dev/codeforces/ Добавил DTO для api

Author: AlexanderGarifullin

src/main/java/com/cf/cfteam/services/client/CodeforcesClient.java

@@ -0,0 +1,44 @@
+package com.cf.cfteam.services.client;
+
+
+import com.cf.cfteam.exceptions.client.ClientErrorException;
+import com.cf.cfteam.exceptions.client.ServerErrorException;
+import lombok.RequiredArgsConstructor;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestClient;
+
+@Service
+@RequiredArgsConstructor
+public class CodeforcesClient {
+
+    private final RestClient restClient;
+
+    @Value("${codeforces.api.player.url}")
+    private String playerUrl;
+
+    public Double fetchRatingFromApi(String login) {
+        ResponseEntity<UserInfoResponse> playerResponse = restClient.get()
+                .uri(uriBuilder -> uriBuilder
+                        .path(playerUrl)
+                        .queryParam("handles", login)
+                        .queryParam("checkHistoricHandles", false)
+                        .build())
+                .retrieve()
+                .toEntity(UserInfoResponse.class);
+        if (playerResponse.getStatusCode().is2xxSuccessful() && playerResponse.getBody() != null &&
+        playerResponse.getBody().getResult().size() == 1 && playerResponse.getBody().getResult().getFirst() != null) {
+            return playerResponse.getBody().getResult().getFirst().getRating() != null ?
+                    playerResponse.getBody().getResult().getFirst().getRating() : 0.;
+        }
+        if (playerResponse.getStatusCode().is4xxClientError()) {
+            throw new ClientErrorException(playerResponse.getStatusCode().toString());
+        }
+        if (playerResponse.getStatusCode().is5xxServerError()) {
+            throw new ServerErrorException(playerResponse.getStatusCode().toString());
+        }
+        throw new RuntimeException("Error: " + playerResponse.getStatusCode());
+    }
+}

src/main/java/com/cf/cfteam/services/client/CodeforcesPlayerResponse.java

@@ -0,0 +1,16 @@
+package com.cf.cfteam.services.client;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class CodeforcesPlayerResponse {
+
+    @JsonProperty("handle")
+    private String handle;
+
+    @JsonProperty("rating")
+    private Double rating;
+}

src/main/java/com/cf/cfteam/transfer/responses/codeforces/GroupResponse.java

@@ -0,0 +1,14 @@
+package com.cf.cfteam.transfer.responses.codeforces;
+
+import lombok.Builder;
+
+import java.util.List;
+
+@Builder
+public record GroupResponse(
+        Long id,
+        String name,
+        String description,
+        List<TeamResponse> teams
+)  {
+}