压缩历史至 95081aff

internal/util/validate.go

@@ -0,0 +1,52 @@
+/*
+Copyright 2025 linux.do
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import (
+	"errors"
+
+	"github.com/linux-do/credit/internal/common"
+	"github.com/shopspring/decimal"
+)
+
+// ValidateRates 所有 rate 必须在 [0, 1] 范围内，且小数位数不超过2位
+func ValidateRates(rates ...decimal.Decimal) error {
+	for _, rate := range rates {
+		// 验证范围：必须在 [0, 1] 之间
+		if rate.LessThan(decimal.Zero) || rate.GreaterThan(decimal.NewFromInt(1)) {
+			return errors.New(common.RateMustBeBetweenZeroAndOne)
+		}
+
+		// 验证小数位数：不超过2位
+		if rate.Exponent() < -2 {
+			return errors.New(common.RateDecimalPlacesExceeded)
+		}
+	}
+
+	return nil
+}
+
+// ValidateAmount 验证金额：必须大于0，且小数位数不超过2位
+func ValidateAmount(amount decimal.Decimal) error {
+	if amount.LessThanOrEqual(decimal.Zero) {
+		return errors.New(common.AmountMustBeGreaterThanZero)
+	}
+	if amount.Exponent() < -2 {
+		return errors.New(common.AmountDecimalPlacesExceeded)
+	}
+	return nil
+}