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[Feat] 챗봇 다국어 기능 추가 #52

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Merged
Enble merged 3 commits into from
Sep 12, 2025
Merged

[Feat] 챗봇 다국어 기능 추가 #52

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dc706ce
feat: 챗봇 다국어 지원 구현 (한국어/영어/일본어/중국어)
Enble Sep 12, 2025
b52a98d
fix: NPE 수정(language가 null인 경우 수정)
Enble Sep 12, 2025
2f50c2f
docs: GUIDE 문서 수정
Enble Sep 12, 2025
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274 changes: 179 additions & 95 deletions CHATBOT_GUIDE.md
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3 changes: 3 additions & 0 deletions src/main/java/com/mey/backend/domain/chatbot/dto/ChatContext.java
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Original file line number Diff line number Diff line change
Expand Up @@ -46,4 +46,7 @@ public class ChatContext {

@Schema(description = "대화 시작 시간 (타임스탬프)", example = "1693920000000")
private Long conversationStartTime;

@Schema(description = "사용자 언어", example = "ko", allowableValues = {"ko", "en", "ja", "zh"})
private String userLanguage;
}
4 changes: 4 additions & 0 deletions src/main/java/com/mey/backend/domain/chatbot/dto/ChatRequest.java
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Expand Up @@ -19,4 +19,8 @@ public class ChatRequest {

@Schema(description = "이전 대화에서 추출된 컨텍스트 정보")
private ChatContext context;

@Schema(description = "사용자 언어", example = "ko", allowableValues = {"ko", "en", "ja", "zh"})
@Builder.Default
private String language = "ko";
}
8 changes: 6 additions & 2 deletions src/main/java/com/mey/backend/domain/chatbot/dto/IntentClassificationResult.java
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Expand Up @@ -3,14 +3,12 @@
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.swagger.v3.oas.annotations.media.Schema;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Getter;

@Schema(description = "LLM 기반 의도 분류 결과")
@Getter
@Builder
@AllArgsConstructor
public class IntentClassificationResult {

@Schema(description = "분류된 의도", example = "CREATE_ROUTE")
Expand All @@ -32,6 +30,12 @@ public IntentClassificationResult(
this.reasoning = reasoning;
}

public IntentClassificationResult(UserIntent intent, double confidence, String reasoning) {
this.intent = intent;
this.confidence = confidence;
this.reasoning = reasoning;
}

public enum UserIntent {
CREATE_ROUTE("CREATE_ROUTE", "새로운 루트 생성/추천 요청"),
SEARCH_EXISTING_ROUTES("SEARCH_EXISTING_ROUTES", "기존에 만들어진 루트 검색 요청"),
Expand Down
30 changes: 15 additions & 15 deletions src/main/java/com/mey/backend/domain/chatbot/service/ChatResponseBuilder.java
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Expand Up @@ -29,6 +29,8 @@
public class ChatResponseBuilder {

private final ConversationManager conversationManager;
private final MessageTemplateService messageTemplateService;
private final LanguageService languageService;

/**
* 기본 질문 응답을 생성합니다.
Expand Down Expand Up @@ -64,9 +66,10 @@ public ChatResponse createQuestionResponse(String message, ChatContext context,
* 에러 응답을 생성합니다.
*/
public ChatResponse createErrorResponse(String message, ChatContext context) {
String language = context.getUserLanguage() != null ? context.getUserLanguage() : "ko";
return ChatResponse.builder()
.responseType(ChatResponse.ResponseType.QUESTION)
.message(message + " 다시 시도해주시겠어요?")
.message(message + " " + messageTemplateService.getErrorSuffix(language))
.context(context)
.build();
}
Expand All @@ -86,12 +89,13 @@ public ChatResponse createGeneralInfoResponse(String message, ChatContext contex
* 장소 정보 응답을 생성합니다.
*/
public ChatResponse createPlaceInfoResponse(String message, List<Place> places, ChatContext context) {
String language = context.getUserLanguage() != null ? context.getUserLanguage() : "ko";
List<ChatResponse.PlaceInfo> placeInfos = places.stream()
.map(place -> ChatResponse.PlaceInfo.builder()
.placeId(place.getPlaceId())
.name(place.getNameKo())
.description(place.getDescriptionKo())
.address(place.getAddressKo())
.name(languageService.getPlaceName(place, language))
.description(languageService.getPlaceDescription(place, language))
.address(languageService.getPlaceAddress(place, language))
.themes(place.getThemes())
.costInfo(place.getCostInfo())
.build())
Expand All @@ -111,9 +115,10 @@ public ChatResponse createPlaceInfoResponse(String message, List<Place> places,
public ChatResponse createExistingRoutesResponse(String message,
List<com.mey.backend.domain.route.entity.Route> routes,
ChatContext context) {
String language = context.getUserLanguage() != null ? context.getUserLanguage() : "ko";
List<ChatResponse.ExistingRoute> existingRoutes = routes.stream()
.limit(5) // 최대 5개 루트만 반환
.map(this::convertRouteToExistingRoute)
.map(route -> convertRouteToExistingRoute(route, language))
.toList();

return ChatResponse.builder()
Expand Down Expand Up @@ -163,16 +168,16 @@ public ChatResponse createAIRouteRecommendationResponse(String message,
/**
* Route 엔티티를 ExistingRoute DTO로 변환
*/
private ChatResponse.ExistingRoute convertRouteToExistingRoute(com.mey.backend.domain.route.entity.Route route) {
private ChatResponse.ExistingRoute convertRouteToExistingRoute(com.mey.backend.domain.route.entity.Route route, String language) {
// Theme enum을 String으로 변환
List<String> themeStrings = route.getThemes().stream()
.map(theme -> theme.getRouteTheme())
.toList();

return ChatResponse.ExistingRoute.builder()
.routeId(route.getId())
.title(route.getTitleKo())
.description(route.getDescriptionKo())
.title(languageService.getRouteTitle(route, language))
.description(languageService.getRouteDescription(route, language))
.estimatedCost(route.getTotalCost())
.durationMinutes(route.getTotalDurationMinutes())
.themes(themeStrings)
Expand All @@ -183,12 +188,7 @@ private ChatResponse.ExistingRoute convertRouteToExistingRoute(com.mey.backend.d
* 단계별 안내 메시지 생성
*/
public String generateStepMessage(ConversationState currentState, ChatContext context) {
return switch (currentState) {
case AWAITING_THEME -> "테마 선택이 필요해요. K-POP, K-드라마, K-푸드, K-패션 중 어떤 테마를 원하시나요?";
case AWAITING_REGION -> "좋습니다! " + (context.getTheme() != null ? context.getTheme().name() : "") + " 테마를 선택하셨네요. 어느 지역을 여행하고 싶으신가요?";
case AWAITING_DAYS -> (context.getRegion() != null ? context.getRegion() : "") + " 지역을 선택하셨네요! 몇 일 여행을 계획하고 계신가요?";
case READY_FOR_ROUTE -> "모든 정보가 준비되었습니다! 맞춤 루트를 생성해드릴게요.";
default -> "안내에 따라 정보를 입력해주세요.";
};
String language = context.getUserLanguage() != null ? context.getUserLanguage() : "ko";
return messageTemplateService.getStateMessage(currentState, language);
}
}
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