From df13e279b62fb05f84507f352d546d48ea82712c Mon Sep 17 00:00:00 2001
From: mvglasow <michael -at- vonglasow.com>
Date: Thu, 12 Jun 2025 00:36:17 +0300
Subject: [PATCH] [traffic] Override EdgeEstimator::CalcOffroad()

Signed-off-by: mvglasow <michael -at- vonglasow.com>
---
 routing/edge_estimator.hpp |  2 +-
 traffxml/traff_decoder.cpp | 15 +++++++++++++++
 traffxml/traff_decoder.hpp | 12 ++++++++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/routing/edge_estimator.hpp b/routing/edge_estimator.hpp
index 1a9fc83b5..4df9c934b 100644
--- a/routing/edge_estimator.hpp
+++ b/routing/edge_estimator.hpp
@@ -106,7 +106,7 @@ public:
    * @param purpose The purpose for which the result is to be used.
    * @return Travel time in seconds.
    */
-  double CalcOffroad(ms::LatLon const & from, ms::LatLon const & to, Purpose purpose) const;
+  virtual double CalcOffroad(ms::LatLon const & from, ms::LatLon const & to, Purpose purpose) const;
 
   /**
    * @brief Returns the travel time along a segment.
diff --git a/traffxml/traff_decoder.cpp b/traffxml/traff_decoder.cpp
index 632354b7d..1e0ca3d9e 100644
--- a/traffxml/traff_decoder.cpp
+++ b/traffxml/traff_decoder.cpp
@@ -470,6 +470,21 @@ double RoutingTraffDecoder::TraffEstimator::GetFerryLandingPenalty(Purpose purpo
   UNREACHABLE();
 }
 
+double RoutingTraffDecoder::TraffEstimator::CalcOffroad(ms::LatLon const & from, ms::LatLon const & to,
+                                  Purpose purpose) const
+{
+  if (purpose == Purpose::ETA)
+    return 0.0;
+
+  double result = ms::DistanceOnEarth(from, to);
+
+  LOG(LINFO, ("Distance:", result, "weighted:", result * kOffroadPenalty));
+
+  result *= kOffroadPenalty;
+
+  return result;
+}
+
 double RoutingTraffDecoder::TraffEstimator::CalcSegmentWeight(routing::Segment const & segment, routing::RoadGeometry const & road, Purpose purpose) const
 {
   double result = road.GetDistance(segment.GetSegmentIdx());
diff --git a/traffxml/traff_decoder.hpp b/traffxml/traff_decoder.hpp
index 81524f06c..252b219bb 100644
--- a/traffxml/traff_decoder.hpp
+++ b/traffxml/traff_decoder.hpp
@@ -273,6 +273,18 @@ public:
     }
 
     // EdgeEstimator overrides:
+
+    /**
+     * @brief Estimates travel time between two points along a direct fake edge.
+     *
+     * Estimates time in seconds it takes to go from point `from` to point `to` along direct fake edge.
+     *
+     * @param from The start point.
+     * @param to The destination point.
+     * @param purpose The purpose for which the result is to be used.
+     * @return Travel time in seconds.
+     */
+    double CalcOffroad(ms::LatLon const & from, ms::LatLon const & to, Purpose purpose) const override;
     double CalcSegmentWeight(routing::Segment const & segment, routing::RoadGeometry const & road, Purpose purpose) const override;
     double GetUTurnPenalty(Purpose /* purpose */) const override;
     double GetFerryLandingPenalty(Purpose purpose) const override;