<?php

namespace App\Http\Controllers\Api\Train;

use App\Admin\Services\Train\PaperService;
use App\Enums\ExamStatus;
use App\Exceptions\RuntimeException;
use App\Http\Controllers\Api\Controller;
use App\Http\Resources\TrainPaperResource;
use App\Models\Train\Paper;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

/**
 * 培训-考试
 */
class ExaminationController extends Controller
{
    public function index(Request $request)
    {
        $user = $this->guard()->user();
        $list = Paper::with(['examination'])
            ->where('employee_id', $user->id)
            ->whereHas('examination', fn ($q) => $q->where('exam_status', ExamStatus::Published))
            ->orderBy('created_at', 'desc')
            ->paginate($request->input('per_page'));

        return TrainPaperResource::collection($list);
    }

    public function show($id)
    {
        $user = $this->guard()->user();
        $info = Paper::with(['examination'])->where('employee_id', $user->id)->findOrFail($id);

        return TrainPaperResource::make($info);
    }

    public function answer($id, Request $request, PaperService $service)
    {
        $request->validate([
            'answers' => ['required', 'array'],
        ]);
        $user = $this->guard()->user();
        $info = Paper::with(['examination'])->where('employee_id', $user->id)->findOrFail($id);

        try {
            DB::beginTransaction();
            if (! $service->answer($info, $request->input('answers'))) {
                throw new RuntimeException($service->getError());
            }

            DB::commit();

            return TrainPaperResource::make($info);
        } catch (\Exception $e) {
            DB::rollBack();
            throw new RuntimeException($e->getMessage());
        }
    }
}