<?php
declare(strict_types=1);
namespace App\Http\Controllers;

use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\Storage;
use OpenApi\Annotations as OA;

class Admin extends Controller
{
    /**
     * Префикс галерей на диске
     * @var string
     */
    private $prefixGallery = null;

    public function __construct()
    {
        $this->prefixGallery = env("GALLERY_PREFIX", "/gallery/");
    }


    /**
     * Создает галерею, ее имя и будет являться ключем для галереи
     * @return JsonResponse
     *
     * @OA\Post(
     *     path="/api/admin/gallery/create",
     *     tags={"admin"},
     *     operationId="createGallery",
     *     description="Create new gallery",
     *     @OA\Response(
     *         response=400,
     *         description="Invalid input"
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="successful operation",
     *         @OA\JsonContent(ref="#/components/schemas/Gallery"),
     *     ),
     * )
     */
    public function createGallery(): JsonResponse
    {
        $folderName = md5(uniqid());
        Storage::makeDirectory($this->prefixGallery . $folderName);
        $model = new \App\DTO\Gallery();
        $model->name = $folderName;

        return response()->json($model);
    }

    /**
     * Удаляет галерею вместе с содержимым
     * @param $id string
     * @return Response
     *
     * @OA\Delete(
     *     path="/api/admin/gallery/remove/{id}",
     *     tags={"admin"},
     *     operationId="removeGallery",
     *     description="Remove gallery with all photo",
     *     @OA\Parameter(
     *         name="id",
     *         in="path",
     *         required=true,
     *         description="Идентификатор галереи",
     *         @OA\Schema(
     *             type="string"
     *         )
     *     ),
     *     @OA\Response(
     *         response=400,
     *         description="Invalid input"
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="Success delete"
     *     ),
     * )
     */
    public function removeGallery(string $id): Response
    {
        $result = Storage::deleteDirectory($this->prefixGallery . $id);
        return response('',$result ? 200 : 400);
    }

    /**
     * Возвращает список галерей
     * @return JsonResponse
     *
     * @OA\Get(
     *     path="/api/admin/gallery/list",
     *     tags={"admin"},
     *     operationId="getGalleryList",
     *     description="Get list gallery",
     *     @OA\Response(
     *         response=400,
     *         description="Invalid input"
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="Список существующих галерей, без файлов.",
     *         @OA\JsonContent(
     *             type="array",
     *             @OA\Items(ref="#/components/schemas/Gallery")
     *         )
     *     ),
     * )
     */
    public function listGallery(): JsonResponse
    {
        $list = Storage::allDirectories($this->prefixGallery);
        $list=array_map(static function ($item){
            $gal=new \App\DTO\Gallery();
            $gal->name=explode('/',$item)[1];
           return $gal;
        },$list);
        return response()->json($list);
    }

    /**
     * Загрузка файлов
     * @param Request $request
     * @param string $id
     * @return JsonResponse
     *
     * @OA\Post(
     *     path="/api/admin/file/upload/{galleryId}",
     *     tags={"admin"},
     *     operationId="uploadFile",
     *     description="Upload file in gallery",
     *     @OA\Parameter(
     *         name="galleryId",
     *         in="path",
     *         required=true,
     *         description="Идентификатор галереи",
     *         @OA\Schema(
     *             type="string"
     *         )
     *     ),
     *    @OA\RequestBody(
     *      required=true,
     *      @OA\MediaType(
     *          mediaType="multipart/form-data",
     *          @OA\Schema(
     *              @OA\Property(
     *                  description="Photo file",
     *                  property="file",
     *                  type="string",
     *                  format="binary",
     *              ),
     *              required={"file"}
     *          )
     *      )
     *  ),
     *     @OA\Response(
     *         response=400,
     *         description="Invalid input"
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="successful operation",
     *         @OA\JsonContent(
     *           @OA\Property(
     *             property="fileId",
     *             type="string",
     *             example="1bc29b36f623ba82aaf6724fd3b16718",
     *             description="Идентификатор фотографии"
     *           ),
     *           @OA\Property(
     *             property="galleryId",
     *             type="string",
     *             example="1bc29b36f623ba82aaf6724fd3b16718",
     *             description="Идентификатор галереи"
     *           ),
     *         ),
     *      ),
     * )
     */
    public function uploadFile(Request $request, string $id): JsonResponse
    {
        $file = $request->file('file');

        $list = explode(',', env("ALLOW_MIME_TYPES", "jpeg,png"));
        $list = array_map(static function ($item) {
            return 'image/' . $item;
        }, $list);
        if (empty($file) || !in_array($file->getMimeType(), $list, true)) {
            abort(400, 'Only jpg/png files!');
        }

        $fileName = implode(".",[md5(uniqid()),$file->extension()]);

        $result = Storage::put($this->prefixGallery . $id . "/".$fileName,$file->getContent() );
        if ($result) {
            return response()->json(['galleryId' => $id, 'fileId' => $fileName]);
        } else {
            abort(400, 'File not found or not write');
        }
    }

    /**
     * Удаляет фотографию из галереи
     * @param string $galleryId
     * @param string $fileId
     * @return Response
     *
     * @OA\Delete(
     *     path="/api/admin/file/remove/{galleryId}/{fileId} ",
     *     tags={"admin"},
     *     operationId="removeFile",
     *     description="Remove file in gallery",
     *     @OA\Parameter(
     *         name="galleryId",
     *         in="path",
     *         required=true,
     *         description="Идентификатор галереи",
     *         @OA\Schema(
     *             type="string"
     *         )
     *     ),
     *     @OA\Parameter(
     *         name="fileId",
     *         in="path",
     *         required=true,
     *         description="Идентификатор фотографии",
     *         @OA\Schema(
     *             type="string"
     *         )
     *     ),
     *     @OA\Response(
     *         response=400,
     *         description="Invalid input"
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="Success delete"
     *     ),
     * )
     */
    public function removeFile(string $galleryId, string $fileId): Response
    {
        $result = Storage::delete($this->prefixGallery . $galleryId . "/" . $fileId);
        return response('',$result ? 200 : 400);
    }
}