From 2f46d49016281758b786fa922595f7b146280ad4 Mon Sep 17 00:00:00 2001
From: Graham McIntire <graham@mcintire.me>
Date: Sun, 26 Apr 2026 09:56:55 -0500
Subject: [PATCH] feat(rover): clear selected candidate + path lines on
 recalculate

---
 assets/js/rover_map_hook.ts              | 11 ++++++++++-
 lib/microwaveprop_web/live/rover_live.ex |  1 +
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/assets/js/rover_map_hook.ts b/assets/js/rover_map_hook.ts
index e2815913..aca7abec 100644
--- a/assets/js/rover_map_hook.ts
+++ b/assets/js/rover_map_hook.ts
@@ -276,7 +276,16 @@ export const RoverMap: Partial<RoverMapHook> = {
       }
     ) => {
       this.candidatePathLayer.clearLayers()
-      if (!candidate || !paths || paths.length === 0) return
+
+      if (!candidate) {
+        if (this.selectedCandidateMarker) {
+          this.map.removeLayer(this.selectedCandidateMarker)
+          this.selectedCandidateMarker = null
+        }
+        return
+      }
+
+      if (!paths || paths.length === 0) return
 
       for (const p of paths) {
         L.polyline(
diff --git a/lib/microwaveprop_web/live/rover_live.ex b/lib/microwaveprop_web/live/rover_live.ex
index 0e6ddecf..1bcf9912 100644
--- a/lib/microwaveprop_web/live/rover_live.ex
+++ b/lib/microwaveprop_web/live/rover_live.ex
@@ -320,6 +320,7 @@ defmodule MicrowavepropWeb.RoverLive do
      socket
      |> assign(top_candidates: cands, selected_candidate: nil, scoring_loading: false)
      |> apply_scoring_warnings(warnings)
+     |> push_event("candidate_paths", %{candidate: nil, paths: []})
      |> push_event("rover_results", %{
        cells: cells,
        drive_radius_km: socket.assigns.drive_radius_km