优化结构

internal/data/integration/integration_config.go

@@ -27,10 +27,38 @@ func (ConfigPO) TableName() string { return "sys_integration_configs" }
 
 type integrationConfigRepo struct{ data Provider }
 
+type paymentConfigReader struct{ data Provider }
+
 func NewIntegrationConfigRepo(data Provider) integrationbiz.IntegrationConfigRepo {
 	return &integrationConfigRepo{data: data}
 }
 
+// NewPaymentConfigReader exposes only the raw payment configuration needed by
+// the payment data module. The ConfigPO and its table name stay private here.
+func NewPaymentConfigReader(data Provider) integrationbiz.PaymentConfigReader {
+	return &paymentConfigReader{data: data}
+}
+
+func (r *paymentConfigReader) ReadPaymentConfig(ctx context.Context, provider string) (*integrationbiz.PaymentConfig, error) {
+	if r == nil || r.data == nil || r.data.DB() == nil {
+		return nil, errors.New("集成配置数据库未初始化")
+	}
+	provider = strings.ToLower(strings.TrimSpace(provider))
+	if provider == "" {
+		return nil, errors.New("支付渠道不能为空")
+	}
+	var row ConfigPO
+	if err := r.data.DB().WithContext(ctx).
+		Where("kind = ? AND provider = ?", integrationbiz.IntegrationKindPayment, provider).
+		First(&row).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, integrationbiz.ErrPaymentConfigNotFound
+		}
+		return nil, err
+	}
+	return &integrationbiz.PaymentConfig{Enabled: row.Enabled, Values: append(json.RawMessage(nil), []byte(row.Config)...)}, nil
+}
+
 func (r *integrationConfigRepo) ListIntegrationConfigs(ctx context.Context, kind string) ([]*integrationbiz.IntegrationConfig, error) {
 	var rows []ConfigPO
 	if err := r.data.DB().WithContext(ctx).Where("kind = ?", kind).Order("provider ASC").Find(&rows).Error; err != nil {

internal/data/integration/providers.go

@@ -2,4 +2,4 @@ package integration
 
 import "github.com/google/wire"
 
-var ProviderSet = wire.NewSet(NewIntegrationConfigRepo)
+var ProviderSet = wire.NewSet(NewIntegrationConfigRepo, NewPaymentConfigReader)