<?php

namespace Modules\StudioPlus\Http\Controllers\API;

use FFMpeg\FFMpeg;
use Illuminate\Support\Str;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Storage;
use Modules\StudioPlus\Entities\Upload;
use Modules\StudioPlus\Transformers\UploadResource;

class VideoUploadController extends Controller
{
    public function index(Request $request)
    {
        $uploads = Upload::query()
            ->with(['thumbnails'])
            ->where('user_id', auth()->id())
            ->latest()
            ->when(
                $request->filled('per_page'),
                fn ($query) => $query->paginate($request->per_page),
                fn ($query) => $query->paginate(15)
            );

        return UploadResource::collection($uploads);
    }

    public function upload(Request $request)
    {
        $fileName = $request->file('video')->getClientOriginalName();
        $explodedFileName = explode('.', $fileName);
        $title = collect(Arr::except($explodedFileName, array_key_last($explodedFileName)))->join(' ');
        $upload = Upload::create([
            'user_id' => auth()->id(),
            'title' => $title,
            'filename' => $fileName,
        ]);

        $folderPath = "public/videos/" . auth()->id() . "/upload-{$upload->id}";
        if (!file_exists(storage_path("app/$folderPath"))) {
            Storage::makeDirectory($folderPath);
        }

        $filePath = Storage::put($folderPath, $request->video);
        $videoUrl = Storage::url($filePath);
        $upload->video_url = $videoUrl;
        $upload->save();

        $ffmpeg = FFMpeg::create();
        $video = $ffmpeg->open(url($videoUrl));

        $ffprobe    = \FFMpeg\FFProbe::create(get_ffprobe_config());
        $codeAc = $ffprobe->format(url($videoUrl))->get('duration');

        $timeFrameInSeconds = 2;
        for ($i = 0; $i < 3; $i++) {
            if ($timeFrameInSeconds < round($codeAc, PHP_ROUND_HALF_DOWN)) {
                $thumbnailFilename = Str::random(10)  . ".jpg";
                $thumbnailFilePath = "$folderPath/thumbnails/$thumbnailFilename";
                $thumbnailFullPath = storage_path("app/$thumbnailFilePath");

                if (!file_exists(storage_path("app/$folderPath/thumbnails"))) {
                    Storage::makeDirectory("$folderPath/thumbnails");
                }

                $video->frame(\FFMpeg\Coordinate\TimeCode::fromSeconds($timeFrameInSeconds))
                    ->save($thumbnailFullPath);

                $upload->thumbnails()->create([
                    'thumbnail_url' => Storage::url($thumbnailFilePath),
                    'filename' => $thumbnailFilename
                ]);

                $timeFrameInSeconds += 2;
            }
        }

        return $upload->load(['thumbnails']);
    }
}