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package org.smarttechie.handler;
import org.smarttechie.model.Product;
import org.smarttechie.service.ProductService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
import reactor.core.publisher.Mono;
import static org.springframework.web.reactive.function.BodyInserters.fromObject;
@Component
public class ProductHandler {
@Autowired
private ProductService productService;
static Mono<ServerResponse> notFound = ServerResponse.notFound().build();
/**
* The handler to get all the available products.
* @param serverRequest
* @return - all the products info as part of ServerResponse
*/
public Mono<ServerResponse> getAllProducts(ServerRequest serverRequest) {
return ServerResponse.ok()
.contentType(MediaType.APPLICATION_JSON)
.body(productService.getAllProducts(), Product.class);
}
/**
* The handler to create a product
* @param serverRequest
* @return - return the created product as part of ServerResponse
*/
public Mono<ServerResponse> createProduct(ServerRequest serverRequest) {
Mono<Product> productToSave = serverRequest.bodyToMono(Product.class);
return productToSave.flatMap(product ->
ServerResponse.ok()
.contentType(MediaType.APPLICATION_JSON)
.body(productService.save(product), Product.class));
}
/**
* The handler to delete a product based on the product id.
* @param serverRequest
* @return - return the deleted product as part of ServerResponse
*/
public Mono<ServerResponse> deleteProduct(ServerRequest serverRequest) {
String id = serverRequest.pathVariable("id");
Mono<Void> deleteItem = productService.deleteProduct(Integer.parseInt(id));
return ServerResponse.ok()
.contentType(MediaType.APPLICATION_JSON)
.body(deleteItem, Void.class);
}
/**
* The handler to update a product.
* @param serverRequest
* @return - The updated product as part of ServerResponse
*/
public Mono<ServerResponse> updateProduct(ServerRequest serverRequest) {
return productService.update(serverRequest.bodyToMono(Product.class)).flatMap(product ->
ServerResponse.ok()
.contentType(MediaType.APPLICATION_JSON)
.body(fromObject(product)))
.switchIfEmpty(notFound);
}
}
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