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<?php |
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declare(strict_types=1); |
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namespace Werkspot\Enum; |
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use BadMethodCallException; |
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use Doctrine\Common\Inflector\Inflector; |
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use InvalidArgumentException; |
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use ReflectionClass; |
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use Werkspot\Enum\Util\ClassNameConverter; |
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abstract class AbstractEnum |
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{ |
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protected $value; |
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protected function __construct($value) |
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{ |
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if (!$this->isValid($value)) { |
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$message = 'Value [%s] is not matching any valid value of class "%s". Valid values are [%s].'; |
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throw new InvalidArgumentException(sprintf( |
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$message, |
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$value, |
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$this->getClassName(), |
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self::getValidOptionsAsString() |
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)); |
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} |
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$this->value = $value; |
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} |
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/** |
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* @return static |
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*/ |
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public static function get($value): self |
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{ |
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return new static($value); |
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} |
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public static function __callStatic(string $methodName, array $arguments): self |
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{ |
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foreach (self::getConstants() as $option => $value) { |
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$expectedMethodName = lcfirst(Inflector::classify(strtolower($option))); |
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if ($expectedMethodName === $methodName) { |
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return new static($value); |
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} |
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} |
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throw new BadMethodCallException(sprintf('%s::%s() does not exist', static::class, $methodName)); |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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public function equals(self $other): bool |
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{ |
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return get_class($other) === get_class($this) && $other->getValue() === $this->value; |
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} |
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public function __toString(): string |
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{ |
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return (string) $this->value; |
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} |
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protected function isValid($value): bool |
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{ |
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return in_array($value, self::getValidOptions(), true); |
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} |
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public static function getValidOptions(): array |
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{ |
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return array_values(self::getConstants()); |
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} |
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protected function getClassName(): string |
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{ |
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return ClassNameConverter::stripNameSpace(static::class); |
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} |
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private static function getConstants(): array |
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{ |
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return (new ReflectionClass(static::class))->getConstants(); |
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} |
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private static function getValidOptionsAsString(): string |
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{ |
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return implode( |
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', ', |
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array_map(function ($option) { |
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return var_export($option, true); |
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}, self::getValidOptions()) |
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); |
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} |
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} |
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Werkspot /
Enum
