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<?php

defined('UNLIMITED_ELEMENTS_INC') or die('Restricted access');
class UniteCreatorLibraryWork
{
    private static $arrLibrary;
    public function __construct()
    {
        if (empty(self::$arrLibrary)) {
            $this->loadLibrary();
        }
    }
    private function isConditionOK($condition, $handle = null)
    {
        switch ($condition) {
            case "fa5":
            case "fa4":
                $faVersion = "fa5";
                if ($faVersion == $condition) {
                    return true;
                } else {
                    return false;
                }
                break;
        }
        return false;
    }
    protected function getUrlPlatformInclude($handle)
    {
        return null;
    }
    private function loadLibrary_getIncludes($xmlIncludes)
    {
        $objIncludes = $xmlIncludes->include;
        if (!@count($objIncludes)) {
            $objIncludes = array($objIncludes);
        }
        $arrIncludes = array();
        foreach ($objIncludes as $objInclude) {
            $attribs = $objInclude->attributes();
            $handle = (string) UniteFunctionsUC::getVal($attribs, "handle");
            $local = (string) UniteFunctionsUC::getVal($attribs, "local");
            $remote = (string) UniteFunctionsUC::getVal($attribs, "remote");
            $condition = (string) UniteFunctionsUC::getVal($attribs, "condition");
            if (empty($local) && empty($remote)) {
                UniteFunctionsUC::throwError("Include: {$handle} must have some url");
            }
            if (!empty($local)) {
                $local = trim($local);
                $urlInclude = GlobalsUC::$url_assets_libraries . $local;
            } else {
                if (!empty($remote)) {
                    $urlInclude = $remote;
                }
            }
            $urlPlatformInclude = $this->getUrlPlatformInclude($handle);
            if (!empty($urlPlatformInclude)) {
                $urlInclude = $urlPlatformInclude;
            }
            if (!empty($condition)) {
                $isCondition = $this->isConditionOK($condition, $handle);
                if ($isCondition == true) {
                    $arrIncludes[$handle] = $urlInclude;
                }
                continue;
            }
            $arrIncludes[$handle] = $urlInclude;
        }
        return $arrIncludes;
    }
    private function loadLibrary()
    {
        $filepathLibrary = GlobalsUC::$pathSettings . "library.xml";
        UniteFunctionsUC::validateFilepath($filepathLibrary);
        $arrLibrary = array();
        $obj = simplexml_load_file($filepathLibrary);
        if (empty($obj)) {
            UniteFunctionsUC::throwError("Wrong xml file format: {$filepathLibrary}");
        }
        $items = $obj->item;
        if (!@count($obj->item)) {
            $items = array($items);
        }
        foreach ($items as $objItem) {
            $attribs = $objItem->attributes();
            $name = (string) UniteFunctionsUC::getVal($attribs, "name");
            $arrItem = array();
            $arrItem["name"] = $name;
            $arrItem["title"] = (string) UniteFunctionsUC::getVal($attribs, "title");
            UniteFunctionsUC::validateNotEmpty($name, "item name");
            UniteFunctionsUC::validateNotEmpty($arrItem["title"], "item title");
            $arrJsIncludes = array();
            if (isset($objItem->js)) {
                $arrJsIncludes = $this->loadLibrary_getIncludes($objItem->js);
            }
            $arrCssIncludes = array();
            if (isset($objItem->css)) {
                $arrCssIncludes = $this->loadLibrary_getIncludes($objItem->css);
            }
            $arrItem["includes_js"] = $arrJsIncludes;
            $arrItem["includes_css"] = $arrCssIncludes;
            $arrLibrary[$name] = $arrItem;
        }
        self::$arrLibrary = $arrLibrary;
    }
    public function processProviderLibrary($name)
    {
        return false;
    }
    public function getLibraryIncludes($name)
    {
        $urlBase = GlobalsUC::$url_assets_libraries;
        $arrJs = array();
        $arrCss = array();
        $output = array("js" => array(), "css" => array());
        if (!isset(self::$arrLibrary[$name])) {
            return $output;
        }
        $arrItem = self::$arrLibrary[$name];
        $output["js"] = $arrItem["includes_js"];
        $output["css"] = $arrItem["includes_css"];
        return $output;
    }
    public function getArrLibrary()
    {
        return self::$arrLibrary;
    }
}