<?php

namespace App\Http\Controllers;

use App\Guide;
use App\News;
use Illuminate\Http\Response;
use Illuminate\Http\Request;
use tidy;

class GuideController extends Controller
{
    public function __construct()
    {
        $this->middleware([ "auth" ]);
        $this->middleware([ "lang" ]);

        $this->middleware([ "check.auth:guides.show" ])->only("show", "index");
        $this->middleware([ "check.auth:guides.create" ])->only("create", "store");
        $this->middleware([ "check.auth:guides.edit" ])->only("edit", "update");
        $this->middleware([ "check.auth:guides.delete" ])->only("delete");
    }


    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(Request $request)
    {
        $guides = Guide::query()->orderBy("created_at", "desc")->get();

        return Response::detect("guides.index", [ "guides" => $guides]);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        return Response::detect("guides.create");
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        $requestGuide = $request->validate([
            "name" => "required|max:255",
            "guide_articles" => "required",
            "guide_category_id" => "required",
        ]);

        $guide = new Guide($requestGuide);

        //If an image has been uploaded, store the file
        if($request->file("resource")) {
            $guide->resource_id = ResourceController::store($request)->id;
        }

        $saved = $guide->save();

        if(!$saved) {
            return redirect()->route("guides.store");
        } else {
            $guides = Guide::query()->get();

            if($request->newsoption == true){
                $news = new News();

                $news->name = "Ny vejledning";
                $news->subname = $guide->name;
                $news->arrangement_id = $guide->id;
                $news->type_id = '4';
                $news->news_expiration_date = $request->input("news_expiration_date");

                $news->content = $guide->guide_articles;

                if($guide->resource_id !== null)
                    $news->resource_id = $guide->resource_id;

                NewsController::storeAndGet($news);
            }

            return redirect()->route("guides.index", ['guides' => $guides]);
        }
    }

    /**
     * Display the specified resource.
     *
     * @param  \App\Guide  $guide
     * @return \Illuminate\Http\Response
     */
    public function show(Guide $guide)
    {
        return Response::detect("guides.show", [ "guide" => $guide]);
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  \App\Guide  $guide
     * @return \Illuminate\Http\Response
     */
    public function edit(Guide $guide)
    {
        $guidee = Guide::query()->where("id", "=", $guide->id)->first();
        return Response::detect("guides.edit", ["guide" => $guidee]);
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \App\Guide  $guide
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, Guide $guide)
    {
        $data = $request->validate([
            "name" => "required|max:255",
            "guide_articles" => "required",
            "guide_category_id" => "required",
        ]);

        $guidee = Guide::query()->where("id", "=", $guide->id)->first();
        $guidee->update($data);
        $saved = $guidee->save();

        if(!$saved){
            return redirect()->route("guides.update", [ "guide" => $guide ]);
        }else{
            $guides = Guide::query()->get();

            if($request->newsoption == true){
                $news = new News();

                $news->name = "Vejledning opdateret";
                $news->subname = $guidee->name;
                $news->arrangement_id = $guide->id;
                $news->type_id = '4';

                $news->content = $this->closetags(substr($guidee->guide_articles, 0, 300)). '<br><a style="font-weight: 700;" href="' . route("guides.show", ["guide" => $guide]). '" class="sde-blue ">Læs mere</a>';

                NewsController::storeAndGet($news);
            }

            return redirect()->route("guides.index", ['guides' => $guides]);
        }
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  Guide  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        // Find the guide you want to remove
        $guide = Guide::find($id);
        // Find the news the you made when creating the guide (if there is a news)
        $news = News::query()->join('news_types', 'news_types.id', '=', 'news.type_id')->where("type", "=", "Guide")->where("arrangement_id", "=", $id);

        //Delete the news or/and guide
        $news->delete();
        $guide->delete();


        return redirect()->route("guides.index");
    }

    //Used to fix html, that have been substringed
    public function closetags($html) {
        preg_match_all('#<(?!meta|img|br|hr|input\b)\b([a-z]+)(?: .*)?(?<![/|/ ])>#iU', $html, $result);
        $openedtags = $result[1];
        preg_match_all('#</([a-z]+)>#iU', $html, $result);
        $closedtags = $result[1];
        $len_opened = count($openedtags);
        if (count($closedtags) == $len_opened) {
            return $html;
        }
        $openedtags = array_reverse($openedtags);
        for ($i=0; $i < $len_opened; $i++) {
            if (!in_array($openedtags[$i], $closedtags)) {
                $html .= '</'.$openedtags[$i].'>';
            } else {
                unset($closedtags[array_search($openedtags[$i], $closedtags)]);
            }
        }
        return $html;
    }

    //Used for checking if the currently typed guide name is unique. Create version
    public function nameCheck(Request $request) {
        $guide = Guide::query()->where('name', 'LIKE',$request->nameCheck)->get();
        if(count($guide) > 0 && $request->nameCheck !== NULL){
            return 1;
        }
    }

    //Used for checking if the currently typed guide name is unique. Edit version
    public function nameCheckUpdate(Request $request) {
        $guide = Guide::query()->where('name', 'LIKE',$request->nameCheck)->where('id', '!=', $request->id)->get();
        if(count($guide) > 0 && $request->nameCheck !== NULL){
            return 1;
        }
    }

    // Runs the ajax call when changing the select field in guides.index (app)
    public function showCategory(Request $request){
        if($request->ajax()) {
            // Get all guides where the category is what you want
            if ($request->category != 'All')
                $guides = Guide::query()->orderBy("created_at", "desc")->where('guide_category_id', '=', $request->category)->get();
            else
                $guides = Guide::query()->orderBy("created_at", "desc")->get();

            $output = '';

            // Begin showing all guides with the given category
            if(!$guides->isEmpty()) {
                foreach ($guides as $guide) {
                    $output .= '<div class="card">';
                    if ($guide->resource_id !== null) {
                        $output .= '<div class="header" style="background-size: cover; background-position: center; background-image: url(' . asset(\App\Resource::query()->where("id", "=", $guide->resource_id)->first()->filename) . ');">' .
                            '<h3 style="text-shadow: 2px 2px 2px #00788A;">' . $guide->name . '</h3>' .
                            '</div>';
                    } else {
                        $output .= '<div class="header">' .
                            '<h3>' . $guide->name . '</h3>' .
                            '</div>';
                    }

                    $output .= '<div class="container">';
                    $tags = ['<p>', '<b>', '<em>', '<a>', '<u>', '<s>', '<sub>', '<ul>', '<li>', '<sup>', '<div>', '<blockquote>', '<ol>', '<strong>', '<br>', '<h1>', '<h2>', '<h3>', '<h4>', '<h5>', '<h6>', '<h7>', '<span>'];
                    $output .= '' . \App\Helpers::closetags(substr(strip_tags($guide->guide_articles, $tags), 0, 300)) . '' .
                        '<div class="row" style="justify-content: center;">';

                    if (request()->cookie('languagesSetting') == "dk")
                        $output .= '<a style="margin: 0; padding: 0; text-align: center; font-weight: 700;" class="sde-blue" href="'. route("guides.show", ["guide" => $guide->id ]) .'">Læs mere</a>';
                    elseif (request()->cookie('languagesSetting') == "en")
                        $output .= '<a style="margin: 0; padding: 0; text-align: center; font-weight: 700;" class="sde-blue" href="'. route("guides.show", ["guide" => $guide->id ]) .'">Read more</a>';
                    else
                        $output .= '<a style="margin: 0; padding: 0; text-align: center; font-weight: 700;" class="sde-blue" href="'. route("guides.show", ["guide" => $guide->id ]) .'">Læs mere</a>';

                            $output .= '</div>'.
                        '</div>'.
                    '</div>';
                }
            } else { // If there are no guides with the given category, then display error message
                if (request()->cookie('languagesSetting') == "dk")
                    $output .= '<p style="margin-bottom: auto; text-align: center">Der er ingen vejledninger af denne kategori</p>';
                elseif (request()->cookie('languagesSetting') == "en")
                    $output .= '<p style="margin-bottom: auto; text-align: center">There are no guides of this category</p>';
                else
                    $output .= '<p style="margin-bottom: auto; text-align: center">Der er ingen vejledninger af denne kategori</p>';
            }

                return Response($output);
        }
    }
}