<?php
/**
 * Generates getter and setter methods for a PHP class
 * @author Michael Angstadt
 */
class GetterSetterGen{
	/**
	 * The source code of the PHP class.
	 * @var string
	 */
	private $class;
	
	/**
	 * The newline string to use.
	 * @var string
	 */
	private $newline;
	
	/**
	 * The indent character to use.
	 * @var string
	 */
	private $indentChar;
	
	/**
	 * The number of indent characters to use for a single indentation.
	 * @var integer
	 */
	private $indentCount;
	
	/**
	 * @param string $class the source code of the PHP class
	 * @param string $newline (optional) the newline string to use
	 * @param string $indentChar (optional) the indent character to use
	 * @param integer $indentCount (optional) the number of indent characters to use for a single indentation
	 */
	public function __construct($class, $newline = "\n", $indentChar = "\t", $indentCount = 1){
		$this->class = $class;
		$this->newline = $newline;
		$this->indentChar = $indentChar;
		$this->indentCount = $indentCount;
	}
	
	/**
	 * Generates the source code for the getter/setter methods.
	 * @return string the getter/setter source code
	 */
	public function generate(){
		$code = "";
		
		$count = preg_match_all("/(private|protected)\\s+\\$(.*?)(=.*?)?;/", $this->class, $matches);
		for ($i = 0; $i < $count; $i++){
			$name = trim($matches[2][$i]);
			$ucName = ucfirst($name);
			$getter = "{$this->indent(1)}public function get$ucName(){" . "$this->newline{$this->indent(2)}return \$this->$name;$this->newline{$this->indent(1)}}";
			$setter = "{$this->indent(1)}public function set$ucName(\$$name){" . "$this->newline{$this->indent(2)}\$this->$name = \$$name;$this->newline{$this->indent(1)}}";
			$code .= "$getter{$this->newline}{$this->newline}$setter";
			
			if ($i < $count-1){
				$code .= "{$this->newline}{$this->newline}";
			}
		}
		
		return $code;
	}
	
	/**
	 * Indents a line of code.
	 * @param integer $level the indentation level
	 */
	private function indent($level){
		return str_repeat(str_repeat($this->indentChar, $this->indentCount), $level);
	}
}