# Courier Settings Implementation

## Overview
Complete implementation of courier settings with proper connection testing flow for Steadfast, Pathao, and RedX courier services.

## Implementation Details

### Backend (CourierController)

#### Controller Methods
1. **index()** - Fetches all courier settings and passes to view
2. **testSteadfast()** - Tests Steadfast API connection and retrieves balance
3. **testPathao()** - Tests Pathao API connection and retrieves stores
4. **testRedX()** - Tests RedX API connection and retrieves stores
5. **savePathaoStore()** - Saves selected Pathao store as primary
6. **saveRedXStore()** - Saves selected RedX store as primary

#### Routes
```php
// Steadfast
POST /admin/couriers/steadfast/test
// Pathao
POST /admin/couriers/pathao/test
POST /admin/couriers/pathao/save-store
// RedX
POST /admin/couriers/redx/test
POST /admin/couriers/redx/save-store
```

### Frontend (Blade View)

#### Steadfast Flow
1. User enters API Key and Secret Key
2. Clicks "Test Connection"
3. System fetches balance from `/get_balance` endpoint
4. Shows balance with "Edit Credentials" button
5. Edit button reveals form again

#### Pathao Flow
1. User enters Client ID, Client Secret, Username, Password
2. Clicks "Test Connection"
3. System issues access token and fetches stores
4. Shows dropdown with available stores
5. User selects store and clicks "Save as Primary Store"
6. Shows store info with "Edit Credentials" button

#### RedX Flow
1. User enters API Token
2. Clicks "Test Connection"
3. System fetches stores from `/pickup/stores` endpoint
4. Shows dropdown with available stores
5. User selects store and clicks "Save as Primary Store"
6. Shows store info with "Edit Credentials" button

### Service Layer

#### SteadfastService
- `getBalance()` - GET request to `/get_balance` endpoint
- Returns balance amount on success

#### PathaoService
- `getStores()` - Fetches merchant stores after authentication
- Returns array of stores with store_id and store_name

#### RedXService
- `getStores()` - GET request to `/pickup/stores` endpoint
- Returns array of stores with id and name

### Database Settings
All courier credentials and configuration stored in `settings` table:
- `steadfast_api_key`, `steadfast_secret_key`, `steadfast_connected`
- `pathao_client_id`, `pathao_client_secret`, `pathao_username`, `pathao_password`, `pathao_store_id`, `pathao_connected`
- `redx_api_token`, `redx_store_id`, `redx_connected`

### UI/UX Features
- Clean card-based layout for each courier
- Status badges (Connected/Not Connected)
- Conditional visibility of forms/connected views
- Lucide icons with proper initialization
- Dark mode support
- Responsive design

## Bug Fixes
1. Fixed "Class 'Setting' not found" error by passing settings from controller
2. Fixed Lucide icon initialization using `reinitIcons()` helper
3. Fixed `$errors->hasPages()` bug in courier error logs view

## Testing
1. Navigate to `/admin/couriers`
2. Test each courier connection with valid credentials
3. Verify balance/store selection flow
4. Confirm settings are saved correctly
5. Test edit functionality

## Next Steps
- Add validation for API credentials format
- Implement connection status refresh
- Add webhook configuration for order tracking
- Implement bulk order sending
