物流运算的公共函数

yvan.ni
1 parent 5d832b12
Showing 1 changed file with 78 additions and 0 deletions
utils/util.js
@@ -514,6 +514,83 @@ function wx_back() {
     }
 }
+
+//-------------------计算物流---------------
+function calculatewuliu(code, o_shipping_price, goods_weight, out_of_weight,
+                          goods_piece, user_addr, back_data,rs) {
+    var price = 0;
+    price += parseFloat(o_shipping_price);
+    if (user_addr == null) {
+        return 0;
+    }
+    //如果是包邮
+    if (back_data && back_data.is_by_all && !back_data.no_free_goods && out_of_weight >= 0) {
+        return 0;
+    }
+    //计算物流的config  item;
+    var item = null;
+
+    //------------循环获取config-----------
+    function get_wuliu_config(region_id, code, rs) {
+        var item = null, rslist = rs.pageData;
+        for (var i = 0; i < rslist.length; i++) {
+            if (rslist[i].code == code && rslist[i].region_id == region_id) {
+                item = rslist[i];
+            }
+        }
+        return item;
+    }
+    //-------循环获取config,code default-------
+    function get_wuliu_default(code, rs) {
+        var item = null, rslist = rs.pageData;
+        for (var i = 0; i < rslist.length; i++) {
+            if (rslist[i].shipping_code == code && rslist[i].is_default == 1) {
+                item = rslist[i];
+            }
+        }
+        return item;
+    }
+
+    //先根据 镇 县 区找计算的config
+    item = get_wuliu_config(user_addr.district, code, rs);
+    if (item == null) item = get_wuliu_config(user_addr.city, code, rs);
+    if (item == null) item = get_wuliu_config(user_addr.province, code, rs);
+    if (item == null) item = get_wuliu_default(code, rs);
+    if (item == null) return o_shipping_price;
+    var fw_price = 0, fp_price = 0;
+    item = item.config;
+    if (item == null) return o_shipping_price;
+
+    //------超出重量----------
+    if (back_data && back_data.is_by_all &&  out_of_weight<0){
+        goods_weight+=out_of_weight;
+        if(goods_weight<=0) goods_weight=-1;
+    }
+
+    //------按重量----------
+    if (goods_weight >= 0 && item['money']) {
+        fw_price = parseFloat(item['money']);
+        if (goods_weight > item['first_weight']) {
+            var fw = goods_weight - item['first_weight'];
+            var n = Math.ceil(fw / item['second_weight'])
+            fw_price = fw_price + n * parseFloat(item['add_money']);
+        }
+    }
+
+    //------按件数----------
+    if (goods_piece > 0 && item['piecemoney']) {
+        fp_price = parseFloat(item['piecemoney']);
+        if (goods_piece > item['first_piece']) {
+            var fp = goods_piece - item['first_piece'];
+            var m = Math.ceil(fp / item['second_piece'])
+            fp_price = fp_price + m * parseFloat(item['add_piecemoney']);
+        }
+    }
+
+    var rspice = parseFloat(price + fw_price + fp_price);
+    return rspice;
+}
+
 module.exports = {
     formatTime: function(e, r) {
         var t = e ? new Date(1e3 * e) : new Date(), n = t.getFullYear(), o = t.getMonth() + 1, a = t.getDate(), u = t.getHours(), i = t.getMinutes(), f = t.getSeconds(), s = function(e) {
@@ -627,4 +704,5 @@ module.exports = {
 	ajax_ok2:ajax_ok2, //将JS数组对象按其某个键值重组成Map对象
     wx_back:wx_back,
     _debounce,
+    calculatewuliu:calculatewuliu, //计算物流的函数进行抽象
 };