<?php

namespace engine;

class ThemeEngine
{
    public $data = [];
    public $loader;
    public $twig;

    public function __construct(string $themePath, string $themeAssetPath)
    {
        $var                  = [];
        $this->themePath      = $themePath;
        $this->themeAssetPath = $themeAssetPath;
        $path                 = explode('/', $themeAssetPath);
        $this->themeFolder    = $path[4];
        $this->settings       = json_decode(
            file_get_contents('./data/settings.json'),
            true
        );
        $this->posts    = json_decode(file_get_contents('./data/posts.json'), true);
        $this->archives = json_decode(
            file_get_contents('./data/archives.json'),
            true
        );
        $this->loader = new \Twig\Loader\FilesystemLoader(
            $themePath . '/' . $path[4]
        );
        $this->twig = new \Twig\Environment($this->loader, []);
        $this->router($_SERVER['REQUEST_URI']);
    }

    public function router(string $request)
    {
        $pageInfo = [
            'keywords'    => $this->settings['keywords'],
            'description' => $this->settings['description'],
            'image'       => $this->themeAssetPath . '/assets/images/global/default-bg.jpg',
        ];

        $featureList = explode(',', $this->posts['feature']);
        $fileList    = explode(',', $this->posts['files']);

        $images = [];
        $files  = [];
        foreach ($featureList as $file) {
            $item = trim($file);
            $ext  = pathinfo($item, PATHINFO_EXTENSION);
            if ($item != null || $item != '') {
                array_push($images, ['file' => $item, 'type' => trim($ext)]);
            }
        }

        foreach ($fileList as $file) {
            $item = trim($file);
            $ext  = pathinfo($item, PATHINFO_EXTENSION);
            if ($item != null || $item != '') {
                array_push($files, ['file' => $item, 'type' => trim($ext)]);
            }
        }

        $menu = $this->settings['menu'];
        switch ($request) {
            case '/':
                $recent   = $this->posts['recent_posts'];
                $featured = $this->posts['featured_posts'];
                $template = 'index.twig';
                $content  = $this->posts['index-content-no-image'];

                $pageOptions = [
                    'debug'         => true, // for theme kit
                    'theme'         => $this->themeFolder, // for theme kit
                    'title'         => 'This is Fipamo',
                    'dynamicRender' => $this->settings['dynamicRender'],
                    'background'    => $this->themeAssetPath . '/assets/images/global/default-bg.jpg',
                    'recent'        => $recent,
                    'featured'      => $featured,
                    'info'          => $pageInfo,
                    'menu'          => $menu,
                    'content'       => $content,
                    'media'         => $images,
                    'files'         => $files,
                ];
                break;
            case '/page':
                $content     = $this->posts['content'];
                $meta        = $this->posts['meta'];
                $template    = $request . '.twig';
                $pageOptions = [
                    'debug'         => true, // for theme kit
                    'theme'         => $this->themeFolder, // for theme kit
                    'title'         => 'Page Title',
                    'dynamicRender' => $this->settings['dynamicRender'],
                    'background'    => $this->themeAssetPath . '/assets/images/global/default-bg.jpg',
                    'content'       => $content,
                    'meta'          => $meta,
                    'info'          => $pageInfo,
                    'menu'          => $menu,
                    'media'         => $images,
                    'files'         => $files,
                ];
                break;
            case '/tags':
                $tags        = $this->settings['tag_list'];
                $template    = 'tags.twig';
                $pageOptions = [
                    'debug'         => true, // for theme kit
                    'theme'         => $this->themeFolder, // for theme kit
                    'title'         => 'Pages Tagged as Tag',
                    'dynamicRender' => $this->settings['dynamicRender'],
                    'background'    => $this->themeAssetPath . '/assets/images/global/default-bg.jpg',
                    'tag_list'      => $tags,
                    'info'          => $pageInfo,
                    'menu'          => $menu,
                ];
                break;
            case '/archive':
                $archive     = $this->archives;
                $template    = 'archive.twig';
                $pageOptions = [
                    'debug'         => true, // for theme kit
                    'theme'         => $this->themeFolder, // for theme kit
                    'title'         => 'Archive',
                    'dynamicRender' => $this->settings['dynamicRender'],
                    'background'    => $this->themeAssetPath . '/assets/images/global/default-bg.jpg',
                    'archives'      => $archive['archives'],
                    'info'          => $pageInfo,
                    'menu'          => $menu,
                ];
                break;
            default:
                set_error_handler(function ($errno, $errstr, $errfile, $errline) {
                    // throw new \ErrorException($errstr, $errno, 0, $errfile, $errline);
                    $error = $errstr;
                });
                $template    = 'error.twig';
                $pageOptions = [
                    'debug'         => true, // for theme kit
                    'theme'         => $this->themeFolder, // for theme kit
                    'title'         => 'Uh oh',
                    'dynamicRender' => $this->settings['dynamicRender'],
                    'background'    => $this->themeAssetPath . '/assets/images/global/default-bg.jpg',
                    'info'          => $pageInfo,
                    'content'       => "Uh Oh, so there's a problem.",
                    'menu'          => $menu,
                    'media'         => $images,
                    'files'         => $files,
                ];

                break;
        }

        echo $this->twig->render($template, $pageOptions);
    }
}