feat:额外收费

lib/common/utils/discounts/discounts_tool.dart

@@ -0,0 +1,54 @@
+import 'package:common_utils/common_utils.dart';
+import 'package:get/get.dart';
+import 'package:pj_supermarket_cloud/common/index.dart';
+
+class DiscountsTool {
+  /// 更新用户优惠列表
+  static Future<List<DiscountsItem>?> updateUserDiscountsList({
+    required String userId,
+  }) async {
+    final sysSetting = await AppSettingTool.getSysSetting();
+    final params = {
+      "userId": userId,
+      "hardId": sysSetting.serviceId,
+    };
+    final discountsRes = await WalletApi.getDiscountsListByUserId(params);
+    if (ObjectUtil.isEmpty(discountsRes)) return null;
+    final app = Get.find<AppControl>();
+    final userDao = app.dataBase.getUserDao;
+    // 查询用户表
+    final userEntity = await userDao.findByUserId(userId);
+    if (ObjectUtil.isEmpty(userEntity)) return discountsRes;
+    // 能更新优惠(防止同一个用户频繁更新)
+    if (userEntity!.isUpdateDiscounts()) {
+      userEntity.discountsList = discountsRes;
+      userEntity.discountsUpdateTime = DateTime.now();
+      await userDao.edit(userEntity);
+    }
+    // 更新到用户表
+    return discountsRes;
+  }
+
+  /// 计算额外增加的金额
+  /// [totalPrice] 总金额(分)
+  /// [discountsItem] 优惠项
+  /// [return] 额外增加的金额(分)
+  static Future<int> computedExtraPrice({
+    required String userId,
+    required int totalPrice,
+    required String hourType,
+  }) async {
+    var discountsItems = await updateUserDiscountsList(userId: userId);
+    discountsItems = discountsItems
+        ?.where((element) => element.hourType?.code == hourType)
+        .toList();
+    if (ObjectUtil.isEmpty(discountsItems)) return 0;
+    var extraPrice = 0;
+    for (final item in discountsItems!) {
+      final extraPer = item.extraPer;
+      if (extraPer == null || extraPer <= 1.0) continue;
+      extraPrice += item.computedDiscountsExtraPrice(totalPrice);
+    }
+    return extraPrice;
+  }
+}

lib/common/utils/index.dart

@@ -12,6 +12,8 @@ export './app/app_setting_tool.dart';
 export './app/app_sys_tool.dart';
 export './app/app_user_tool.dart';
 
+export './discounts/discounts_tool.dart';
+
 export './json/json_tool.dart';
 
 export './keyboard/keyboard_tool.dart';

lib/common/utils/json/json_tool.dart

@@ -56,4 +56,22 @@ abstract class JsonTool {
     if (value == null) return null;
     return value.toString();
   }
+
+  static DiscountsType? stringToDiscountsType(String? value) {
+    return DiscountsType.values.fromCode(value);
+  }
+
+  static String? discountsTypeToString(DiscountsType? value) {
+    if (value == null) return null;
+    return value.toString();
+  }
+
+  static ProductHourType? stringToProductHourType(String? value) {
+    return ProductHourType.values.fromCode(value);
+  }
+
+  static String? productHourTypeToString(ProductHourType? value) {
+    if (value == null) return null;
+    return value.toString();
+  }
 }