Elton Minetto
83 lines
1.5 KiB
Go
83 lines
1.5 KiB
Go
package book
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import (
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"strings"
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"time"
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repo "github.com/eminetto/clean-architecture-go-v2/domain/repository/book"
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"github.com/eminetto/clean-architecture-go-v2/domain"
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"github.com/eminetto/clean-architecture-go-v2/domain/entity"
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)
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//Service book usecase
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type Service struct {
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repo repo.Repository
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}
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//NewService create new service
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func NewService(r repo.Repository) *Service {
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return &Service{
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repo: r,
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}
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}
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//Create a book
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func (s *Service) CreateBook(e *entity.Book) (entity.ID, error) {
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e.ID = entity.NewID()
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e.CreatedAt = time.Now()
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return s.repo.Create(e)
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}
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//Get a book
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func (s *Service) GetBook(id entity.ID) (*entity.Book, error) {
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b, err := s.repo.Get(id)
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if b == nil {
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return nil, domain.ErrNotFound
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}
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if err != nil {
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return nil, err
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}
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return b, nil
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}
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//Search books
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func (s *Service) SearchBooks(query string) ([]*entity.Book, error) {
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books, err := s.repo.Search(strings.ToLower(query))
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if err != nil {
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return nil, err
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}
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if len(books) == 0 {
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return nil, domain.ErrNotFound
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}
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return books, nil
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}
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//List books
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func (s *Service) ListBooks() ([]*entity.Book, error) {
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books, err := s.repo.List()
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if err != nil {
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return nil, err
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}
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if len(books) == 0 {
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return nil, domain.ErrNotFound
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}
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return books, nil
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}
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//Delete a book
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func (s *Service) DeleteBook(id entity.ID) error {
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_, err := s.GetBook(id)
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if err != nil {
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return err
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}
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return s.repo.Delete(id)
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}
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//Update a book
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func (s *Service) UpdateBook(e *entity.Book) error {
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return s.repo.Update(e)
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}
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