<?php
/**
 * Theme arguments. Allows to pass variables to template when get_template_part is used
 * Usage:
 * $oArgs = ThemeArguments::getInstance('inc/post-info');
 * $oArgs -> set('title','Your title');
 * get_template_part('content');
 * 
 * When in template:
 * $oArgs = ThemeArguments::getInstance('inc/post-info');
 * $title = $oArgs -> get('title');
 * $oArgs -> reset(); //it's a good practice to reset values after they are used
 */

final class ThemeArguments
{
    /**
     * Instance of the class TsArguments
     *
     * @var object
     * @access private
     */
    private static $oInstance = false;
	
	/**
     * Current context
     *
     * @var string
     * @access private
     */
    private $context = null;
	
	/**
     * Arguments array
     *
     * @var string
     * @access private
     */
    private $args = array();
 
    /**
     * Returns instance of the object TsArguments
     *
     * @return TsArguments
     * @access public
     * @static
     */
    public static function getInstance($context)
    {
        if( self::$oInstance == false )
        {
            self::$oInstance = new ThemeArguments();
        }
		self::$oInstance -> setContext($context);
        return self::$oInstance;
    }
	
	public function setContext($context) {
		$this -> context = $context;
	}
	
	/**
	 * Set many arguments, accept an array array(argument_name => argument_value)
	 * @param array $args
	 * @return boolean
	 */
	public function setMany($args) {
		if (is_array($args)) {
			$this -> args[$this -> context] = $args;
			return true;
		}
		return false;
	}
	
	/**
	 * Set an argument
	 * @param string $name
	 * @param mix $value
	 * @return boolean
	 */
	public function set($name, $value) {
		if (!empty($name)) {
			$this -> args[$this -> context][$name] = $value;
			return true;
		}
		return false;
	}
	
	/**
	 * Get an argument
	 * @param string $name
	 * @return mix
	 */
	public function get($name) {
		if (isset($this -> args[$this -> context][$name])) {
			return $this -> args[$this -> context][$name];
		}
		return false;
	}
	
	/**
	 * Reset current context arguments
	 * @return boolean
	 */
	public function reset() {
		$this -> args[$this -> context] = array();
		return true;
	}
	
    private function __construct() {}
}

