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<?php |
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declare(strict_types=1); |
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namespace Meraki\Route; |
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use IteratorAggregate; |
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use Countable; |
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use Meraki\Route\Rule; |
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use LogicException; |
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use ArrayIterator; |
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/** |
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* A store for route rules. |
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* |
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* @author Nathan Bishop <[email protected]> (https://nathanbishop.name) |
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* @copyright 2019 Nathan Bishop |
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* @license The MIT license. |
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*/ |
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class Collection implements IteratorAggregate, Countable |
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{ |
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/** |
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* @var Rule[] [$rules description] |
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*/ |
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private $rules = []; |
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/** |
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* Add a route to the collection. |
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* |
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* @param Rule $rule The route object to add. |
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* @throws LogicException When trying to add a route that already exists. |
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*/ |
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public function add(Rule $rule): void |
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{ |
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if ($this->contains($rule)) { |
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throw new LogicException('Route rule already exists.'); |
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} |
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$this->rules[] = $rule; |
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} |
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/** |
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* Remove a route from the collection. |
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* |
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* @param Rule $rule The route object to remove. |
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* @throws LogicException When trying to remove a route that has not beenadded previously. |
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*/ |
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public function remove(Rule $rule): void |
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{ |
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$index = $this->indexOf($rule); |
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if ($index === -1) { |
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throw new LogicException('Cannot remove a rule that is not in the collection.'); |
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} |
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unset($this->rules[$index]); |
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} |
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/** |
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* Check if a route is in the collection. |
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* |
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* @param Rule $rule The route to check for. |
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* @return boolean `true` if the rule exists, otherwise `false`. |
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*/ |
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public function contains(Rule $rule): bool |
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{ |
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return $this->indexOf($rule) !== -1; |
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} |
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/** |
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* Get the order in which a route was added. |
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* |
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* @param Rule $rule The route object to check for. |
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* @return integer The index (0 or a positive integer if it exists, -1 if it doesn't) of the route. |
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*/ |
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public function indexOf(Rule $rule): int |
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{ |
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foreach ($this->rules as $key => $value) { |
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if ($value === $rule) { |
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return $key; |
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} |
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} |
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return -1; |
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} |
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/** |
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* Merge another route collection into this one. |
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* |
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* @param self $rules The other collection of routes to add. |
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*/ |
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public function merge(self $rules): void |
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{ |
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foreach ($rules as $rule) { |
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$this->add($rule); |
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} |
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} |
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/** |
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* Quickly determine if there are any routes contained in the collection. |
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* |
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* @return boolean `true`, if the collection has not routes, `false` otherwise. |
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*/ |
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public function isEmpty(): bool |
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{ |
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return empty($this->rules); |
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} |
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/** |
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* Count the number of routes added. |
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* |
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* @return integer The number of routes added. |
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*/ |
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public function count(): int |
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{ |
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return count($this->rules); |
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} |
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/** |
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* Get an iterator that can be used with the `foreach` and other like constructs. |
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* |
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* @return ArrayIterator An iterator for the currently contained routes. |
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*/ |
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public function getIterator(): ArrayIterator |
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{ |
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return new ArrayIterator($this->rules); |
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} |
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} |
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