<?php

namespace App\Services;

use App\Models\Episode;
use App\Models\Hentai;
use App\Models\Studios;

use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Storage;

use Intervention\Image\Laravel\Facades\Image;
use Intervention\Image\Encoders\WebpEncoder;

class EpisodeService
{
    public function generateSlug(string $title): string
    {
        $slug = Str::slug($title);
        $slugParts = explode('-', $slug);
        $lastPart = $slugParts[array_key_last($slugParts)];

        if (is_numeric($lastPart) && $lastPart < 1000) {
            $slugParts[array_key_last($slugParts)] = 's'.$lastPart;
            return implode('-', $slugParts);
        }

        return $slug;
    }

    public function createEpisode(
        Request $request, 
        Hentai $hentai,
        int $episodeNumber,
        Studios $studio = null,
        Episode $referenceEpisode = null
    ): Episode
    {
        $episode = new Episode();
        $episode->title = $referenceEpisode->title ?? $request->input('title');
        $episode->title_search = preg_replace("/[^A-Za-z0-9 ]/", '', $episode->title);
        $episode->title_jpn = $referenceEpisode->title_jpn ?? $request->input('title_jpn');
        $episode->slug = "{$hentai->slug}-{$episodeNumber}";
        $episode->hentai_id = $hentai->id;
        $episode->studios_id = $referenceEpisode->studio->id ?? $studio->id;
        $episode->episode = $episodeNumber;
        $episode->description = $referenceEpisode ? $request->input('description') : $request->input("description{$episodeNumber}");
        $episode->url = $referenceEpisode ? $request->input('baseurl') : rtrim($request->input('baseurl'), '/').'/E'.str_pad($episodeNumber, 2, '0', STR_PAD_LEFT);
        $episode->view_count = 0;
        $episode->interpolated = true;
        $episode->is_dvd_aspect = false;
        $episode->release_date = $referenceEpisode->release_date ?? Carbon::parse($request->input('releasedate'))->format('Y-m-d');
        $episode->cover_url = "/images/hentai/{$hentai->slug}/cover-ep-{$episodeNumber}.webp";
        $episode->save();

        // Tagging
        $tags = $referenceEpisode ? $referenceEpisode->tags : json_decode($request->input('tags'));
        foreach ($tags as $t) {
            $episode->tag($referenceEpisode ? $t->name : $t->value);
        }

        return $episode;
    }

    public function updateEpisode(Request $request, Studios $studio, int $episodeId): Episode
    {
        $episode = Episode::where('id', $episodeId)->firstOrFail();
        $episode->studios_id = $studio->id;
        $episode->description = $request->input('description');
        $episode->url = $request->input('baseurl');
        $episode->release_date = Carbon::parse($request->input('releasedate'))->format('Y-m-d');
        $episode->interpolated = $request->input('interpolated') == 'yes';
        $episode->interpolated_uhd = $request->input('downloadUHDi1') ? true : false;
        $episode->is_dvd_aspect = $request->input('dvd') == 'yes';
        $episode->save();

        // Tagging
        $tags = json_decode($request->input('tags'));
        $newtags = [];
        foreach ($tags as $t) {
            $newtags[] = $t->value;
        }
        $episode->retag($newtags);

        return $episode;
    }

    public function getOrCreateStudio(string $studioName): Studios
    {
        return Studios::firstOrCreate(
            ['name' => $studioName],
            ['slug' => Str::slug($studioName)]
        );
    }


    public function createOrUpdateCover(Request $request, Episode $episode, string $slug, int $episodeNumber): void
    {
        if (! $request->hasFile("episodecover{$episodeNumber}")) {
            return;
        }

        // Create Folder for Image Upload
        if (! Storage::disk('public')->exists("/images/hentai/{$slug}")) {
            Storage::disk('public')->makeDirectory("/images/hentai/{$slug}");
        }

        // Encode and save cover image
        Image::read($request->file("episodecover{$episodeNumber}")->getRealPath())
            ->cover(268, 394)
            ->encode(new WebpEncoder())
            ->save(Storage::disk('public')->path($episode->cover_url));
    }
}