修复拉卡拉支付时间偏差

backend/internal/modules/payment/repository.go

@@ -14,6 +14,7 @@ import (
 	"hfb_sys/backend/internal/modules/order"
 	"hfb_sys/backend/internal/modules/paymentconfig"
 	"hfb_sys/backend/internal/modules/wallet"
+	"hfb_sys/backend/internal/timeutil"
 
 	"gorm.io/datatypes"
 	"gorm.io/gorm"
@@ -756,9 +757,27 @@ func canReuseOrderPayment(payment model.PaymentOrder, runtimeConfig runtimePayme
 	if payment.MerchantID != "" && runtimeConfig.MerchantID != "" && payment.MerchantID != runtimeConfig.MerchantID {
 		return false
 	}
+	if payment.Status == "paying" && paymentCashierExpired(payment) {
+		return false
+	}
 	return true
 }
 
+func paymentCashierExpired(payment model.PaymentOrder) bool {
+	if len(payment.RawRequest) == 0 {
+		return false
+	}
+	var raw map[string]string
+	if err := json.Unmarshal(payment.RawRequest, &raw); err != nil {
+		return false
+	}
+	deadline := parseChannelTime(raw["order_efficient_time"])
+	if deadline == nil {
+		return false
+	}
+	return !timeutil.ShanghaiNow().Before(*deadline)
+}
+
 func newOrderPayment(row model.RentalOrder, amountCent int64, req StartPaymentRequest, runtimeConfig runtimePaymentConfig) (model.PaymentOrder, error) {
 	paymentNo, err := newPaymentNo()
 	if err != nil {
@@ -999,7 +1018,7 @@ func parseChannelTime(value string) *time.Time {
 		return nil
 	}
 	for _, layout := range []string{"2006-01-02 15:04:05", "20060102150405", time.RFC3339} {
-		parsed, err := time.ParseInLocation(layout, value, time.Local)
+		parsed, err := time.ParseInLocation(layout, value, timeutil.ShanghaiLocation())
 		if err == nil {
 			return &parsed
 		}

backend/internal/modules/payment/repository_test.go

@@ -2,8 +2,12 @@ package payment
 
 import (
 	"testing"
+	"time"
 
 	"hfb_sys/backend/internal/model"
+	"hfb_sys/backend/internal/timeutil"
+
+	"gorm.io/datatypes"
 )
 
 func TestCanReuseOrderPaymentRejectsTerminalAndOldChannel(t *testing.T) {
@@ -85,3 +89,42 @@ func TestNewOrderPaymentUsesPaymentNoAsThirdOrderID(t *testing.T) {
 		t.Fatalf("payment order fields mismatch: %+v", payment)
 	}
 }
+
+func TestCanReuseOrderPaymentRejectsExpiredCashier(t *testing.T) {
+	runtimeConfig := runtimePaymentConfig{
+		Provider:   "lakala",
+		MerchantID: "M2",
+	}
+	expiredPayment := model.PaymentOrder{
+		Status:     "paying",
+		Provider:   "lakala",
+		MerchantID: "M2",
+		RawRequest: datatypes.JSON([]byte(`{"order_efficient_time":"20000101000000"}`)),
+	}
+	if canReuseOrderPayment(expiredPayment, runtimeConfig) {
+		t.Fatal("canReuseOrderPayment() = true, want false for expired cashier")
+	}
+
+	activePayment := expiredPayment
+	activePayment.RawRequest = datatypes.JSON([]byte(`{"order_efficient_time":"20990101000000"}`))
+	if !canReuseOrderPayment(activePayment, runtimeConfig) {
+		t.Fatal("canReuseOrderPayment() = false, want true for active cashier")
+	}
+}
+
+func TestParseChannelTimeUsesShanghaiWhenLocalIsUTC(t *testing.T) {
+	oldLocal := time.Local
+	time.Local = time.UTC
+	defer func() {
+		time.Local = oldLocal
+	}()
+
+	parsed := parseChannelTime("20260607202700")
+	if parsed == nil {
+		t.Fatal("parseChannelTime() = nil")
+	}
+	got := parsed.In(timeutil.ShanghaiLocation()).Format("20060102150405")
+	if got != "20260607202700" {
+		t.Fatalf("parseChannelTime() = %s, want 20260607202700 in Asia/Shanghai", got)
+	}
+}