churen/app/shop/src/Buy.php

<?php

namespace Shop\Src;

use Dever;
use Main\Lib\Core;

class Buy extends Core
{
    public function __construct()
    {
        parent::__construct();
        $this->checkLogin();
        $this->shop_id = Dever::input('shop_id');

        if (!$this->shop_id) {
            Dever::alert('请选择门店');
        }

        $this->shop = Dever::db('shop/info')->getOne($this->shop_id);

        if (!$this->shop) {
            Dever::alert('门店不存在');
        }
    }

    # 分享
    public function share()
    {
        $act_id = Dever::input('act_id', 1);
        $path = Dever::input('path');
        $this->data = Dever::load('shop/lib/share')->up($this->uid, $this->shop_id, $act_id, $path);

        return $this->data;
    }

    # 获取店铺的优惠券
    public function getCoupon()
    {
        $this->data['coupon'] = Dever::load('shop/lib/coupon')->getAll($this->shop_id);

        $this->data['shop'] = $this->shop;

        $act_id = Dever::input('act_id', 1);

        $this->data['act'] = Dever::db('act/info')->find($act_id);

        return $this->data;
    }

    # 领取优惠券 也得判断一下用户是否有权限领取
    public function takeCoupon()
    {
        # 验证这个券是否可以领取
        $shop_coupon_id = Dever::input('shop_coupon_id');
        $coupon = explode(',', $shop_coupon_id);

        $this->data['take'] = array();
        foreach ($coupon as $k => $v) {
            $this->data['take']['shop_coupon_id'] = $v;
            $this->data['take']['status'] = Dever::load('shop/lib/coupon')->getOne($this->uid, $this->shop, $v);
        }

        return $this->data;
    }

    # 获取商品详细信息
    public function getGoodsInfo()
    {
        $id = Dever::input('goods_id');
        if (!$id) {
            Dever::alert('错误的商品');
        }

        $this->data['goods'] = Dever::load('shop/lib/info')->getGoodsInfo($this->shop_id, $id);

        //$this->data['shop'] = $this->shop;

        return $this->data;
    }

    # 获取购物车的数据
    public function getCart()
    {
        $where['uid'] = $this->uid;
        $where['shop_id'] = $this->shop_id;

        $this->data['cart'] = Dever::db('shop/cart')->select($where);

        if ($this->data['cart']) {
            foreach ($this->data['cart'] as $k => $v) {
                $this->data['cart'][$k]['goods'] = Dever::load('goods/lib/info')->getPayInfo($v['goods_id'], $v['sku_id']);

                if (isset($this->data['cart'][$k]['goods']['sku_id'])) {
                    $this->data['cart'][$k]['price_id'] = $this->data['cart'][$k]['goods']['sku_id'];
                }
            }
        }

        return $this->data['cart'];
    }

    # 加入到购物车
    public function addCart()
    {
        $where['uid'] = $this->uid;
        $where['shop_id'] = $this->shop_id;
        $where['goods_id'] = Dever::input('goods_id');
        $where['sku_id'] = Dever::input('price_id');
        if (!$where['goods_id']) {
            Dever::alert('错误的商品');
        }

        $info = Dever::db('shop/cart')->find($where);

        $where['num'] = Dever::input('num');
        if (!$info) {
            # 验证库存
            Dever::load('shop/lib/info')->checkTotal($where['num'], $where['goods_id'], $this->shop_id, $where['sku_id'], 2);
            $state = Dever::db('shop/cart')->insert($where);
        } else {
            $where['num'] += $info['num'];
            # 验证库存
            Dever::load('shop/lib/info')->checkTotal($where['num'], $where['goods_id'], $this->shop_id, $where['sku_id'], 2);
            $where['where_id'] = $info['id'];
            $state = Dever::db('shop/cart')->update($where);
        }

        return $this->getCart();
    }

    # 清空购物车
    public function dropCart()
    {
        $where['uid'] = $this->uid;
        $where['shop_id'] = $this->shop_id;

        $state = Dever::db('shop/cart')->delete($where);

        return $this->alert($state);
    }

    # 更新购物车数量
    public function upCart()
    {
        $where['uid'] = $this->uid;
        $where['shop_id'] = $this->shop_id;
        $where['id'] = Dever::input('cart_id');

        $status = Dever::input('status', 1);
        $type = Dever::input('type', 1);
        $num = Dever::input('num');

        $info = Dever::db('shop/cart')->find($where);

        $state = false;

        if ($info) {
            if ($type == 1) {
                $num = $info['num'] + $num;
            } else {
                $num = $info['num'] - $num;
            }
            $where = array();
            $where['where_id'] = $info['id'];
            if ($num <= 0) {
                $state = Dever::db('shop/cart')->delete($where);
            } else {
                $where['status'] = $status;
                $where['num'] = $num;
                
                # 验证库存
                $total = Dever::load('shop/lib/info')->checkTotal($num, $info['goods_id'], $this->shop_id, $info['sku_id']);

                if ($where['num'] > $total) {
                    # 库存不足
                    $where['num'] = $total;
                    $state = Dever::db('shop/cart')->update($where); 
                    return array('cart' => 2, 'data' => $total);
                }
                $state = Dever::db('shop/cart')->update($where); 
            }
        }

        return array('cart' => 1, 'data' => $this->getCart());
    }

    # 确认订单页面
    public function confirm()
    {
        $this->data['user'] = $this->user;
        $this->goods();
        $this->coupon($this->data['price'], $this->data['method']);

        return $this->data;
    }

    # 优惠券
    public function coupon($price, $method, $type = 1)
    {
        if ($price <= 0) {
            Dever::alert('付款价格错误');
        }

        $user_coupon_id = Dever::input('user_coupon_id');

        $this->data['user_coupon_id'] = 0;
        $this->data['coupon_id'] = 0;
        $this->data['coupon_cash'] = 0;

        if ($type == 1) {
            # 查找符合要求的优惠券
            $coupon = Dever::db('shop/user_coupon')->getAll(array('uid' => $this->uid, 'city' => $this->shop['city'], 'status' => 1, 'edate' => time()));

            if ($coupon) {
                foreach ($coupon as $k => $v) {
                    if ($v['shop_id'] != $this->shop_id) {
                        # 查找该券是否符合当前店铺
                        if ($this->shop['coupon_city'] == 2) {
                            continue;
                        }
                    }
                    $coupon_info = Dever::db('goods/coupon')->find($v['coupon_id']);
                    if ($coupon_info && ($coupon_info['method'] == $method || $coupon_info['method'] == 3)) {
                        $kou = false;
                        if ($coupon_info['type'] == 1) {
                            # 满减券
                            if ($price >= $coupon_info['total_cash']) {
                                $kou = true;
                            }
                        } else {
                            $kou = true;
                        }

                        if ($kou) {
                            $coupon_info['user_coupon_id'] = $v['id'];
                            $coupon_info['uid'] = $v['uid'];
                            $coupon_info['shop_id'] = $v['shop_id'];
                            $coupon_info['edate'] = date('Y-m-d', $v['edate']);
                            $this->data['coupon'][] = $coupon_info;

                            if (!$user_coupon_id && $this->data['coupon_cash'] <= $coupon_info['cash']) {
                                $this->data['user_coupon_id'] = $v['id'];
                                $this->data['coupon_id'] = $coupon_info['id'];
                                $this->data['coupon_cash'] = $coupon_info['cash'];
                            }
                        }
                    }
                }
            }
        }

        if ($user_coupon_id) {
            $coupon = Dever::db('shop/user_coupon')->find(array('uid' => $this->uid, 'id' => $user_coupon_id, 'status' => 1));
            if (!$coupon) {
                Dever::alert('优惠券不可用');
            }
            if (time() > $coupon['edate']) {
                Dever::db('shop/user_coupon')->update(array('where_id' => $user_coupon_id, 'status' => 3));
                Dever::alert('优惠券已过期');
            }

            if ($coupon['shop_id'] != $this->shop_id) {
                if ($this->shop['coupon_city'] == 2) {
                    Dever::alert('优惠券不可用');
                } else {
                    $coupon_info = Dever::db('shop/coupon')->find(array('shop_id' => $coupon['shop_id'], 'coupon_id' => $coupon['coupon_id'], 'city' => $coupon['city']));
                    if (!$coupon_info) {
                        Dever::alert('优惠券不可用');
                    }
                }
            }

            $goods_coupon = Dever::db('goods/coupon')->find($coupon['coupon_id']);
            if ($goods_coupon['type'] == 2 && $this->data['price'] < $goods_coupon['total_cash']) {
                Dever::alert('优惠券不可用');
            }
            if ($goods_coupon['method'] != $method && $goods_coupon['method'] != 3) {
                Dever::alert('优惠券不可用');
            }

            $this->data['user_coupon_id'] = $user_coupon_id;
            $this->data['coupon_id'] = $goods_coupon['id'];
            $this->data['coupon_cash'] = $goods_coupon['cash'];
        }

        if (isset($this->data['coupon_cash']) && $this->data['coupon_cash'] > 0) {
            $this->data['price'] -= $this->data['coupon_cash'];
            if ($this->data['price'] < 0) {
                $this->data['price'] = 0;
            }
        }
    }

    # 得到商品和总价
    private function goods()
    {
        # 1自提，2配送
        $this->data['method'] = Dever::input('method', 1);
        $this->data['pay_method'] = Dever::input('pay_method');
        $card = Dever::input('card');
        $pwd = Dever::input('pwd');

        if ($this->data['pay_method'] == 3 && $card && $pwd) {
            $this->data['card'] = Dever::load('goods/card_code')->find(array('card' => $card, 'pwd' => $pwd, 'status' => 1));
            if (!$this->data['card']) {
                Dever::alert('卡号/密码错误');
            }
            $goods = Dever::array_decode($this->data['card']['goods']);

            $goods_id = array();
            $num = array();
            $sku_id = array();
            foreach ($goods as $k => $v) {
                $goods_id[] = $v['goods_id'];
                $num[] = $v['num'];
            }
        } else {
            $goods_id = Dever::input('goods_id');
            if (!$goods_id) {
                Dever::alert('请传入商品');
            }
            $goods_id = explode(',', $goods_id);

            $sku_id = Dever::input('price_id');
            if ($sku_id) {
                $sku_id = explode(',', $sku_id);
            }
            
            $num = Dever::input('num');
            $num = explode(',', $num);
        }

        $this->data['price'] = 0;
        $this->data['num'] = 0;
        $this->data['name'] = '';
        $count = count($goods_id);
        # 计算总价格
        foreach ($goods_id as $k => $v) {
            $s = isset($sku_id[$k]) ? $sku_id[$k] : 0;
            $n = isset($num[$k]) ? $num[$k] : 1;
            $this->data['list'][$k] = Dever::load('goods/lib/info')->getPayInfo($v, $s, $n);

            # 2是库存不足
            $this->data['list'][$k]['ku_state'] = 1;

            # 验证是否有货
            $total = Dever::load('shop/lib/info')->checkTotal($n, $v, $this->shop_id, $s);

            if ($total <= 0) {
                $this->data['list'][$k]['ku_state'] = 2;
            }

            if ($this->data['list'][$k]['ku_state'] == 1) {
                $this->data['list'][$k]['buy_num'] = $n;
                $this->data['num'] += $n;
                $this->data['price'] += $this->data['list'][$k]['price'] * $n;
                if (!$this->data['name']) {
                    if ($count > 1) {
                        $this->data['name'] = $this->data['list'][$k]['name'] . '等' . $count . '种商品';
                    } else {
                        $this->data['name'] = $this->data['list'][$k]['name'];
                    }
                }
            }
        }
    }

    # 开始下单
    public function pay()
    {
        $refer = Dever::input('refer');
        $cart = Dever::input('cart', 1);
        $parent_uid = Dever::input('parent_uid');
        $address_id = Dever::input('address_id');
        $invoice_id = Dever::input('invoice_id');
        
        $info = Dever::input('info');

        $this->goods();
        $this->coupon($this->data['price'], $this->data['method'], 2);

        if (!$this->data['coupon_id'] && $this->data['price'] <= 0) {
            Dever::alert('已售空');
        }

        if ($this->data['method'] == 2 && !$address_id) {
            Dever::alert('收货地址不能为空');
        }

        if (!isset($this->data['card'])) {
            $this->data['card'] = false;
        }

        $pay = Dever::load('shop/lib/sell')->action($this->data['method'], $this->data['pay_method'], $this->user, $this->shop, $this->data['name'], $this->data['num'], $this->data['list'], $this->data['price'], $address_id, $invoice_id, $info, $this->data['card'], $this->data['coupon_id'], $this->data['user_coupon_id'], $parent_uid, $cart, $refer);
        return $pay;
    }

    # 再次付款
    public function r_pay()
    {
        $refer = Dever::input('refer');
        $order_id = Dever::input('order_id');

        $pay = Dever::load('shop/lib/sell')->raction($order_id, $refer);

        return $pay;
    }
}