<?php

namespace brain\controller;

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Slim\Views\Twig;
use brain\data\Settings;
use brain\utility\Sorting;

use function _\find;

class IndexControl
{
    public static function start(
        ServerRequestInterface $request,
        ResponseInterface $response,
        array $args
    ): ResponseInterface {
        //unset($_SESSION);
        $config   = new Settings();
        $settings = $config->getSettings();
        $view     = Twig::fromRequest($request);
        //checks dynamic render flag for site render status
        if ($settings['global']['dynamicRender']) {
            if ($settings['global']['dynamicRender'] == 'true') {
                $loader      = new \Twig\Loader\FilesystemLoader('../content/themes');
                $display     = new \Twig\Environment($loader, []);
                $template    = '';
                $pageOptions = [];

                $pageInfo = [
                    'keywords' => isset($settings['global']['keywords'])
                    ? $settings['global']['keywords']
                    : 'fipamo, blog, jamstack, php, markdown, js',
                    'description' => $settings['global']['descriptions'],
                    'image'       => $settings['global']['base_url'] . $settings['global']['background'],
                    'baseURL'     => $settings['global']['base_url'],
                ];

                if (isset($args['first'])) {
                    switch ($args['first']) {
                        case 'tags':
                                $template    = $settings['global']['theme'] . '/tags.twig';
                                $tag         = trim($args['second']);
                                $taglist     = Sorting::tags();
                                $item        = find($taglist, ['tag_name' => $tag]);
                                $pageOptions = [
                                    'title'         => 'Pages Tagged as ' . $item['tag_name'],
                                    'background'    => $pageInfo['image'],
                                    'tag_list'      => $item['pages'],
                                    'info'          => $pageInfo,
                                    'menu'          => $settings['menu'],
                                    'dynamicRender' => $settings['global']['dynamicRender'],
                                ];
                            break;
                        case 'archives':
                              $archive     = Sorting::archive();
                              $template    = $settings['global']['theme'] . '/archive.twig';
                              $pageOptions = [
                                  'title'         => 'Archive',
                                  'background'    => $pageInfo['image'],
                                  'archives'      => $archive,
                                  'info'          => $pageInfo,
                                  'menu'          => $settings['menu'],
                                  'dynamicRender' => $settings['global']['dynamicRender'],
                              ];

                            break;
                        default:
                          //check if page is a menu item, if not render along path as usual
                            $page = [];
                            $book = new Book();
                            if (is_numeric($args['first'])) {
                                $page = $book->findPageBySlug($args['third']);
                            } else {
                                $page = $book->findPageBySlug($args['first']);
                            }
                            $template    = $settings['global']['theme'] . '/' . $page['layout'] . '.twig';
                            $pageOptions = Sorting::page($page);

                            break;
                    }
                } else {
                    //index
                    $template    = $settings['global']['theme'] . '/' . $page['layout'] . '.twig';
                    $book        = new Book('');
                    $page        = $book->findPageBySlug();
                    $pageOptions = Sorting::page($page);
                }

                $html = $display->render($template, $pageOptions);
                $response->getBody()->write($html);
                return $response;
            } else {
                //if dynamic flag is false, load up html
                $view = Twig::fromRequest($request);
                $html = file_get_contents('../public/index.html');
                $response->getBody()->write($html);
                return $response;
            }
        } else {
            //if flag is not present, default to static html
            $view = Twig::fromRequest($request);
            $html = file_get_contents('../public/index.html');
            $response->getBody()->write($html);
            return $response;
        }
    }
}