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<?php

namespace Aliyun\Core\Regions;

class EndpointConfig {

private static $loaded = false;

public static function load() {
        if(self::$loaded) {
           return;
        }
        $endpoint_filename = dirname(__FILE__) . DIRECTORY_SEPARATOR . "endpoints.xml";
        $xml = simplexml_load_string(file_get_contents($endpoint_filename));
        $json = json_encode($xml);
        $json_array = json_decode($json, TRUE);

$endpoints = array();

foreach ($json_array["Endpoint"] as $json_endpoint) {
            # pre-process RegionId & Product
            if (!array_key_exists("RegionId", $json_endpoint["RegionIds"])) {
                $region_ids = array();
            } else {
                $json_region_ids = $json_endpoint['RegionIds']['RegionId'];
                if (!is_array($json_region_ids)) {
                    $region_ids = array($json_region_ids);
                } else {
                    $region_ids = $json_region_ids;
                }
            }

if (!array_key_exists("Product", $json_endpoint["Products"])) {
                $products = array();

} else {
                $json_products = $json_endpoint["Products"]["Product"];

if (array() === $json_products or !is_array($json_products)) {
                    $products = array();
                } else if (array_keys($json_products) !== range(0, count($json_products) - 1)) {
                    # array is not sequential
                    $products = array($json_products);
                } else {
                    $products = $json_products;
                }
            }

$product_domains = array();
            foreach ($products as $product) {
                $product_domain = new ProductDomain($product['ProductName'], $product['DomainName']);
                array_push($product_domains, $product_domain);
            }

$endpoint = new Endpoint($region_ids[0], $region_ids, $product_domains);
            array_push($endpoints, $endpoint);
        }

EndpointProvider::setEndpoints($endpoints);
        self::$loaded = true;
    }
}