fix: fan out unread presence to online sessions

server/push.go

@@ -10,7 +10,9 @@ package main
 import (
 	"time"
 
+	"github.com/tinode/chat/server/logs"
 	"github.com/tinode/chat/server/push"
+	"github.com/tinode/chat/server/store"
 	"github.com/tinode/chat/server/store/types"
 )
 
@@ -73,6 +75,14 @@ func (t *Topic) pushForData(fromUid types.Uid, data *MsgServerData, msgMarkedAsR
 			// Make sure the sender's devices receive a silent push.
 			online = 1
 		}
+		if online == 0 {
+			presence, err := store.GetUserPresence(t.tenantID, uid)
+			if err != nil {
+				logs.Warn.Printf("topic[%s]: failed to read user presence for push: uid=%s err=%v", t.name, uid.UserId(), err)
+			} else if presence != nil && presence.Online && presence.SessionCount > 0 {
+				online = presence.SessionCount
+			}
+		}
 
 		// Send only to those who have notifications enabled.
 		mode := pud.modeWant & pud.modeGiven