fix: expose friend online status

server/im_http.go

@@ -4463,7 +4463,7 @@ func serveIMFriends(wrt http.ResponseWriter, req *http.Request) {
 		if item.Friendship.PeerID == principal.Uid {
 			continue
 		}
-		payload = append(payload, friendListItemPayload(item))
+		payload = append(payload, friendListItemPayload(principal.TenantID, principal.Uid, item))
 	}
 	writeIMSuccess(wrt, req, map[string]any{"items": payload, "next_cursor": nextCursor})
 }
@@ -8967,13 +8967,20 @@ func friendRequestListItemPayload(item types.FriendRequestListItem) map[string]a
 	return data
 }
 
-func friendListItemPayload(item types.FriendListItem) map[string]any {
+func friendListItemPayload(tenantID types.TenantID, viewer types.Uid, item types.FriendListItem) map[string]any {
+	online := false
+	onlineVisibility := "hidden"
+	if item.Friendship.Status == types.RelationshipFriend && imCanViewLastSeen(tenantID, viewer, item.Friendship.PeerID) {
+		onlineVisibility = "visible"
+		online = redisUserOnline(tenantID, item.Friendship.PeerID, false)
+	}
 	data := map[string]any{
 		"user_id":             item.Friendship.PeerID.UserId(),
 		"relationship":        item.Friendship.Status,
 		"remark":              item.Friendship.Remark,
 		"topic":               item.Friendship.Topic,
-		"online_visibility":   "unknown",
+		"online":              online,
+		"online_visibility":   onlineVisibility,
 		"created_at":          item.Friendship.CreatedAt.UTC().Format(time.RFC3339Nano),
 		"updated_at":          item.Friendship.UpdatedAt.UTC().Format(time.RFC3339Nano),
 		"capabilities":        map[string]any{"can_send": item.Friendship.Status == types.RelationshipFriend, "can_call": imCanCall(item.Friendship.Status == types.RelationshipFriend)},
@@ -8990,6 +8997,10 @@ func friendListItemPayload(item types.FriendListItem) map[string]any {
 				data[key] = value
 			}
 		}
+		data["peer"] = userSummaryPayload(item.Peer, item.Friendship.Remark)
+		if peer, ok := data["peer"].(map[string]any); ok {
+			peer["online"] = online
+		}
 	}
 	if item.Friendship.Remark == "" && data["display_name"] == data["user_id"] {
 		data["display_name_source"] = "user_id"