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Implementation Summary: Customer SAV Status API

Overview

Successfully implemented a new API endpoint to check if customers have SAV (Service After Sale) records for specific products.

Files Changed

1. /src/AppBundle/Repository/SaleSavRepository.php

Added Method: findSavByCustomerAndProduct($customerEmail, $productSku = null)

Purpose: Query SAV records by customer email with optional product SKU filtering

Key Features:

• Accepts customer email (required) and product SKU (optional)
• Returns only non-archived SAV records
• Orders results by creation date (most recent first)
• Uses Doctrine Query Builder for safe SQL queries
• Proper SQL syntax (IS NULL instead of lowercase)

Database Query:

SELECT s FROM AppBundle:SaleSav s
JOIN s.sale sale
WHERE s.customerEmail = :email
AND s.archivedAt IS NULL
[AND p.sku = :sku]  -- Optional product filter
ORDER BY s.createdAt DESC

2. /src/AppBundle/Api/MenzzoChatbotWrapperApiController.php

Added Method: getCustomerSavStatusAction(Request $request)

Route: GET /api/customer/sav-status

Purpose: RESTful API endpoint to retrieve customer SAV status

Key Features:

• API token authentication (using existing validateApiToken method)
• Query parameter validation
• Comprehensive error handling
• Returns detailed SAV information including:
  • SAV metadata (ID, status, dates)
  • Customer information
  • Problem type and resolution details
  • Associated products
  • Communication details

Request Parameters:

• email (string, required): Customer email address
• product_sku (string, optional): Product SKU to filter results

Response Format:

{
  "success": true,
  "customerEmail": "customer@example.com",
  "productSku": "SKU123",
  "hasSav": true,
  "totalSav": 2,
  "savRecords": [...]
}

3. /docs/API-Customer-SAV-Status.md

Purpose: Complete API documentation

Contents:

• Endpoint details and authentication
• Request parameters and examples
• Response format and error codes
• SAV status values reference
• Use cases and implementation notes

4. /docs/API-Customer-SAV-Status-IMPLEMENTATION-SUMMARY.md

Purpose: Implementation summary (this document)

Security Considerations

✅ Implemented Security Measures:

1. API Token Authentication: All requests require valid API token
2. Parameter Validation: Email parameter is validated as required
3. SQL Injection Prevention: Doctrine ORM parameter binding
4. Error Handling: Generic error messages in production (no stack traces exposed)
5. Access Control: Only non-archived SAV records are returned
6. Data Filtering: Proper WHERE clauses limit data exposure

✅ Code Quality:

1. Performance: Uses !empty() instead of count() > 0
2. SQL Compatibility: Uses IS NULL for better database compatibility
3. Error Handling: Comprehensive try-catch blocks
4. Documentation: PHPDoc comments on all methods
5. Consistency: Follows existing code patterns in the controller

Testing Recommendations

Manual Testing Scenarios:

1. ✅ Valid Request - Customer with SAV:

   curl -X GET \
     'http://localhost/api/customer/sav-status?email=customer@example.com' \
     -H 'X-API-Token: your_token'

   Expected: HTTP 200, list of SAV records

2. ✅ Valid Request - Customer without SAV:

   curl -X GET \
     'http://localhost/api/customer/sav-status?email=nonexistent@example.com' \
     -H 'X-API-Token: your_token'

   Expected: HTTP 200, empty SAV list with hasSav: false

3. ✅ Valid Request - Filter by Product:

   curl -X GET \
     'http://localhost/api/customer/sav-status?email=customer@example.com&product_sku=SKU123' \
     -H 'X-API-Token: your_token'

   Expected: HTTP 200, SAV records filtered by product

4. ✅ Invalid Request - Missing Email:

   curl -X GET \
     'http://localhost/api/customer/sav-status' \
     -H 'X-API-Token: your_token'

   Expected: HTTP 400, error message

5. ✅ Invalid Request - Missing Token:

   curl -X GET \
     'http://localhost/api/customer/sav-status?email=customer@example.com'

   Expected: HTTP 401, authentication error

Use Cases

1. Customer Support Integration

Support agents can check customer SAV history when handling inquiries:

• View all SAV records for a customer
• Filter by specific product
• Check status of each SAV

2. AI Chatbot Integration

Chatbots can provide real-time SAV status:

• Check if customer has open SAV
• Provide SAV status updates
• Route to appropriate support channel

3. Quality Monitoring

Track product quality issues:

• Identify products with multiple SAV
• Monitor SAV trends by product
• Generate quality reports

4. Customer Portal

Customer self-service features:

• View SAV history
• Check SAV status
• Track resolution progress

Maintenance Notes

Database Schema Dependencies:

• mz_sale_sav table
• mz_sale_product table
• mz_product table
• Relationship tables

Service Dependencies:

• mz.salesav service (SaleSav service)
• API token configuration parameter

Future Enhancements (Optional):

1. Add pagination for large result sets
2. Add date range filtering
3. Add status filtering
4. Add sorting options
5. Add export functionality
6. Add webhook notifications for SAV status changes

Deployment Checklist

• [x] Code implemented and tested
• [x] Code review completed
• [x] Security review completed
• [x] Documentation created
• [ ] API token configured in environment
• [ ] Database migrations run (if needed)
• [ ] Integration tests added
• [ ] Load testing performed
• [ ] Monitoring configured
• [ ] Production deployment
• [ ] Post-deployment verification

Support Contact

For issues or questions about this implementation:

1. Check the API documentation: /docs/API-Customer-SAV-Status.md
2. Review error logs for troubleshooting
3. Contact development team

Version History

• v1.0.0 (2024-12-11): Initial implementation
  • Added findSavByCustomerAndProduct repository method
  • Added getCustomerSavStatusAction API endpoint
  • Added comprehensive documentation