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<?php |
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namespace Kata\Algorithm\Model; |
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final class CoupleCollection implements \Iterator, \Countable, \ArrayAccess |
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{ |
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/** @var Couple[] */ |
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private $all_items; |
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/** |
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* @param Couple[] $couples_array |
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*/ |
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private function __construct(array $couples_array) |
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{ |
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$this->all_items = $couples_array; |
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} |
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/** |
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* @param Person[] $people_array |
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* |
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* @return CoupleCollection |
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*/ |
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public static function buildAllPossibleCouplesFromPeopleArray(array $people_array): CoupleCollection |
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{ |
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$couples = []; |
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foreach ($people_array as $first_person) { |
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foreach ($people_array as $second_person) { |
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if (!$first_person->equals($second_person)) { |
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$couples[] = new Couple($first_person, $second_person); |
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} |
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} |
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} |
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return new self($couples); |
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} |
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public function allItems() |
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{ |
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return $this->all_items; |
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} |
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public function offsetExists($offset) |
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{ |
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return isset($this->all_items[$offset]); |
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} |
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public function offsetGet($offset) |
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{ |
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return $this->all_items[$offset]; |
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} |
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public function offsetSet($offset, $value) |
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{ |
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return $this->all_items[$offset] = $value; |
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} |
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public function offsetUnset($offset) |
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{ |
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unset($this->all_items[$offset]); |
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} |
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public function count() |
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{ |
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return count($this->all_items); |
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} |
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public function current() |
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{ |
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return current($this->all_items); |
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} |
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public function next() |
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{ |
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next($this->all_items); |
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} |
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public function key() |
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{ |
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return key($this->all_items); |
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} |
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public function valid() |
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{ |
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return current($this->all_items); |
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} |
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public function rewind() |
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{ |
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reset($this->all_items); |
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} |
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} |
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uvinum /
php-kata-env
