<?php
namespace app\api\logic;

use think\Exception;
use think\facade\Db;
use app\common\enum\RefundEnum;
use app\common\logic\BaseLogic;
use app\common\logic\RefundLogic;
use app\common\model\goods\Goods;
use app\common\model\equity\UserEquity;
use app\common\model\refund\RefundRecord;
use app\common\model\equity\UserEquityLog;
use app\common\model\service_area\ServiceArea;
use app\common\model\group_activity\GroupOrder;
use app\common\model\group_activity\GroupActivity;
use app\common\model\group_activity\GroupUserOrder;


/**
 * 拼团活动逻辑处理
 * Class GroupActivityLogic
 * @package app\api\logic
 */
class GroupActivityLogic extends BaseLogic
{

    /**
     * @notes 拼团活动详情
     */
    public static function detail($id,$userId){
        $detail = GroupActivity::with('goods')->where(['id'=>$id])->visible([
            'id','title','image','start_time','end_time','type','equity_id',
            'participant_num','origin_price','price','form_time_limit'
        ])->findOrEmpty()->toArray();

        if(!empty($detail)){
            $detail['price'] = explode(",",$detail['price']);
            $detail['participant_num'] = explode(",",$detail['participant_num']);
            $detail['timestamp'] = time();
            $goods = Goods::where('id',$detail['goods']['goods_id'])->field('service_image,goods_category_id')->findOrEmpty()->toArray();
            $detail['goods'] = array_merge($detail['goods'],$goods);
            //查询用户是否已有付款订单
            $detail['order'] = GroupUserOrder::with('group_order')->where(['user_id'=>$userId,'group_activity_id'=>$detail['id'],'pay_status'=>1])->field('id,status,pay_way,pay_time,pay_status,remark,create_time,group_order_id')->findOrEmpty()->toArray();
        }

        return $detail;
    }

    /**
     * @notes 拼团订单详情
     */
    public static function orderDetail($sn){
        $detail = GroupOrder::where(['sn'=>$sn])->findOrEmpty()->toArray();
        if(!empty($detail)){
           
            $detail['activity'] = GroupActivity::with('goods')->where(['id'=>$detail['group_activity_id']])->visible([
                'id','title','image','start_time','end_time','type','equity_id',
                'participant_num','origin_price','price','form_time_limit'
            ])->findOrEmpty()->toArray();
            $detail['users'] = GroupUserOrder::alias('a')
                                ->leftJoin('user b','a.user_id=b.id')
                                ->where(['a.sn'=>$sn,'a.status'=>1])
                                ->field(['a.id','a.user_id','a.status','a.create_time','b.avatar','b.nickname'])
                                ->order('a.create_time','asc')
                                ->select()
                                ->toArray();
        }
        return $detail;
    }

    /**
     * @notes 用户订单详情
     */
    public static function userOrderDetail($sn,$userId){
        $detail = GroupUserOrder::where(['sn'=>$sn, 'user_id' => $userId])->findOrEmpty()->toArray();
        
        return $detail;
    }

    /**
     * 提交订单
     * @param array $params
     * @return array|false
     */
    public static function submitOrder($params)
    {
        Db::startTrans();
        try {
            
            $is_join = GroupUserOrder::where('pay_status',1)->where('refund_status',0)->where(['group_activity_id' => $params['group_activity_id'], 'user_id' => $params['user_id']])->value('id');
            if ($is_join) {
                throw new Exception('您已参加过该活动！');
            }

            //校验拼团活动
            if (empty($params['sn'])) {
                //新开团
                $activity = GroupActivity::findOrEmpty($params['group_activity_id']); //活动详情
                if ($activity->isEmpty()) {
                    throw new Exception('拼团活动不存在！'); //拼团活动不存在
                }
                //校验活动时间
                if (time() < strtotime($activity['start_time'])) {
                    throw new Exception('拼团活动未开始！'); //拼团活动未开始
                }
                if (time() > strtotime($activity['end_time'])) {
                    throw new Exception('拼团活动已结束！'); //拼团活动已结束
                }
                    
                $order_amount = explode(",",$activity['price'])[0];
                //生成拼团单
                $data = [
                    'sn' => generate_sn(GroupOrder::class, 'sn'),
                    'group_activity_id' => $params['group_activity_id'],
                    'goods_id' => $activity['goods_id'],
                    'user_id' => $params['user_id'],
                    'origin_price' => $activity['origin_price'],
                    'price' => $order_amount,
                    'create_time' => time(),
                    'end_time'   => time() + $activity['form_time_limit'] * 60 * 60,
                ];
                $group_order = GroupOrder::create($data);
            } else {
                //加入已开的拼团单
                $group_order = GroupOrder::where(['group_activity_id' => $params['group_activity_id'], 'sn' => $params['sn']])->findOrEmpty()->toArray();
                if (empty($group_order)) {
                    throw new Exception('拼团订单不存在！'); //拼团活动不存在
                }
                if ($group_order['num'] >= 100) {
                    throw new Exception('拼团人数已满！'); //拼团人数已满
                }
                if ($group_order['status'] == 1 ) {
                    throw new Exception('活动已成团');
                }
                if ($group_order['status'] >= 1 ) {
                    throw new Exception('拼团已取消！');
                }
                if (strtotime($group_order['end_time']) < time()) {
                    throw new Exception('拼团活动已结束！'); //拼团活动已结束
                }
                $order_amount = $group_order['price'];
            }

            //生成用户拼单订单
            $data = [
                'sn' => $group_order['sn'],
                'group_order_id' => $group_order['id'],
                'group_activity_id' => $params['group_activity_id'],
                'user_id' => $params['user_id'],
                'remark' => $params['remark'],
                'order_amount' => $order_amount,
                'order_terminal' => $params['terminal'],
            ];
            $group_user_order = GroupUserOrder::create($data);

            Db::commit();
        } catch (\Exception $e) {
            Db::rollback();
            self::setError($e->getMessage());
            return false;
        }

        return [
            'order_id' => (int)$group_user_order['id'],
            'sn' => $group_order['sn']
        ];
    }

    /**
     * 取消订单
     * @param $params
     * @return false|void
     */
    public static function cancelOrder($params)
    {
        Db::startTrans();
        try {
            $detail =  GroupUserOrder::where([
                    'user_id' => $params['user_id'],
                    'sn'=>$params['sn']
                ])->field('id,status')->findOrEmpty()->toArray();
            if(empty($detail)){
                throw new Exception('订单不存在');
            }
            if($detail['status'] == 1){
                throw new Exception('已支付订单不支持取消');
            }
            if($detail['status'] != 0){
                throw new Exception('当前订单不支持取消');
            }

            //将用户订单状态更新为已取消
            GroupUserOrder::where('id',$detail['id'])->update(['status' => 4, 'pay_status' => 2]);
            
            Db::commit();
            return true;
        }
        catch (\Exception $e) {
            Db::rollback();
            self::setError($e->getMessage());
            return false;
        }
    }

    /**
     * 订单退款
     * @param $params
     * @return false|void
     */
    public static function refundOrder($params)
    {
        Db::startTrans();
        try {
            $order =  GroupUserOrder::where([
                    'user_id' => $params['user_id'],
                    'sn'=>$params['sn']
                ])->field('id,sn,status,order_amount,pay_status,pay_way,user_equity_id,user_id,order_terminal')->findOrEmpty()->toArray();
            if(empty($order)){
                throw new Exception('订单不存在');
            }
            if($order['status'] != 1 || $order['pay_status'] != 1){
                throw new Exception('当前订单不支持退款');
            }
            if ($order['user_equity_id']) {
                //判断权益卡是否已使用
                $used = UserEquityLog::where(['user_equity_id' => $order['user_equity_id'],'user_id' => $params['user_id']])->count();
                if ($used) {
                    throw new Exception('当前权益卡已使用，不支持退款');
                }
                //删除用户权益卡
                $userEquity = UserEquity::where(['id' => $order['user_equity_id'],'user_id' => $params['user_id']])->findOrEmpty();
                $userEquity->delete();
            }

            //将用户订单状态更新为申请退款
            GroupUserOrder::where('id',$order['id'])->update(['status' => 3,'refund_status' => 1]);

            // 生成退款记录
            $recordSn = generate_sn(RefundRecord::class, 'sn');
            $record = RefundRecord::create([
                'sn' => $recordSn,
                'user_id' => $order['user_id'],
                'order_id' => $order['id'],
                'order_sn' => $order['sn'],
                'order_type' => RefundEnum::ORDER_TYPE_GROUP,
                'order_amount' => $order['order_amount'],
                'refund_amount' => $order['order_amount'],
                'refund_type' => RefundEnum::TYPE_ADMIN,
                'transaction_id' => $order['transaction_id'] ?? '',
                'refund_way' => RefundEnum::getRefundWayByPayWay($order['pay_way']),
            ]);

            // 退款
            $result = RefundLogic::refund($order, $record['id'], $order['order_amount'], 1);
            
            $flag = true;
            $resultMsg = '退款成功';
            if ($result !== true) {
                $flag = false;
                $resultMsg = RefundLogic::getError();
            }

            Db::commit();
            return [$flag, $resultMsg];
        }
        catch (\Exception $e) {
            Db::rollback();
            self::$error = $e->getMessage();
            return [false, $e->getMessage()];
        }
    }

    public static function deleteOrder($params):bool
    {
        try{
            $order =  GroupUserOrder::where([
                'user_id' => $params['user_id'],
                'sn' => $params['sn']
            ])->findOrEmpty();
            if($order->isEmpty()){
                throw new \Exception('订单不存在');
            }

            if($order['status'] == 1){
                throw new Exception('已支付订单不支持删除');
            }

            $order->delete();
            return true;
        } catch(\Exception $e){
            self::setError($e->getMessage());
            return false;
        }
    }
}