<?php

namespace KommaApp\Shop\Sitemap;


/**
 * Short description for the file.
 *
 * @author      Tim Van Samang <timvansamang@komma.pro>
 * @copyright   (c) 2012-2015, Komma Mediadesign
 */

use Carbon\Carbon;
use \KommaApp\Shop\Routes\RouteService;
use \Roumen\Sitemap\Sitemap;


class SitemapService
{

    private $routeService;

    public function __construct(RouteService $routeService)
    {
        $this->routeService = $routeService;
    }

    /***
     * This method will generate the sitemap based on the routes table
     * It will collect the routes based on the given groups array.
     * Then it will build the sitemap grouped by the linked id
     *
     * @param array $groups , wich routes we want in the sitemap
     * @param float $weight_from / the minimum weight of the sitemap itens
     * @return Sitemap object
     */

    public function getSitemap($groups = ['pages', 'categories', 'products'], $weight_from = 0.1, $homePage = true, $translation = true)
    {
        //Create the sitemap class
        $sitemap = new Sitemap([]); 
        //$sitemap = \App::make('sitemap');

        //Is the homepage variale set
        if ($homePage) {
            // Ad the home page on road / to the sitemap
            $hreflang = 'en_' . strtolower(\Shop::getDomainCountry());
            $sitemap->add(\URL::to('/'), '2012-08-25T20:10:00+02:00', '1.0', 'monthly', [], 'Home', [
                ['language' => $hreflang, 'url' => \URL::to('/en')],
                ]);

        }

        //Check if there is already an current langauage (uri)
        if (!$default_language = \Shop::getLanguageService()->getCurrentLanguageId()) {
            //Load the default_language based on the shop
            $default_language = \Shop::getShop()->default_language_id;
        }

        //Load the available languages
        $avialable_languages = \Shop::getLanguageService()->getLanguagesByShop(\Shop::getShop());

        //Loop trough the routes based on the given parameters
        foreach ($this->routeService->getSitemapRoutes($groups, $weight_from) as $type => $routeGroup) {

            //Default refresh is daily
            $refresh = 'daily';
            //Refresh for pageTranslation is monthly
            if ($type == 'Komma\Kms\Pages\Models\PageTranslation') $refresh = 'monthly';
            //Loop the routes per group (pages, products, categories)
            foreach ($routeGroup as $routes) {
                //Check if the translation is true and the route doesn't exist in the default language
                if ($translation && !isset($routes[$default_language])) {
                    //Route without translation
                    //Loop trough the available languages
                    foreach ($avialable_languages as $iso_key => $lang) {
                        //Check if the lang exist as route, if not continue
                        if (!isset($routes[$lang])) continue;
                        //If exist, create a sitemap entry without translations
                        $sitemap->add(\URL::to($routes[$lang]['route']), Carbon::now(), $routes[$lang]['weight'], $refresh);
                    }
                    //go out of the loop
                    continue;
                } else if (!isset($routes[$default_language])) continue;
                //The default language exists
                $translations = [];
                //Is translation true
                if ($translation) {
                    //Loop trough the available languages
                    foreach ($avialable_languages as $iso_key => $lang) {
                        //if it is the default lang, skip
//                        if ($lang == $default_language) continue;
                        //if the route in this lang doesnt exist, skip
                        if (!isset($routes[$lang])) continue;
                        //Add the route as translation

                        $hreflang = $iso_key . '_' . strtolower(\Shop::getDomainCountry());
                        $translations[] = ['language' => $hreflang, 'url' => \URL::to($routes[$lang]['route'])];
                    }
                }
                $sitemap->add(\URL::to($routes[$default_language]['route']), Carbon::now(), $routes[$default_language]['weight'], $refresh, [], $routes[$default_language]['name'], $translations);
            }
        }
        return $sitemap;
    }

}