package transformer

import (
	"fmt"
	"time"

	"github.com/yourorg/go-dw-platform/services/template-service/domain"
	"github.com/yourorg/go-dw-platform/services/template-service/dto"
	"github.com/yourorg/go-dw-platform/services/template-service/entity"
)

type Transformer struct{}

func New() *Transformer {
	return &Transformer{}
}

func (t *Transformer) RequestToDomain(req *dto.IngestRequest) (*domain.Order, error) {
	order := &domain.Order{
		OrderID:    req.OrderID,
		CustomerID: req.CustomerID,
		Amount:     req.Amount,
		CreatedAt:  time.Now(),
	}

	if err := order.Validate(); err != nil {
		return nil, fmt.Errorf("transform: %w", err)
	}

	return order, nil
}

func (t *Transformer) DomainToEntity(d *domain.Order) *entity.Order {
	return &entity.Order{
		OrderID:    d.OrderID,
		CustomerID: d.CustomerID,
		Amount:     d.Amount,
		CreatedAt:  d.CreatedAt,
	}
}