<?php

namespace App\Service\MediaProcessing;

use App\Models\Episode;
use App\Models\Season;
use App\Models\Show;
use App\Service\TMDBApi\ShowsApi;
use Illuminate\Support\Str;
use function PHPUnit\Framework\containsIdentical;

class ShowProcessingService implements ProcessingInterface
{
    private ShowsApi $showsApi;

    public function __construct(ShowsApi $showsApi)
    {
        $this->showsApi = $showsApi;
    }

    public function process($item, $job)
    {
        $methodName = "get".ucfirst($job);

        if (!method_exists($this, $methodName)) {
            // @todo maybe raise an exception here
            return;
        }

        $this->$methodName($item);
    }

    private function getDetails($item)
    {
        $tmdbShow = $this->showsApi->getTvshow($item->tmdb_id);
        $tmdbShow['tmdb_id'] = $tmdbShow['id'];

        $show = Show::where('tmdb_id', $item->tmdb_id)->first();

        if ($show) {
            return;
        }

        $tmdbShow['slug'] = Str::slug($tmdbShow['name'].'-'.$tmdbShow['tmdb_id']);
        $tmdbShow['first_air_date'] = $tmdbShow['first_air_date'] ? new \DateTime($tmdbShow['first_air_date']) : null;
        $tmdbShow['last_air_date'] = $tmdbShow['last_air_date'] ? new \DateTime($tmdbShow['last_air_date']) : null;

        $show = Show::create($tmdbShow);

        if (!empty($tmdbShow['seasons'])) {
            $this->processSeasons($show, $tmdbShow['seasons']);
        }

        // @todo remove jobs from db
    }

    private function getAlternativeTitles()
    {

    }

    private function processSeasons(Show $show, array $seasons)
    {
        foreach ($seasons as $season) {
            $showSeason = Season::where('tmdb_id', $season['id'])
                ->where('show_id', $show->id)
                ->first();

            if (!$showSeason) {
                $showSeason =  Season::create($season);

                $tmdbSeasonDetails = $this->showsApi->getSeasonDetails($show->tmdb_id, $season['season_number']);

                $this->processEpisodes($show, $showSeason, $tmdbSeasonDetails['episodes'] ?? []);
            }
        }
    }

    private function processEpisodes($show, $season, array $tmdbEpisodes)
    {
        if (empty($tmdbEpisodes)) {
            return;
        }

        foreach ($tmdbEpisodes as $tmdbEpisode) {
            $episode = Episode::where('show_id', $show->id)
                ->where('season_id', $season->id)
                ->where('tmdb_id', $tmdbEpisode['id'])
                ->first();

            if (!$episode) {
                $tmdbEpisode['tmdb_id'] = $tmdbEpisode['id'];
                $tmdbEpisode['slug'] = Str::slug($tmdbEpisode['name']);
                $tmdbEpisode['tmdb_show_id'] = $tmdbEpisode['show_id'];
                $tmdbEpisode['show_id'] = $show->id;
                $tmdbEpisode['tmdb_id'] = $season->id;

                Episode::create($tmdbEpisode);
            }
        }
    }
}