<?php
/**
 * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
 *
 * Copyright (C) 2019 - 2022 Jan Böhmer (https://github.com/jbtronics)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace App\Controller;

use App\Entity\Parameters\AttachmentTypeParameter;
use App\Entity\Parameters\CategoryParameter;
use App\Entity\Parameters\ProjectParameter;
use App\Entity\Parameters\FootprintParameter;
use App\Entity\Parameters\GroupParameter;
use App\Entity\Parameters\ManufacturerParameter;
use App\Entity\Parameters\MeasurementUnitParameter;
use App\Entity\Parameters\PartParameter;
use App\Entity\Parameters\StorelocationParameter;
use App\Entity\Parameters\SupplierParameter;
use App\Entity\Parts\Part;
use App\Entity\PriceInformations\Currency;
use App\Repository\ParameterRepository;
use App\Services\Attachments\AttachmentURLGenerator;
use App\Services\Attachments\BuiltinAttachmentsFinder;
use App\Services\Attachments\PartPreviewGenerator;
use App\Services\Tools\TagFinder;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Asset\Packages;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Serializer;

/**
 * In this controller the endpoints for the typeaheads are collected.
 *
 * @Route("/typeahead")
 */
class TypeaheadController extends AbstractController
{
    protected AttachmentURLGenerator $urlGenerator;
    protected Packages $assets;

    public function __construct(AttachmentURLGenerator $URLGenerator, Packages $assets)
    {
        $this->urlGenerator = $URLGenerator;
        $this->assets = $assets;
    }

    /**
     * @Route("/builtInResources/search", name="typeahead_builtInRessources")
     */
    public function builtInResources(Request $request, BuiltinAttachmentsFinder $finder): JsonResponse
    {
        $query = $request->get('query');
        $array = $finder->find($query);

        $result = [];

        foreach ($array as $path) {
            $result[] = [
                'name' => $path,
                'image' => $this->assets->getUrl($this->urlGenerator->placeholderPathToAssetPath($path)),
            ];
        }

        $normalizers = [
            new ObjectNormalizer(),
        ];
        $encoders = [
            new JsonEncoder(),
        ];
        $serializer = new Serializer($normalizers, $encoders);
        $data = $serializer->serialize($result, 'json');

        return new JsonResponse($data, 200, [], true);
    }

    /**
     * This functions map the parameter type to the class, so we can access its repository
     * @param  string  $type
     * @return class-string
     */
    private function typeToParameterClass(string $type): string
    {
        switch ($type) {
            case 'category':
                return CategoryParameter::class;
            case 'part':
                return PartParameter::class;
            case 'device':
                return ProjectParameter::class;
            case 'footprint':
                return FootprintParameter::class;
            case 'manufacturer':
                return ManufacturerParameter::class;
            case 'storelocation':
                return StorelocationParameter::class;
            case 'supplier':
                return SupplierParameter::class;
            case 'attachment_type':
                return AttachmentTypeParameter::class;
            case 'group':
                return GroupParameter::class;
            case 'measurement_unit':
                return MeasurementUnitParameter::class;
            case 'currency':
                return Currency::class;

            default:
                throw new \InvalidArgumentException('Invalid parameter type: '.$type);
        }
    }

    /**
     * @Route("/parts/search/{query}", name="typeahead_parts")
     * @param  string  $query
     * @param  EntityManagerInterface  $entityManager
     * @return JsonResponse
     */
    public function parts(string $query, EntityManagerInterface $entityManager, PartPreviewGenerator $previewGenerator,
    AttachmentURLGenerator $attachmentURLGenerator): JsonResponse
    {
        $this->denyAccessUnlessGranted('@parts.read');

        $repo = $entityManager->getRepository(Part::class);

        $parts = $repo->autocompleteSearch($query);

        $data = [];
        foreach ($parts as $part) {
            //Determine the picture to show:
            $preview_attachment = $previewGenerator->getTablePreviewAttachment($part);
            if($preview_attachment !== null) {
                $preview_url = $attachmentURLGenerator->getThumbnailURL($preview_attachment, 'thumbnail_sm');
            } else {
                $preview_url = '';
            }

            /** @var Part $part */
            $data[] = [
                'id' => $part->getID(),
                'name' => $part->getName(),
                'category' => $part->getCategory() ? $part->getCategory()->getName() : 'Unknown',
                'footprint' => $part->getFootprint() ? $part->getFootprint()->getName() : '',
                'description' => mb_strimwidth($part->getDescription(), 0, 127, '...'),
                'image' => $preview_url,
                ];
        }

        return new JsonResponse($data);
    }

    /**
     * @Route("/parameters/{type}/search/{query}", name="typeahead_parameters", requirements={"type" = ".+"})
     * @param  string  $query
     * @return JsonResponse
     */
    public function parameters(string $type, EntityManagerInterface $entityManager, string $query = ""): JsonResponse
    {
        $class = $this->typeToParameterClass($type);

        $test_obj = new $class();
        //Ensure user has the correct permissions
        $this->denyAccessUnlessGranted('read', $test_obj);

        /** @var ParameterRepository $repository */
        $repository = $entityManager->getRepository($class);

        $data = $repository->autocompleteParamName($query);

        return new JsonResponse($data);
    }

    /**
     * @Route("/tags/search/{query}", name="typeahead_tags", requirements={"query"= ".+"})
     */
    public function tags(string $query, TagFinder $finder): JsonResponse
    {
        $this->denyAccessUnlessGranted('@parts.read');

        $array = $finder->searchTags($query);

        $normalizers = [
            new ObjectNormalizer(),
        ];
        $encoders = [
            new JsonEncoder(),
        ];

        $serializer = new Serializer($normalizers, $encoders);
        $data = $serializer->serialize($array, 'json');

        return new JsonResponse($data, 200, [], true);
    }
}