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<?php |
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namespace Claudsonm\Pedi\Structure; |
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use Claudsonm\Pedi\Exceptions\PediException; |
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use SplTempFileObject; |
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class Layout |
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{ |
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/** |
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* @var array|Record[] |
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*/ |
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protected array $contents = []; |
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/** |
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* Defines the records and their occurrences within the layout. |
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*/ |
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protected array $structure = []; |
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private SplTempFileObject $file; |
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/** |
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* Adds a record definition to the end of the layout structure. |
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* |
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* @param int|string $occurrences the amount of sequential items expected for the given record |
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* |
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* @throws PediException |
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* |
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* @return $this |
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*/ |
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public function append(Record $record, $occurrences = 1): self |
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{ |
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if (! preg_match('/^([1-9][0-9]*)|(\*)$/', $occurrences)) { |
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throw PediException::invalidQuantifier(); |
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} |
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$occurrences = '*' === $occurrences ? $occurrences : (int) $occurrences; |
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$this->structure[] = [$record, $occurrences]; |
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return $this; |
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} |
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public function getStructure(): array |
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{ |
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return $this->structure; |
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} |
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/** |
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* @return array|Record[] |
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*/ |
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public function getContents(): array |
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{ |
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return $this->contents; |
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} |
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public function getTotalOfRecords(): int |
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{ |
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return count($this->contents); |
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} |
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public function parse(string $fileContent) |
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{ |
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$this->file = $this->makeFileObject($fileContent); |
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$currentSection = 0; |
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while ($this->file->valid()) { |
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/** @var Record $baseRecord */ |
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[$baseRecord, $times] = $this->structure[$currentSection]; |
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do { |
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$line = $this->file->getCurrentLine(); |
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$endOfCurrentLine = $this->file->ftell(); |
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/** @var Record $item */ |
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$item = unserialize(serialize($baseRecord)); |
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$item->setLineNumber($this->file->key() + 1); |
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$item->parse($line); |
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$this->contents[] = $item; |
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if ('*' === $times) { |
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try { |
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$nextLine = $this->file->getCurrentLine(); |
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} catch (\RuntimeException $exception) { |
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break; |
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} |
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$this->file->fseek($endOfCurrentLine); |
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$moreRecordsExists = $baseRecord->matches($nextLine); |
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} else { |
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$times--; |
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$moreRecordsExists = $times > 0; |
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} |
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} while ($moreRecordsExists); |
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$currentSection++; |
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} |
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} |
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private function makeFileObject(string $fileContent): SplTempFileObject |
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{ |
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$file = new SplTempFileObject(); |
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$file->setFlags(SplTempFileObject::DROP_NEW_LINE); |
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$file->fwrite($fileContent); |
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$file->rewind(); |
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return $file; |
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} |
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} |
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claudsonm /
pedi
