어휘 분석 기능 구현

build.gradle

@@ -21,6 +21,7 @@ configurations {
 
 repositories {
 	mavenCentral()
+	maven { url 'https://repo.spring.io/milestone' }
 }
 
 sourceSets {
@@ -37,6 +38,8 @@ sourceSets {
 }
 
 dependencies {
+	implementation platform('org.springframework.ai:spring-ai-bom:0.8.1')
+	implementation 'org.springframework.ai:spring-ai-openai-spring-boot-starter'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'org.springframework.boot:spring-boot-starter-validation'
 	implementation 'org.springframework.boot:spring-boot-starter-web'

src/main/java/com/space/server/common/config/OpenAiConfig.java

@@ -0,0 +1,23 @@
+package com.space.server.common.config;
+
+import org.springframework.ai.openai.OpenAiChatClient;
+import org.springframework.ai.openai.api.OpenAiApi;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class OpenAiConfig {
+    @Value("${spring.ai.openai.api-key}")
+    private String openAiApiKey;
+
+    @Bean
+    public OpenAiApi openAiApi() {
+        return new OpenAiApi(openAiApiKey);
+    }
+
+    @Bean
+    public OpenAiChatClient openAiChatClient(OpenAiApi openAiApi) {
+        return new OpenAiChatClient(openAiApi);
+    }
+}

src/main/java/com/space/server/domain/chat/presentation/ChatController.java

@@ -4,10 +4,7 @@
 import com.space.server.domain.ai.service.implementation.ChatTuner;
 import com.space.server.domain.chat.presentation.dto.request.CreateChatRequest;
 import com.space.server.domain.chat.presentation.dto.request.ReadQuizAndUserRequest;
-import com.space.server.domain.chat.presentation.dto.response.ChatResponse;
-import com.space.server.domain.chat.presentation.dto.response.CountChatResponse;
-import com.space.server.domain.chat.presentation.dto.response.ReadKeyWordsResponse;
-import com.space.server.domain.chat.presentation.dto.response.ReadSuccessChatResponse;
+import com.space.server.domain.chat.presentation.dto.response.*;
 import com.space.server.domain.chat.service.CommandChatService;
 import com.space.server.domain.chat.service.QueryChatService;
 import com.space.server.domain.state.service.QueryStateService;
@@ -60,6 +57,11 @@ public ReadKeyWordsResponse readMostKeyWords() {
         );
     }
 
+    @GetMapping("/chats/typo")
+    public VocabularyFeedbackResponse readTypo() {
+        return queryChatService.findTypo(getMemberId());
+    }
+
     @PostMapping("/chats/count")
     public CountChatResponse countChatByQuiz(@RequestBody ReadQuizAndUserRequest request) {
         return CountChatResponse.of(

src/main/java/com/space/server/domain/chat/presentation/dto/response/VocabularyFeedbackResponse.java

@@ -0,0 +1,7 @@
+package com.space.server.domain.chat.presentation.dto.response;
+
+public record VocabularyFeedbackResponse(
+        String vocabularyAnalysis,
+        String aiGeneratedFeedback
+) {
+}

src/main/java/com/space/server/domain/chat/service/QueryChatService.java

@@ -2,6 +2,7 @@
 
 import com.space.server.domain.chat.domain.Chat;
 import com.space.server.domain.chat.presentation.dto.response.ChatResponse;
+import com.space.server.domain.chat.presentation.dto.response.VocabularyFeedbackResponse;
 import com.space.server.domain.chat.service.implementation.ChatAnalyzer;
 import com.space.server.domain.chat.service.implementation.ChatReader;
 import com.space.server.domain.quiz.service.implementation.QuizReader;
@@ -10,18 +11,22 @@
 import com.space.server.domain.state.service.implementation.StateReader;
 import com.space.server.domain.user.service.implementation.UserReader;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.ai.openai.OpenAiChatClient;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.*;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
+@Slf4j
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
 public class QueryChatService {
 
+    private final OpenAiChatClient chatClient;
     private final ChatReader chatReader;
     private final StateReader stateReader;
     private final QuizReader quizReader;
@@ -59,6 +64,50 @@ public Map<String, Long> readMostKeyWords(Long userId) {
             ));
     }
 
+    public VocabularyFeedbackResponse findTypo(Long userId) {
+        // 사용자의 상태와 채팅 내용 조회
+        List<State> states = stateReader.findByUserId(userReader.findById(userId));
+        List<Chat> chats = chatReader.findAllChatByStates(states);
+
+        // 모든 채팅 내용 병합
+        String mergedChats = chats.stream()
+                .map(Chat::getUserChat)
+                .filter(Objects::nonNull)
+                .collect(Collectors.joining(" "));
+
+        // 어휘 오류 분석 프롬프트
+        String analysisPrompt = String.format(
+                "다음 텍스트에서 가장 많이 틀린 어휘 상위 5개를 찾아주세요. " +
+                        "각 어휘에 대해 몇 번 잘못 썼는지, 올바른 표현은 무엇인지 알려주세요. " +
+                        "초등학생의 글입니다. 텍스트: %s", mergedChats
+        );
+
+        // 어휘 오류 분석
+        String analysisResponse = chatClient.call(analysisPrompt);
+
+        // 피드백 생성 프롬프트
+        String feedbackPrompt = String.format(
+                "다음은 초등학생의 어휘 사용 분석입니다: %s\n\n" +
+                        "이 분석을 바탕으로 부모님과 선생님을 위한 상세하고 구체적인 어휘력 향상 피드백을 만들어주세요. " +
+                        "다음 사항을 포함해주세요:\n" +
+                        "1. 발견된 어휘 오류의 구체적인 교정 방법\n" +
+                        "2. 학생의 어휘력을 높이기 위한 맞춤형 학습 전략\n" +
+                        "3. 연령에 적합한 어휘 학습 접근 방식\n" +
+                        "4. 부모님과 선생님이 함께할 수 있는 실천 가능한 활동\n" +
+                        "5. 장기적인 어휘력 향상을 위한 지속 가능한 방법",
+                analysisResponse
+        );
+
+        // AI 생성 피드백 요청
+        String aiGeneratedFeedback = chatClient.call(feedbackPrompt);
+
+        // 결과 객체 생성
+        VocabularyFeedbackResponse feedback = new VocabularyFeedbackResponse(analysisResponse, aiGeneratedFeedback);
+
+        return feedback;
+    }
+
+
 
     public Integer countChats(Long quizId, Long userId) {
         State state = stateReader.findByQuizIdAndUserId(quizReader.findById(quizId), userReader.findById(userId))

src/main/resources/application-common.yml

@@ -5,6 +5,13 @@ spring:
     username: ${DB_USER}
     password: ${DB_PASSWORD}
 
+  ai:
+    openai:
+      api-key: ${GPT_API_KEY}
+      chat:
+        options:
+          model: gpt-4o
+
   logging:
     level:
       org: