<?php

namespace app\admin\controller;

use app\common\controller\Backend;
use think\Db;
use app\common\library\Email;
/**
 * 售课预约订单
 *
 * @icon fa fa-circle-o
 */
class Lessonorder extends Backend
{

    /**
     * Lessonorder模型对象
     * @var \app\admin\model\Lessonorder
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\Lessonorder;
        $this->view->assign("orderStatusList", $this->model->getOrderStatusList());
        $this->view->assign("paytypeList", $this->model->getPaytypeList());
    }



    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */


    /**
     * 查看
     */
    public function index()
    {
        //当前是否为关联查询
        $this->relationSearch = true;
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if ($this->request->isAjax()) {
            //拿slot_id
            $filter = $this->request->get('filter');
            $filter = json_decode($filter,true);
            $slot_id = isset($filter['slot_id']) ? $filter['slot_id'] : 0;

            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();

            $list = $this->model
                    ->with(['user','slot','lesson','coach'])
                    ->where($where)
                    ->where('lessonorder.order_status !=0 or lessonorder.jointype = 2') //已支付的 或 候补单
                    ->order($sort, $order)
                    ->paginate($limit);

            foreach ($list as $row) {
                
                $row->getRelation('user')->visible(['firstname','lastname']);
				$row->getRelation('slot')->visible(['starttime','endtime']);
				$row->getRelation('lesson')->visible(['name','name_en','type']);
				$row->getRelation('coach')->visible(['nickname']);
            }

            $result = array("total" => $list->total(), "rows" => $list->items(), "extend"=>[ 'slot_id' => $slot_id ]);

            return json($result);
        }

        $is_back = input('is_back',0);
        $this->assign('is_back',$is_back);

        return $this->view->fetch();
    }

    /**
     * 取消
     */
    public function cancel(){
        $id = input('id');
        $info = Db::name('lesson_order')->where('id',$id)->find();
        if(!$info){
            $this->error('请刷新重试');
        }

        if($this->request->isPost()){
            $cancel_reason = input('cancel_reason','');
            $cancel_time   = strtotime(input('cancel_time',''));

            Db::startTrans();

            //找到所有的已报名订单
            $info = Db::name('lesson_order')->where('id',$id)->lock(true)->find();
            if(empty($info)){
                Db::rollback();
                $this->error('请刷新重试');
            }

            //取消候补单
            if($info['jointype'] == 2){

                $update = [
                    'order_status' => 30,
                    'cancel_time' => $cancel_time,
                    'cancel_reason' => $cancel_reason,
                ];

                $rs = Db::name('lesson_order')->where('id',$id)->update($update);
                Db::commit();
                $this->success('取消完成');

            }

            //剩下的都是预约单
            if($info['order_status'] != 10){
                Db::rollback();
                $this->error('此订单已无法取消，请刷新重试');
            }

            //套餐给加回去
            if($info['paytype'] == 1){
                $package_order = Db::name('package_order')->where('id',$info['package_order_id'])->lock(true)->find();
                $update = [
                    'remain' => bcadd($package_order['remain'],$info['usernumber_hours'],1),
                    'updatetime' => time(),
                ];
                $rs_remain = Db::name('package_order')->where('id',$info['package_order_id'])->update($update);
                if($rs_remain === false){
                    Db::rollback();
                    $this->error('取消失败');
                }
            }
            //试课给改回去
            if($info['paytype'] == 4){
                $update = [
                    'order_status' => 10,
                    'updatetime' => time(),
                    'lesson_order_id' => 0,
                ];
                $rs_remain = Db::name('trylesson_order')->where('id',$info['trylesson_order_id'])->update($update);
                if($rs_remain === false){
                    Db::rollback();
                    $this->error('取消失败');
                }
            }

            //现金支付不给退，线下处理

            //取消预约单
            $update2 = [
                'order_status' => 30,
                'cancel_time' => $cancel_time,
                'cancel_reason' => $cancel_reason,
            ];
            if($info['paytype'] == 1 || $info['paytype'] == 4){
                $update2['order_status'] = 40;
            }


            $rs = Db::name('lesson_order')->where('id',$info['id'])->update($update2);
            if($rs === false){
                Db::rollback();
                $this->error('取消失败');
            }

            //候补上位
            $slot = Db::name('lesson_slot')->where('id',$info['slot_id'])->find();
            $wait_rs = $this->lesson_order_wait($info,$slot);

            //更新已预约人数
            $pay_number = Db::name('lesson_order')->where('slot_id',$info['slot_id'])->where('order_status',10)->sum('usernumber');
            $rs_slot = Db::name('lesson_slot')->where('id',$info['slot_id'])->update(['bookednum' => $pay_number]);
            if($rs_slot === false){
                Db::rollback();
                $this->error('取消失败');
            }

            Db::commit();

            $slot_info = $slot;
            $lesson_info = Db::name('lesson')->where('id',$slot_info['lesson_id'])->find();

            //给用户发通知
            $user_info = Db::name('user')->where('id',$info['user_id'])->find();
            if(!empty($user_info['email'])){

                try {
                    $obj = new Email();
                    $result = $obj
                        ->to($user_info['email'])
                        ->subject('Class is Cancelled!')
                        ->message('Hi,'.$user_info['firstname']. ' ' .$user_info['lastname'].',您预约的'.$lesson_info['name'].'已取消')
                        ->send();

                    $coach_name = Db::name('coach')->where('id',$slot_info['coach_ids'])->value('nickname');

                    //发whatsapp
                    $parameters = [
                        [
                            'type' => 'text',
                            'text' => $user_info['firstname'].' '.$user_info['lastname'],
                        ],
                        [
                            'type' => 'text',
                            'text' => $lesson_info['name_en'],
                        ],
                        [
                            'type' => 'text',
                            'text' => $coach_name,
                        ],
                        [
                            'type' => 'text',
                            'text' => date('Y-m-d H:i',$slot_info['starttime']),
                        ],
                    ];
                    $this->whatapp($user_info['whatsapp'],'class_cancelled','en_US',$parameters);

                } catch (Exception $e) {

                }
            }


            $this->success('取消完成');

        }

        $this->view->assign('row',$info);
        return $this->view->fetch();
    }

    //候补上位
    private function lesson_order_wait($lesson_order,$slot){
        //找到所有的候补单
        $houbu_list = Db::name('lesson_order')->alias('order')
            ->field('order.*,user.firstname,user.lastname,user.email,user.whatsapp,lesson.name_en')
            ->join('user','order.user_id = user.id','LEFT')
            ->join('lesson','order.lesson_id = lesson.id','LEFT')
            ->where('order.slot_id',$lesson_order['slot_id'])->where('order.jointype',2)->where('order.order_status',0)->order('order.id asc')->select();

        //有多少个空位
        $pay_number = Db::name('lesson_order')->where('slot_id',$lesson_order['slot_id'])->where('order.jointype',1)->where('order_status',10)->sum('usernumber');
        $num_remain = $slot['num_max'] - $pay_number;

        $coach_name = Db::name('coach')->where('id',$slot['coach_ids'])->value('nickname');

        if(!empty($houbu_list)){

            $up_usernumber = 0; //此次循环转正的人数

            foreach($houbu_list as $key => $order){
                if($order['usernumber'] + $up_usernumber <= $num_remain){
                    //此订单可以转正

                    //检查可用的套餐，找一个就可以
                    $map = [
                        'user_id' => $order['user_id'],

                        'endtime' => ['gt',time()],
                        'remain' => ['gt',$order['usernumber_hours']],
                        'order_status' => 1,
                        'use_status'   => 1, //已激活的
                        'id' => $order['package_order_id'],
                    ];
                    $package_order = Db::name('package_order')->where($map)->where('find_in_set(:lesson_ids,lesson_ids)', ['lesson_ids' => $slot['lesson_id']])->lock(true)->find();
                    if(!$package_order){
                        continue;
                    }

                    //扣除一节。
                    $update = [
                        'remain'     => bcsub($package_order['remain'],$order['usernumber_hours'],1),
                        'updatetime' => time(),
                    ];
                    $rs1 = Db::name('package_order')->where('id',$package_order['id'])->update($update);
                    if($rs1 === false){
                        Db::rollback();
//                        $this->error('扣除套餐余额失败');
                        $this->error('取消失败');
                    }

                    //修改预约单数据。延迟到转正的时候处理
                    $update_order['order_amount'] = 0;
                    $update_order['order_status'] = 10;
                    $update_order['paytime'] = time();
                    $update_order['package_order_id'] = $package_order['id'];

                    $update_order['package_remark'] = ($package_order['sessions'] - $package_order['remain']) . '-' . ($package_order['sessions'] - $package_order['remain'] + $order['usernumber_hours']) .'/'. $package_order['sessions'];
                    $update_order['paytype']  = 1; //修改支付方式为配套
                    $update_order['jointype'] = 1; //修改加入方式为预约

                    $rs2 = Db::name('lesson_order')->where('id',$order['id'])->update($update_order);
                    if($rs2 === false){
                        Db::rollback();
//                        $this->error('扣除套餐余额失败');
                        $this->error('取消失败');

                    }

                    //加上本次转正的人数
                    $up_usernumber += $order['usernumber'];

                    //额外的通知
                    $obj = new Email();
                    try {
                        //给这些用户发邮件
                        $result = $obj
                            ->to($order['email'])
                            ->subject('Elin Dance Studio 您候补预订的课程已转为正式预约')
                            ->message('Hi,'.$order['firstname']. ' ' .$order['lastname'].',您候补预定的课程['.$order['name_en'].']即时起已转为正式预约，时间:'.date('Y-m-d H:i',$slot['starttime']).'，请及时来上课!')
                            ->send();

                        //发whatsapp
                        $parameters = [
                            [
                                'type' => 'text',
                                'text' => $order['firstname'].' '.$order['lastname'],
                            ],
                            [
                                'type' => 'text',
                                'text' => $order['name_en'],
                            ],
                            [
                                'type' => 'text',
                                'text' => $coach_name,
                            ],
                            [
                                'type' => 'text',
                                'text' => date('Y-m-d H:i',$slot['starttime']),
                            ],
                        ];
                        $this->whatapp($order['whatsapp'],'lessonorder_alternate_to_booking','en_US',$parameters);

                    } catch (Exception $e) {

                    }
                    //额外的通知
                }else{
                    continue;//跳出
                }
            }
        }
        return true;
    }

    //发送whatapp消息的方法
    private function whatapp($receive_mobile,$template,$code,$parameters){
        if(empty($receive_mobile)){return true;}

        $token = config('site.whatsapp_token');

        //发送者
        $mobile_id = '337736419413019'; //Elin Dance Stuido 2:+65 8015 4154  ,  WhatsApp Business Account ID: 336509229537586

        //发送
        $url = 'https://graph.facebook.com/v19.0/'.$mobile_id.'/messages';
        $header = [
            'Authorization: Bearer ' . $token,
            'Content-Type: application/json',
        ];
        $body = [
            'messaging_product' => 'whatsapp',
            'recipient_type' => 'individual',
            'to' => $receive_mobile,
            'type' => 'template',
            'template' => [
                'name' => $template,
                'language' => [
                    'code' => $code
                ],
                'components' => [
                    [
                        'type' => 'body',
                        'parameters' => $parameters
                    ]

                ],
            ],
        ];
        $body = json_encode($body);

        $rs = curl_post($url,$body,$header);
        return true;
    }



}