Fix formatting

SESSION_NOTES.md

@@ -0,0 +1,152 @@
+# NORA Development Session Notes
+
+---
+
+## 2026-01-26 - Dashboard Expansion
+
+### Iteration 1: Planning & Exploration
+- Received detailed implementation plan for dashboard expansion
+- Explored codebase structure using Task agent
+- Identified key files to modify:
+  - `main.rs` - AppState
+  - `ui/api.rs`, `ui/mod.rs`, `ui/components.rs`, `ui/templates.rs`
+  - `registry/docker.rs`, `npm.rs`, `maven.rs`, `cargo_registry.rs`
+
+### Iteration 2: Infrastructure (Phase 1)
+- Created `src/dashboard_metrics.rs`:
+  - `DashboardMetrics` struct with AtomicU64 counters
+  - Per-registry tracking (docker, npm, maven, cargo, pypi)
+  - `record_download()`, `record_upload()`, `record_cache_hit/miss()`
+  - `cache_hit_rate()` calculation
+
+- Created `src/activity_log.rs`:
+  - `ActionType` enum: Pull, Push, CacheHit, ProxyFetch
+  - `ActivityEntry` struct with timestamp, action, artifact, registry, source
+  - `ActivityLog` with RwLock<VecDeque> (bounded to 50 entries)
+
+### Iteration 3: AppState Update (Phase 2)
+- Updated `main.rs`:
+  - Added `mod activity_log` and `mod dashboard_metrics`
+  - Extended `AppState` with `metrics: DashboardMetrics` and `activity: ActivityLog`
+  - Initialized in `run_server()`
+
+### Iteration 4: API Endpoint (Phase 3)
+- Updated `ui/api.rs`:
+  - Added structs: `DashboardResponse`, `GlobalStats`, `RegistryCardStats`, `MountPoint`
+  - Implemented `api_dashboard()` - aggregates all metrics, storage stats, activity
+
+- Updated `ui/mod.rs`:
+  - Added route `/api/ui/dashboard`
+  - Modified `dashboard()` handler to use new response
+
+### Iteration 5: Dark Theme UI (Phase 4)
+- Updated `ui/components.rs` with ~400 new lines:
+  - `layout_dark()` - dark theme wrapper (#0f172a background)
+  - `sidebar_dark()`, `header_dark()` - dark theme navigation
+  - `render_global_stats()` - 5-column stats grid
+  - `render_registry_card()` - extended card with metrics
+  - `render_mount_points_table()` - registry paths and proxies
+  - `render_activity_row()`, `render_activity_log()` - activity display
+  - `render_polling_script()` - 5-second auto-refresh JS
+
+### Iteration 6: Dashboard Template (Phase 5)
+- Updated `ui/templates.rs`:
+  - Refactored `render_dashboard()` to accept `DashboardResponse`
+  - Added uptime display, global stats, registry cards grid
+  - Added mount points table and activity log
+  - Added `format_relative_time()` helper
+
+### Iteration 7: Registry Instrumentation (Phase 6)
+- `registry/docker.rs`:
+  - `download_blob()` - record download + cache hit + activity
+  - `get_manifest()` - record download + cache hit + activity
+  - `upload_blob()` - record upload + activity
+  - `put_manifest()` - record upload + activity
+
+- `registry/npm.rs`:
+  - Cache hit tracking for local storage
+  - Cache miss + proxy fetch tracking
+
+- `registry/maven.rs`:
+  - `download()` - cache hit/miss + activity
+  - `upload()` - record upload + activity
+
+- `registry/cargo_registry.rs`:
+  - `download()` - record download + activity
+
+### Iteration 8: Build & Test
+- `cargo build` - compiled successfully with minor warnings
+- Fixed warnings:
+  - Removed unused `RegistryStats` import
+  - Added `#[allow(dead_code)]` to `stat_card()`
+- `cargo test` - all 75 tests passed
+
+### Iteration 9: Server Testing
+- Started server: `cargo run --release --bin nora`
+- Tested endpoints:
+  ```
+  GET /health - OK
+  GET /api/ui/dashboard - returns full metrics JSON
+  GET /ui/ - dark theme dashboard HTML
+  GET /v2/test/manifests/v1 - triggered Docker metrics
+  GET /npm/lodash/-/lodash-4.17.21.tgz - triggered npm proxy metrics
+  ```
+- Verified metrics tracking:
+  - Downloads: 3 (2 Docker + 1 npm)
+  - Cache hit rate: 66.67%
+  - Activity log populated with Pull, ProxyFetch events
+
+### Iteration 10: Git Commit & Push
+- Staged 11 files (2 new, 9 modified)
+- Commit: `93f9655 Add dashboard metrics, activity log, and dark theme`
+- Pushed to `origin/main`
+
+### Iteration 11: Documentation
+- Updated `TODO.md` with v0.2.1 section
+- Created this `SESSION_NOTES.md`
+
+---
+
+### Key Decisions Made
+1. **In-memory metrics** - AtomicU64 for thread-safety, reset on restart
+2. **Bounded activity log** - 50 entries max, oldest evicted
+3. **Polling over WebSocket** - simpler, 5-second interval sufficient
+4. **Dark theme only for dashboard** - registry list pages keep light theme
+
+### Files Changed Summary
+```
+New:
+  nora-registry/src/activity_log.rs
+  nora-registry/src/dashboard_metrics.rs
+
+Modified:
+  nora-registry/src/main.rs                    (+8 lines)
+  nora-registry/src/registry/cargo_registry.rs (+13 lines)
+  nora-registry/src/registry/docker.rs         (+47 lines)
+  nora-registry/src/registry/maven.rs          (+36 lines)
+  nora-registry/src/registry/npm.rs            (+29 lines)
+  nora-registry/src/ui/api.rs                  (+154 lines)
+  nora-registry/src/ui/components.rs           (+394 lines)
+  nora-registry/src/ui/mod.rs                  (+5 lines)
+  nora-registry/src/ui/templates.rs            (+180/-79 lines)
+
+Total: ~1004 insertions, 79 deletions
+```
+
+### Useful Commands
+```bash
+# Start server
+cargo run --release --bin nora
+
+# Test dashboard
+curl http://127.0.0.1:4000/api/ui/dashboard
+
+# View UI
+open http://127.0.0.1:4000/ui/
+
+# Trigger metrics
+curl http://127.0.0.1:4000/v2/test/manifests/v1
+curl http://127.0.0.1:4000/npm/lodash/-/lodash-4.17.21.tgz -o /dev/null
+```
+
+---

TODO.md

@@ -11,6 +11,69 @@
 
 ---
 
+## v0.2.1 - Dashboard Expansion (2026-01-26) - DONE
+
+### Commit: 93f9655
+
+### New Files
+- `nora-registry/src/dashboard_metrics.rs` - AtomicU64 counters for metrics
+- `nora-registry/src/activity_log.rs` - Bounded activity log (50 entries)
+
+### Modified Files
+- `nora-registry/src/main.rs` - Added modules, updated AppState
+- `nora-registry/src/ui/api.rs` - Added DashboardResponse, api_dashboard()
+- `nora-registry/src/ui/mod.rs` - Added /api/ui/dashboard route
+- `nora-registry/src/ui/components.rs` - Dark theme components
+- `nora-registry/src/ui/templates.rs` - New render_dashboard()
+- `nora-registry/src/registry/docker.rs` - Instrumented handlers
+- `nora-registry/src/registry/npm.rs` - Instrumented with cache tracking
+- `nora-registry/src/registry/maven.rs` - Instrumented download/upload
+- `nora-registry/src/registry/cargo_registry.rs` - Instrumented download
+
+### Features Implemented
+- [x] Global stats panel (downloads, uploads, artifacts, cache hit %, storage)
+- [x] Per-registry metrics (Docker, Maven, npm, Cargo, PyPI)
+- [x] Mount points table with proxy upstreams
+- [x] Activity log (last 20 events)
+- [x] Dark theme (#0f172a background, #1e293b cards)
+- [x] Auto-refresh polling (5 seconds)
+- [x] Cache hit/miss tracking
+
+### API Endpoints
+- `GET /api/ui/dashboard` - Full dashboard data as JSON
+
+### Dark Theme Colors
+```
+Background: #0f172a (slate-950)
+Cards: #1e293b (slate-800)
+Borders: slate-700
+Text primary: slate-200
+Text secondary: slate-400
+Accent: blue-400
+```
+
+### Testing Commands
+```bash
+# Test dashboard API
+curl http://127.0.0.1:4000/api/ui/dashboard
+
+# Test Docker pull (triggers metrics)
+curl http://127.0.0.1:4000/v2/test/manifests/v1
+
+# Test npm proxy (triggers cache miss)
+curl http://127.0.0.1:4000/npm/lodash/-/lodash-4.17.21.tgz -o /dev/null
+```
+
+### Future Improvements (Dashboard)
+- [ ] Add PyPI download instrumentation
+- [ ] Persist metrics to disk (currently reset on restart)
+- [ ] Add WebSocket for real-time updates (instead of polling)
+- [ ] Add graphs/charts for metrics over time
+- [ ] Add user/client tracking in activity log
+- [ ] Dark/light theme toggle
+
+---
+
 ## v0.3.0 - OIDC / Workload Identity Federation
 
 ### Killer Feature: OIDC for CI/CD

nora-registry/src/activity_log.rs

@@ -71,12 +71,7 @@ impl ActivityLog {
     /// Get the most recent N entries (newest first)
     pub fn recent(&self, count: usize) -> Vec<ActivityEntry> {
         let entries = self.entries.read();
-        entries
-            .iter()
-            .rev()
-            .take(count)
-            .cloned()
-            .collect()
+        entries.iter().rev().take(count).cloned().collect()
     }
 
     /// Get all entries (newest first)

nora-registry/src/registry/maven.rs

@@ -21,7 +21,15 @@ async fn download(State(state): State<Arc<AppState>>, Path(path): Path<String>)
     let key = format!("maven/{}", path);
 
     // Extract artifact name for logging (last 2-3 path components)
-    let artifact_name = path.split('/').rev().take(3).collect::<Vec<_>>().into_iter().rev().collect::<Vec<_>>().join("/");
+    let artifact_name = path
+        .split('/')
+        .rev()
+        .take(3)
+        .collect::<Vec<_>>()
+        .into_iter()
+        .rev()
+        .collect::<Vec<_>>()
+        .join("/");
 
     // Try local storage first
     if let Ok(data) = state.storage.get(&key).await {
@@ -76,7 +84,15 @@ async fn upload(
     let key = format!("maven/{}", path);
 
     // Extract artifact name for logging
-    let artifact_name = path.split('/').rev().take(3).collect::<Vec<_>>().into_iter().rev().collect::<Vec<_>>().join("/");
+    let artifact_name = path
+        .split('/')
+        .rev()
+        .take(3)
+        .collect::<Vec<_>>()
+        .into_iter()
+        .rev()
+        .collect::<Vec<_>>()
+        .join("/");
 
     match state.storage.put(&key, &body).await {
         Ok(()) => {

nora-registry/src/ui/api.rs

@@ -139,8 +139,11 @@ pub async fn api_dashboard(State(state): State<Arc<AppState>>) -> Json<Dashboard
         }
     }
 
-    let total_artifacts = registry_stats.docker + registry_stats.maven +
-                          registry_stats.npm + registry_stats.cargo + registry_stats.pypi;
+    let total_artifacts = registry_stats.docker
+        + registry_stats.maven
+        + registry_stats.npm
+        + registry_stats.cargo
+        + registry_stats.pypi;
 
     let global_stats = GlobalStats {
         downloads: state.metrics.downloads.load(Ordering::Relaxed),

nora-registry/src/ui/components.rs

@@ -61,7 +61,12 @@ pub fn layout(title: &str, content: &str, active_page: Option<&str>) -> String {
 }
 
 /// Dark theme layout wrapper for dashboard
-pub fn layout_dark(title: &str, content: &str, active_page: Option<&str>, extra_scripts: &str) -> String {
+pub fn layout_dark(
+    title: &str,
+    content: &str,
+    active_page: Option<&str>,
+    extra_scripts: &str,
+) -> String {
     format!(
         r##"<!DOCTYPE html>
 <html lang="en">
@@ -238,7 +243,13 @@ fn header_dark() -> String {
 }
 
 /// Render global stats row (5-column grid)
-pub fn render_global_stats(downloads: u64, uploads: u64, artifacts: u64, cache_hit_percent: f64, storage_bytes: u64) -> String {
+pub fn render_global_stats(
+    downloads: u64,
+    uploads: u64,
+    artifacts: u64,
+    cache_hit_percent: f64,
+    storage_bytes: u64,
+) -> String {
     format!(
         r##"
         <div class="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-5 gap-4 mb-6">
@@ -273,7 +284,15 @@ pub fn render_global_stats(downloads: u64, uploads: u64, artifacts: u64, cache_h
 }
 
 /// Render registry card with extended metrics
-pub fn render_registry_card(name: &str, icon_path: &str, artifact_count: usize, downloads: u64, uploads: u64, size_bytes: u64, href: &str) -> String {
+pub fn render_registry_card(
+    name: &str,
+    icon_path: &str,
+    artifact_count: usize,
+    downloads: u64,
+    uploads: u64,
+    size_bytes: u64,
+    href: &str,
+) -> String {
     format!(
         r##"
         <a href="{}" id="registry-{}" class="block bg-[#1e293b] rounded-lg border border-slate-700 p-4 md:p-6 hover:border-blue-400 transition-all">
@@ -359,7 +378,13 @@ pub fn render_mount_points_table(mount_points: &[(String, String, Option<String>
 }
 
 /// Render a single activity log row
-pub fn render_activity_row(timestamp: &str, action: &str, artifact: &str, registry: &str, source: &str) -> String {
+pub fn render_activity_row(
+    timestamp: &str,
+    action: &str,
+    artifact: &str,
+    registry: &str,
+    source: &str,
+) -> String {
     let action_color = match action {
         "PULL" => "text-blue-400",
         "PUSH" => "text-green-400",
@@ -378,7 +403,12 @@ pub fn render_activity_row(timestamp: &str, action: &str, artifact: &str, regist
             <td class="py-2 text-slate-500">{}</td>
         </tr>
         "##,
-        timestamp, action_color, action, html_escape(artifact), registry, source
+        timestamp,
+        action_color,
+        action,
+        html_escape(artifact),
+        registry,
+        source
     )
 }
 

nora-registry/src/ui/templates.rs

@@ -13,7 +13,10 @@ pub fn render_dashboard(data: &DashboardResponse) -> String {
     );
 
     // Render registry cards
-    let registry_cards: String = data.registry_stats.iter().map(|r| {
+    let registry_cards: String = data
+        .registry_stats
+        .iter()
+        .map(|r| {
             let icon = match r.name.as_str() {
                 "docker" => icons::DOCKER,
                 "maven" => icons::MAVEN,
@@ -39,11 +42,20 @@ pub fn render_dashboard(data: &DashboardResponse) -> String {
                 r.size_bytes,
                 &format!("/ui/{}", r.name),
             )
-    }).collect();
+        })
+        .collect();
 
     // Render mount points
-    let mount_data: Vec<(String, String, Option<String>)> = data.mount_points.iter()
-        .map(|m| (m.registry.clone(), m.mount_path.clone(), m.proxy_upstream.clone()))
+    let mount_data: Vec<(String, String, Option<String>)> = data
+        .mount_points
+        .iter()
+        .map(|m| {
+            (
+                m.registry.clone(),
+                m.mount_path.clone(),
+                m.proxy_upstream.clone(),
+            )
+        })
         .collect();
     let mount_points = render_mount_points_table(&mount_data);
 
@@ -51,7 +63,9 @@ pub fn render_dashboard(data: &DashboardResponse) -> String {
     let activity_rows: String = if data.activity.is_empty() {
         r##"<tr><td colspan="5" class="py-8 text-center text-slate-500">No recent activity</td></tr>"##.to_string()
     } else {
-        data.activity.iter().map(|entry| {
+        data.activity
+            .iter()
+            .map(|entry| {
                 let time_ago = format_relative_time(&entry.timestamp);
                 render_activity_row(
                     &time_ago,
@@ -60,7 +74,8 @@ pub fn render_dashboard(data: &DashboardResponse) -> String {
                     &entry.registry,
                     &entry.source,
                 )
-        }).collect()
+            })
+            .collect()
     };
     let activity_log = render_activity_log(&activity_rows);
 
@@ -95,11 +110,7 @@ pub fn render_dashboard(data: &DashboardResponse) -> String {
             {}
         </div>
     "##,
-        uptime_str,
-        global_stats,
-        registry_cards,
-        mount_points,
-        activity_log,
+        uptime_str, global_stats, registry_cards, mount_points, activity_log,
     );
 
     let polling_script = render_polling_script();