feat: add mappers for brand, product and user

Author: maxjdev

src/main/java/br/com/catalog/utils/BrandToResponse.java

@@ -0,0 +1,16 @@
+package br.com.catalog.utils;
+
+import br.com.catalog.models.Brand;
+import br.com.catalog.services.impls.dtos.BrandDTO;
+import org.springframework.stereotype.Component;
+
+import java.util.function.Function;
+
+@Component
+public class BrandToResponse implements Function<Brand, BrandDTO> {
+    @Override
+    public BrandDTO apply(Brand brand) {
+        return new BrandDTO(brand.getName());
+    }
+}
+

src/main/java/br/com/catalog/utils/ProductToResponse.java

@@ -0,0 +1,21 @@
+package br.com.catalog.utils;
+
+import br.com.catalog.models.Product;
+import br.com.catalog.services.impls.dtos.ProductDTO;
+import org.springframework.stereotype.Component;
+
+import java.util.function.Function;
+
+@Component
+public class ProductToResponse implements Function<Product, ProductDTO> {
+    @Override
+    public ProductDTO apply(Product product) {
+        return ProductDTO.builder()
+                .name(product.getName())
+                .brand(product.getBrand().getName())
+                .description(product.getDescription())
+                .price(product.getPrice())
+                .stockQuanitity(product.getStockQuantity())
+                .build();
+    }
+}

src/main/java/br/com/catalog/utils/UserToResponse.java

@@ -0,0 +1,15 @@
+package br.com.catalog.utils;
+
+import br.com.catalog.models.User;
+import br.com.catalog.services.impls.dtos.UserResponseDTO;
+import org.springframework.stereotype.Component;
+
+import java.util.function.Function;
+
+@Component
+public class UserToResponse implements Function<User, UserResponseDTO> {
+    @Override
+    public UserResponseDTO apply(User user) {
+        return new UserResponseDTO(user.getUsername(), user.getRole().toString());
+    }
+}