# Walkthrough - Authentication & RBAC Implementation (TASK-FE-002)

**Goal:** Implement robust Authentication UI, Role-Based Access Control (RBAC) helpers, and polish the Login experience.

## ✅ Changes Implemented

### 1. State Management (Auth Store)
Created `frontend/lib/stores/auth-store.ts` using **Zustand**.
- Manages `user`, `token`, and `isAuthenticated` state.
- Provides `hasPermission()` and `hasRole()` helpers.
- Uses `persist` middleware to save state to LocalStorage.

### 2. RBAC Component (`<Can />`)
Created `frontend/components/common/can.tsx`.
- Conditionally renders children based on permissions.
- **Usage:**
  ```tsx
  <Can permission="document:create">
    <Button>Create Document</Button>
  </Can>
  ```

### 3. Login Page Polish
Refactored `frontend/app/(auth)/login/page.tsx`.
- **Removed** inline error alerts.
- **Added** `sonner` Toasts for success/error messages.
- Improved UX with clear loading states and feedback.

### 4. Global Toaster
- Installed `sonner` and `next-themes`.
- Created `frontend/components/ui/sonner.tsx` (Shadcn/UI wrapper).
- Added `<Toaster />` to `frontend/app/layout.tsx`.

### 5. Session Sync (`AuthSync`)
Created `frontend/components/auth/auth-sync.tsx`.
- Listens to NextAuth session changes.
- Updates Zustand `auth-store` automatically.
- Ensures `useAuthStore` is always in sync with server session.

## 🧪 Verification Steps

1.  **Session Sync Test:**
    - Login to the app.
    - Go to `/dashboard/can`.
    - Verify "Current User Info" shows your username and role (NOT "Not logged in").

2.  **Toast Test:**
    - On `/dashboard/can`, click "Trigger Success Toast".
    - Verify a green success toast appears.
    - Click "Trigger Error Toast".
    - Verify a red error toast appears.

3.  **Permission Test:**
    - Go to `/login`.
    - Try invalid password -> Expect **Toast Error**.
    - Try valid password -> Expect **Toast Success** and redirect.
2.  **Permission Test:**
    - Use the `<Can />` component in any page.
    - `useAuthStore.getState().setAuth(...)` with a user role.
    - Verify elements show/hide correctly.

## 📸 Screenshots
*(No visual artifacts generated in this session, please run locally to verify UI)*

# Correspondence Module Integration (TASK-FE-004)

**Status:** ✅ Completed
**Date:** 2025-12-07

## 🚀 Changes Implemented

### 1. Service Layer & API
- **Removed:** `frontend/lib/api/correspondences.ts` (Mock API)
- **Updated:** `frontend/lib/services/master-data.service.ts` to include `getOrganizations`
- **Verified:** `frontend/lib/services/correspondence.service.ts` uses `apiClient` correctly.

### 2. State Management (TanStack Query)
- **Created:** `frontend/hooks/use-correspondence.ts`
  - `useCorrespondences`: Fetch list with pagination
  - `useCreateCorrespondence`: Mutation for creation
- **Created:** `frontend/hooks/use-master-data.ts`
  - `useOrganizations`: Fetch master data for dropdowns

### 3. UI Components
- **List Page:** Converted to Client Component using `useCorrespondences`.
- **Create Form:** Integrated `useCreateCorrespondence` and `useOrganizations` for real data submission and dynamic dropdowns.

## 🧪 Verification Steps (Manual)

### 1. Verify API Connection
- Ensure Backend is running.
- Go to `/correspondences`.
- Check Network Tab: Request to `GET /api/correspondences` should appear.

### 2. Verify Master Data
- Go to `/correspondences/new`.
- Check "From/To Organization" dropdowns.
- They should populate from `GET /api/organizations`.

### 3. Verify Create Workflow
- Fill form and Submit.
- Toast success should appear.
- Redirect to list page.
- New item should appear (if `invalidateQueries` worked).

# RFA Module Integration (TASK-FE-006)

**Status:** ✅ Completed
**Date:** 2025-12-07

## 🚀 Changes Implemented

### 1. Service Layer & API
- **Removed:** `frontend/lib/api/rfas.ts` (Mock API)
- **Updated:** `frontend/lib/services/master-data.service.ts` to include `getDisciplines`.

### 2. State Management (TanStack Query)
- **Created:** `frontend/hooks/use-rfa.ts`
  - `useRFAs`, `useRFA`, `useCreateRFA`, `useProcessRFA`.
- **Updated:** `frontend/hooks/use-master-data.ts` to include `useDisciplines`.

### 3. UI Components
- **List Page (`/rfas/page.tsx`):** Converted to Client Component using `useRFAs`.
- **Create Form:** Uses `useCreateRFA` and `useDisciplines`.
- **Detail View:** Uses `useRFA` and `useProcessRFA` (for Approve/Reject).
- **Hooks:** All forms now submit real data via `rfaService`.

## 🧪 Verification Steps (Manual)

### 1. RFA List
- Go to `/rfas`.
- Pagination and List should load from Backend.

### 2. Create RFA
- Go to `/rfas/new`.
- "Discipline" dropdown should load real data.
- "Contract" defaults to ID 1 (mock/placeholder in code).
- Fill items and Submit. Success Toast should appear.

### 3. Workflow Action
- Open an RFA Detail (`/rfas/1`).
- Click "Approve" or "Reject".
- Dialog appears, enter comment, confirm.
- Status badge should update after refresh/invalidation.

# Search Module Integration (TASK-FE-008)

**Status:** ✅ Completed
**Date:** 2025-12-07

## 🚀 Changes Implemented

### 1. Service Layer & API
- **Removed:** `frontend/lib/api/search.ts` (Mock API)
- **Updated:** `frontend/lib/services/search.service.ts` to include `suggest` (via `search` endpoint with limit).

### 2. Custom Hooks
- **Created:** `frontend/hooks/use-search.ts`
  - `useSearch`: For full search results with caching.
  - `useSearchSuggestions`: For autocomplete in global search.

### 3. UI Components
- **Global Search:** Connected to `useSearchSuggestions`. Shows real-time results from backend.
- **Search Page:** Connected to `useSearch`. Supports filtering (Type, Status) via API parameters.

## 🧪 Verification Steps (Manual)

### 1. Global Search
- Type a keyword in the top header search bar (e.g., "test" or "LCBP3").
- Suggestions should dropdown after 300ms debounce.
- Clicking a suggestion should navigate to Detail page.

### 2. Advanced Search
- Press Enter in Global Search or go to `/search?q=...`.
- Results list should appear.
- Apply "Document Type" filter (e.g., RFA).
- List should refresh with filtered results.

# Drawing Module Integration (TASK-FE-007)

**Status:** ✅ Completed
**Date:** 2025-12-07

## 🚀 Changes Implemented

### 1. Service Layer & API
- **Removed:** `frontend/lib/api/drawings.ts` (Mock API)
- **Verified:** `contract-drawing.service.ts` and `shop-drawing.service.ts` are active.

### 2. Custom Hooks
- **Created:** `frontend/hooks/use-drawing.ts`
  - `useDrawings(type)`: Unified hook that switches logic based on `CONTRACT` or `SHOP` type.
  - `useCreateDrawing(type)`: Unified mutation for uploading drawings.

### 3. UI Components
- **Drawing List:** Uses `useDrawings` to fetch real data. Supports switching tabs (Contract vs Shop).
- **Upload Form:** Uses `useCreateDrawing` and `useDisciplines` (from master data). Handles file selection.

## 🧪 Verification Steps (Manual)

### 1. Drawing List
- Go to `/drawings`.
- Switch between "Contract Drawings" and "Shop Drawings" tabs.
- Ensure correct data (or empty state) loads for each.

### 2. Upload Drawing
- Click "Upload Drawing".
- Select "Contract Drawing".
- Fill in required fields (Discipline must load from API).
- Attach a PDF/DWG file.
- Submit.
- Verify redirection to list and new item appears.

# Dashboard & Notifications (TASK-FE-009)

**Status:** ✅ Completed
**Date:** 2025-12-07

## 🚀 Changes Implemented

### 1. Services & Hooks
- **Created:** `dashboard.service.ts` and `notification.service.ts`.
- **Created:** `use-dashboard.ts` (Stats, Activity, Pending) and `use-notification.ts` (Unread, MarkRead).

### 2. UI Updates
- **Dashboard Page:** Converted to Client Component to use parallel querying hooks.
- **Widgets:** `StatsCards`, `RecentActivity`, `PendingTasks` updated to accept `isLoading` props and show skeletons.
- **Notifications:** Dropdown now fetches real unread count and marks as read on click.

## 🧪 Verification Steps (Manual)

### 1. Dashboard
- Navigate to `/dashboard` (or root `/`).
- Verify Stats, Activity, and Tasks load (skeletons show briefly).
- Check data accuracy against backend state.

### 2. Notifications
- Check the Bell icon in the top bar.
- Badge should show unread count (if any).
- Click to open dropdown -> list should load.
- Click an item -> should mark as read (decrease count) and navigate.

# Admin Panel (TASK-FE-010)

**Status:** ✅ Completed (90%)
**Date:** 2025-12-07

## 🚀 Changes Implemented

### 1. Routes & Layout
- **Route Group:** `app/(admin)` for isolated admin context.
- **Layout:** `AdminLayout` enforces Role Check (server-side).
- **Sidebar:** `AdminSidebar` for navigation (Users, Logs, Settings).

### 2. User Management
- **Page:** `/admin/users` lists all users with filtering.
- **Features:** Create, Edit, Delete (Soft), Role Assignment.
- **Components:** `UserDialog` handles form with validation.

### 3. Audit Logs
- **Page:** `/admin/audit-logs` shows system activity.

## 🧪 Verification Steps (Manual)

### 1. Access Control
- Login as non-admin -> Try `/admin/users` -> Should redirect to home.
- Login as Admin -> Should access.

### 2. User CRUD
- Go to `/admin/users`.
- Add User "Test Admin". Assign "ADMIN" role.
- Edit User.
- Delete User.

### 3. Audit Logs
- Perform actions.
- Go to `/admin/audit-logs`.
- Verify new logs appear.