<?php

namespace App\Http\Controllers\Api\Course;

use App\Http\Controllers\Controller;
use App\Repositories\Enums\Course\VideoWatchEnum;
use App\Repositories\Enums\ModelStatusEnum;
use App\Repositories\Enums\ResponseCodeEnum;
use App\Repositories\Models\Course\Subscribe;
use App\Repositories\Models\Course\UserRecord;
use App\Repositories\Models\Course\Video;
use App\Repositories\Models\Course\WatchRecord;
use App\Services\Course\VideoService;
use Carbon\Carbon;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Jiannei\Response\Laravel\Support\Facades\Response;

/**
 * 视频管理
 *
 * @package namespace App\Http\Controllers;
 */
class VideoController extends Controller
{
    protected $service;

    public function __construct(VideoService $service)
    {
        parent::__construct();
        $this->service = $service;
    }

    /**
     * 视频详情
     * @param $id
     * @return \Illuminate\Http\JsonResponse|\Illuminate\Http\Resources\Json\JsonResource
     * Author: Mead
     */
    public function show(Request $request)
    {
        $this->validateData($request, [
            'id' => 'required|integer',
            'course_id' => 'required|integer',
        ], [
            'course_id' => '课程 id'
        ]);

        $id = $request->get('id');
        $video = $this->service->handleProfile($id);
        return $this->response->success($video);
    }


    /**
     * 视频记录
     * @param Request $request
     * @return \Illuminate\Http\JsonResponse|\Illuminate\Http\Resources\Json\JsonResource
     * @throws \Illuminate\Validation\ValidationException
     */
    public function lookRecord(Request $request)
    {
        $this->validateData($request, [
            'course_id' => 'required',
            'video_id' => 'required',
            'watch_seconds' => 'required',
//            'is_watched' => 'required',
        ]);

        $course_id = $request->get('course_id');
        $video_id = $request->get('video_id');
        $watch_seconds = $request->get('watch_seconds', 10);
//        $is_watched = $request->get('is_watched', VideoWatchEnum::NO);
        $is_watched = VideoWatchEnum::NO;

        DB::beginTransaction();

        try {
            $total_seconds = Video::query()->where('id', $video_id)->value('duration') ?? 0;
            if ($total_seconds <= 0) {
                return $this->response->ok('请求成功');
            }

            $progress = 0;
            $progress_index = 0;
            $sec = 10;
            $user_id = login_user_id();

            $progress_index = bcdiv($watch_seconds, $sec, 0);

//            $user_id = 10;
            //进度方式一
//            $progress = bcdiv($watch_seconds * 100, $total_seconds, 0);
//            if ($progress > 100) {
//                $progress = 100;
//                $watch_seconds = $total_seconds;
//            }


            //进度方式二
            $use_nums = WatchRecord::query()->where('video_id', $video_id)->where('user_id', $user_id)->distinct('progress_index')->count();
            $progress = bcdiv($use_nums * 100, $total_seconds / $sec, 0);

            if ($progress >= 98) {
                if ($sec) {
                    $total_nums = bcdiv($total_seconds, $sec, 0);
                    if ($total_nums - 3 > 0) {
                        if ($use_nums >= ($total_nums - 5)) {
                            $is_watched = VideoWatchEnum::OK;
                            $progress = 100;
                        }
                    } else {
                        $is_watched = VideoWatchEnum::OK;
                        $progress = 100;
                    }
                } else {
                    $is_watched = VideoWatchEnum::OK;
                    $progress = 100;
                }
            }

            if ($is_watched) {
                Video::query()->where('id', $video_id)->increment('view_num', 1);
            }

            WatchRecord::query()->updateOrCreate([
                'video_id' => $video_id,
                'course_id' => $course_id,
                'user_id' => $user_id,
                'progress_index' => $progress_index,
            ], [
                'is_watched' => $is_watched,
                'watch_seconds' => $watch_seconds,
                'watched_at' => Carbon::now(),
                'progress' => $progress,
                'progress_index' => $progress_index,
            ]);

            if ($is_watched == VideoWatchEnum::OK) {
                $use_complete_nums = WatchRecord::query()->where('course_id', $course_id)->where('is_watched', VideoWatchEnum::OK)->distinct('video_id')->count();
                $total_complete_nums = Video::query()->where('course_id', $course_id)->where('status', ModelStatusEnum::OK)->count();
                $total_progress = bcdiv($use_complete_nums * 100, $total_complete_nums, 0);
                if ($total_progress > 100) {
                    $total_progress = 100;
                }
                $is_watched = 0;
                if ($use_complete_nums == $total_complete_nums) {
                    $is_watched = 1;
                }

                Subscribe::query()
                    ->where('course_id', $course_id)
                    ->where('user_id', $user_id)
                    ->updateOrCreate([
                        'course_id' => $course_id,
                        'user_id' => $user_id,
                    ], [
                        'total_nums' => $total_complete_nums,
                        'use_nums' => $use_complete_nums,
                        'progress' => $total_progress,
                        'is_watched' => $is_watched,
                        'watched_at' => Carbon::now()->toDateTimeString()
                    ]);
            }
            DB::commit();
        } catch (\Exception $exception) {
            DB::rollBack();
            $this->exception($exception);
        }
        return $this->response->ok('请求成功');
    }

}