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<?php |
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namespace ntentan\utils\filesystem; |
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use ntentan\utils\Filesystem; |
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/** |
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* Holds a collection of files. |
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* This may be returned from directory contents or glob operations. A collection can contain regular files and |
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* directories and, its contents do not need to be from the same root directory. |
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* |
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* @package ntentan\utils\filesystem |
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*/ |
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class FileCollection implements \Iterator, \ArrayAccess, FileInterface, \Countable |
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{ |
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/** |
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* An array holding all paths in this collection |
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* @var array |
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*/ |
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private $paths; |
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/** |
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* Current index of the iterator in the list of paths. |
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* @var int |
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*/ |
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private $iteratorIndex; |
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/** |
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* A lightweight cache that holds instances of file objects created. |
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* @var array<FileInterface> |
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*/ |
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private $instances; |
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/** |
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* FileCollection constructor. |
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* @param $paths |
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*/ |
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public function __construct($paths) |
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{ |
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$this->paths = $paths; |
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$this->iteratorIndex = 0; |
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} |
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/** |
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* Get an instance of a file object for a path in the collection. |
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* This is used whenever an item must be returned from the collection. |
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* |
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* @param $index |
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* @return mixed |
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*/ |
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private function getInstance($index) |
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{ |
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if(!isset($this->instances[$index])) { |
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if(is_dir($this->paths[$index])) { |
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$this->instances[$index] = Filesystem::directory($this->paths[$index]); |
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} else { |
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$this->instances[$index] = Filesystem::file($this->paths[$index]); |
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} |
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} |
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return $this->instances[$index]; |
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} |
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public function rewind() |
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{ |
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$this->iteratorIndex = 0; |
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} |
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public function current() |
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{ |
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return $this->getInstance($this->iteratorIndex); |
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} |
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public function key() |
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{ |
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return $this->iteratorIndex; |
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} |
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public function next() |
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{ |
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$this->iteratorIndex++; |
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} |
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public function valid() |
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{ |
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return isset($this->paths[$this->iteratorIndex]); |
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} |
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public function offsetSet($index, $path) |
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{ |
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if(is_null($index)) { |
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$this->paths[] = $path; |
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} else { |
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$this->paths[$index] = $path; |
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unset($this->instances[$index]); |
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} |
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} |
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public function offsetExists($index) |
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{ |
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return isset($this->paths[$index]); |
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} |
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public function offsetGet($index) |
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{ |
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return isset($this->paths[$index]) ? $this->paths[$index] : null; |
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} |
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public function offsetUnset($index) |
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{ |
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unset($this->paths[$index]); |
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} |
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public function moveTo(string $destination): void |
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{ |
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foreach($this as $file) { |
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$file->moveTo($destination . DIRECTORY_SEPARATOR . basename($file)); |
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} |
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} |
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public function copyTo(string $destination): void |
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{ |
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foreach($this as $file) { |
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$file->copyTo($destination . DIRECTORY_SEPARATOR . basename($file)); |
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} |
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} |
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public function getSize(): int |
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{ |
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return array_reduce(iterator_to_array($this), |
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function($carry, $item){ |
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return $carry + $item->getSize(); |
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}, 0); |
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} |
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public function delete(): void |
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{ |
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foreach($this as $file) { |
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$file->delete(); |
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} |
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} |
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public function getPath(): string |
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{ |
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return array_reduce($this->paths, |
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function($carry, $path) { |
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$carry .= escapeshellarg($path) . " "; |
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}, ""); |
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} |
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public function count() |
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{ |
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return count($this->paths); |
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} |
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} |
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ntentan /
utils
