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<?php |
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namespace Conlect\ImageIIIF\Validators; |
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use function array_filter; |
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use Conlect\ImageIIIF\Exceptions\BadRequestException; |
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use Conlect\ImageIIIF\Validators\Contracts\ValidatorInterface; |
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use function count; |
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use function explode; |
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use function in_array; |
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use function str_starts_with; |
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class RegionValidator extends ValidatorAbstract implements ValidatorInterface |
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{ |
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public function valid($value) |
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{ |
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$options = explode(',', $value); |
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if (count($options) == 1) { |
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return $this->validateFullOrSquare($options[0]); |
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} |
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if (count($options) !== 4) { |
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return $this->valueException($value); |
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} |
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if ($options[2] == 0 || $options[3] == 0) { |
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return $this->zeroException(); |
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} |
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if (str_starts_with($options[0], 'pct:')) { |
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$options[0] = \substr($options[0], 4); |
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} |
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if (4 === count(array_filter($options, 'is_numeric'))) { |
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$validator = new ValidatorShared(); |
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foreach ($options as $option) { |
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$validator->floatingPointValidator($option); |
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} |
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return true; |
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} |
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return $this->valueException($value); |
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} |
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protected function validateFullOrSquare($value) |
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{ |
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if (in_array($value, ['full', 'square'])) { |
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return true; |
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} |
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return $this->valueException($value); |
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} |
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protected function valueException($value) |
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{ |
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throw new BadRequestException("Region $value is invalid."); |
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} |
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protected function zeroException() |
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{ |
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throw new BadRequestException('Region width and height should be greater than zero.'); |
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} |
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} |
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conlect /
image-iiif
