<?php
// +----------------------------------------------------------------------
// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2017~2021 https://www.yiovo.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
// +----------------------------------------------------------------------
// | Author: 萤火科技 <admin@yiovo.com>
// +----------------------------------------------------------------------
declare (strict_types=1);

namespace app\api\model;

use app\api\service\User as UserService;
use app\common\enum\order\PayStatus as PayStatusEnum;
use app\common\exception\BaseException;
use app\common\model\UserCoupon as UserCouponModel;
use app\common\enum\coupon\ExpireType as ExpireTypeEnum;
use app\common\enum\coupon\ApplyRange as ApplyRangeEnum;
use app\common\library\helper; 
use app\api\model\Coupon;
use app\common\model\CouponGood as CouponGoodModel;
use app\common\model\UserCouponGoods as UserCouponGoodsModel;
use app\api\model\User as UserModel;
use app\api\model\Order as OrderModel;
use think\facade\Db;

/**
 * 用户优惠券模型
 * Class UserCoupon
 * @package app\api\model
 */
class UserCoupon extends UserCouponModel
{
    public function getUserCouponRdsKey($user_id){
        $key = 'receive:send_type:20:user_id:'.$user_id;
        return $key;
    }
    /**
     * 获取用户优惠券列表
     * @param int $userId
     * @param array $param
     * @return \think\Paginator
     * @throws \think\db\exception\DbException
     */
    public function getList(int $userId, array $param)
    {
        $filter = $this->getFilter($param);
        return $this->where($filter)
            ->where('user_id', '=', $userId)
            ->order(['coupon_type'=>'asc','reduce_price'=>'desc','discount'=>'asc','expire_time'=>'asc'])
            ->paginate(30);
    }

    /**
     * 检索查询条件
     * @param array $param
     * @return array|mixed
     */
    private function getFilter(array $param = [])
    {
        // 设置默认查询参数
        $params = $this->setQueryDefaultValue($param, [
            'dataType' => 'all',     // all:全部 isUsable:可用的 isExpire:已过期 isUse:已使用
            'amount' => null,        // 订单消费金额
        ]);
        // 检索列表类型
        $filter = [];
        // 可用的优惠券
        if ($params['dataType'] === 'isUsable') {
            $filter[] = ['is_use', '=', 0];
            $filter[] = ['start_time', '<=', date('Y-m-d H:i:s')];
            $filter[] = ['expire_time', '>', date('Y-m-d H:i:s')];
        }
        // 已过期的优惠券
        if ($params['dataType'] === 'isExpire') {
            $filter[] = ['is_use', '=', 0];
            $filter[] = ['expire_time', '<', date('Y-m-d H:i:s')];
        }
        // 已使用的优惠券
        if ($params['dataType'] === 'isUse') {
            $filter[] = ['is_use', '=', 1];
        }
        // 订单消费金额
        $params['amount'] > 0 && $filter[] = ['min_price', '<=', $params['amount']];
        return $filter;
    }

    /**
     * 获取用户优惠券总数量(可用)
     * @param int $userId
     * @return int
     */
    public function getCount(int $userId)
    {
        return $this->where('user_id', '=', $userId)
            ->where('is_use', '=', 0)
            ->where('start_time', '<=', date('Y-m-d H:i:s'))
            ->where('expire_time', '>', date('Y-m-d H:i:s'))
            ->count();
    }

    /**
     * 获取用户优惠券ID集
     * @param $userId
     * @return array
     */
    public function getUserCouponIds(int $userId)
    {
        return $this->where('user_id', '=', $userId)->column('coupon_id');
    }

    //获取指定用户指定优惠券
    public function getUserCouponByCouponId(int $userId,array $couponIdArray){
        return $this->where('user_id', '=', $userId)->where('coupon_id','in',$couponIdArray)->select();
    }

    /**
     * 获取用户优惠券ID集
     * @param $userId
     * @return array
     */
    public function getTodayUserCouponIds(int $userId)
    {
        $today = strtotime(date("Y-m-d"),time());
        $today_end = $today + 86400;
        return $this->where('user_id', '=', $userId)->where('create_time','>',$today)->where('create_time','<',$today_end)->column('coupon_id');
    }

    //查某优惠券用户领了几张
    public function getUserCouponCount(int $userId,int $coupon_id){
         return $this->where('user_id', '=', $userId)->where('coupon_id',$coupon_id)->count();
    }

    /**
     * 领取优惠券
     * @param int $couponId 优惠券ID
     * @return bool
     * @throws BaseException
     */
    public function receive(int $couponId,bool $exchange = false,$needUserCouponId =false)
    {

        // 当前用户信息
        $userInfo = UserService::getCurrentLoginUser(true);
        // 获取优惠券信息
        $coupon = Coupon::where("coupon_id",$couponId)->lock('for update')->find();
//        dd($coupon);
        // $coupon = Coupon::detail($couponId);
        // 验证优惠券是否可领取
        if (!$this->checkReceive($userInfo, $coupon,$exchange)) {
            
            return false;
        }
        // 添加领取记录
        return $this->add($userInfo, $coupon,$needUserCouponId);
    }

     /**
     * 领取优惠券
     * @param int $couponId 优惠券ID
     * @return bool
     * @throws BaseException
     */
    public function userreceive(int $couponId,int $user_id,bool $exchange = false)
    {

        // 用户信息
        $userInfo = UserModel::where('user_id',$user_id)->find();
        // 获取优惠券信息
        $coupon = Coupon::where("coupon_id",$couponId)->lock('for update')->find();
        // $coupon = Coupon::detail($couponId);
        // 验证优惠券是否可领取
        if (!$this->checkReceive($userInfo, $coupon,$exchange)) {
            log_record("receive fail:coupon_id".$couponId.",error:".$this->error,'error');
            return false;
        }
        log_record("userreceive:coupon_id",'error');
        // 添加领取记录
        return $this->add($userInfo, $coupon);
    }


    /**
     * 领取优惠券
     * @param  $coupon 优惠券信息
     * @param  $userInfo 用户信息
     * @return bool
     * @throws BaseException
     */
    public function receiveLogin($coupon, $userInfo)
    {

        // 当前用户信息
//        $userInfo = UserService::getCurrentLoginUser(true);
        // 获取优惠券信息
//        $coupon = Coupon::detail($couponId);
        // 验证优惠券是否可领取
        if (!$this->checkReceive($userInfo, $coupon)) {
            return false;
        }
        // 添加领取记录
        return $this->add($userInfo, $coupon);
    }

    /**
     * 添加领取记录
     * @param $user
     * @param Coupon $coupon
     * @param bool $needUserCouponId
     * @return bool
     */
    private function add($user, Coupon $coupon,$needUserCouponId =false)
    {
        // 计算有效期
        if ($coupon['expire_type'] == 10) {
           
            if($coupon['expire_day']>1){
                $d = $coupon['expire_day'] -1;
                $expire_time = date('Y-m-d',strtotime('+'.$d.' day')). ' 23:59:59' ;
            }else{
                $expire_time = date("Y-m-d",time()).' 23:59:59';
            }

        } else {
            $expire_time = $coupon['expire_time'];
        }
        $startTime = $coupon['start_time'];
        $endTime = $coupon['end_time'];
        // 整理领取记录
        $data = [
            'coupon_id' => $coupon['coupon_id'],
            'name' => $coupon['name'],
            'coupon_type' => $coupon['coupon_type'],
            'reduce_price' => $coupon['reduce_price'],
            'discount' => $coupon['discount'],
            'min_price' => $coupon['min_price'],
            'expire_type' => $coupon['expire_type'],
            'expire_day' => $coupon['expire_day'],
            'start_time' => $startTime,
            'end_time' => $endTime,
            'apply_range' => $coupon['apply_range'],
            'apply_range_config' => $coupon['apply_range_config'],
            'user_id' => $user['user_id'],
            'store_id' => self::$storeId?:10001,
            'subtitle'=>$coupon['subtitle'],
            'describe'=>$coupon['describe'],
            'expire_time'=>$expire_time,
            'discount_type'=>$coupon['discount_type'],
            'max_discount_price'=>$coupon['max_discount_price'],
            'overlay_discount'=>implode(',', $coupon['overlay_discount']),
        ];
        $coupon_id = $coupon['coupon_id'];
        // 事务处理
        return $this->transaction(function () use ($data,$coupon_id,$needUserCouponId) {
            // 添加领取记录
            $coupon = Coupon::where("coupon_id",$coupon_id)->find();
            
            $status = $this->save($data);
            log_record("save data:".json_encode($data));
            if ($status) {
                // 更新优惠券领取数量
                $coupon->setIncReceiveNum();
            }

            $goodList = CouponGoodModel::where('coupon_id',
                $coupon_id)->select();
            $now = Date("Y-m-d H:i:s",time());
            foreach($goodList as $row){
                $gdata['user_coupon_id'] = $this->user_coupon_id;
                $gdata['goods_id'] = $row->goods_id;
                $gdata['image_id'] = $row->image_id;
                $gdata['goods_sku_id'] = $row->goods_sku_id;
                $gdata['goods_sku_no'] = $row->goods_sku_no;
                $gdata['goods_name'] = $row->goods_name;
                $gdata['goods_props'] = isset($row->goods_props)?json_encode($row->goods_props):'';
                $gdata['goods_price'] = $row->goods_price;
                $gdata['goods_num'] = $row->goods_num;
                $gdata['total_price'] = $row->total_price;
                $gdata['is_except'] = $row->is_except;
                $gdata['create_time'] = $now;
                $gdata['update_time'] = $now;
                $ugood = new UserCouponGoodsModel;
                $ugood->save($gdata);
            }
            log_record("transaction finish data:".$coupon_id);
            if ($needUserCouponId === true){
                return $this->user_coupon_id;
            }
            return $status;
        });

        //return false;
    }


    /**
     * 验证优惠券是否可领取
     * @param mixed $userInfo 当前登录用户信息
     * @param Coupon $coupon 优惠券详情
     * @return bool
     */
    private function checkReceive($userInfo, Coupon $coupon,bool $exchange = false)
    {
        if (!$coupon) {
            $this->error = '优惠券不存在';
            return false;
        }

        //生日礼券每年只能领取一张
        if ($coupon['coupon_type'] == Coupon::MEMBER_BIRTH_COUPON){
            //检查是否用户生日月份
            $birthMonth = $userInfo['birthday']?substr($userInfo['birthday'],5,2):0;
            if (intval($birthMonth) != intval(date('m'))){
                $this->error ='请在生日当月领取使用~';
                return false;
            }

           if (UserCoupon::where(['user_id'=>$userInfo['user_id'],'coupon_id'=>$coupon['coupon_id']])->whereYear('create_time')->find())
           {
               $this->error ='今年已经领过了哟';
               return false;
           }
        }
        //会员专享券每月只能领取一张
        if ($coupon['coupon_type'] == Coupon::MEMBER_COUPON){
            if (UserCoupon::where(['user_id'=>$userInfo['user_id'],'coupon_id'=>$coupon['coupon_id']])->whereMonth('create_time')->find())
            {
                $this->error ='这个月领过了哟';
                return false;
            }
        }

        if($coupon['limit_total_type']==10&&$coupon['avaiable_num']<=0){
            $this->error ='领完啦，下次再来';
            return false;
        }
        if(!$exchange){
            if(Date("Y-m-d H:i:s",time())>$coupon['end_time']){
                $this->error = '优惠券已失效!';
                return false;
            }
            if(Date("Y-m-d H:i:s",time())<$coupon['start_time']){
                $this->error = '优惠券已失效!!';
                return false;
            }
            if($coupon['status']==0||$coupon['is_delete']==1||$coupon['audit_status']!=10){
                $this->error = '优惠券已失效';
                return false;
            }
            //属于限时券
            if($coupon['is_limit_hour']==1){
                $coupon['start_hour'] = str_pad($coupon['start_hour'],2,"0",STR_PAD_LEFT);
                $coupon['end_hour'] = str_pad($coupon['end_hour'],2,"0",STR_PAD_LEFT);
                $today_start = Date("Y-m-d",time())." ".$coupon['start_hour'].":00:00";
                $today_end = Date("Y-m-d",time())." ".$coupon['end_hour'].":00:00";
                $now = Date("Y-m-d H:i:s",time());

                if(!($now>$today_start&&$now<$today_end)){
                    $this->error = '限时券不在领取的时间段';
                    return false;
                }
            }

        }else{
            if(Date("Y-m-d H:i:s",time())>$coupon['end_time']){
                $this->error = '兑换码已失效!';
                return false;
            }
            if(Date("Y-m-d H:i:s",time())<$coupon['start_time']){
                $this->error = '兑换码已失效!!';
                return false;
            }
            if($coupon['status']==0||$coupon['is_delete']==1||$coupon['audit_status']!=10){
                $this->error = '兑换码已失效';
                return false;
            }
        }
       
        // if (!$coupon->checkReceive()) {
        //     $this->error = $coupon->getError();
        //     return false;
        // }
        // 验证是否已领取

        if($coupon['limit_receive_type']==10){
            $userCouponIds = $this->getUserCouponIds($userInfo['user_id']);
            if (in_array($coupon['coupon_id'], $userCouponIds)) {
                if($coupon->limit_receive_cnt==1){
                    $this->error = '您已经领过了噢~';
                    return false;
                }
                $count = $this->getUserCouponCount($userInfo['user_id'],$coupon['coupon_id']);
                if($count>=$coupon->limit_receive_cnt){
                    $this->error = '您已经领过了噢~';
                    return false;
                }
            }
        }

        if($coupon['limit_receive_type']==20){
            $userCouponIds = $this->getTodayUserCouponIds($userInfo['user_id']);
            $ac = array_count_values($userCouponIds);
            if(isset($ac[$coupon['coupon_id']])&&$ac[$coupon['coupon_id']]>=$coupon['limit_receive_cnt']){
                $this->error = '优惠券领取已达到当天限额';
                return false;
            }
        }
        return true;
    }

    /**
     * 订单结算可用优惠券列表
     * @param int $userId 用户id
     * @param float $goodsList 订单商品列表
     * @param array $orderGoodsIds 订单商品ID集合
     * @return array|mixed
     * @throws \think\db\exception\DbException
     */
    public static function getUserCouponList(int $userId, $goodsList, array $orderGoodsIds)
    {
        // 获取用户可用的优惠券列表
        $list = (new static)->getList($userId, ['dataType' => 'isUsable']);
        $data = [];
        foreach ($list as $coupon) {
            // 有效期范围内
            if ($coupon['start_time'] > date('Y-m-d H:i:s')) continue;
            $isOrderCount = OrderModel::where(['pay_status'=>PayStatusEnum::SUCCESS,'user_id'=>$userId])->count();
            //如果是首单折扣券，并且当前用户已经下过单了
            if($coupon['coupon_type']==50 && $coupon['discount_type']==1 && $isOrderCount>0){
                continue;
            }

            $exceptGoodsId = helper::getArrayColumn($coupon['userCouponGoodsExcept'],'goods_id');
//            $excludedGoodsIds = array_intersect($exceptGoodsId, $orderGoodsIds);
//            if(count($excludedGoodsIds)>0) continue;
            //zq220128此代码为了解决购物车中只要有一款商品可以用券就显示此劵，但是会导致不能用券的商品也分摊了优惠券金额，看后面优化
            $diffGoodsIds = array_diff($orderGoodsIds,$exceptGoodsId);
            if (count($diffGoodsIds) == 0)continue;
            $amount = 0;//计算可用商品优惠券的金额
            $newGoods = [];//计算可用商品优惠券的商品ID集合
            foreach ($goodsList as $good){
                if(in_array($good['goods_id'],$diffGoodsIds)){
                    if($good['is_activity_discount']==0 || stripos($good['activity_discount_overlay'],'1') !== false){
                        $newGoods[] = $good['goods_id'];
                        $amount += ($good['total_price']-$good['activity_discount_total_price']??0);
                    }
                    $amount -= $good['member_total_money']??0;//有会员优惠就减会员优惠
                }
            }
            if($amount<=0) continue;//如果没有满减金额就取消
            //满减金额不达标
            if($coupon['min_price']>$amount) continue;
            //end-----
            $key = $coupon['user_coupon_id'];
            $data[$key] = [
                'user_coupon_id' => $coupon['user_coupon_id'],
                'name' => $coupon['name'],
                'subtitle' => $coupon['subtitle'],
                'describe' => $coupon['describe'],
                'coupon_type' => $coupon['coupon_type'],
                'reduce_price' => $coupon['reduce_price'],
                'discount' => $coupon['discount'],
                'min_price' => $coupon['min_price'],
                'expire_type' => $coupon['expire_type'],
                'start_time' => $coupon['start_time'],
                'end_time' => $coupon['end_time'],
                'expire_time' => $coupon['expire_time'],
                'apply_range' => $coupon['apply_range'],
                'apply_range_config' => $coupon['apply_range_config'],
                'except_goods_id' => $exceptGoodsId,
                'max_discount_price' => $coupon['max_discount_price'],
                'first_order_discount' => $coupon['first_order_discount'],
                'overlay_discount' => $coupon['overlay_discount'],
                'discount_type' => $coupon['discount_type'],
                'new_good_ids' => $newGoods,
            ];
            // 计算打折金额
            if ($coupon['coupon_type'] == 50) {
                $reducePrice = helper::bcmul($amount, 1-($coupon['discount'] / 100));
                //如果设置了最大的优惠金额并且当前优惠的金额大于设置的金额
                if($coupon['max_discount_price']>0 && $coupon['max_discount_price']<$reducePrice){
                    $reducePrice = $coupon['max_discount_price'];
                }
                $data[$key]['reduced_price'] = $reducePrice;
            } else
                $data[$key]['reduced_price'] = $coupon['reduce_price'];
        }
        // 根据折扣金额排序并返回
        return array_sort($data, 'reduced_price', true);
    }

    /**
     * 判断当前优惠券是否满足订单使用条件
     * @param $couponList
     * @param array $orderGoodsIds 订单商品ID集
     * @return mixed
     */
    public static function couponListApplyRange(array $couponList, array $orderGoodsIds)
    {
        // 名词解释(is_apply)：允许用于抵扣当前订单
        foreach ($couponList as &$item) {
            if ($item['apply_range'] == ApplyRangeEnum::ALL) {
                // 1. 全部商品
                $item['is_apply'] = true;
            } elseif ($item['apply_range'] == ApplyRangeEnum::SOME) {
                // 2. 指定商品, 判断订单商品是否存在可用
                $applyGoodsIds = array_intersect($item['apply_range_config']['applyGoodsIds'], $orderGoodsIds);
                $item['is_apply'] = !empty($applyGoodsIds);
            } elseif ($item['apply_range'] == ApplyRangeEnum::EXCLUDE) {
                // 2. 排除商品, 判断订单商品是否全部都在排除行列
                $excludedGoodsIds = array_intersect($item['apply_range_config']['excludedGoodsIds'], $orderGoodsIds);
                $item['is_apply'] = count($excludedGoodsIds) != count($orderGoodsIds);
            }
            !$item['is_apply'] && $item['not_apply_info'] = '该优惠券不支持当前商品';
        }
        return $couponList;
    }

    /**
     * 获取用户可用优惠券列表
     * @param int $userId
     * @param array $param
     * @return \think\Paginator
     * @throws \think\db\exception\DbException
     */
    public function getUserCouponLists(int $userId,$sum_total_price)
    {
        $params['dataType'] = 'isUsable';//
        $filter = $this->getFilter($params);
        $list = $this->with(['userCouponGoodsExcept'])
            ->where($filter)
            ->where('user_id', '=', $userId)
            ->where('min_price', '<=', $sum_total_price)
            ->order('reduce_price','desc')
            ->select();
        return $list;
    }

    /**
     * 获取今天是否领过该券
     * @param $userId
     * @param $couponId
     * @return UserCoupon|array|\think\Model|null
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function getUserCouponId($userId,$couponId){
        return self::where('user_id',$userId)->where('coupon_id',$couponId)
            ->field('user_coupon_id')
            ->whereYear('create_time','this year')
            ->find();
            //->column('user_coupon_id');
    }


    public static function showDetail($userCouponId){
        return   self::where('user_coupon_id',$userCouponId)
            ->field('user_coupon_id,coupon_id,name,reduce_price,min_price,expire_time')->find();

    }
}