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feat(loyalty): EnakPoint payment method

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Adds the system payment method for paying with EnakPoint
(docs/prd-point-coin.md F9, §8, §10.5, PC-303).

Migration 000094 allows the point type, keeps one per organization with a
partial unique index, creates it for every existing organization, and adds
a trigger that creates it for new ones, as the walk-in customer is. It adds
payments.points_used and point_value. Their CHECK is written so it can
never be NULL: the PRD form, (both NULL) OR (both > 0), is NULL for
points_used with a NULL point_value, which a CHECK lets through, so a
payment could have lost the value a refund depends on. A test caught it.

The API cannot create, delete or retype the EnakPoint method, nor turn
another method into one; that answers 400. Renaming it is allowed. The
method list takes the outlet from ?outlet_id= or the user's outlet and
leaves EnakPoint out when that outlet does not accept it, filtered in the
query so the count stays right. The organization-wide active list is
unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-09-30 11:33:25 +07:00
co-authored by Claude Opus 5.5
parent fe2f459b03
commit cf5332c281
13 changed files with 274 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
internal/service/payment_method_service.go
+14 -3
View File
@@ -2,8 +2,10 @@ package service
import (
"context"
"errors"
"apskel-pos-be/internal/appcontext"
"apskel-pos-be/internal/constants"
"apskel-pos-be/internal/contract"
"apskel-pos-be/internal/mappers"
"apskel-pos-be/internal/processor"
@@ -39,7 +41,7 @@ func (s *PaymentMethodServiceImpl) CreatePaymentMethod(ctx context.Context, cont
response, err := s.paymentMethodProcessor.CreatePaymentMethod(ctx, modelReq)
if err != nil {
return contract.BuildErrorResponse([]*contract.ResponseError{
contract.NewResponseError("PAYMENT_METHOD_CREATE_ERROR", "payment_method", err.Error()),
contract.NewResponseError(paymentMethodErrorCode(err, "PAYMENT_METHOD_CREATE_ERROR"), "payment_method", err.Error()),
})
}
@@ -84,7 +86,7 @@ func (s *PaymentMethodServiceImpl) UpdatePaymentMethod(ctx context.Context, id u
response, err := s.paymentMethodProcessor.UpdatePaymentMethod(ctx, id, modelReq)
if err != nil {
return contract.BuildErrorResponse([]*contract.ResponseError{
contract.NewResponseError("PAYMENT_METHOD_UPDATE_ERROR", "payment_method", err.Error()),
contract.NewResponseError(paymentMethodErrorCode(err, "PAYMENT_METHOD_UPDATE_ERROR"), "payment_method", err.Error()),
})
}
@@ -97,7 +99,7 @@ func (s *PaymentMethodServiceImpl) DeletePaymentMethod(ctx context.Context, id u
err := s.paymentMethodProcessor.DeletePaymentMethod(ctx, id)
if err != nil {
return contract.BuildErrorResponse([]*contract.ResponseError{
contract.NewResponseError("PAYMENT_METHOD_DELETE_ERROR", "payment_method", err.Error()),
contract.NewResponseError(paymentMethodErrorCode(err, "PAYMENT_METHOD_DELETE_ERROR"), "payment_method", err.Error()),
})
}
@@ -123,3 +125,12 @@ func (s *PaymentMethodServiceImpl) GetActivePaymentMethodsByOrganization(ctx con
return contract.BuildSuccessResponse(contractResponses)
}
// paymentMethodErrorCode answers a request to create, delete or retype the EnakPoint
// method as a bad request instead of a server error.
func paymentMethodErrorCode(err error, fallback string) string {
if errors.Is(err, processor.ErrSystemPaymentMethod) {
return constants.ValidationErrorCode
}
return fallback
}