/**
* This function returns the products by using the product filter.
*
* @author David Pauli <*****@*****.**>
* @return Product[] Returns an array of products.
* @since 0.0.0
* @since 0.1.0 Use a default Locale.
* @since 0.1.1 Unstatic every attributes.
* @since 0.1.2 Add error reporting.
* @since 0.1.3 Get all results.
* @since 0.2.0 Set error message for empty responses to notify.
* @since 0.2.1 Implement REST client fixes.
*/
public function getProducts()
{
$this->errorReset();
$parameter = $this->getParameter();
// if request method is blocked
if (!RESTClient::setRequestMethod(HTTPRequestMethod::GET)) {
$this->errorSet("RESTC-9");
return;
}
RESTClient::send(self::RESTPATH . "?" . $parameter);
$content = RESTClient::getJSONContent();
// if respond is empty
if (InputValidator::isEmpty($content)) {
$this->errorSet("PF-8");
Logger::notify("ep6\\ProductFilter\nREST respomd for getting products is empty.");
return;
}
// if there is no results, page AND resultsPerPage element
if (InputValidator::isEmptyArrayKey($content, "results") || InputValidator::isEmptyArrayKey($content, "page") || InputValidator::isEmptyArrayKey($content, "resultsPerPage")) {
$this->errorSet("PF-9");
Logger::error("ep6\\ProductFilter\nRespond for " . self::RESTPATH . " can not be interpreted.");
return;
}
$this->results = $content['results'];
$products = array();
// is there any product found: load the products.
if (!InputValidator::isEmptyArrayKey($content, "items") && sizeof($content['items']) != 0) {
foreach ($content['items'] as $item) {
$product = new Product($item);
// go to every filter
foreach ($this->filters as $filter) {
switch ($filter->getAttribute()) {
case 'stocklevel':
$value = array();
$value["stocklevel"] = $product->getStocklevel();
break;
case 'price':
$value = array();
$value["price"] = $product->getPrice()->getAmount();
break;
case 'category':
$value = array();
$value["category"] = $product->getCategories();
break;
default:
$value = $item;
break;
}
if (!InputValidator::isEmptyArrayKey($value, $filter->getAttribute()) || $filter->getOperator() == FilterOperation::UNDEF) {
if (!InputValidator::isArray($value[$filter->getAttribute()])) {
if (!$filter->isElementInFilter($value)) {
continue 2;
}
}
} else {
continue 2;
}
}
array_push($products, $product);
}
}
return $products;
}
