Filter invalid Slack users. (#26)

Signed-off-by: viktor-kurchenko <[email protected]>

Author: viktor-kurchenko

pkg/slack/slack.go

@@ -55,6 +55,9 @@ func (s *slackProvider) readUsers(ctx context.Context) error {
 		return err
 	}
 	for _, u := range users {
+		if !isValidUser(u) {
+			continue
+		}
 		s.slackIDs[u.ID] = struct{}{}
 		profile := u.Profile
 		if profile.Email != "" {
@@ -77,6 +80,10 @@ func (s *slackProvider) readUsers(ctx context.Context) error {
 	return nil
 }
 
+func isValidUser(u slack.User) bool {
+	return !u.Deleted && !u.IsBot && !u.IsRestricted && !u.IsUltraRestricted && !u.IsInvitedUser
+}
+
 func (s *slackProvider) readChannels(ctx context.Context) error {
 	var (
 		channels []slack.Channel