From b519e065cbfbde2df889ad3ac69a8fad04cd2a33 Mon Sep 17 00:00:00 2001
From: tocmo <tocmo@localhost>
Date: Sun, 5 Apr 2026 01:25:41 -0400
Subject: [PATCH] Fix discovery phase appearing frozen

Scanner now updates message every 250 files during os.walk so the UI
shows a live count. Progress bar switches to an indeterminate animated
pulse during discovery and takeout phases (no known total yet), then
reverts to a normal percentage bar once indexing begins.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 app/scanner.py       |  6 ++++++
 templates/index.html | 17 +++++++++++++++--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/app/scanner.py b/app/scanner.py
index 8a38fbd..a0b3ed0 100644
--- a/app/scanner.py
+++ b/app/scanner.py
@@ -492,6 +492,12 @@ def run_scan(folder_path: str, scan_id: int, mode: str = "incremental"):
                 ext = Path(fname).suffix.lower()
                 if ext in SUPPORTED_EXT:
                     all_files.append(os.path.join(root, fname))
+                    # Live count update every 250 files so UI doesn't look frozen
+                    if len(all_files) % 250 == 0:
+                        scan_state["message"] = f"Discovering... {len(all_files):,} files found"
+
+            if scan_state["cancel_requested"]:
+                break
 
         scan_state["total"] = len(all_files)
         scan_state["message"] = f"Found {len(all_files):,} files"
diff --git a/templates/index.html b/templates/index.html
index 3d9fb81..3204388 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -212,6 +212,14 @@
     background: var(--accent);
     transition: width .3s;
   }
+  .progress-bar-fill.indeterminate {
+    width: 40% !important;
+    animation: indeterminate 1.4s ease-in-out infinite;
+  }
+  @keyframes indeterminate {
+    0%   { transform: translateX(-100%); }
+    100% { transform: translateX(300%); }
+  }
   .progress-msg { font-size: 12px; color: var(--text-dim); }
   .phase-pills {
     display: flex;
@@ -1057,8 +1065,13 @@ function updateScanUI(s) {
 
   if (isRunning) {
     el('progress-msg').textContent = s.message || '';
-    const pct = s.total > 0 ? Math.round((s.progress / s.total) * 100) : 0;
-    el('progress-fill').style.width = pct + '%';
+    const indeterminate = s.phase === 'discovery' || s.phase === 'takeout' || s.total === 0;
+    const fill = el('progress-fill');
+    fill.classList.toggle('indeterminate', indeterminate);
+    if (!indeterminate) {
+      const pct = Math.round((s.progress / s.total) * 100);
+      fill.style.width = pct + '%';
+    }
     el('progress-count').textContent = s.total > 0 ? `${fmt(s.progress)} / ${fmt(s.total)}` : '';
 
     const phaseIdx = PHASES.indexOf(s.phase);