<?php

namespace App\Services\Exam;

use App\Contracts\Repositories\Exam\PaperRepository;
use App\Repositories\Criteria\Exam\PaperCriteria;
use App\Repositories\Eloquent\Exam\PaperRepositoryEloquent;
use App\Repositories\Enums\ResponseCodeEnum;
use App\Repositories\Models\Exam\Bank;
use App\Repositories\Models\Exam\Paper;
use App\Repositories\Presenters\Exam\PaperPresenter;
use Illuminate\Http\Request;

class PaperService
{
    /**
     * @var PaperRepositoryEloquent
     */
    private $paperRepository;

    /**
     * PaperService constructor.
     *
     * @param PaperRepositoryEloquent $paperRepositoryEloquent
     */
    public function __construct(PaperRepositoryEloquent $paperRepositoryEloquent)
    {
        $this->paperRepository = $paperRepositoryEloquent;
    }

    /**
     * @param Request $request
     *
     * @return mixed
     * @throws \Prettus\Repository\Exceptions\RepositoryException
     */
    public function handleList(Request $request)
    {
        $this->paperRepository->pushCriteria(new PaperCriteria($request));
        $this->paperRepository->setPresenter(PaperPresenter::class);

        return $this->paperRepository->searchPapersByPage();
    }

    /**
     * @param $id
     *
     * @return \Illuminate\Database\Eloquent\Model
     */
    public function handleProfile($id)
    {
        $this->paperRepository->setPresenter(PaperPresenter::class);
        return $this->paperRepository->searchPaperBy($id);
    }

    /**
     * @param array $data
     *
     * @return mixed
     * @throws \Prettus\Validator\Exceptions\ValidatorException
     */
    public function handleStore($data)
    {
        self::defaultPoint($data);
        $paper = $this->paperRepository->create($data);
//        if (array_key_exists('banks', $data)) {
//            $paper->banks()->sync($data['banks']);
//        }
        return $paper;
    }

    /**
     * @param array $data
     *
     * @return mixed
     * @throws \Prettus\Validator\Exceptions\ValidatorException
     */
    public function handleUpdate($data)
    {
        self::defaultPoint($data);

        $paper = $this->paperRepository->update($data, $data['id']);
//        if (array_key_exists('banks', $data)) {
//            $paper->banks()->sync($data['banks']);
//        }
        return $paper;
    }

    public static function defaultPoint(&$data)
    {
        if (!array_key_exists('banks', $data)) {
            return false;
        }
        if (!is_array($data['banks'])) {
            return false;
        }
        $banks = $data['banks'];
        $banks = Bank::query()->whereIn('id', $banks)->get();
        $nums = count($banks);
        $da = [];
        if ($nums) {
            $p = bcdiv(100, $nums, 2);
            foreach ($banks as $bank) {
                $bankArr = $bank->toArray();
                $bankArr['point'] = $p;
                $da[] = $bankArr;
            }
            $data['banks'] = $da;
        }
        return true;
    }

    /**
     * @param Request $request
     *
     * @return mixed
     * @throws \Prettus\Validator\Exceptions\ValidatorException
     */
    public function handleDelete($id)
    {
        return $this->paperRepository->delete($id);
    }

    public function handleUpdateGrades($data)
    {
        $model = Paper::query()->where('id', $data['id'])->first();
        if (!$model) abort(ResponseCodeEnum::SERVICE_OPERATION_ERROR, '找不到该记录');
        $model->models()->sync($data['grades']);
        return true;
    }

    public function handleUpdateBanks($data)
    {
        $model = Paper::query()->where('id', $data['id'])->first();
        if (!$model) abort(ResponseCodeEnum::SERVICE_OPERATION_ERROR, '找不到该记录');

        self::defaultPoint($data);
        $model->banks = $data['banks'];
        $model->save();
        return true;
    }
}