From c6bd6930584b4b75245b48cb590d918cd73a1cb7 Mon Sep 17 00:00:00 2001
From: Michael Pilosov <consistentbayes@gmail.com>
Date: Tue, 21 Apr 2026 20:22:38 -0600
Subject: [PATCH] runtime display

---
 app/web/main.py              | 16 ++++++++++++++++
 app/web/static/style.css     |  8 ++++++++
 app/web/templates/_runs.html |  1 +
 3 files changed, 25 insertions(+)

diff --git a/app/web/main.py b/app/web/main.py
index db6bec7..eb68739 100644
--- a/app/web/main.py
+++ b/app/web/main.py
@@ -453,6 +453,18 @@ app.mount("/static", StaticFiles(directory=str(BASE_DIR / "static")), name="stat
 templates = Jinja2Templates(directory=str(BASE_DIR / "templates"))
 
 
+def _fmt_runtime(seconds: Optional[float]) -> Optional[str]:
+    if seconds is None or seconds <= 0:
+        return None
+    if seconds < 60:
+        return f"{seconds:.1f}s"
+    m, s = divmod(int(seconds), 60)
+    if m < 60:
+        return f"{m}m{s:02d}s"
+    h, m = divmod(m, 60)
+    return f"{h}h{m:02d}m"
+
+
 def _run_view(run: Dict[str, Any]) -> Dict[str, Any]:
     """Normalise a flow-run dict for the template."""
     rid = run.get("id", "")
@@ -460,6 +472,9 @@ def _run_view(run: Dict[str, Any]) -> Dict[str, Any]:
     state_name = run.get("state_name") or state_type.title()
     start = run.get("start_time") or run.get("expected_start_time") or run.get("created")
     params = run.get("parameters") or {}
+    # estimated_run_time recomputes server-side (ticks up while RUNNING);
+    # total_run_time is the authoritative value once the run finishes.
+    rtime_s = run.get("estimated_run_time") or run.get("total_run_time")
     # Try to look up synthesised outputs either from memory or from params
     ref_file = None
     emb_file = None
@@ -493,6 +508,7 @@ def _run_view(run: Dict[str, Any]) -> Dict[str, Any]:
         "state_type": state_type,
         "state_name": state_name,
         "start": start,
+        "runtime": _fmt_runtime(float(rtime_s) if rtime_s is not None else None),
         "params": params,
         "ref_file": ref_file,
         "emb_file": emb_file,
diff --git a/app/web/static/style.css b/app/web/static/style.css
index 85ef745..af040ee 100644
--- a/app/web/static/style.css
+++ b/app/web/static/style.css
@@ -426,6 +426,14 @@ button.submit:disabled { background: var(--faint); border-color: var(--faint); c
 .badge.crashed,
 .badge.cancelled { color: var(--alarm); background: #f4e8e4; }
 
+.run .stamp .rt {
+  display: block;
+  color: var(--faint);
+  font-size: 0.68rem;
+  margin-bottom: 8px;
+  font-variant-numeric: tabular-nums;
+}
+
 .run .recipe {
   font-family: var(--serif);
   font-size: 0.92rem;
diff --git a/app/web/templates/_runs.html b/app/web/templates/_runs.html
index 2e205d4..689419c 100644
--- a/app/web/templates/_runs.html
+++ b/app/web/templates/_runs.html
@@ -9,6 +9,7 @@
     {% for r in runs %}
       <li class="run {% if just_submitted is defined and r.id == just_submitted %}just-submitted{% endif %}">
         <div class="stamp">
+          {% if r.runtime %}<span class="rt">{{ r.runtime }}</span>{% endif %}
           {% if r.start %}{{ r.start[:10] }}<br/>{{ r.start[11:19] }}{% else %}&nbsp;{% endif %}
           <span class="id">#{{ r.short_id }}</span>
         </div>