Initial QSfera import

Server/services/notifications/pkg/service/splitter.go

@@ -0,0 +1,61 @@
+package service
+
+import (
+	"context"
+
+	user "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
+	"github.com/qsfera/server/pkg/log"
+	"github.com/qsfera/server/pkg/middleware"
+	settingssvc "github.com/qsfera/server/protogen/gen/qsfera/services/settings/v0"
+	"github.com/qsfera/server/services/settings/pkg/store/defaults"
+	"github.com/pkg/errors"
+	micrometadata "go-micro.dev/v4/metadata"
+)
+
+type intervalSplitter struct {
+	log         log.Logger
+	valueClient settingssvc.ValueService
+}
+
+func newIntervalSplitter(l log.Logger, vc settingssvc.ValueService) *intervalSplitter {
+	return &intervalSplitter{log: l, valueClient: vc}
+}
+
+// execute splits users into 3 lists depending on their email sending interval settings
+func (s intervalSplitter) execute(ctx context.Context, users []*user.User) (instant, daily, weekly []*user.User) {
+	for _, u := range users {
+		userId := u.GetId().GetOpaqueId()
+		interval, err := getEmailSendingInterval(ctx, s.valueClient, userId)
+		if err != nil {
+			s.log.Error().Err(err).Str("userId", userId).Msg("cannot get user email sending interval")
+			instant = append(instant, u)
+		} else if interval == "instant" {
+			instant = append(instant, u)
+		} else if interval == _intervalDaily {
+			daily = append(daily, u)
+		} else if interval == _intervalWeekly {
+			weekly = append(weekly, u)
+		}
+	}
+	return
+}
+
+func getEmailSendingInterval(ctx context.Context, vc settingssvc.ValueService, userId string) (string, error) {
+	resp, err := vc.GetValueByUniqueIdentifiers(
+		micrometadata.Set(ctx, middleware.AccountID, userId),
+		&settingssvc.GetValueByUniqueIdentifiersRequest{
+			AccountUuid: userId,
+			SettingId:   defaults.SettingUUIDProfileEmailSendingInterval,
+		},
+	)
+
+	if err != nil {
+		return "", err
+	}
+
+	val := resp.GetValue().GetValue().GetStringValue()
+	if val == "" {
+		return "", errors.New("email sending interval is empty")
+	}
+	return val, nil
+}