# Walkthrough — Root Route Bootstrap (DEV PATCH-002)

This walkthrough documents the design, changes, and verification results for `DEV PATCH-002` (Root Route Bootstrap).

The changes allow visitors requesting the root URL `/` to be dynamically redirected to `/login` using the existing, dynamic base-path aware redirect mechanism.

## Files Modified

* **[routes/public.php](file:///c:/xampp/htdocs/inveetaire/routes/public.php)**

---

## Root Route Implementation

A new inline controller `RootRedirectController` is declared directly inside the global route registration file `routes/public.php`. It extends the base controller and uses its dynamic redirection mechanism to guide the visitor to `/login`:

```php
// ── Root Redirect Route (DEV PATCH-002) ────────────────────────────────────────
class RootRedirectController extends \App\Core\BaseController
{
    public function index(\App\Core\Request $request): void
    {
        $this->redirect('/login');
    }
}

$router->get('/', 'RootRedirectController@index');
```

---

## Redirect Workflow

```mermaid
sequenceDiagram
    actor Guest as Client Browser
    participant Router as App Router
    participant Controller as RootRedirectController
    participant BaseController as BaseController
    
    Guest->>Router: GET / (or GET /inveetaire/)
    Router->>Controller: Match GET / and dispatch
    Controller->>BaseController: redirect('/login')
    Note over BaseController: Resolves url('/login') -> dynamically prefixes base path
    BaseController-->>Guest: 302 Found (Location: /inveetaire/login)
```

---

## Verification Results

### 1. Automated Tests
We created and executed `scratch/test_dev_patch_002.php` using the XAMPP FCGI binary `php-cgi.exe` to simulate incoming web server requests:
* **Subfolder Redirection:** `GET /inveetaire/` -> returns `Status: 302` and `Location: http://localhost/inveetaire/login` (PASS)
* **Root Redirection:** `GET /` -> returns `Status: 302` and `Location: http://localhost/login` (PASS)
* **Redirect Loop Prevention:** `GET /inveetaire/login` -> does not redirect (PASS)
* **Fallback 404 Resolution:** `GET /inveetaire/unknown-path` -> returns `Status: 404` (PASS)

```
✅ PASS: GET / in subfolder redirects to /login
✅ PASS: GET / in production root redirects to /login
✅ PASS: GET /login does not redirect (no redirect loops)
✅ PASS: GET /unknown-path still returns 404
```

### 2. Manual Visual Verification
Successfully verified in the browser that navigating to `http://localhost/inveetaire/` correctly redirects to `http://localhost/inveetaire/login` with zero console errors or style breakages.

![Inveetaire Redirect Screenshot](/C:/Users/FRIDAY/.gemini/antigravity-ide/brain/683d119e-c9e9-4401-9014-2c9ba929f0e4/login_page_redirect_1783322711620.png)

![Inveetaire Redirect Verification Session Video](/C:/Users/FRIDAY/.gemini/antigravity-ide/brain/683d119e-c9e9-4401-9014-2c9ba929f0e4/verify_root_redirect_1783322696690.webp)

---

## Acceptance Checklist

* **[x] Root route exists:** Handled via inline `RootRedirectController` registration.
* **[x] Root redirects correctly:** Confirmed via CGI response status and browser check.
* **[x] Redirect works in localhost subfolder:** Prefix resolved dynamically.
* **[x] Redirect works in production root:** Resolved cleanly to root directory.
* **[x] No redirect loops:** Authenticated paths and `/login` load directly without circular loops.
* **[x] Existing routes unchanged:** Routing patterns remain unaffected.
* **[x] PHP syntax passes:** Lint verification passed.
