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feat(payment): balance recharge multiplier and refund amount separation

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- Add balance_recharge_multiplier system setting (e.g. 1.2 = charge 100 get 120)
- Separate order_amount (credited balance) from pay_amount (actual payment)
- Refund calculates gateway amount proportionally from pay_amount
- Frontend shows both amounts in order details, payment status, refund dialog
- Admin settings UI for configuring recharge multiplier
This commit is contained in:
erio
2026-04-15 00:14:57 +08:00
parent 7c671b5373
commit 60a4b9316b
24 changed files with 246 additions and 101 deletions
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47
backend/internal/handler/admin/setting_handler.go
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@@ -188,6 +188,7 @@ func (h *SettingHandler) GetSettings(c *gin.Context) {
PaymentMaxPendingOrders: paymentCfg.MaxPendingOrders,
PaymentEnabledTypes: paymentCfg.EnabledTypes,
PaymentBalanceDisabled: paymentCfg.BalanceDisabled,
PaymentBalanceRechargeMultiplier: paymentCfg.BalanceRechargeMultiplier,
PaymentLoadBalanceStrat: paymentCfg.LoadBalanceStrategy,
PaymentProductNamePrefix: paymentCfg.ProductNamePrefix,
PaymentProductNameSuffix: paymentCfg.ProductNameSuffix,
@@ -323,9 +324,10 @@ type UpdateSettingsRequest struct {
PaymentDailyLimit *float64 `json:"payment_daily_limit"`
PaymentOrderTimeoutMin *int `json:"payment_order_timeout_minutes"`
PaymentMaxPendingOrders *int `json:"payment_max_pending_orders"`
PaymentEnabledTypes []string `json:"payment_enabled_types"`
PaymentBalanceDisabled *bool `json:"payment_balance_disabled"`
PaymentLoadBalanceStrat *string `json:"payment_load_balance_strategy"`
PaymentEnabledTypes []string `json:"payment_enabled_types"`
PaymentBalanceDisabled *bool `json:"payment_balance_disabled"`
PaymentBalanceRechargeMultiplier *float64 `json:"payment_balance_recharge_multiplier"`
PaymentLoadBalanceStrat *string `json:"payment_load_balance_strategy"`
PaymentProductNamePrefix *string `json:"payment_product_name_prefix"`
PaymentProductNameSuffix *string `json:"payment_product_name_suffix"`
PaymentHelpImageURL *string `json:"payment_help_image_url"`
@@ -934,24 +936,25 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
// Skip if no payment fields were provided (prevents accidental wipe).
if h.paymentConfigService != nil && hasPaymentFields(req) {
paymentReq := service.UpdatePaymentConfigRequest{
Enabled: req.PaymentEnabled,
MinAmount: req.PaymentMinAmount,
MaxAmount: req.PaymentMaxAmount,
DailyLimit: req.PaymentDailyLimit,
OrderTimeoutMin: req.PaymentOrderTimeoutMin,
MaxPendingOrders: req.PaymentMaxPendingOrders,
EnabledTypes: req.PaymentEnabledTypes,
BalanceDisabled: req.PaymentBalanceDisabled,
LoadBalanceStrategy: req.PaymentLoadBalanceStrat,
ProductNamePrefix: req.PaymentProductNamePrefix,
ProductNameSuffix: req.PaymentProductNameSuffix,
HelpImageURL: req.PaymentHelpImageURL,
HelpText: req.PaymentHelpText,
CancelRateLimitEnabled: req.PaymentCancelRateLimitEnabled,
CancelRateLimitMax: req.PaymentCancelRateLimitMax,
CancelRateLimitWindow: req.PaymentCancelRateLimitWindow,
CancelRateLimitUnit: req.PaymentCancelRateLimitUnit,
CancelRateLimitMode: req.PaymentCancelRateLimitMode,
Enabled: req.PaymentEnabled,
MinAmount: req.PaymentMinAmount,
MaxAmount: req.PaymentMaxAmount,
DailyLimit: req.PaymentDailyLimit,
OrderTimeoutMin: req.PaymentOrderTimeoutMin,
MaxPendingOrders: req.PaymentMaxPendingOrders,
EnabledTypes: req.PaymentEnabledTypes,
BalanceDisabled: req.PaymentBalanceDisabled,
BalanceRechargeMultiplier: req.PaymentBalanceRechargeMultiplier,
LoadBalanceStrategy: req.PaymentLoadBalanceStrat,
ProductNamePrefix: req.PaymentProductNamePrefix,
ProductNameSuffix: req.PaymentProductNameSuffix,
HelpImageURL: req.PaymentHelpImageURL,
HelpText: req.PaymentHelpText,
CancelRateLimitEnabled: req.PaymentCancelRateLimitEnabled,
CancelRateLimitMax: req.PaymentCancelRateLimitMax,
CancelRateLimitWindow: req.PaymentCancelRateLimitWindow,
CancelRateLimitUnit: req.PaymentCancelRateLimitUnit,
CancelRateLimitMode: req.PaymentCancelRateLimitMode,
}
if err := h.paymentConfigService.UpdatePaymentConfig(c.Request.Context(), paymentReq); err != nil {
response.ErrorFrom(c, err)
@@ -1082,6 +1085,7 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
PaymentMaxPendingOrders: updatedPaymentCfg.MaxPendingOrders,
PaymentEnabledTypes: updatedPaymentCfg.EnabledTypes,
PaymentBalanceDisabled: updatedPaymentCfg.BalanceDisabled,
PaymentBalanceRechargeMultiplier: updatedPaymentCfg.BalanceRechargeMultiplier,
PaymentLoadBalanceStrat: updatedPaymentCfg.LoadBalanceStrategy,
PaymentProductNamePrefix: updatedPaymentCfg.ProductNamePrefix,
PaymentProductNameSuffix: updatedPaymentCfg.ProductNameSuffix,
@@ -1101,6 +1105,7 @@ func hasPaymentFields(req UpdateSettingsRequest) bool {
req.PaymentMaxAmount != nil || req.PaymentDailyLimit != nil ||
req.PaymentOrderTimeoutMin != nil || req.PaymentMaxPendingOrders != nil ||
req.PaymentEnabledTypes != nil || req.PaymentBalanceDisabled != nil ||
req.PaymentBalanceRechargeMultiplier != nil ||
req.PaymentLoadBalanceStrat != nil || req.PaymentProductNamePrefix != nil ||
req.PaymentProductNameSuffix != nil || req.PaymentHelpImageURL != nil ||
req.PaymentHelpText != nil || req.PaymentCancelRateLimitEnabled != nil ||