refactor: clean arch approach for mercado pago payments

src/main/java/br/com/fiap/grupo30/fastfood/domain/usecases/payment/CollectOrderPaymentViaCashUseCase.java

@@ -16,10 +16,10 @@ public CollectOrderPaymentViaCashUseCase(OrderGateway orderGateway) {
         this.orderGateway = orderGateway;
     }
 
-    public OrderDTO execute(Long orderId, CollectPaymentViaCashRequest payment) {
+    public OrderDTO execute(Long orderId, Double paidAmount) {
         Order order = this.orderGateway.findById(orderId);
 
-        order.setPaymentCollected(payment.getAmount());
+        order.setPaymentCollected(paidAmount);
 
         return orderGateway.save(order).toDTO();
     }

src/main/java/br/com/fiap/grupo30/fastfood/domain/usecases/payment/CollectOrderPaymentViaMercadoPagoUseCase.java

@@ -1,7 +1,7 @@
 package br.com.fiap.grupo30.fastfood.domain.usecases.payment;
 
-import br.com.fiap.grupo30.fastfood.adapters.out.mercadopago.MercadoPagoAdapter;
 import br.com.fiap.grupo30.fastfood.domain.entities.Order;
+import br.com.fiap.grupo30.fastfood.infrastructure.gateways.MercadoPagoGateway;
 import br.com.fiap.grupo30.fastfood.infrastructure.gateways.OrderGateway;
 import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.OrderDTO;
 import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.mercadopago.MercadoPagoPaymentDTO;
@@ -14,19 +14,20 @@
 @Component
 public class CollectOrderPaymentViaMercadoPagoUseCase {
     private final OrderGateway orderGateway;
-    private final MercadoPagoAdapter mercadoPagoAdapter;
+    private final MercadoPagoGateway mercadoPagoGateway;
 
     @Autowired
     public CollectOrderPaymentViaMercadoPagoUseCase(
-            OrderGateway orderGateway, MercadoPagoAdapter mercadoPagoAdapter) {
+            OrderGateway orderGateway, MercadoPagoGateway mercadoPagoGateway) {
         this.orderGateway = orderGateway;
-        this.mercadoPagoAdapter = mercadoPagoAdapter;
+        this.mercadoPagoGateway = mercadoPagoGateway;
     }
 
     public OrderDTO execute(MercadoPagoActionEventDTO mercadoPagoPaymentEvent) {
         try {
             MercadoPagoPaymentDTO payment =
-                    this.mercadoPagoAdapter.getPayment(mercadoPagoPaymentEvent.getData().getId());
+                    this.mercadoPagoGateway.getPaymentState(
+                            mercadoPagoPaymentEvent.getData().getId());
 
             Order order =
                     this.orderGateway.findById(Long.parseLong(payment.getExternalReference()));

src/main/java/br/com/fiap/grupo30/fastfood/domain/usecases/payment/GeneratePaymentQrCodeUseCase.java

@@ -1,29 +1,24 @@
 package br.com.fiap.grupo30.fastfood.domain.usecases.payment;
 
-import br.com.fiap.grupo30.fastfood.adapters.out.mercadopago.MercadoPagoAdapter;
 import br.com.fiap.grupo30.fastfood.domain.entities.Order;
+import br.com.fiap.grupo30.fastfood.infrastructure.gateways.MercadoPagoGateway;
 import br.com.fiap.grupo30.fastfood.infrastructure.gateways.OrderGateway;
 import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.PaymentQrCodeDTO;
 import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.mercadopago.MercadoPagoQrCodeDTO;
 import br.com.fiap.grupo30.fastfood.presentation.presenters.exceptions.PaymentProcessingFailedException;
-import br.com.fiap.grupo30.fastfood.presentation.presenters.mapper.impl.PaymentQrCodeDTOMapper;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 @Component
 public class GeneratePaymentQrCodeUseCase {
     private final OrderGateway orderGateway;
-    private final MercadoPagoAdapter mercadoPagoAdapter;
-    private final PaymentQrCodeDTOMapper qrCodeMapper;
+    private final MercadoPagoGateway mercadoPagoGateway;
 
     @Autowired
     public GeneratePaymentQrCodeUseCase(
-            OrderGateway orderGateway,
-            MercadoPagoAdapter mercadoPagoAdapter,
-            PaymentQrCodeDTOMapper qrCodeMapper) {
+            OrderGateway orderGateway, MercadoPagoGateway mercadoPagoGateway) {
         this.orderGateway = orderGateway;
-        this.mercadoPagoAdapter = mercadoPagoAdapter;
-        this.qrCodeMapper = qrCodeMapper;
+        this.mercadoPagoGateway = mercadoPagoGateway;
     }
 
     public PaymentQrCodeDTO execute(Long orderId) {
@@ -32,14 +27,14 @@ public PaymentQrCodeDTO execute(Long orderId) {
         MercadoPagoQrCodeDTO qrCodeResponse;
         try {
             qrCodeResponse =
-                    this.mercadoPagoAdapter.createQrCodeForPaymentCollection(order.toDTO());
+                    this.mercadoPagoGateway.createQrCodeForOrderPaymentCollection(order.toDTO());
         } catch (Exception e) {
             throw new PaymentProcessingFailedException("Could not start payment processing", e);
         }
 
         order.setPaymentProcessing();
         this.orderGateway.save(order);
 
-        return qrCodeMapper.map(qrCodeResponse);
+        return new PaymentQrCodeDTO(qrCodeResponse.getQrData());
     }
 }

src/main/java/br/com/fiap/grupo30/fastfood/infrastructure/gateways/MercadoPagoGateway.java

@@ -0,0 +1,98 @@
+package br.com.fiap.grupo30.fastfood.infrastructure.gateways;
+
+import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.OrderDTO;
+import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.mercadopago.MercadoPagoOrderDTO;
+import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.mercadopago.MercadoPagoPaymentDTO;
+import br.com.fiap.grupo30.fastfood.presentation.presenters.dto.mercadopago.MercadoPagoQrCodeDTO;
+import br.com.fiap.grupo30.fastfood.presentation.presenters.mapper.impl.MercadoPagoOrderMapper;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpRequest.BodyPublisher;
+import java.net.http.HttpRequest.BodyPublishers;
+import java.net.http.HttpResponse;
+import java.util.HashMap;
+import java.util.Map;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+@Component
+public class MercadoPagoGateway {
+    @Value("${integrations.mercadopago.base-url}")
+    private String baseUrl;
+
+    @Value("${integrations.mercadopago.public-key}")
+    private String publicKey;
+
+    @Value("${integrations.mercadopago.access-token}")
+    private String privateAccessToken;
+
+    @Value("${integrations.mercadopago.app-user-id}")
+    private Long appUserId;
+
+    @Value("${integrations.mercadopago.point-of-sale-id}")
+    private String pointOfSaleId;
+
+    @Value("${integrations.mercadopago.notifications-url}")
+    private String notificationsUrl;
+
+    private ObjectMapper jsonMapper;
+    private MercadoPagoOrderMapper orderMapper;
+
+    @Autowired
+    public MercadoPagoGateway(MercadoPagoOrderMapper orderMapper) {
+        this.jsonMapper = new ObjectMapper();
+        this.orderMapper = orderMapper;
+    }
+
+    private Map<String, String> getHeaders() {
+        return new HashMap<String, String>() {
+            {
+                put("Authorization", String.format("Bearer %s", privateAccessToken));
+                put("Content-type", "application/json");
+            }
+        };
+    }
+
+    private HttpResponse<String> makeRequest(String httpMethod, URI resourceUri) throws Exception {
+        return makeRequest(httpMethod, resourceUri, BodyPublishers.noBody());
+    }
+
+    private HttpResponse<String> makeRequest(String httpMethod, URI resourceUri, BodyPublisher body)
+            throws Exception {
+        try (HttpClient client = HttpClient.newHttpClient()) {
+            HttpRequest.Builder builder =
+                    HttpRequest.newBuilder().uri(resourceUri).method(httpMethod, body);
+            getHeaders().forEach(builder::header);
+
+            HttpRequest request = builder.build();
+
+            return client.send(request, HttpResponse.BodyHandlers.ofString());
+        }
+    }
+
+    public MercadoPagoQrCodeDTO createQrCodeForOrderPaymentCollection(OrderDTO order)
+            throws Exception {
+        String resourceUriTemplate =
+                "https://api.mercadopago.com/instore/orders/qr/seller/collectors/%s/pos/%s/qrs";
+        URI resourceUri = URI.create(String.format(resourceUriTemplate, appUserId, pointOfSaleId));
+
+        MercadoPagoOrderDTO mercadoPagoOrder = orderMapper.map(order, notificationsUrl);
+        BodyPublisher requestBody =
+                HttpRequest.BodyPublishers.ofString(
+                        jsonMapper.writeValueAsString(mercadoPagoOrder));
+
+        var response = makeRequest("PUT", resourceUri, requestBody);
+        return jsonMapper.readValue(response.body(), MercadoPagoQrCodeDTO.class);
+    }
+
+    public MercadoPagoPaymentDTO getPaymentState(String paymentId) throws Exception {
+        String resourceUriTemplate = "https://api.mercadopago.com/v1/payments/%s";
+        URI resourceUri = URI.create(String.format(resourceUriTemplate, paymentId));
+
+        var response = makeRequest("GET", resourceUri);
+        return jsonMapper.readValue(response.body(), MercadoPagoPaymentDTO.class);
+    }
+}

src/main/java/br/com/fiap/grupo30/fastfood/presentation/controllers/PaymentResource.java

@@ -43,7 +43,7 @@ public ResponseEntity<PaymentQrCodeDTO> generateQrCodeForPaymentCollection(
     @Operation(summary = "Collect payment by cash")
     public ResponseEntity<OrderDTO> collectPaymentByBash(
             @PathVariable Long orderId, @RequestBody CollectPaymentViaCashRequest request) {
-        OrderDTO order = this.collectOrderPaymentViaCashUseCase.execute(orderId, request);
+        OrderDTO order = this.collectOrderPaymentViaCashUseCase.execute(orderId, request.getAmount());
         return ResponseEntity.ok().body(order);
     }
 }

src/main/java/br/com/fiap/grupo30/fastfood/presentation/presenters/dto/CollectPaymentViaCashRequest.java

@@ -1,12 +1,10 @@
 package br.com.fiap.grupo30.fastfood.presentation.presenters.dto;
 
 import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
+import lombok.Getter;
 
-@Data
+@Getter
 @AllArgsConstructor
-@NoArgsConstructor
 public class CollectPaymentViaCashRequest {
     private Double amount;
 }

src/main/java/br/com/fiap/grupo30/fastfood/presentation/presenters/dto/MercadoPagoNotificationDTO.java

@@ -3,11 +3,9 @@
 import com.fasterxml.jackson.annotation.JsonProperty;
 import java.util.Date;
 import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
+import lombok.Getter;
 
-@Data
-@NoArgsConstructor
+@Getter
 @AllArgsConstructor
 public class MercadoPagoNotificationDTO {
     private String action;

src/main/java/br/com/fiap/grupo30/fastfood/presentation/presenters/dto/PaymentQrCodeDTO.java

@@ -1,9 +1,9 @@
 package br.com.fiap.grupo30.fastfood.presentation.presenters.dto;
 
 import lombok.AllArgsConstructor;
-import lombok.Data;
+import lombok.Getter;
 
-@Data
+@Getter
 @AllArgsConstructor
 public class PaymentQrCodeDTO {
     public String qrCodeData;