Description

Add an API endpoint to duplicate an existing discount and return the newly created discount. This functionality should mirror the duplicate functionality available in the Back Office.

Required Changes:

• Create a new API endpoint: POST /api/discounts/{discountId}/duplicate
• The endpoint should:
  • Accept a discount ID as path parameter
  • Create a duplicate of the discount
  • Generate a new unique code if the original had a code
  • Return the complete newly created discount object
  • Handle all related data (conditions, restrictions, etc.)

Technical Details:

• The duplicate should copy all discount properties
• If the original discount has a code, the duplicate should have a new generated code or be code-less
• The duplicate should be inactive by default (or follow the same pattern as product duplication)
• All restrictions, conditions, and discount settings should be copied

How to Test

Prerequisites

1. Set up a PrestaShop 9 instance with API access configured
2. Create an API client with appropriate permissions
3. Create at least one discount with various configurations:
   • Discount with code
   • Discount with customer restrictions
   • Discount with product restrictions
   • Discount with discount settings (percentage and amount)

Test Case 1: Basic Duplication

1. Create a discount via API or Back Office:

   • Note the discount ID
   • Ensure it has various settings (name, description, discount type, etc.)

2. Duplicate the discount:

   POST /api/discounts/{discountId}/duplicate
   Authorization: Bearer {api_token}

3. Verify duplication:

   • Response status should be 201 Created
   • Response should include the complete newly created discount object
   • The new discount should have a different ID
   • All properties (except ID and code if applicable) should match the original
   • Verify in Back Office that both discounts exist

Test Case 2: Duplicate Discount with Code

1. Create a discount with a code:

   POST /api/discounts
   Authorization: Bearer {api_token}
   Content-Type: application/json
   
   {
     "name": "Original Discount",
     "code": "ORIGINAL2025",
     "active": true,
     ...
   }

2. Duplicate the discount:

   POST /api/discounts/{discountId}/duplicate
   Authorization: Bearer {api_token}

3. Verify code handling:

   • The duplicate should either have:
     • A new generated code, OR
     • An empty code (if code-less discounts are allowed)
   • The duplicate code should be unique and not conflict with existing codes

Test Case 3: Duplicate Discount with Restrictions

1. Create a discount with customer and product restrictions:

   • Set specific customer eligibility
   • Set product restrictions
   • Set minimum amount conditions

2. Duplicate the discount:

   POST /api/discounts/{discountId}/duplicate
   Authorization: Bearer {api_token}

3. Verify restrictions are copied:

   • Response should include all restrictions
   • Customer eligibility should be preserved
   • Product restrictions should be preserved
   • Minimum amount conditions should be preserved
   • Verify in Back Office that restrictions match

Test Case 4: Duplicate Non-Existent Discount

1. Attempt to duplicate a non-existent discount:

   POST /api/discounts/99999/duplicate
   Authorization: Bearer {api_token}

2. Verify error handling:

   • Response status should be 404 Not Found
   • Response should include an appropriate error message

Test Case 5: Verify Duplicate is Independent

1. Create and duplicate a discount

2. Modify the original discount:

   PUT /api/discounts/{originalId}
   Authorization: Bearer {api_token}
   Content-Type: application/json
   
   {
     "name": "Modified Original"
   }

3. Verify independence:

   • The duplicate should remain unchanged
   • The original should have the new name
   • Both should be independent entities