Add leaderboard for all tracks and track calendar

server/internal/races/service.go

@@ -740,6 +740,78 @@ func (s *Service) GetLeaderboard(ctx context.Context, trackID string, year int,
 	}, nil
 }
 
+// GetCalendarLeaderboard returns the leaderboard details of all scheduled tracks.
+func (s *Service) GetCalendarLeaderboard(ctx context.Context, year int, currentDriverID string) ([]TrackCalendarLeaderboard, error) {
+	if year == 0 {
+		year = s.now().Year()
+	}
+
+	calendarInfo, err := s.pg.GetCalendarLeaderboardTracks(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	now := s.now()
+	var out []TrackCalendarLeaderboard
+
+	// Cache driver profile fallback if we need it
+	var fallbackProfile *LeaderboardEntry
+	if currentDriverID != "" {
+		fallbackProfile, err = s.pg.GetDriverLeaderboardProfile(ctx, currentDriverID)
+		if err != nil {
+			return nil, err
+		}
+		if fallbackProfile != nil {
+			fallbackProfile.Points = 0
+			fallbackProfile.Rank = 0
+		}
+	}
+
+	for _, cal := range calendarInfo {
+		status := "planned"
+		if now.After(cal.EndAt) {
+			status = "finished"
+		} else if (now.Equal(cal.StartAt) || now.After(cal.StartAt)) && now.Before(cal.EndAt) {
+			status = "active"
+		}
+
+		// Get top 3
+		podium, _, err := s.pg.GetTrackLeaderboard(ctx, cal.TrackID, year, 3, 0)
+		if err != nil {
+			return nil, err
+		}
+		if podium == nil {
+			podium = []LeaderboardEntry{}
+		}
+
+		// Get current driver
+		var curDriver *LeaderboardEntry
+		if currentDriverID != "" {
+			curDriver, err = s.pg.GetTrackLeaderboardDriver(ctx, cal.TrackID, year, currentDriverID)
+			if err != nil {
+				return nil, err
+			}
+			if curDriver == nil && fallbackProfile != nil {
+				// Clone the fallback profile so we don't share pointer/modify original
+				profileCopy := *fallbackProfile
+				curDriver = &profileCopy
+			}
+		}
+
+		out = append(out, TrackCalendarLeaderboard{
+			TrackID:       cal.TrackID,
+			TrackName:     cal.TrackName,
+			StartAt:       cal.StartAt,
+			EndAt:         cal.EndAt,
+			Status:        status,
+			Podium:        podium,
+			CurrentDriver: curDriver,
+		})
+	}
+
+	return out, nil
+}
+
 // ---------------------------------------------------------------------------
 // Scheduler
 // ---------------------------------------------------------------------------