<?php
/*
Author: 		Riccardo Di Dato
Creation Date:	08/gen/2016
*/

class ConstrainedArrayObject extends Constrained implements ArrayAccess {
	private $base = array();
	
	public function __construct(array $base){
		parent::__construct();
		$this->setBase($base);
	}
	
	protected function setBase($base){
		foreach ($base as $key=>$value){
			$this->base[$key] = ConstrainedFactory::build($value);
		}
	}
	
	public function getBase(){
		return $this->base;
	}
	
	protected function addPathToChildException($myKey, ConstraintException $ex){
		$newKey = $myKey."[".$ex->getRelatedKey()."]";
		return new ConstraintException($ex->getRelatedOperation(), $newKey, $ex->getRelatedValue());
	}
	
	protected function setInternal($key,$value){
		if (is_null($key)) {
			$this->base[] = $value;
		}
		else {
			$this->base[$key] = $value;
		}
	}
	
	protected function getInternal($key){
		return $this->offsetExists($key) ? $this->base[$key] : null;
	}
	
	protected function unsetInternal($key){
		unset($this->base[$key]);
	}
	
	
	// ArrayAccess methods
	public function offsetExists($key) {
		return array_key_exists($key, $this->base);
	}
	
	public function offsetSet($key, $value) {
		$this->setConstrained($key, $value);
	}
	
	public function offsetUnset($key) {
		$this->unsetConstrained($key);
	}
	
	public function offsetGet($key) {
		$this->getConstrained($key);
	}
	
}

?>