<?php

namespace App\Http\Controllers;

use App\Models\Podcast\ImportedPodcast;
use App\Models\Podcast\Podcast;
use App\Models\Podcast\PodcastEpisode;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class PodcastController extends Controller
{
    public function index(Request $request) {
        if (!isset($request->per_page) || is_null($request)) {
            $pagination = 5;
        } else {
            $pagination = $request->per_page;
        }
        return Podcast::searchFilter($request)
            ->where('id', '!=', 1)
            ->with(['episodes', 'imported', 'owner'])
            ->paginate($pagination)
            ->toJson();
    }

    public function store(Request $request) {
        return $this->save($request);
    }

    /**
     * Method used to update a smart block
     * @param Request $request
     * @param $id
     * @return mixed
     */
    public function update(Request $request) {
        return $this->save($request);
    }

    public function destroy($id) {
        try {
            PodcastEpisode::where('podcast_id', $id)->delete();
            ImportedPodcast::where('podcast_id', $id)->delete();
            Podcast::destroy($id);
            return true;
        } catch(\Exception $e) {
            return response()->json(['message' => $e->getMessage()], 500);
        }
    }

    public function show(Request $request, $id) {
        $xml = simplexml_load_file($request->url);
        return $xml->channel;
    }

    public function getEpisodes(Request $request)
    {
        $xml = simplexml_load_file($request->url, null, LIBXML_NOCDATA);
        $xmlArray = (array) $xml->channel;
        //episodes are stored in `item` array
        return $xmlArray['item'];
    }

    protected function save(Request $request)
    {
        $user = Auth::user();
        $xml = simplexml_load_file($request->url);
        $itunes = $xml->channel->children('itunes', TRUE);

        $dbPodcast = Podcast::firstOrNew(['id' => $request->id]);
        $dbPodcast->fill([
            'url' => $request->url,
            'title' => $xml->channel->title,
            'creator' => $itunes->author,
            'description' => $itunes->subtitle,
            'language' => $xml->channel->language,
            'copyright' => $xml->channel->copyright,
            'link' => $xml->channel->link,
            'itunes_author'=> $itunes->author,
            'itunes_keywords' => '',
            'itunes_summary' => $itunes->summary,
            'itunes_subtitle' => $itunes->subtitle,
            'itunes_category' => '',
            'itunes_explicit' => $itunes->explicit,
            'owner' => $user->id,
        ])->save();

        return response()->json([
            'podcast' => $dbPodcast,
            'episodes' => $xml->channel->children('item', TRUE)
        ]);
    }
}