edit : Dockerfile

Dockerfile

@@ -1,5 +1,11 @@
-FROM eclipse-temurin:21-jre-alpine
-WORKDIR /app
-# Копируем готовый jar из папки build/libs
-COPY build/libs/*.jar app.jar
-ENTRYPOINT ["java", "-jar", "app.jar"]
+# Этап 1 — сборка jar внутри Docker
+ FROM gradle:8-jdk21-alpine AS builder
+ WORKDIR /app
+ COPY . .
+ RUN gradle build -x test
+
+ # Этап 2 — запуск
+ FROM eclipse-temurin:21-jre-alpine
+ WORKDIR /app
+ COPY --from=builder /app/build/libs/*.jar app.jar
+ ENTRYPOINT ["java", "-jar", "app.jar"]

build.gradle

@@ -8,6 +8,11 @@ group = 'com.codzilla'
 version = '0.0.1'
 description = 'Backend'
 
+jar {
+
+    enabled = false
+}
+
 java {
     toolchain {
         languageVersion = JavaLanguageVersion.of(21)
@@ -21,9 +26,14 @@ repositories {
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    implementation 'org.springframework.kafka:spring-kafka'
+    implementation 'org.springframework.boot:spring-boot-starter-websocket'
 
     developmentOnly 'org.springframework.boot:spring-boot-devtools'
 
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
+
     runtimeOnly 'org.postgresql:postgresql'
 
     testRuntimeOnly 'com.h2database:h2'

src/main/java/com/codzilla/backend/controller/Sandbox/judge0/Judge0Client.java

@@ -0,0 +1,75 @@
+package com.codzilla.backend.controller.Sandbox.judge0;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestClient;
+import org.springframework.http.MediaType;
+
+@Slf4j
+@Component
+public class Judge0Client {
+
+    private final RestClient restClient;
+    private final ObjectMapper objectMapper = new ObjectMapper();
+
+    public Judge0Client(@Value("${judge0.base-url}") String baseUrl) {
+        this.restClient = RestClient.builder()
+                .baseUrl(baseUrl)
+                .build();
+    }
+
+    public String submit(String sourceCode, int languageId, String stdin) {
+        try {
+            String body = objectMapper.writeValueAsString(new SubmissionRequest(sourceCode, languageId, stdin));
+            log.info("Sending to Judge0 body: {}", body);
+
+            String raw = restClient.post()
+                    .uri("/submissions?wait=true")
+                    .contentType(MediaType.APPLICATION_JSON)
+                    .body(body)
+                    .retrieve()
+                    .onStatus(status -> true, (req, res) -> {})
+                    .body(String.class);
+
+            log.info("Judge0 response: {}", raw);
+
+            SubmissionResponse response = objectMapper.readValue(raw, SubmissionResponse.class);
+            return response.getStatus().getDescription();
+
+        } catch (Exception e) {
+            throw new RuntimeException("Judge0 error: " + e.getMessage(), e);
+        }
+    }
+
+    public static class SubmissionRequest {
+        public String source_code;
+        public Integer language_id;
+        public String stdin;
+
+        public SubmissionRequest(String sourceCode, int languageId, String stdin) {
+            this.source_code = sourceCode;
+            this.language_id = languageId;
+            this.stdin = stdin;
+        }
+    }
+
+    @Data
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static class SubmissionResponse {
+        private String stdout;
+        private String stderr;
+        private String compile_output;
+        private Status status;
+
+        @Data
+        @JsonIgnoreProperties(ignoreUnknown = true)
+        public static class Status {
+            private int id;
+            private String description;
+        }
+    }
+}

src/main/java/com/codzilla/backend/controller/Sandbox/polygon/CreateProblemRequest.java

@@ -0,0 +1,19 @@
+package com.codzilla.backend.controller.Sandbox.polygon;
+
+import com.codzilla.backend.controller.Sandbox.problem.Problem;
+import lombok.Data;
+import java.util.List;
+
+@Data
+public class CreateProblemRequest {
+    private String name;           // название задачи
+    private Problem.ProblemType type;
+    private Problem.ProblemLevel level;
+    private List<TestCase> tests;  // список тестов
+
+    @Data
+    public static class TestCase {
+        private String input;   // "1 2"
+        private String output;  // "3"
+    }
+}