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<?php |
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declare(strict_types=1); |
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namespace RemotelyLiving\PHPCollection; |
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abstract class AbstractCollection implements CollectionInterface |
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{ |
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protected array $items; |
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private \Generator $deferredValues; |
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protected function __construct(array $items) |
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{ |
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$this->items = $items; |
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} |
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final public static function collect(array $items = []): CollectionInterface |
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{ |
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return new static($items); |
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} |
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final public static function fill(int $startIndex, int $amount, $item = null): CollectionInterface |
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{ |
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$items = array_fill($startIndex, $amount, $item); |
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return new static($items); |
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} |
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final public static function fromString(string $string, string $delimiter = ','): CollectionInterface |
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{ |
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return new static(explode($delimiter, trim($string))); |
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} |
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final public static function later(\Generator $deferredValues): CollectionInterface |
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{ |
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$deferred = new static([]); |
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$deferred->deferredValues = $deferredValues; |
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return $deferred; |
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} |
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final public function count(): int |
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{ |
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return count($this->all()); |
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} |
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/** |
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* @return mixed|null |
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*/ |
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final public function first() |
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{ |
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if ($this->empty()) { |
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return null; |
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} |
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return $this->get(array_key_first($this->all())); |
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} |
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final public function last() |
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{ |
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if ($this->empty()) { |
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return null; |
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} |
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return $this->get(array_key_last($this->all())); |
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} |
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final public function reduce(callable $fn, $initial = null) |
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{ |
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return array_reduce($this->all(), $fn, $initial); |
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} |
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final public function union(CollectionInterface $collection): CollectionInterface |
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{ |
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return $this->merge($collection)->unique(); |
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} |
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final public function empty(): bool |
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{ |
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return $this->count() === 0; |
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} |
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final public function all(): array |
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{ |
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if (isset($this->deferredValues) && $this->deferredValues->valid()) { |
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$this->items = Helper::unwrapDeferred($this->deferredValues); |
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} |
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return $this->items; |
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} |
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final public function deferred(): \Generator |
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{ |
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foreach ($this->all() as $key => $value) { |
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yield $key => $value; |
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} |
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} |
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final public function values(): array |
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{ |
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return array_values($this->all()); |
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} |
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final public function equals(CollectionInterface $collection): bool |
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{ |
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return $this->diff($collection)->empty(); |
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} |
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/** |
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* @param string|int $offset |
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* |
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* @return bool |
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*/ |
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final public function has($offset): bool |
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{ |
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return isset($this->all()[$offset]); |
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} |
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/** |
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* @param mixed $item |
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* |
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* @return bool |
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*/ |
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final public function contains($item): bool |
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{ |
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return in_array($item, $this->all(), true); |
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} |
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final public function some(callable $evaluation): bool |
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{ |
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foreach ($this->all() as $key => $value) { |
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if ($evaluation($value, $key) === true) { |
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return true; |
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} |
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} |
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return false; |
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} |
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final public function get($offset, $default = null) |
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{ |
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return $this->all()[$offset] ?? $default; |
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} |
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final public function rand() |
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{ |
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return $this->all()[array_rand($this->all())]; |
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} |
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final public function getIterator(): \ArrayIterator |
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{ |
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return new \ArrayIterator($this->all()); |
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} |
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final public function serialize(): string |
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{ |
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return \serialize(['items' => $this->all()]); |
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} |
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final public function unserialize($serialized, array $classnames = []) |
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{ |
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if (isset($this->items)) { |
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throw new \LogicException('Cannot unserialize instance of collection'); |
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} |
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$this->items = \unserialize($serialized, $classnames)['items'] ?? []; |
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} |
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final public function jsonSerialize(): array |
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{ |
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return $this->all(); |
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} |
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} |
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remotelyliving /
php-collection
