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<?php |
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declare(strict_types=1); |
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namespace Cerbero\Enum\Services; |
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use Cerbero\Enum\Data\MethodAnnotation; |
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use InvalidArgumentException; |
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use function Cerbero\Enum\className; |
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/** |
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* The enums annotator. |
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* |
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* @template TEnum of \UnitEnum |
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*/ |
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class Annotator |
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{ |
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/** |
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* The regular expression to extract the use statements. |
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* |
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* @var string |
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*/ |
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public const RE_USE_STATEMENTS = '~^use(?:[\s\S]+(?=^use))?.+~im'; |
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/** |
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* The regular expression to extract the enum declaring line with potential attributes. |
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* |
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* @var string |
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*/ |
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public const RE_ENUM = '~(^(?:#\[[\s\S]+)?^enum.+)~im'; |
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/** |
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* The regular expression to extract the method annotations. |
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* |
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* @var string |
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*/ |
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public const RE_METHOD_ANNOTATIONS = '~^ \* @method(?:[\s\S]+(?=@method))?.+~im'; |
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/** |
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* The enum inspector. |
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* |
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* @var Inspector<TEnum> |
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*/ |
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protected readonly Inspector $inspector; |
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/** |
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* Instantiate the class. |
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* |
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* @param class-string<TEnum> $enum |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct(protected readonly string $enum) |
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{ |
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$this->inspector = new Inspector($enum); |
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} |
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/** |
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* Annotate the given enum. |
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*/ |
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public function annotate(bool $overwrite = false): bool |
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{ |
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if (empty($annotations = $this->inspector->methodAnnotations(! $overwrite))) { |
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1 |
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return true; |
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} |
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$docBlock = $this->inspector->docBlock(); |
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$filename = $this->inspector->filename(); |
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$oldContent = (string) file_get_contents($filename); |
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$methodAnnotations = $this->formatMethodAnnotations($annotations); |
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$useStatements = $this->formatUseStatements($this->inspector->useStatements(! $overwrite)); |
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$newContent = (string) preg_replace(static::RE_USE_STATEMENTS, $useStatements, $oldContent, 1); |
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$newContent = match (true) { |
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empty($docBlock) => $this->addDocBlock($methodAnnotations, $newContent), |
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str_contains($docBlock, '@method') => $this->replaceAnnotations($methodAnnotations, $newContent), |
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default => $this->addAnnotations($methodAnnotations, $newContent, $docBlock), |
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}; |
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return file_put_contents($filename, $newContent) !== false; |
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} |
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/** |
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* Retrieve the formatted method annotations. |
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* |
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* @param array<string, MethodAnnotation> $annotations |
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*/ |
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protected function formatMethodAnnotations(array $annotations): string |
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{ |
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$mapped = array_map(fn(MethodAnnotation $annotation) => " * {$annotation}", $annotations); |
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return implode(PHP_EOL, $mapped); |
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} |
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/** |
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* Retrieve the formatted use statements. |
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* |
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* @param array<string, class-string> $statements |
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*/ |
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protected function formatUseStatements(array $statements): string |
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{ |
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array_walk($statements, function (string &$namespace, string $alias) { |
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$namespace = "use {$namespace}" . (className($namespace) == $alias ? ';' : " as {$alias};"); |
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}); |
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return implode(PHP_EOL, $statements); |
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} |
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/** |
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* Add a docBlock with the given method annotations. |
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*/ |
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protected function addDocBlock(string $methodAnnotations, string $content): string |
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{ |
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$replacement = implode(PHP_EOL, ['/**', $methodAnnotations, ' */', '$1']); |
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return (string) preg_replace(static::RE_ENUM, $replacement, $content, 1); |
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} |
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/** |
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* Replace existing method annotations with the given method annotations. |
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*/ |
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protected function replaceAnnotations(string $methodAnnotations, string $content): string |
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{ |
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return (string) preg_replace(static::RE_METHOD_ANNOTATIONS, $methodAnnotations, $content, 1); |
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} |
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/** |
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* Add the given method annotations to the provided docBlock. |
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*/ |
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protected function addAnnotations(string $methodAnnotations, string $content, string $docBlock): string |
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{ |
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$newDocBlock = str_replace(' */', implode(PHP_EOL, [' *', $methodAnnotations, ' */']), $docBlock); |
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return str_replace($docBlock, $newDocBlock, $content); |
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} |
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} |
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cerbero90 /
enum
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