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

use App\Http\Controllers\Api\Api;
use App\Models\Course as Model;
use App\Models\Orders as Orders;
use App\Models\Product;
use App\Models\Product\Skus as ProductSkus;
use App\Http\Requests\Api\Course as Request;
use App\Models\Business;
use App\Models\CustomAddr;
use App\Models\OrdersProduct;
use App\Models\CourseSchedule;
use App\Models\CourseReservation;
use Illuminate\Support\Facades\DB;

/**
 * 课程接口
 * 
 * @author jun
 * 
 * */
class Course extends Api{

	/**
	 * 预约课程					 	/api/course/reservation
	 *
	 * @param	string	$car_info		需要下单的产品ID
	 * @param	string	$buyer_number	需要下单的数量
	 *
	 * */
	public function reservation(Request $request,Model $Model,OrdersProduct $OrdersProduct,CourseSchedule $CourseSchedule,CourseReservation $CourseReservation){
		// 接口验签
		// $this->verify_sign();
		// 验证参数
		$request->scene('reservation')->validate();
		// 检查登录
		$uid							= $this->checkLogin();
		// 接收参数
		$scheduleId					    = (int)request('schedule_id','');
		$courseId					    = (int)request('course_id','');
        //订单课程预约信息
        $ordersProductInfo              = $OrdersProduct->query()
            ->whereColumn('course_number','>','reservation_number')
            ->where([['course_id','=',$courseId],['custom_uid','=',$uid],['status','=',2]])
            ->first();
        if (!$ordersProductInfo)
            return json_send(['code'=>'error','msg'=>'您还没购买课程','data'=>['error'=>'您还没购买课程']]);
        if ($ordersProductInfo['course_number'] <= $ordersProductInfo['reservation_number'])
            return json_send(['code'=>'error','msg'=>'您购买的课程节数已用完','data'=>['error'=>'您购买的课程节数已用完']]);
        $ordersProductId				= (int)$ordersProductInfo['id'];
        //上课表信息
        $courseScheduleInfo             = $CourseSchedule->query()->where('id','=',$scheduleId)->first();
        if (!$courseScheduleInfo)
            return json_send(['code'=>'error','msg'=>'预约课程不存在','data'=>['error'=>'预约课程不存在']]);
        if ($courseScheduleInfo['course_number'] <= $ordersProductInfo['reservation_number'])
            return json_send(['code'=>'error','msg'=>'此时段课程已预满','data'=>['error'=>'此时段课程已预满']]);
        if ($courseScheduleInfo['start_time'] <= time())
            return json_send(['code'=>'error','msg'=>'已过上课时间','data'=>['error'=>'已过上课时间']]);
        $data = [
            'orders_product_id'         =>  $ordersProductId,
            'schedule_id'               =>  $scheduleId,
            'uid'                       =>  $uid,
            'order_id'                  =>  $ordersProductInfo['order_id'],
            'product_id'                =>  $ordersProductInfo['product_id'],
            'course_id'                 =>  $courseScheduleInfo['course_id'],
            'teacher_id'                =>  $courseScheduleInfo['teacher_id'],
            'start_time'                =>  $courseScheduleInfo['start_time'],
            'end_time'                  =>  $courseScheduleInfo['start_time'],
        ];
        DB::beginTransaction();
        // 写入数据
        try {
            // 更新订单预约数据
            $update =  $OrdersProduct->query()->where('id','=',$ordersProductInfo['id'])->increment('reservation_number');
            if (!$update)
                // 返回结果
                return						json_send(['code'=>'error','msg'=>'预约失败','data'=>['id'=>$ordersProductId,'error'=>'更新订单预约数据']]);
            // 更新课程表预约数据
            $updateSchedule =  $CourseSchedule->query()->where('id','=',$scheduleId)->update(['reservation_number'=>$courseScheduleInfo['reservation_number']+1]);
            if (!$updateSchedule){
                DB::rollBack();
                // 错误提示
                return 				json_send(['code'=>'error','msg'=>'预约失败','data'=>['error'=>'更新课程表预约数据失败']]);
            }
            //添加到预约课程表
            $reservationId		        =   $CourseReservation->add($data);
            if( !$reservationId )			{
                // 回退数据
                DB::rollBack();
                // 错误提示
                return 				json_send(['code'=>'error','msg'=>'预约失败','data'=>['error'=>'添加预约失败']]);
            }
            // 提交数据
            DB::commit();
            // 返回结果
            return						json_send(['code'=>'success','msg'=>'预约成功','data'=>['id'=>$reservationId]]);
            // 返回结果
        } catch (\Throwable $th) {
            // 回退数据
            DB::rollBack();
            // 判断结果，如果库存扣减失败的话
            if( stripos($th->getMessage(),'UNSIGNED') )  return json_send(['code'=>'error','msg'=>'预约失败','data'=>['error'=>'订单课程修改错误']]);
            // 下单失败提示
            return						json_send(['code'=>'error','msg'=>'预约失败','data'=>['error'=>$th->getMessage().$th->getLine()]]);
        }

	}


	/**
	 * 获取上课列表		 /api/course/get_list
	 *
	 * @param	int		$page			页码,默认1
	 * @param	int		$limit			每页条数,默认10条
	 * 
	 * */
	public function get_list(Request $request,Model $Model,OrdersProduct $OrdersProduct,Orders $orders){
		// 接口验签
		// $this->verify_sign();
        // 验证参数
		$request->scene('get_list')->validate();
		// 检查登录
		$uid						= $this->checkLogin();
		// 接收参数
		$status						= request('status',0);
		$limit						= request('limit',10);
		// 显示
		//$map[]						= ['orders.custom_uid','=',$uid];
        $map = [];
		// 查询状态
		if( $status )				$map[] = ['course.status','=',$status];
		// 查询订单课程
//		$Paginator					= $orders->query()
//            ->join('orders_product','orders_product.order_id','=','orders.id')
//            ->join('course','orders_product.course_id','=','course.id')
//            ->where($map)
//            ->whereColumn('orders_product.reservation_number','<','orders_product.course_number')
//            ->orderByDesc('orders_product.id')
//            ->paginate($limit, $select);
        $Paginator					= $Model->query()
            ->select('course.*', DB::raw('count(kailin_course_reservation.id) as course_reservation_number'))
            ->leftJoin('course_reservation','course.id','=','course_reservation.course_id')
            ->where($map)
            ->groupBy('course.id')
            ->paginate($limit);
        foreach ($Paginator->items() as &$orders_product) {
            $orders_product['image']	= path_compat($orders_product['image']);
        }
		// 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']				= $Paginator->items();
		// 返回结果
		return						json_send(['code'=>'success','msg'=>'获取成功','data'=>$data]);
	}
    /**
     * 获取排课列表	 /api/course/get_schedule_list
     *
     * */
    public function get_schedule_list(Request $request,Model $Model,CourseSchedule $CourseSchedule){
        // 接口验签
        // $this->verify_sign();
        // 验证参数
        $request->scene('get_schedule_list')->validate();
        // 检查登录
        $uid						= $this->checkLogin();
        // 接收参数
        $status						= request('status',0);
        $limit						= request('limit',10);
        $courseId					= request('course_id',10);
        $ordersProductId			= request('orders_product_id',10);
        // 显示一周的数据
        $start                      = strtotime(date('Y-m-d'));
        $end     = strtotime(date('Y-m-d', strtotime('+7 day')),);
        $map						= [
            ['course_schedule.course_id','=',$courseId],
            ['course_schedule.start_time','>',$start],
            ['course_schedule.end_time','<',$end],
        ];
        // 查询状态
        $map[] = ['course_schedule.status','=',$status];
        $select = [
            'course_schedule.id',
            'course_schedule.course_id',
            'course_schedule.teacher_id',
            'course_schedule.start_time',
            'course_schedule.end_time',
            'course_schedule.duration',
            'course_schedule.course_number',
            'course_schedule.reservation_number',
            'course_teacher.name as teacher_name',
            'course_teacher.desc as teacher_desc',
            'course.name as course_name',
            'course.image as course_image',
            'course.desc as course_desc',
            'course.address',
        ];
        // 查询订单课程
        $data				= $CourseSchedule->query()
            ->join('course','course_schedule.course_id','=','course.id')
            ->join('course_teacher','course_schedule.teacher_id','=','course_teacher.id')
            ->where($map)
            ->orderBy('course_schedule.start_time')
            ->select($select)
            ->get();
        //用户已预约课程
        $courseReservation = CourseReservation::query()->where(['uid'=>$uid,'status'=>1])->select('schedule_id')->get()->toArray();
        $reservationIds = array_column($courseReservation,'schedule_id');
        $list = [];
        foreach ($data as &$dataItem) {
            $dataItem['course_image']	        = path_compat($dataItem['course_image']);
            //按老师分组
            $list[$dataItem['teacher_id']]['teacher_id']	= $dataItem['teacher_id'];
            $list[$dataItem['teacher_id']]['teacher_name']	= $dataItem['teacher_name'];
            //判断排课是否已预约：1预约，0未预约
            if (in_array($dataItem['id'],$reservationIds)) {
                $dataItem['reservation_status']	= 1;
            }else{
                $dataItem['reservation_status']	= 0;
            }
            $list[$dataItem['teacher_id']]['list'][]	= $dataItem;
        }
        $list = array_values($list);
        // 返回结果
        return						json_send(['code'=>'success','msg'=>'获取成功','data'=>$list]);
    }
    /**
     * 预约列表					 	/api/course/reservation_list
     *
     * @param int $page 页码,默认1
     * @param int $limit 每页条数,默认10条
     *
     * */
    public function reservation_list(Request $request,Model $Model,OrdersProduct $OrdersProduct,CourseSchedule $CourseSchedule,CourseReservation $CourseReservation){
        // 接口验签
        // $this->verify_sign();
        // 验证参数
        $request->scene('reservation_list')->validate();
        // 检查登录
        $uid						= $this->checkLogin();
        // 接收参数
        $status						= request('status',0);
        $limit						= request('limit',10);
        $map						= [
            ['course_reservation.uid','=',$uid],
        ];
        // 查询状态
        if( $status )				$map[] = ['course_reservation.status','=',$status];

        $select                     =   [
            'course_reservation.*',
            'course_teacher.name as teacher_name',
            'course_teacher.desc as teacher_desc',
            'course_teacher.pic as teacher_pic',
            'course.name as course_name',
            'course.address as course_address',
        ];
        $Paginator					= $CourseReservation->query()
            ->join('course','course_reservation.course_id','=','course.id')
            ->join('course_teacher','course_reservation.teacher_id','=','course_teacher.id')
            ->where($map)
            ->orderByDesc('course_reservation.id')
            ->paginate($limit, $select);
        $time = time();
        foreach ($Paginator->items() as &$reservation) {
            $reservation['teacher_pic']	= path_compat($reservation['teacher_pic']);
            switch ($reservation['status']){
                case 1:
                    $reservation['status_name'] = '待上课';
                    break;
                case 2:
                    $reservation['status_name'] = '已取消';
                    break;
                case 3:
                    $reservation['status_name'] = '已完成';
                    break;
            }
        }
        // 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']				= $Paginator->items();
        // 返回结果
        return						json_send(['code'=>'success','msg'=>'获取成功','data'=>$data]);
    }
    /**
     * 取消预约					 	/api/course/cancel_reservation
     *
     * @param int $page 页码,默认1
     * @param int $limit 每页条数,默认10条
     *
     * */
    public function cancel_reservation(Request $request,Model $Model,OrdersProduct $OrdersProduct,CourseSchedule $CourseSchedule,CourseReservation $CourseReservation){
        // 接口验签
        // $this->verify_sign();
        // 验证参数
        $request->scene('cancel_reservation')->validate();
        // 检查登录
        $uid							= $this->checkLogin();
        // 接收参数
        $ordersProductId				= request('orders_product_id','');
        $scheduleId					    = request('schedule_id','');
        $id					            = request('id','');
        //订单课程预约信息
        $time = time();
        $ordersProductInfo              = $OrdersProduct->query()->where('id','=',$ordersProductId)->first();
        if (!$ordersProductInfo)
            return json_send(['code'=>'error','msg'=>'订单课程不存在','data'=>['error'=>'订单课程不存在']]);
        //上课表信息
        $courseScheduleInfo             = $CourseSchedule->query()->where('id','=',$scheduleId)->first();
        if (!$courseScheduleInfo)
            return json_send(['code'=>'error','msg'=>'预约课程不存在','data'=>['error'=>'预约课程不存在']]);
        if ($courseScheduleInfo['start_time'] <= $time)
            return json_send(['code'=>'error','msg'=>'已过上课时间','data'=>['error'=>'已过上课时间']]);

        DB::beginTransaction();
        // 写入数据
        try {
            // 更新订单预约数据
            $update =  $OrdersProduct->query()->where('id','=',$ordersProductId)->update(['reservation_number'=>$ordersProductInfo['reservation_number']-1]);
            if (!$update)
                // 返回结果
                return						json_send(['code'=>'success','msg'=>'取消预约失败','data'=>['id'=>null]]);
            //添加到预约课程表
            // 更新订单预约数据
            $updateReservation =  $CourseReservation->query()->where('id','=',$id)->update(['status'=>2]);
            if (!$updateReservation)
                // 返回结果
                return						json_send(['code'=>'success','msg'=>'取消预约失败','data'=>['id'=>null]]);
            if( !$updateReservation )			{
                // 回退数据
                DB::rollBack();
                // 错误提示
                return 				json_send(['code'=>'error','msg'=>'取消预约失败','data'=>['error'=>'取消预约失败']]);
            }
            // 提交数据
            DB::commit();
            // 返回结果
            return						json_send(['code'=>'success','msg'=>'取消预约成功','data'=>['id'=>$updateReservation]]);
            // 返回结果
        } catch (\Throwable $th) {
            // 回退数据
            DB::rollBack();
            // 判断结果，如果库存扣减失败的话
            if( stripos($th->getMessage(),'UNSIGNED') )  return json_send(['code'=>'error','msg'=>'取消预约失败','data'=>['error'=>'订单课程修改错误']]);
            // 下单失败提示
            return						json_send(['code'=>'error','msg'=>'取消预约失败','data'=>['error'=>$th->getMessage().$th->getLine()]]);
        }

    }
}