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<?php |
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namespace Recurrence\Rrule; |
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use Recurrence\Model\Exception\InvalidRruleException; |
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use Recurrence\Model\Exception\InvalidRruleExpressionException; |
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use Recurrence\Model\Recurrence; |
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class RecurrenceProvider |
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{ |
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/** |
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* Map extractor/transformer names with Recurrence parameters. |
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*/ |
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private array $options = [ |
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'Count', |
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'Interval', |
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'Freq', |
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'DtStartTimezoned', |
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'DtStart', |
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'UntilTimezoned', |
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'Until', |
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]; |
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/** |
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* @throws InvalidRruleException |
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*/ |
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public function create(string $rRule): Recurrence |
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{ |
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$parameters = []; |
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// Process all options supported |
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foreach ($this->options as $option) { |
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$parameters[$option] = null; |
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// Create extractor |
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$className = 'Recurrence\Rrule\Extractor\\'.$option.'Extractor'; |
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$extractor = new $className(); |
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if ($values = $extractor->extract($rRule)) { |
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// Create corresponding transformer |
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$className = 'Recurrence\Rrule\Transformer\\'.$option.'Transformer'; |
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$transformer = new $className(); |
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$parameters[$option] = $transformer->transform($values); |
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} |
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} |
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$this->validate($parameters); |
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return new Recurrence( |
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$parameters['Freq'], |
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$parameters['Interval'], |
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$parameters['DtStartTimezoned'] ?? $parameters['DtStart'], |
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$parameters['UntilTimezoned'] ?? $parameters['Until'], |
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$parameters['Count'], |
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); |
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} |
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private function validate(array $parameters): void |
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{ |
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if (empty($parameters['Freq'])) { |
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throw new InvalidRruleExpressionException(sprintf('Missing [Freq] option.')); |
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} |
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if (empty($parameters['Interval'])) { |
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throw new InvalidRruleExpressionException(sprintf('Missing [Interval] option.')); |
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} |
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if (empty($parameters['DtStart']) && empty($parameters['DtStartTimezoned'])) { |
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throw new InvalidRruleExpressionException(sprintf('Missing [DtStart] or [DtStartTimezoned] option.')); |
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} |
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if (empty($parameters['UntilTimezoned']) && empty($parameters['Until']) && empty($parameters['Count'])) { |
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throw new InvalidRruleExpressionException(sprintf('Recurrence required [COUNT] or [UNTIL] option.')); |
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} |
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if ((!empty($parameters['UntilTimezoned']) || !empty($parameters['Until'])) && !empty($parameters['Count'])) { |
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throw new InvalidRruleExpressionException(sprintf('Recurrence cannot have [COUNT] and [UNTIL] option at the same time.')); |
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} |
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} |
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} |
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Samffy /
recurrence
