# Implementation Plan — Test Dashboard

## 1. Overview

A web dashboard that monitors test execution progress by comparing a **target tests directory** (what should run) against a **results directory** (what has run). The backend runs on one machine with access to both directories; the frontend is accessible from any device on the network.

---

## 2. Tech Stack

| Layer | Technology | Rationale |
|---|---|---|
| Frontend | React + Vite (existing) | Already scaffolded |
| Backend | Node.js + Express | Lightweight API + static file serving |
| Real-time | Server-Sent Events (SSE) | Simpler than WebSocket for one-way push |
| Directory watching | chokidar | Cross-platform file system watcher |
| Database | SQLite (via `better-sqlite3`) | Embedded, no separate process, fast reads |
| Frontend state | React Query (TanStack Query) | Cache, refetch, and SSE invalidation |
| UI | TailwindCSS + shadcn/ui | Rapid, consistent component styling |

---

## 3. Project Structure

```
Projects/
├── dashboard/                  ← React frontend (existing)
│   ├── src/
│   │   ├── components/
│   │   │   ├── StatCard.jsx          – metric display card
│   │   │   ├── CompletionBar.jsx     – progress bar with percentage
│   │   │   ├── TestTable.jsx         – filterable test list
│   │   │   ├── FilterPanel.jsx       – tag filter controls
│   │   │   └── TimeDisplay.jsx       – elapsed / estimated time
│   │   ├── hooks/
│   │   │   ├── useTests.js           – fetch + SSE subscription
│   │   │   └── useStats.js           – derived stats from test data
│   │   ├── lib/
│   │   │   └── api.js                – axios/fetch base client
│   │   ├── App.jsx
│   │   └── main.jsx
│   ├── package.json
│   └── vite.config.js                – proxy /api → backend port
│
└── server/                     ← NEW: Node.js backend
    ├── index.js                – Express app entry point
    ├── db.js                   – SQLite schema + query helpers
    ├── watcher.js              – chokidar setup + change handlers
    ├── parser.js               – filename/foldername → tags
    ├── scanner.js              – full directory scan on startup
    ├── sse.js                  – SSE client registry + broadcast
    ├── routes/
    │   ├── tests.js            – GET /api/tests, GET /api/tests/:id
    │   ├── stats.js            – GET /api/stats
    │   ├── config.js           – GET/POST /api/config (directory paths)
    │   ├── browse.js           – GET /api/browse (server-side directory browser)
    │   └── events.js           – GET /api/events (SSE stream)
    ├── package.json
    └── .env                    – TARGET_DIR, RESULTS_DIR, PORT=3001
```

---

## 4. File ID & Tag Parsing

### 4.1 File ID & Completion Matching

A **test is completed** when its **file ID** appears in any result directory name.

**File ID** = the test case code segment extracted from the filename — the segment matching the pattern `R\d+[A-Z0-9]+` (e.g., `R2COERXAC003`, `R5P2PRXAX012`).

**Target files** live inside subdirectories of the target directory. All target files use the prefix `TC_WIFI_` and extension `.ini`. Each parent directory also contains a `GLOBAL.ini` file that must be **skipped** by the scanner:

```
TP_WIFI_ATT_CDR_GRP1_ROT1_CGW452_WNC_REGRESSION/
  GLOBAL.ini                                                              ← skip
  TC_WIFI_COE_CGW452_R2COERXAC003_TPT3E_RSSI70_STA4_2GHZ_CH1_BW20_TCP_MIMOFD_SONFD_MESHFD_LPI_UL.ini
                               ↑
                         test_id = R2COERXAC003
```

Scanner filter: include only files where `filename.startsWith('TC_WIFI_') && filename.endsWith('.ini')`.

**Result directories** live as top-level subdirectories of the results directory. The directory name contains the same file ID:

```
COE_CGW452_R2COERXAC003_TPT3E_RSSI70_STA4_2GHZ_CH1_BW20_TCP_MIMOFD_SONFD_MESHFD_LPI_UL/
                ↑
          test_id = R2COERXAC003
  COE_CGW452_R2COERXAC003_..._2026-05-16-07-30-14  ← target log file (contains test_id in name)
  other_file.txt                                    ← ignored
  ...other files
```

A test is **completed** when a result directory name contains the target's `test_id`.

**Duration per test**: the result directory may contain multiple `.txt` files. Only the `.txt` file(s) whose name includes the `test_id` are scanned. All other `.txt` files are ignored.

Filter: `filename.endsWith('.txt') && filename.includes(test_id)`

Scan the matched file for the line:

```
[2026-05-16 09:21:02,105 INFO] Elapsed time : 1:51:00.660866
```

Regex: `/\[.*?INFO\]\s+Elapsed time\s*:\s*([\d]+:[\d]{2}:[\d]{2}\.[\d]+)/`

The captured group (`1:51:00.660866`) is parsed as `H:MM:SS.microseconds` and converted to total seconds stored in `duration_seconds`. If no matching line is found, `duration_seconds` is left `NULL` and excluded from the elapsed sum and avg calculations.

**Re-runs**: if multiple `.txt` files match the `test_id` filter (re-run logs), use the one with the **latest** timestamp in its filename for both `completed_at` and `duration_seconds`.

### 4.2 Tag Parsing

Tags are parsed from two sources:

**From the parent folder name** (e.g., `TP_WIFI_ATT_CDR_GRP1_ROT1_CGW452_WNC_REGRESSION`):
| Tag | Pattern | Example |
|---|---|---|
| Rotation | `ROT\d+` | `ROT1` |
| Device | `CGW\d+` | `CGW452` |

**From the target filename** (after stripping `TC_WIFI_` prefix and `.ini` extension):
```
COE_CGW452_R2COERXAC003_TPT3E_RSSI70_STA4_2GHZ_CH1_BW20_..._UL
↑
first segment = interference type
```

| Tag | Extraction | Example |
|---|---|---|
| **Interference** | First segment — fixed enum: `COE`, `P2P`, `P3P` | `COE` |
| Device | Regex `CGW\d+` | `CGW452` |
| File ID | Regex `R\d+[A-Z0-9]+` | `R2COERXAC003` |
| Test Point | Regex `TPT\w+` | `TPT3E` |
| RSSI | Regex `RSSI\d+` | `RSSI70` |
| Station | Regex `STA\d+` | `STA4` |
| Band | Regex `\dGHZ` | `2GHZ` |
| Channel | Regex `CH\d+` | `CH1` |
| Bandwidth | Regex `BW\d+` | `BW20` |
| Direction | Last segment — fixed enum: `UL`, `DL`, `BI` | `UL` |

**Completion Timestamp**: extracted from the timestamped result file name inside the matching result directory (e.g., `..._2026-05-16-07-30-14` → `2026-05-16 07:30:14`).

**Interference type** is also validated against the result directory name's first segment (`COE_...`, `P2P_...`, `P3P_...`) as a cross-check.

---

## 5. Database Schema

```sql
-- Stores one row per target test file
CREATE TABLE tests (
  id               TEXT PRIMARY KEY,  -- full derived ID (filename without prefix/ext)
  test_id          TEXT NOT NULL,     -- short test case code, e.g. R2COERXAC003
  parent_dir       TEXT NOT NULL,     -- parent folder name (TP_WIFI_...)
  filename         TEXT NOT NULL,     -- original .ini filename
  completed        INTEGER NOT NULL DEFAULT 0,  -- 0 or 1
  completed_at     TEXT,              -- ISO timestamp from result file name
  duration_seconds REAL,              -- per-test duration in seconds (from result file or fs timestamps)

  -- parsed tags
  interference TEXT,   -- COE | P2P | P3P
  device       TEXT,   -- CGW452 | CGW453
  rotation     TEXT,
  test_point   TEXT,
  station      TEXT,
  band         TEXT,
  channel      TEXT,
  bandwidth    TEXT,
  rssi         TEXT,
  direction    TEXT,

  created_at   TEXT NOT NULL DEFAULT (datetime('now'))
);

-- Stores configuration: directory paths AND manual avg time overrides
CREATE TABLE config (
  key   TEXT PRIMARY KEY,
  value TEXT NOT NULL
);
-- Config keys:
--   target_dir            – path to target tests directory
--   results_dir           – path to results directory
--   avg_time_coe          – manual avg seconds per COE test (NULL = use calculated)
--   avg_time_p2p          – manual avg seconds per P2P test (NULL = use calculated)
--   avg_time_p3p          – manual avg seconds per P3P test (NULL = use calculated)
```

---

## 6. Backend API

### Endpoints

| Method | Path | Description |
|---|---|---|
| `GET` | `/api/tests` | All tests; supports query filters (see below) |
| `GET` | `/api/stats` | Aggregated stats object |
| `GET` | `/api/events` | SSE stream — pushes `update` events on directory change |
| `GET` | `/api/config` | Current directory paths and avg time overrides |
| `POST` | `/api/config` | Set `targetDir`, `resultsDir`, avg time overrides; triggers re-scan |
| `GET` | `/api/browse` | List subdirectories at a given server path (directory picker) |

### `GET /api/tests` Query Parameters

```
?completed=true|false
&interference=COE|P2P|P3P
&device=CGW452
&rotation=ROT1
&testPoint=TPT3E
&station=STA4
&band=2GHZ
&channel=CH1
&bandwidth=BW20
&rssi=RSSI70
&direction=UL
```

### `GET /api/stats` Response Shape

```json
{
  "overall": {
    "total": 200,
    "completed": 120,
    "completionRate": 0.60
  },
  "cgw452": {
    "total": 100,
    "completed": 70,
    "completionRate": 0.70
  },
  "cgw453": {
    "total": 100,
    "completed": 50,
    "completionRate": 0.50
  },
  "timing": {
    "elapsedSeconds": 172800,
    "estimatedRemainingSeconds": 115200,
    "byType": {
      "COE": {
        "avgSeconds": 450,
        "avgSource": "calculated",
        "remaining": 80
      },
      "P2P": {
        "avgSeconds": 300,
        "avgSource": "manual",
        "remaining": 50
      },
      "P3P": {
        "avgSeconds": 600,
        "avgSource": "calculated",
        "remaining": 30
      }
    }
  }
}
```

**Timing logic**:

- `elapsedSeconds` = `SUM(duration_seconds)` for all completed tests (sum of individual test durations, not wall-clock)
- For each interference type (COE, P2P, P3P):
  - `avgSeconds` = `AVG(duration_seconds) WHERE interference = type AND completed = 1`
  - If no completed tests exist for that type, `avgSeconds` = value from `config` table (`avg_time_coe` / `avg_time_p2p` / `avg_time_p3p`); `avgSource` = `"manual"`
  - If a manual override is set in config even when calculated data exists, the manual value takes precedence; `avgSource` = `"manual_override"`
- `estimatedRemainingSeconds` = `(avgCOE × COE_remaining) + (avgP2P × P2P_remaining) + (avgP3P × P3P_remaining)`
- If any type has remaining tests but no avg time (calculated or manual), that type contributes `null` to the sum and the UI flags it as **input required**

### `GET /api/browse` — Directory Browser

Allows the frontend to navigate the server's local filesystem so users can pick directories without typing paths manually.

**Query parameters**:
- `path` (optional) — absolute path to list. If omitted or empty, returns the filesystem roots (e.g., `C:\`, `D:\` on Windows).

**Response**:
```json
{
  "path": "C:\\Tests",
  "parent": "C:\\",
  "dirs": [
    { "name": "Target", "path": "C:\\Tests\\Target" },
    { "name": "Results", "path": "C:\\Tests\\Results" }
  ]
}
```

- Only **directories** are returned (no files).
- Hidden directories (names starting with `.`) are excluded.
- If `path` does not exist or is not a directory, returns `400`.
- `parent` is `null` when already at a filesystem root.

---

## 7. Real-time Updates

- The backend registers an SSE endpoint at `GET /api/events`
- chokidar watches both the target and results directories for `add`, `unlink`, and `change` events
- On any change, the backend re-scans the affected path, updates SQLite, and broadcasts an SSE event: `data: {"type":"update"}`
- The React frontend subscribes to the SSE stream; on receiving an `update` event it invalidates and refetches stats and test list via React Query

**`unlink` handling for result directories**: when chokidar detects that a result directory has been deleted, the corresponding test row is reset — `completed = 0`, `completed_at = NULL`, `duration_seconds = NULL`. This ensures the dashboard always reflects the actual state of the filesystem.

---

## 8. Frontend Components

### 8.1 Layout

```
┌──────────────────────────────────────────────────────────────┐
│  Test Dashboard                          [⟳ Refresh]  [⚙ Settings] │
├──────────┬──────────┬──────────┬────────────┬───────────────┤
│ Overall  │ CGW452   │ CGW453   │ Time       │ Est. Remaining │
│ 60%      │ 70%      │ 50%      │ Elapsed    │               │
│ 120/200  │ 70/100   │ 50/100   │ 48h 0m     │ 32h 0m        │
├──────────┴──────────┴──────────┴────────────┴───────────────┤
│ ⚠ No P2P results yet — avg time required for estimate        │
│    COE avg: 7m 30s (calc)  P2P avg: [___] min  P3P avg: 10m │
├──────────────────────────────────────────────────────────────┤
│ [Completed ▾] [Interference ▾] [Device ▾] [Band ▾] ...      │
├──────────────────────────────────────────────────────────────┤
│ File ID     │ Type │ Device │ Rotation │ TP   │ ... │ Status │
│ R2COERXAC003│ COE  │ CGW452 │ ROT1     │ TPT3E│ ... │ ✓      │
│ R5P2PRXAX012│ P2P  │ CGW452 │ ROT1     │ TPT1C│ ... │ ○      │
└──────────────────────────────────────────────────────────────┘
```

**Inline avg-time input**: When a type has remaining tests but zero completed, a warning banner appears with inline input fields for the missing avg time(s). Submitting saves to `POST /api/config` and immediately recalculates the estimate.

### 8.2 Component Breakdown

| Component | Responsibility |
|---|---|
| `StatCard` | Displays a metric (label, value, sub-value); used for completion rate + counts |
| `CompletionBar` | Progress bar with percentage label |
| `TimeDisplay` | Formats seconds into `Xh Ym`; shows elapsed and estimated remaining |
| `AvgTimeWarning` | Banner shown when a type has remaining tests but no avg time; contains inline inputs |
| `FilterPanel` | Dropdown filters for each tag including Interference; maintains filter state |
| `TestTable` | Virtualized (react-window) table of tests; columns sortable; File ID as primary ID column |
| `ConfigModal` | Form for directory paths (with picker button) + manual avg time overrides per type |
| `DirectoryBrowser` | Inline folder picker inside `ConfigModal`; navigates the server filesystem via `/api/browse` |
| `StatusBadge` | Green checkmark or grey circle for completed/pending |

### 8.3 Settings / Config

A gear icon opens `ConfigModal` with two sections:

1. **Directories** — target and results directory paths. Each path field has a **Browse** button that opens the `DirectoryBrowser`:
   - Starts at the filesystem root (lists available drives on Windows)
   - Displays current path as a clickable breadcrumb
   - Lists subdirectories; clicking one navigates into it
   - **Select This Folder** button confirms the selection and populates the path field
   - **Cancel** closes the browser without changing the field
   - On save, triggers a full re-scan and re-watch
2. **Avg Time Overrides** — three number inputs (COE, P2P, P3P) in minutes. Each shows:
   - The calculated average from completed tests (if any), labelled `Auto: 7m 30s`
   - A manual override field; when filled, it takes precedence over the calculated value
   - Clear button to remove the override and revert to calculated
   - If no completed tests exist for a type, the field is highlighted with a required indicator

All config values are POSTed to `POST /api/config` as key/value pairs and persisted in SQLite.

---

## 9. Vite Proxy Configuration

`vite.config.js` is updated to proxy all `/api` requests to the backend, so the React dev server and production build do not need CORS configuration:

```js
// vite.config.js
server: {
  proxy: {
    '/api': 'http://localhost:3001'
  }
}
```

In production, Express serves the built React `dist/` as static files.

---

## 10. Implementation Phases

### Phase 1 — Backend Foundation
1. Initialize `server/package.json`; install `express`, `better-sqlite3`, `chokidar`, `dotenv`
2. Implement `db.js` — create schema, upsert helpers
3. Implement `parser.js` — regex-based tag extraction from filenames and folder names
4. Implement `scanner.js` — walk target dir to build test list; walk results dir to mark completions
5. Implement `watcher.js` — chokidar watchers for both directories; call scanner on change
6. Implement `sse.js` — maintain SSE client set; broadcast on update
7. Wire up Express routes and start server

### Phase 2 — Frontend Core
1. Update `vite.config.js` with API proxy
2. Install `@tanstack/react-query`, `axios`, `tailwindcss`, `lucide-react`
3. Build `api.js` — base fetch helpers + SSE subscription hook
4. Build `useTests` and `useStats` hooks
5. Build `StatCard`, `CompletionBar`, `TimeDisplay`, `StatusBadge`
6. Build `App.jsx` layout with stats row

### Phase 3 — Test List & Filters
1. Build `FilterPanel` with controlled filter state
2. Build `TestTable` with all columns + sort
3. Wire filters to `GET /api/tests` query params
4. Add `ConfigModal` for directory path configuration

### Phase 4 — Real-time & Polish
1. Connect SSE stream in `useTests` / `useStats` to auto-invalidate queries
2. Add manual refresh button
3. Add loading skeletons and error states
4. Mobile-responsive layout adjustments
5. Test on secondary device over local network

### Phase 5 — SSO (Future)
- Add authentication middleware to the Express server (e.g., `passport.js` with an OAuth/OIDC provider)
- Protect all `/api` routes and the static frontend behind the auth middleware
- Add session management (`express-session` + a session store)

---

## 11. Key Dependencies

### Server (`server/package.json`)
```json
{
  "dependencies": {
    "better-sqlite3": "^9.x",
    "chokidar": "^4.x",
    "cors": "^2.x",
    "dotenv": "^16.x",
    "express": "^4.x"
  }
}
```

### Client (`dashboard/package.json` additions)
```json
{
  "dependencies": {
    "@tanstack/react-query": "^5.x",
    "axios": "^1.x",
    "lucide-react": "^0.x",
    "tailwindcss": "^4.x"
  }
}
```

---

## 12. Resolved Design Decisions

| # | Decision |
|---|---|
| 1 | Target prefix is always `TC_WIFI_`, extension always `.ini`. `GLOBAL.ini` present in each parent directory is skipped by the scanner. |
| 2 | Interference types are a fixed enum: `COE`, `P2P`, `P3P`. |
| 3 | Duration parsed from result `.txt` log line `[... INFO] Elapsed time : H:MM:SS.ffffff`. Tests with no parseable line excluded from avg/sum. |
| 4 | If multiple result log files exist in a result directory (re-run), use the file with the **latest** timestamp in its name. |
| 5 | Backend runs on port **3001**. |
| 6 | When a result directory is deleted, the matching test is reset to pending (`completed=0`, `completed_at=NULL`, `duration_seconds=NULL`). |
