RuleSet([$set => true]);

            if ($ruleSet->hasRule($name)) {
                $ruleSetConfigs[$set] = $ruleSet->getRuleConfiguration($name);
            }
        }

        if ([] !== $ruleSetConfigs) {
            $plural = 1 !== \count($ruleSetConfigs) ? 's' : '';
            $doc .= <<<RST


Rule sets
---------

The rule is part of the following rule set{$plural}:
RST;

            foreach ($ruleSetConfigs as $set => $config) {
                $ruleSetPath = $this->locator->getRuleSetsDocumentationFilePath($set);
                $ruleSetPath = substr($ruleSetPath, strrpos($ruleSetPath, '/'));

                $doc .= <<<RST


{$set}
  Using the `{$set} <./../../ruleSets{$ruleSetPath}>`_ rule set will enable the ``{$name}`` rule
RST;

                if (null !== $config) {
                    $doc .= " with the config below:\n\n  ``".HelpCommand::toString($config).'``';
                } elseif ($fixer instanceof ConfigurableFixerInterface) {
                    $doc .= ' with the default config.';
                } else {
                    $doc .= '.';
                }
            }
        }

        return "{$doc}\n";
    }

    /**
     * @param FixerInterface[] $fixers
     */
    public function generateFixersDocumentationIndex(array $fixers): string
    {
        $overrideGroups = [
            'PhpUnit' => 'PHPUnit',
            'PhpTag' => 'PHP Tag',
            'Phpdoc' => 'PHPDoc',
        ];

        usort($fixers, static function (FixerInterface $a, FixerInterface $b): int {
            return strcmp(\get_class($a), \get_class($b));
        });

        $documentation = <<<'RST'
=======================
List of Available Rules
=======================
RST;

        $currentGroup = null;

        foreach ($fixers as $fixer) {
            $namespace = Preg::replace('/^.*\\\\(.+)\\\\.+Fixer$/', '$1', \get_class($fixer));
            $group = $overrideGroups[$namespace] ?? Preg::replace('/(?<=[[:lower:]])(?=[[:upper:]])/', ' ', $namespace);

            if ($group !== $currentGroup) {
                $underline = str_repeat('-', \strlen($group));
                $documentation .= "\n\n{$group}\n{$underline}\n";

                $currentGroup = $group;
            }

            $path = './'.$this->locator->getFixerDocumentationFileRelativePath($fixer);

            $attributes = [];

            if ($fixer instanceof DeprecatedFixerInterface) {
                $attributes[] = 'deprecated';
            }

            if ($fixer->isRisky()) {
                $attributes[] = 'risky';
            }

            $attributes = 0 === \count($attributes)
                ? ''
                : ' *('.implode(', ', $attributes).')*'
            ;

            $summary = str_replace('`', '``', $fixer->getDefinition()->getSummary());

            $documentation .= <<<RST

- `{$fixer->getName()} <{$path}>`_{$attributes}

  {$summary}
RST;
        }

        return "{$documentation}\n";
    }

    private function generateSampleDiff(FixerInterface $fixer, CodeSampleInterface $sample, int $sampleNumber, string $ruleName): string
    {
        if ($sample instanceof VersionSpecificCodeSampleInterface && !$sample->isSuitableFor(\PHP_VERSION_ID)) {
            $existingFile = @file_get_contents($this->locator->getFixerDocumentationFilePath($fixer));

            if (false !== $existingFile) {
                Preg::match("/\\RExample #{$sampleNumber}\\R.+?(?<diff>\\R\\.\\. code-block:: diff\\R\\R.*?)\\R(?:\\R\\S|$)/s", $existingFile, $matches);

                if (isset($matches['diff'])) {
                    return $matches['diff'];
                }
            }

            $error = <<<RST

.. error::
   Cannot generate diff for code sample #{$sampleNumber} of rule {$ruleName}:
   the sample is not suitable for current version of PHP (%s).
RST;

            return sprintf($error, PHP_VERSION);
        }

        $old = $sample->getCode();

        $tokens = Tokens::fromCode($old);
        $file = $sample instanceof FileSpecificCodeSampleInterface
            ? $sample->getSplFileInfo()
            : new StdinFileInfo()
        ;

        if ($fixer instanceof ConfigurableFixerInterface) {
            $fixer->configure($sample->getConfiguration() ?? []);
        }

        $fixer->fix($file, $tokens);

        $diff = $this->differ->diff($old, $tokens->generateCode());
        $diff = Preg::replace('/@@[ \+\-\d,]+@@\n/', '', $diff);
        $diff = Preg::replace('/\r/', '^M', $diff);
        $diff = Preg::replace('/^ $/m', '', $diff);
        $diff = Preg::replace('/\n$/', '', $diff);
        $diff = RstUtils::indent($diff, 3);

        return <<<RST

.. code-block:: diff

   {$diff}
RST;
    }
}

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