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<?php

/**
 * MvcCore
 *
 * This source file is subject to the BSD 3 License
 * For the full copyright and license information, please view
 * the LICENSE.md file that are distributed with this source code.
 *
 * @copyright   Copyright (c) 2016 Tom Flidr (https://github.com/mvccore)
 * @license     https://mvccore.github.io/docs/mvccore/5.0.0/LICENCE.md
 */

namespace MvcCore\Ext\Routers\Module;

trait PreAndPostRouting {

    /**
     * Process normal route strategy detection from core router and than process
     * domain routing, if request is not internal.
     * Return array with possible query string controller name and action.
     * @throws \LogicException Route configuration property is missing.
     * @throws \InvalidArgumentException Wrong route pattern format.
     * @return array
     */
    protected function routeDetectStrategy () {
        /** @var $this \MvcCore\Ext\Routers\Module */
        list($requestCtrlName, $requestActionName) = parent::routeDetectStrategy();
        if (!$this->internalRequest) $this->domainRouting();
        return [$requestCtrlName, $requestActionName];
    }

    /**
     * After routing is done, check if there is any current domain route and 
     * remember it's possible namespace value. Then check if there is any current 
     * route. 
     * If there is no current route found by any strategy, there is possible to 
     * create automatically new default route into current route property by
     * configured default controller/action values. Then it's necessary to check 
     * if request is targeting homepage or if router is configured to route 
     * request to default controller and action. If those two conditions are OK, 
     * create new route with default controller and action but in module router, 
     * create that new route with controller in namespace by domain route if 
     * there is any) and set this new route as current route to process default 
     * controller and action even if there is no route for it.
     * If there is current route defined and domain route namespace is not 
     * `NULL`, there is necessary to prepend domain route namespace into routed
     * controller name and redefine routed target. But prepend domain route
     * namespace into routed controller only if routed controller definition is 
     * defined relatively and if it not start with two slashes (`//`) or with 
     * single backslash (`\`).
     * @return \MvcCore\Ext\Routers\Module
     */
    protected function routeSetUpDefaultForHomeIfNoMatch () {
        /** @var $this \MvcCore\Ext\Routers\Module */
        $domainRouteNamespace = NULL;
        if ($this->currentDomainRoute !== NULL) 
            $domainRouteNamespace = $this->currentDomainRoute->GetNamespace();
        if ($this->currentRoute === NULL) {
            $request = $this->request;
            $requestIsHome = (
                trim($request->GetPath(), '/') == '' || 
                $request->GetPath() == $request->GetScriptName()
            );
            if ($requestIsHome || $this->routeToDefaultIfNotMatch) {
                list($dfltCtrl, $dftlAction) = $this->application->GetDefaultControllerAndActionNames();
                if ($domainRouteNamespace !== NULL) {
                    if (substr($dfltCtrl, 0, 2) != '//' && substr($dfltCtrl, 0, 1) != '\\') 
                        $dfltCtrl = rtrim($domainRouteNamespace, '\\') . '\\' . $dfltCtrl;
                }
                $this->SetOrCreateDefaultRouteAsCurrent(
                    static::DEFAULT_ROUTE_NAME, $dfltCtrl, $dftlAction
                );
                // set up requested params from query string if there are any 
                // (and path if there is path from previous fn)
                $requestParams = array_merge([], $this->request->GetParams(FALSE));
                unset($requestParams[static::URL_PARAM_CONTROLLER], $requestParams[static::URL_PARAM_ACTION]);
                $this->requestedParams = & $requestParams;
            }
        } else if ($domainRouteNamespace !== NULL) {
            $currentRouteCtrl = $this->currentRoute->GetController();
            if (substr($currentRouteCtrl, 0, 2) != '//' && substr($currentRouteCtrl, 0, 1) != '\\') {
                $currentRouteCtrl = rtrim($domainRouteNamespace, '\\') . '\\' . $currentRouteCtrl;
                $this->RedefineRoutedTarget($currentRouteCtrl, NULL, TRUE);
            }
        }
        return $this;
    }
}