package service

import (
	"context"

	"github.com/google/uuid"

	"apskel-pos-be/internal/contract"
	"apskel-pos-be/internal/models"
	"apskel-pos-be/internal/processor"
	"apskel-pos-be/internal/transformer"
)

// CustomerOrderPaymentService lets customers pay their own orders with EnakPoint in the
// app or a self-order (docs/prd-point-coin.md F9).
type CustomerOrderPaymentService interface {
	PayWithPoints(ctx context.Context, customerID, orderID uuid.UUID, req *contract.PayWithPointsRequest, info models.CustomerPinRequestInfo) *contract.Response
}

type CustomerOrderPaymentServiceImpl struct {
	orders processor.OrderProcessor
}

func NewCustomerOrderPaymentService(orders processor.OrderProcessor) *CustomerOrderPaymentServiceImpl {
	return &CustomerOrderPaymentServiceImpl{orders: orders}
}

func (s *CustomerOrderPaymentServiceImpl) PayWithPoints(ctx context.Context, customerID, orderID uuid.UUID, req *contract.PayWithPointsRequest, info models.CustomerPinRequestInfo) *contract.Response {
	payment, err := s.orders.PayWithPointsInApp(ctx, customerID, orderID, req.Points, req.Pin, info)
	if err != nil {
		return PointPaymentErrorResponse(err)
	}
	return contract.BuildSuccessResponse(transformer.PaymentModelToContract(payment))
}