From 2c24a6f15bad3c5db39f13e958d0dbb814141abb Mon Sep 17 00:00:00 2001
From: Robert Horvath <rhorvath@basepowercompany.com>
Date: Fri, 16 Oct 2026 13:14:17 +0900
Subject: [PATCH] Follow the new simulation when opening its run log

---
 app/static/app.js            |  4 +++-
 tests/app_editor_clarity.cjs | 16 ++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/app/static/app.js b/app/static/app.js
index 96bc98bf..3b69bd97 100644
--- a/app/static/app.js
+++ b/app/static/app.js
@@ -7361,10 +7361,12 @@ async function startSelectedWorkflow() {
       headers: { "Content-Type": "application/json" },
       body: JSON.stringify({simulation_id: state.selectedSimulationId, vehicle_key: activeVehicleKey()}),
     });
+    state.status = await api("/api/status");
     state.selectedJobId = job.id;
+    document.getElementById("job-log").textContent = "";
+    document.getElementById("job-log").scrollTop = 0;
     document.getElementById("run-log-menu").open = true;
     state.simModalOpen = true;
-    state.status = await api("/api/status");
     renderStandard();
   } catch (error) {
     document.getElementById("run-log-menu").open = true;
diff --git a/tests/app_editor_clarity.cjs b/tests/app_editor_clarity.cjs
index 22a37175..23c93fbb 100644
--- a/tests/app_editor_clarity.cjs
+++ b/tests/app_editor_clarity.cjs
@@ -973,6 +973,22 @@ for (const [value, scale, display, edited, expected] of [
     api=async()=>({log:'updated output'});
     elements['job-log'].scrollHeight=1000; elements['job-log'].scrollTop=100;
     await loadJobLog();assert.equal(elements['job-log'].scrollTop,100,'reading position survives refresh');
+    selectedWorkflow=()=>({id:'lap-qss',actions:[]});
+    canRunStandardWorkflow=()=>true;
+    saveSimulationEdits=async()=>{};
+    activeVehicleKey=()=>'vehicle';
+    state.dirtySimConfig=false;
+    state.status={jobs:[{id:'old',label:'Old run',status:'succeeded',argv:[]}]};
+    state.selectedJobId='old';
+    const newJob={id:'new-run',label:'QSS lap',status:'running',argv:[]};
+    api=async path=>path==='/api/status' ? {jobs:[newJob,...state.status.jobs]} : newJob;
+    Object.defineProperty(elements['run-log-menu'],'open',{
+      get:()=>true,set:()=>renderRunLog(),configurable:true,
+    });
+    renderStandard=()=>renderRunLog();
+    await startSelectedWorkflow();
+    assert.equal(state.selectedJobId,'new-run','opening the log follows the new job');
+    assert.equal(elements['job-log'].scrollTop,0,'new run resets the old reading position');
     const saves=[];
     state.simulationWorkspace={simulations:[{id:'sim',name:'Original'}]};
     simulationRequest=async(action,values)=>saves.push({action,...values});