<?php namespace App\Http\Controllers\Api\Video;

use App\Http\Controllers\Api\Api;
use App\Models\Video\Course as Model;
use App\Models\Video\LearnRecord;
use App\Models\Video\CourseType;
use App\Models\Video\LearnQuestion;
use Illuminate\Support\Facades\DB;
use App\Models\Video\Answer as VideoAnswer;
use App\Models\Video\Question as VideoQuestion;
use App\Models\Video\ExamRecord;
/**
 * 课程
 *
 * @author    刘相欣
 *
 */
class Course extends Api{
	

	/**
	 * 获取课程列表		/api/video_course/get_list
	 * 
	 */
	public function get_list(Model $Model,LearnRecord $LearnRecord,CourseType $CourseType,ExamRecord $ExamRecord){
		// 检查登录
		$uid 						= $this->checkLogin();
		// 查询条件
		$map 						= [['status','=','0'],['start_time','<=',time()],['end_time','>=',time()]];
		// 查询课程数据
		$Paginator					= $Model->query()->where($map)->orderByDesc('id')->select(['id','name','type_id','thumb','end_time'])->paginate(request('limit',config('page_num',10)));
		// 获取用户学习记录
		$record 					= $LearnRecord->query()->where([['custom_uid','=',$uid]])->groupBy('course_id')->select(['course_id',DB::raw('max(`status`) as status')])->get()->toArray();
		// 获取报告
		$report						= $ExamRecord->query()->where([['custom_uid','=',$uid],['status','=',1]])->groupBy('course_id')->pluck('id','course_id')->toArray();
		// 记录列表
		$recordList 				= [];
		// 以课程重组课程状态
		foreach ($record as $key => $value) {
			// 重组
			$recordList[$value['course_id']] = $value['status'];
		}
		// 循环处理数据
		foreach ($Paginator as $key => $value) {
			// 类型名称
			$value['type_name'] 	= (string) $CourseType->getOne($value['type_id'],'name');
			// 如果没有缩略图，使用海报图
			$value['thumb']			= path_compat($value['thumb']);
			// 用户学习状态
			$value['learn_status']	= isset($recordList[$value['id']]) ? $recordList[$value['id']] : -1;
			// 学习报告
			$value['report_id']		= isset($report[$value['id']]) ? $report[$value['id']] : 0;
			// 结束时间
		    $value['end_time']   	= date('Y-m-d H:i',$value['end_time']);
			// 重组
			$Paginator[$key]		= $value;
		}
		// 获取数据
		$data['total']				= $Paginator->total();
		$data['current_page']		= $Paginator->currentPage();
		$data['per_page']			= $Paginator->perPage();
		$data['last_page']			= $Paginator->lastPage();
		$data['data']				= $Paginator->items();
		// 分配数据
		return						json_send(['code'=>'success','msg'=>'列表数据','data'=>$data]);
    }
	/**
	 * 课程详情		/api/video_course/get_detail
	 * 
	 * */
    public function get_detail(Model $Model,LearnRecord $LearnRecord,LearnQuestion $LearnQuestion,VideoQuestion $VideoQuestion,VideoAnswer $VideoAnswer){
		// 检查登录
		$uid 							= $this->checkLogin();
		// 接受参数
		$id								= request('id',0);
		// 用户是否点赞
		if( !$id )						return json_send(['code'=>'error','msg'=>'课程ID不能为空']);
		// 获取旧数据
        $courseData            			= $Model->query()->where([['status','=',0]])->find($id,['id','name','thumb','video_src','content','start_time','end_time','insert_time']);
		// 用户是否点赞
		if( !$courseData )				return json_send(['code'=>'error','msg'=>'课程不存在或者已下架']);
		// 转数组
		$courseData						= $courseData->toArray();
		// 用户是否点赞和推荐
		$courseData['thumb']			= $courseData['thumb'] ? path_compat($courseData['thumb']) : '';
		// 获取用户学习进度
		$courseData['inittime'] 		= 0;//(int)$LearnRecord->query()->where([['course_id','=',$id],['custom_uid','=',$uid],['status','=',0]])->orderByDesc('id')->value('video_lasttime');
		// 查询是不是有记录在使用中
		$oldRecordId			 		= $LearnRecord->query()->where([['custom_uid','=',$uid],['course_id','=',$id],['status','=',0]])->value('id');
		// 查询课程数据
		$questionList					= $LearnQuestion->getList($id);
		// 以时间排序
		$questionList					= array_sort($questionList,'play_time',SORT_ASC);
		// 获取数据
		foreach ($questionList as $key => $value) {
			# 获取习题数据
			$value['question_title']	= $VideoQuestion->getOne($value['question_id'],'title');
			// 如果没有题目选项，删除
			if( !$value['question_title'] ){
				// 如果没有题目选项，删除
				unset($questionList[$key]);
				continue;
			}
			$value['answer_list'] 		= $VideoAnswer->getListByQuestion($value['question_id']);
			$value['answer_list'] 		= array_values($value['answer_list']);
			// 如果没有题目选项，删除
			if( !$value['answer_list'] ){
				// 如果没有题目选项，删除
				unset($questionList[$key]);
				continue;
			}
			// 重组
			$questionList[$key]			= $value;
		}
		// 习题列表
		$courseData['question_list']	= array_values($questionList);
		// 学习状态
		$courseData['learn_status']		= (int)$LearnRecord->query()->where([['custom_uid','=',$uid],['course_id','=',$id]])->value(DB::raw('max(`status`) as status'));
		// 接收参数
		$data['custom_uid']				= $uid;
		$data['course_id']				= $id;
		$data['start_time']				= time();
		$data['video_inittime']			= $courseData['inittime'];
		$data['video_lasttime']			= $courseData['inittime'];
		$data['question_total']			= count($questionList);
		// 新增记录
		$courseData['record_id']		= $oldRecordId ? $LearnRecord->edit($oldRecordId,$data) : $LearnRecord->add($data);
		// 如果记录失败
		if( !$courseData['record_id'] )	return json_send(['code'=>'error','msg'=>'获取详情失败，请重试']);
		// 返回结果
		return							json_send(['code'=>'success','msg'=>'获取成功','data'=>$courseData]);
	}

}