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<?php |
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|
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namespace UltimateStoreKit\Base\Support; |
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|
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use ArrayAccess; |
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use ArrayObject; |
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|
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class Optional implements ArrayAccess |
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{ |
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/** |
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* The underlying object. |
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* |
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* @var mixed |
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*/ |
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protected $value; |
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|
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/** |
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* Create a new optional instance. |
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* |
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* @param mixed $value |
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* @return void |
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*/ |
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public function __construct($value) |
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{ |
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$this->value = $value; |
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} |
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|
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/** |
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* Dynamically access a property on the underlying object. |
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* |
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* @param string $key |
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* @return mixed |
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*/ |
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public function __get($key) |
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{ |
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if (is_object($this->value)) { |
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return isset($this->value->{$key}) ? $this->value->{$key} : null; |
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} |
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} |
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|
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/** |
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* Dynamically check a property exists on the underlying object. |
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* |
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* @param mixed $name |
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* @return bool |
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*/ |
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public function __isset($name) |
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{ |
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if (is_object($this->value)) { |
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return isset($this->value->{$name}); |
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} |
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|
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if (is_array($this->value) || $this->value instanceof ArrayObject) { |
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return isset($this->value[$name]); |
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} |
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|
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return false; |
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} |
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|
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/** |
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* Determine if an item exists at an offset. |
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* |
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* @param mixed $key |
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* @return bool |
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*/ |
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public function offsetExists($key) |
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{ |
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return $this->accessible($this->value) && $this->exists($this->value, $key); |
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} |
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|
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protected function accessible($value) |
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{ |
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return is_array($value) || $value instanceof ArrayAccess; |
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} |
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|
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protected function exists($array, $key) |
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{ |
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if ($array instanceof ArrayAccess) { |
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return $array->offsetExists($key); |
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} |
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|
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return array_key_exists($key, $array); |
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} |
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|
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/** |
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* Get an item at a given offset. |
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* |
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* @param mixed $key |
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* @return mixed |
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*/ |
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public function offsetGet($key) |
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{ |
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return $this->get($this->value, $key); |
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} |
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|
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protected function get($array, $key, $default = null) |
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{ |
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if (! $this->accessible($array)) { |
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return $this->value($default); |
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} |
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|
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if (is_null($key)) { |
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return $array; |
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} |
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|
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if ($this->exists($array, $key)) { |
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return $array[$key]; |
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} |
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|
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if (strpos($key, '.') === false) { |
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return isset($array[$key]) ? $array[$key] : $this->value($default); |
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} |
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|
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foreach (explode('.', $key) as $segment) { |
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if ($this->accessible($array) && $this->exists($array, $segment)) { |
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$array = $array[$segment]; |
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} else { |
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return $this->value($default); |
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} |
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} |
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|
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return $array; |
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} |
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|
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protected function value($value) |
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{ |
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return $value instanceof Closure ? $value() : $value; |
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} |
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|
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/** |
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* Set the item at a given offset. |
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* |
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* @param mixed $key |
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* @param mixed $value |
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* @return void |
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*/ |
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public function offsetSet($key, $value): void |
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{ |
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if ($this->accessible($this->value)) { |
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$this->value[$key] = $value; |
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} |
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} |
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|
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/** |
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* Unset the item at a given offset. |
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* |
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* @param string $key |
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* @return void |
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*/ |
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public function offsetUnset($key): void |
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{ |
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if ($this->accessible($this->value)) { |
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unset($this->value[$key]); |
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} |
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} |
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} |
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|
