<?php

namespace App\Http\Controllers\Visitor;

use App\Http\Controllers\Controller;
use App\Http\Requests;
use App\Models\Content;
use App\Models\Module;
use App\Models\Template;
use Illuminate\Support\Facades\Auth;

class ContentPage extends Controller
{
    /**
     * @var Content
     */
    protected $content;

    /**
     * @param Content $content
     */
    function __construct(Content $content)
    {

        $this->content = $content;
    }

    public function getPage($url)
    {
        $page = $this->content->getByURL($url);

        // no page available
        if (!$page) {
            abort(404);
        }

        return $this->renderPage($page);
    }

    /**
     * Method used for rendering page for visitor
     *
     * @param Content $page
     *
     * @return mixed
     * @throws \Exception
     */
    protected function renderPage(Content $page)
    {
        // test if loaded page is visible or not
        if ($page->status == Content::STATUS_PROTECTED && !Auth::user()) {
            throw new \Exception('Cannot access protected resources');
        }

        // get handler
        $handler = new $page->module_handler;

        $template = Module::where('is_template', true)->where('enabled', true)->first();

        // do something template-specific
        call_user_func_array([$template->handler, 'beforeRender'], [&$page]);

        // render page
        return $handler->render($page, '');
    }
}