<?php

namespace Komma\Blog;

use Illuminate\Routing\Controller;
use Illuminate\Support\Facades\App;
use Komma\Blog\BlogService;
use Komma\Page\PageService;

class BlogController extends Controller
{

    public $data;
    protected $blogService;
    protected $pageService;

    public function __construct(BlogService $blogService, PageService $pageService)
    {
        $this->blogService = $blogService;
        $this->pageService = $pageService;
        //get amount of blogitems in db
        $items =$this->blogService->getAmountOfBlogItems();
        $this->data = [
            'amountOfItems' => $items,
            //calculated how many paginations there should be
            'amountOfPagination' => (ceil(($items - 4) / 5) + 1)
        ];
    }

    /**
     * Show all articles list
     *
     * @param int $pagination
     * @return mixed
     */
    public function show($pagination = 1)
    {
        //if pagination shouldn't exist, through 404 page
        if(($pagination > $this->data['amountOfPagination'])||($pagination <= 0)){
            App::abort(404);
        }

        $this->data['pagination'] = $pagination;
        $this->data = array_merge($this->data, $this->pageService->getContent('blog'));

        if($pagination == 1)
        {
            //First page only loads 4 blogitems
            $this->data['blogArticles'] = $this->blogService->getBlogItems(4);
            $this->data['firstPage'] = true;
        }
        else{

            //calculation for how much articles must be skipped
            $pagination-=2;
            $paginationSkip = 4 + $pagination*5;

            //load next 5 blog items
            $this->data['blogArticles'] = $this->blogService->getBlogItems(5, $paginationSkip);
        }

        return \View::make('layouts.pages.blog')->with('data', (object)$this->data);
    }

    /**
     * Load an specific article
     *
     * @param $slug
     * @return mixed
     */
    public function showArticle($slug){
        $article = $this->blogService->getBlogItem($slug);
        if($article==false){
            App::abort(404);
        }
        $this->data = array_merge($this->data, $this->pageService->getContent('blog'));
        $this->data = array_merge($this->data, $article);

        //get Previous blogitems
        $previousBlog = $this->blogService->getPreviousBlogItems($slug, 2);

        //fill to 2 blog items from newest when there aren't 2 previous blogitems
        if(count($previousBlog) == 0 ){
            $previousBlog = $this->blogService->getLatestBlogItems(2);
        }
        if(count($previousBlog) == 1 ){
            $previousBlog = array_merge($previousBlog, $this->blogService->getLatestBlogItems(1));
        }


        $this->data = array_merge($this->data, ['articleBlock'    => ['header' => 'Lees ook andere blogitems', 'articles'=> $previousBlog, 'footer'=>'Bekijk alle blog artikelen', 'url'=>'/blog']]);
        return \View::make('layouts.pages.blogArticle')->with('data', (object)$this->data);
    }
}