# Task 6 - Payment Gateway Developer

## Task: Add custom payment gateway management system in the admin panel

### What was done:

1. **Updated AdminModule.tsx**
   - Renamed the `payments` tab to `payment-gateways` with bilingual labels ("Payment Gateways" / "পেমেন্ট গেটওয়ে")
   - Updated the switch case from `case 'payments'` to `case 'payment-gateways'`

2. **Created admin API for payment transactions**
   - New file: `src/app/api/admin/payment-transactions/route.ts`
   - GET: Lists all payment transactions with user/gateway relations, status/gateway filtering, pagination, and aggregate stats (totalAmount, completedAmount, pendingAmount, counts)
   - PATCH: Updates transaction status with validation (pending/processing/completed/failed/refunded)

3. **Enhanced AdminPayments.tsx with major new features**
   - Added sub-tab navigation between "Gateways" and "Transactions" views
   - Added `TransactionDetailDialog` component for viewing full transaction details with status update
   - Added transaction stats cards: Total Revenue, Completed, Pending, Total Transactions
   - Added transaction table with responsive columns
   - Added transaction filtering by status and search functionality
   - Added quick action buttons: View Details, Approve, Reject
   - Added `TRANSACTION_STATUSES` helper with icons and bilingual labels
   - Added `getStatusConfig` helper function
   - All new UI follows existing orange/white/black theme

### Files Modified:
- `src/components/modules/AdminModule.tsx` - renamed payments tab to payment-gateways
- `src/components/admin/AdminPayments.tsx` - enhanced with transactions sub-tab

### Files Created:
- `src/app/api/admin/payment-transactions/route.ts` - admin transactions API

### Status: Complete ✅