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<?php
/**
* @author sleibelt
* @since 2014-04-25
*/
namespace Net\Bazzline\Component\CodeGenerator;
/**
* Class BlockGenerator
*
* @package Net\Bazzline\Component\Locator\LocatorGenerator
* @todo add helpers like "startWhile", "startIf" and so one
*/
class BlockGenerator extends AbstractContentGenerator implements LineGeneratorDependentInterface
{
/**
* @var boolean
*/
private $addIndented;
/**
* @var array|BlockGenerator[]|LineGenerator[]
*/
private $content = [];
/**
* @var LineGenerator
*/
private $lineGenerator;
/**
* @param LineGenerator $lineGenerator
* @param Indention $indention
* @param null|string|array|GeneratorInterface $content
*/
public function __construct(LineGenerator $lineGenerator, Indention $indention, $content = null)
{
$this->addIndented = false;
$this->lineGenerator = $lineGenerator;
parent::__construct($indention, $content);
}
/**
* @param LineGenerator $generator
* @return $this
*/
public function setLineGenerator(LineGenerator $generator)
{
$this->lineGenerator = $generator;
return $this;
}
/**
* @param Indention $indention
* @return $this
*/
public function setIndention(Indention $indention)
{
parent::setIndention($indention);
$this->lineGenerator->setIndention($indention);
return $this;
}
/**
* @param array|GeneratorInterface|string $content
* @return $this
* @throws InvalidArgumentException
* @todo rename to addContent, easy up this method by working on todo in generate method
*/
public function add($content)
{
$indention = ($this->addIndented) ? $this->getIndention()->toString() : '';
if (is_string($content)) {
$lineOfContent = $this->getLineGenerator($indention . $content);
$this->content[] = $lineOfContent;
} else if (is_array($content)) {
foreach ($content as $part) {
$this->add($part);
}
} else if ($content instanceof AbstractContentGenerator) {
$content->setIndention($this->getIndention());
$this->content[] = $content;
} else {
throw new InvalidArgumentException('content has to be string, an array or instance of AbstractContentGenerator');
}
return $this;
}
/**
* @return $this
*/
public function clear()
{
$this->content = [];
return $this;
}
/**
* @return bool
*/
public function hasContent()
{
return (!empty($this->content));
}
/**
* @throws InvalidArgumentException|RuntimeException
* @return string
* @todo implement support for string|array beside AbstractContentGenerator in $this->content
*/
public function generate()
{
$string = '';
$arrayKeys = array_keys($this->content);
$lastKey = array_pop($arrayKeys);
foreach ($this->content as $key => $content) {
if ($content->hasContent()) {
if ($content instanceof BlockGenerator) {
$this->getIndention()->increaseLevel();
$string .= $content->generate();
$this->getIndention()->decreaseLevel();
} else {
$string .= $content->generate();
}
if ($key !== $lastKey) {
$string .= PHP_EOL;
}
}
}
return $string;
}
/**
* @return int
*/
public function count()
{
return (count($this->content));
}
/**
* @todo find better name
* @return $this
*/
public function startIndention()
{
$this->getIndention()->increaseLevel();
$this->addIndented = true;
return $this;
}
/**
* @todo find better name
* @return $this
*/
public function stopIndention()
{
$this->getIndention()->decreaseLevel();
if ($this->getIndention()->isSetToInitialLevel()) {
$this->addIndented = false;
}
return $this;
}
/**
* @param null|string $content
* @return LineGenerator
*/
final protected function getLineGenerator($content = null)
{
$line = clone $this->lineGenerator;
if (!is_null($content)) {
$line->add($content);
}
return $line;
}
}