<?php
/**
 * GroupController.php
 * Copyright (c) 2019 james@firefly-iii.org
 *
 * This file is part of Firefly III (https://github.com/firefly-iii).
 *
 * 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 FireflyIII\Api\V1\Controllers;

use FireflyIII\Api\V1\Requests\ObjectGroupUpdateRequest;
use FireflyIII\Models\Account;
use FireflyIII\Models\ObjectGroup;
use FireflyIII\Repositories\ObjectGroup\ObjectGroupRepositoryInterface;
use FireflyIII\Transformers\ObjectGroupTransformer;
use FireflyIII\Transformers\PiggyBankTransformer;
use FireflyIII\User;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Pagination\LengthAwarePaginator;
use League\Fractal\Pagination\IlluminatePaginatorAdapter;
use League\Fractal\Resource\Collection as FractalCollection;
use League\Fractal\Resource\Item;

/**
 * Class GroupController.
 */
class ObjectGroupController extends Controller
{
    private ObjectGroupRepositoryInterface $repository;


    /**
     * ObjectGroupController constructor.
     *
     * @codeCoverageIgnore
     */
    public function __construct()
    {
        parent::__construct();
        $this->middleware(
            function ($request, $next) {
                /** @var User $user */
                $user             = auth()->user();
                $this->repository = app(ObjectGroupRepositoryInterface::class);
                $this->repository->setUser($user);

                return $next($request);
            }
        );
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param ObjectGroup $objectGroup
     *
     * @codeCoverageIgnore
     * @return JsonResponse
     */
    public function delete(ObjectGroup $objectGroup): JsonResponse
    {
        $this->repository->destroy($objectGroup);

        return response()->json([], 204);
    }

    /**
     * Display a listing of the resource.
     *
     * @param Request $request
     *
     * @codeCoverageIgnore
     * @return JsonResponse
     */
    public function index(Request $request): JsonResponse
    {
        $manager = $this->getManager();

        // types to get, page size:
        $pageSize = (int) app('preferences')->getForUser(auth()->user(), 'listPageSize', 50)->data;

        // get list of accounts. Count it and split it.
        $collection   = $this->repository->get();
        $count        = $collection->count();
        $objectGroups = $collection->slice(($this->parameters->get('page') - 1) * $pageSize, $pageSize);

        // make paginator:
        $paginator = new LengthAwarePaginator($objectGroups, $count, $pageSize, $this->parameters->get('page'));
        $paginator->setPath(route('api.v1.object-groups.index') . $this->buildParams());

        /** @var ObjectGroupTransformer $transformer */
        $transformer = app(ObjectGroupTransformer::class);
        $transformer->setParameters($this->parameters);

        $resource = new FractalCollection($objectGroups, $transformer, 'object_groups');
        $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));

        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
    }


    /**
     * List all piggies under the object group.
     *
     * @param ObjectGroup $objectGroup
     *
     * @return JsonResponse
     * @codeCoverageIgnore
     */
    public function piggyBanks(ObjectGroup $objectGroup): JsonResponse
    {
        // create some objects:
        $manager = $this->getManager();

        // types to get, page size:
        $pageSize = (int) app('preferences')->getForUser(auth()->user(), 'listPageSize', 50)->data;

        // get list of piggy banks. Count it and split it.
        $collection = $this->repository->getPiggyBanks($objectGroup);
        $count      = $collection->count();
        $piggyBanks = $collection->slice(($this->parameters->get('page') - 1) * $pageSize, $pageSize);

        // make paginator:
        $paginator = new LengthAwarePaginator($piggyBanks, $count, $pageSize, $this->parameters->get('page'));
        $paginator->setPath(route('api.v1.object-groups.piggy_banks', [$objectGroup->id]) . $this->buildParams());

        /** @var PiggyBankTransformer $transformer */
        $transformer = app(PiggyBankTransformer::class);
        $transformer->setParameters($this->parameters);

        $resource = new FractalCollection($piggyBanks, $transformer, 'piggy_banks');
        $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));

        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);

    }

    /**
     * Show single instance.
     *
     * @param ObjectGroup $objectGroup
     *
     * @return JsonResponse
     */
    public function show(ObjectGroup $objectGroup): JsonResponse
    {
        $manager = $this->getManager();

        /** @var ObjectGroupTransformer $transformer */
        $transformer = app(ObjectGroupTransformer::class);
        $transformer->setParameters($this->parameters);
        $resource = new Item($objectGroup, $transformer, 'object_groups');

        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
    }

    /**
     * Update object.
     *
     * @param ObjectGroupUpdateRequest $request
     * @param Account                  $account
     *
     * @return JsonResponse
     */
    public function update(ObjectGroupUpdateRequest $request, ObjectGroup $objectGroup): JsonResponse
    {
        $data = $request->getUpdateData();
        $this->repository->update($objectGroup, $data);
        $this->repository->sort();
        $manager = $this->getManager();

        /** @var ObjectGroupTransformer $transformer */
        $transformer = app(ObjectGroupTransformer::class);
        $transformer->setParameters($this->parameters);
        $resource = new Item($objectGroup, $transformer, 'object_groups');

        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
    }
}