roughed in limit warning email actions (#276)

controller/limits/accountWarningAction.go

@@ -0,0 +1,30 @@
+package limits
+
+import (
+	"github.com/jmoiron/sqlx"
+	"github.com/openziti/edge/rest_management_api_client"
+	"github.com/openziti/zrok/controller/emailUi"
+	"github.com/openziti/zrok/controller/store"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+type accountWarningAction struct {
+	str  *store.Store
+	edge *rest_management_api_client.ZitiEdgeManagement
+	cfg  *emailUi.Config
+}
+
+func newAccountWarningAction(cfg *emailUi.Config, str *store.Store, edge *rest_management_api_client.ZitiEdgeManagement) *accountWarningAction {
+	return &accountWarningAction{str, edge, cfg}
+}
+
+func (a *accountWarningAction) HandleAccount(acct *store.Account, rxBytes, txBytes int64, limit *BandwidthPerPeriod, trx *sqlx.Tx) error {
+	logrus.Infof("warning '%v'", acct.Email)
+
+	if err := sendLimitWarningEmail(a.cfg, acct.Email, limit, rxBytes, txBytes); err != nil {
+		return errors.Wrapf(err, "error sending limit warning email to '%v'", acct.Email)
+	}
+
+	return nil
+}