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<?php |
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declare(strict_types = 1); |
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namespace drupol\phpvfs\Handler; |
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use drupol\phpvfs\Node\FileInterface; |
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/** |
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* Class File. |
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*/ |
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class File |
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{ |
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/** |
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* @var \drupol\phpvfs\Node\FileInterface |
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*/ |
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private $file; |
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/** |
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* @var string |
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*/ |
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private $mode; |
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/** |
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* @var int |
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*/ |
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private $position; |
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/** |
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* File constructor. |
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* |
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* @param \drupol\phpvfs\Node\FileInterface $file |
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* @param string $mode |
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* @param int $position |
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*/ |
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public function __construct(FileInterface $file, string $mode, int $position = 0) |
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{ |
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$this->file = $file; |
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$this->mode = $mode; |
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$this->position = $position; |
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} |
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public function getFile(): FileInterface |
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{ |
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return $this->file; |
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} |
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public function getMode(): string |
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{ |
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return $this->mode; |
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} |
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public function getPosition(): int |
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{ |
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return $this->position; |
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} |
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public function isAppendable(): bool |
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{ |
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$modeSplit = \str_split(\str_replace('b', '', $this->getMode())); |
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return \in_array('a', $modeSplit, true); |
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} |
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public function isExtended(): bool |
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{ |
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$modeSplit = \str_split(\str_replace('b', '', $this->getMode())); |
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return \in_array('+', $modeSplit, true); |
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} |
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public function isReadable(): bool |
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{ |
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$modeSplit = \str_split(\str_replace('b', '', $this->getMode())); |
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return \in_array('r', $modeSplit, true); |
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} |
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public function isWritable(): bool |
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{ |
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$modeSplit = \str_split(\str_replace('b', '', $this->getMode())); |
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return \in_array('w', $modeSplit, true); |
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} |
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/** |
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* @param int $bytes |
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* |
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* @return string |
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*/ |
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public function read(int $bytes): string |
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{ |
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$data = \substr( |
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$this->getFile()->getAttribute('content'), |
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$this->getPosition(), |
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$bytes |
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); |
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$this->offsetPosition($bytes); |
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return $data; |
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} |
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public function seekToEnd() |
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{ |
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return $this->setPosition( |
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\strlen($this->getFile()->getAttribute('content')) |
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); |
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} |
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public function setMode(string $mode): File |
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{ |
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$this->mode = $mode; |
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return $this; |
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} |
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public function setPosition(int $bytes): File |
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{ |
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$this->position = $bytes; |
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return $this; |
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} |
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/** |
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* @return int |
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*/ |
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public function size(): int |
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{ |
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return \strlen($this->getFile()->getAttribute('content')); |
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} |
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/** |
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* @param int $bytes |
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*/ |
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public function truncate(int $bytes = 0) |
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{ |
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$this->setPosition(0); |
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$newData = \substr($this->getFile()->getAttribute('content'), 0, $bytes); |
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if (\is_string($newData)) { |
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$this->getFile()->setAttribute('content', $newData); |
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} |
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} |
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/** |
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* @param string $data |
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* |
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* @return int |
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*/ |
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public function write(string $data): int |
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{ |
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$content = $this->getFile()->getAttribute('content'); |
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$content = \substr($content, 0, $this->getPosition()); |
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$content .= $data; |
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$this->getFile()->setAttribute('content', $content); |
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$written = \strlen($data); |
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$this->offsetPosition($written); |
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return $written; |
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} |
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/** |
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* @param int $offset |
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* |
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* @return int |
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*/ |
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protected function offsetPosition($offset): int |
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{ |
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$contentSize = $this->size(); |
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$newPosition = $this->getPosition() + $offset; |
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$newPosition = $contentSize < $newPosition ? |
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$contentSize : |
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$newPosition; |
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$this->setPosition($newPosition); |
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return $newPosition; |
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} |
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} |
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