输入金额和商家id获取商品列表

app/common/repositories/store/order/StoreOrderRepository.php

@@ -16,6 +16,7 @@ use app\common\dao\system\financial\FinancialRecordDao;
 use app\common\model\store\order\StoreGroupOrder;
 use app\common\model\store\order\StoreOrder;
 use app\common\model\store\order\StoreRefundOrder;
+use app\common\model\store\product\ProductAttrValue;
 use app\common\model\system\merchant\FinancialRecord;
 use app\common\model\system\merchant\Merchant;
 use app\common\model\user\User;
@@ -2553,6 +2554,183 @@ class StoreOrderRepository extends BaseRepository
     }
 
 
+    public function dealGoodsList($where,$money)
+    {
+        $data = ProductAttrValue::getDB()->alias('a')
+            ->leftJoin('store_product p', 'a.product_id = p.product_id')
+            ->where($where)
+            ->where('a.stock', '>', 0)
+            ->field('a.value_id,a.product_id,a.mer_id,a.sku,a.stock,a.image,a.price,
+            a.svip_price,
+            a.unique,p.store_name,p.store_info');
+        $list = $data->select();
+        $count = $data->count();
+        $minMoney = bcsub($money, 600, 2);
+
+        if ($count) {
+            $range = $this->getRangeNumber($minMoney); //减少一般的区间
+            //不存在--虚假的区间
+            if ($range == -1) {
+                //拿实际的区间去处理
+                $range = $this->getRangeNumber($money);//区间实际
+                $minMoney = bcdiv($money, 2, 2);
+                if ($range == -1) {
+                    return app('json')->fail('不在区间情况中');
+                }
+            }
+            $deal = $this->dealArr($list->toArray());
+            //平均2个左右 0 1 2  阶梯往上查寻找
+            $end = array($this->findNearestPriceProduct($deal[$range]['items'], $minMoney));//17jiji
+            if ($range == 0 && $deal[$range]['quantity'] = 1) { //第一个并且只有一条数据
+                if ($money < $end[0]['price']) {
+                    $list = $end;
+                } else {
+                    $list = array_merge($end, $end);//满足2条数据
+                }
+            } else {
+                //在1 或者 2区间
+                $newArray = [];
+                $list = $this->findNearestPriceProductDg($deal, $minMoney, $range, $newArray, $money, $money);
+
+            }
+            $count = count($list);
+            return compact('count', 'list');
+
+        } else {
+            return compact('count', 'list');
+        }
+    }
+
+
+
+
+    public function getRangeNumber($price, $ranges = [[0, 100], [100, 500], [500, PHP_INT_MAX]])
+    {
+        foreach ($ranges as $index => $range) {
+            if ($price >= $range[0] && $price <= $range[1]) {
+                return $index;
+            }
+        }
+        return -1;
+    }
+
+
+    public function dealArr($originalArray): array
+    {
+
+        $range1 = []; // 0-100元的商品
+        $range2 = []; // 100-500元的商品
+        $range3 = []; // 500元以上商品
+
+        $countRange1 = 0;
+        $countRange2 = 0;
+        $countRange3 = 0;
+
+        foreach ($originalArray as $item) {
+            $price = floatval($item['price']);
+            if ($price >= 0 && $price <= 100) {
+                $range1[] = $item;
+                $countRange1++;
+            } elseif ($price > 100 && $price <= 500) {
+                $range2[] = $item;
+                $countRange2++;
+            } else {
+                $range3[] = $item;
+                $countRange3++;
+            }
+        }
+
+        return [
+            ['range' => '0-100元', 'items' => $range1, 'quantity' => $countRange1],
+            ['range' => '100-500元', 'items' => $range2, 'quantity' => $countRange2],
+            ['range' => '500元以上', 'items' => $range3, 'quantity' => $countRange3],
+        ];
+
+    }
+
+
+
+    public function findNearestPriceProduct($array, $targetPrice)
+    {
+        $minDiff = PHP_INT_MAX;
+        $nearestProduct = null;
+
+        foreach ($array as $product) {
+            $price = floatval($product['price']);
+            $diff = abs($targetPrice - $price);
+
+            if ($diff < $minDiff) {
+                $minDiff = $diff;
+                $nearestProduct = $product;
+            }
+        }
+
+        return $nearestProduct;
+    }
+
+
+
+
+    //全部数组  假总金额   区间   新数组  总  拿去减少的
+    public function findNearestPriceProductDg($array, $targetPrice, $range, &$newArray, $trueMoney, $remarkMoney)
+    {
+        $minDiff = PHP_INT_MAX;
+        $nearestProduct = null;
+
+        foreach ($array[$range]['items'] as $product) {
+            $price = floatval($product['price']);
+            $diff = abs($targetPrice - $price);
+
+            if ($diff < $minDiff) {
+                $minDiff = $diff;
+                $nearestProduct = $product;
+            }
+        }
+
+        $newArray[] = $nearestProduct;
+        $remarkId = $nearestProduct['value_id'];
+        $totalPrice = array_sum(array_column($newArray, 'price')); //本次全部的价格之和
+
+        if ($totalPrice <= $remarkMoney) {
+            $next = $remarkMoney - $totalPrice;//剩下的
+            $tt = $remarkMoney - $totalPrice;
+            $range = $this->getRangeNumber($next);
+            $array = $this->dealReduce($array,$remarkId);
+            $this->findNearestPriceProductDg($array['data'], $targetPrice, $range, $newArray, $tt, $remarkMoney);
+
+        }
+        return $newArray;
+    }
+
+
+
+    public function dealReduce($data, $targetValueId): array
+    {
+        $found = false;
+
+        foreach ($data as &$category) {
+            foreach ($category['items'] as $itemKey => $item) {
+                if ($item['value_id'] === $targetValueId) {
+                    unset($category['items'][$itemKey]);
+                    if($category['quantity'] == 0){
+                        break 2;
+                    }
+                    $category['quantity'] -= 1;
+                    $found = true;
+                    break 2;
+                }
+            }
+        }
+
+        return [
+            'status' => $found,
+            'data' => $data
+        ];
+
+
+    }
+
+
 
 
 }

app/controller/api/store/order/StoreOrder.php

@@ -303,4 +303,26 @@ class StoreOrder extends BaseController
         $res = $orderRepository->show($id, $this->request->uid());
         return app('json')->success($res);
     }
+
+    public function getOrder()
+    {
+        //商户id  金额
+        $merId = $this->request->param('mer_id');
+        $money = $this->request->param('money');
+        if(empty($money) || empty($merId)){
+            return app('json')->fail('参数缺失');
+        }
+        $where = [
+            "p.is_show" => 1,
+            "p.status" => 1,
+            "p.product_type" => 0,
+            "p.is_gift_bag" => 0
+        ];
+        $where['a.mer_id'] = $merId;
+
+        return app('json')->success($this->repository->dealGoodsList($where,$money));
+
+    }
+
+
 }

route/api.php

@@ -65,6 +65,7 @@ Route::group('api/', function () {
         });
 
         //订单
+        Route::any('order_mix', 'api.store.order.StoreOrder/getOrder');//商户获取商品
         Route::group('order', function () {
             Route::post('check', '/checkOrder');
             Route::post('create', '/createOrder');