shanshanzhong
c431393266
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将 getDiscount 和 isNewUserOnlyForQuantity 的匹配逻辑从 inputMonths >= discount.Quantity 改为 inputMonths == discount.Quantity， 买多少天就用多少天对应的折扣，避免错误配置导致折扣泄漏。 同时增加 discount 值合法性校验（>0 且 <100）。 Co-Authored-By: claude-flow <ruv@ruv.net>
45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package portal
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import (
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"github.com/perfect-panel/server/internal/model/coupon"
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"github.com/perfect-panel/server/internal/model/payment"
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"github.com/perfect-panel/server/internal/types"
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)
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func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64, isNewUser bool) float64 {
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for _, discount := range discounts {
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if discount.NewUserOnly && !isNewUser {
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continue
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}
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if inputMonths == discount.Quantity && discount.Discount > 0 && discount.Discount < 100 {
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return discount.Discount / float64(100)
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}
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}
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return 1
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}
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func calculateCoupon(amount int64, couponInfo *coupon.Coupon) int64 {
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if couponInfo.Type == 1 {
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return int64(float64(amount) * (float64(couponInfo.Discount) / float64(100)))
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} else {
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return min(couponInfo.Discount, amount)
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}
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}
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func calculateFee(amount int64, config *payment.Payment) int64 {
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var fee float64
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switch config.FeeMode {
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case 0:
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return 0
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case 1:
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fee = float64(amount) * (float64(config.FeePercent) / float64(100))
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case 2:
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if amount > 0 {
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fee = float64(config.FeeAmount)
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}
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case 3:
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fee = float64(amount)*(float64(config.FeePercent)/float64(100)) + float64(config.FeeAmount)
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}
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return int64(fee)
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}
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