Feat : 파티 카테고리, 최신순, 거리순 정렬

src/main/java/ita/tinybite/domain/party/controller/PartyController.java

@@ -9,13 +9,15 @@
 import io.swagger.v3.oas.annotations.tags.Tag;
 import ita.tinybite.domain.auth.entity.JwtTokenProvider;
 import ita.tinybite.domain.party.dto.request.PartyCreateRequest;
+import ita.tinybite.domain.party.dto.request.PartyListRequest;
 import ita.tinybite.domain.party.dto.request.PartyQueryListResponse;
 import ita.tinybite.domain.party.dto.request.PartyUpdateRequest;
 import ita.tinybite.domain.party.dto.response.ChatRoomResponse;
 import ita.tinybite.domain.party.dto.response.PartyDetailResponse;
 import ita.tinybite.domain.party.dto.response.PartyListResponse;
 import ita.tinybite.domain.party.entity.PartyParticipant;
 import ita.tinybite.domain.party.enums.PartyCategory;
+import ita.tinybite.domain.party.enums.PartySortType;
 import ita.tinybite.domain.party.service.PartySearchService;
 import ita.tinybite.domain.party.service.PartyService;
 import ita.tinybite.global.response.APIResponse;
@@ -275,10 +277,42 @@ public ResponseEntity<PartyListResponse> getPartyList(
                     example = "ALL",
                     schema = @Schema(allowableValues = {"ALL", "DELIVERY", "GROCERY", "HOUSEHOLD"})
             )
-            @RequestParam(defaultValue = "ALL") PartyCategory category
-    ) {
-        PartyListResponse response = partyService.getPartyList(
-                userId, category);
+            @RequestParam(defaultValue = "ALL") PartyCategory category,
+            @RequestParam(required = false, defaultValue = "LATEST") PartySortType sortType,
+            @RequestParam(required = false) String userLat,
+            @RequestParam(required = false) String userLon
+            ) {
+        Double lat = null;
+        Double lon = null;
+        // 거리순 정렬 시 위치 정보 검증
+        if (sortType == PartySortType.DISTANCE) {
+            if (userLat == null || userLon == null) {
+                throw new IllegalArgumentException("거리순 정렬을 위해서는 현재 위치 정보가 필요합니다.");
+            }
+
+            try {
+                lat = Double.parseDouble(userLat);
+                lon = Double.parseDouble(userLon);
+            } catch (NumberFormatException e) {
+                throw new IllegalArgumentException(
+                        String.format("위치 정보 형식이 올바르지 않습니다. userLat: %s, userLon: %s", userLat, userLon)
+                );
+            }
+
+            // 위도/경도 범위 검증
+            if (lat < -90 || lat > 90 || lon < -180 || lon > 180) {
+                throw new IllegalArgumentException("위도/경도 값이 유효한 범위를 벗어났습니다.");
+            }
+        }
+
+        PartyListRequest request = PartyListRequest.builder()
+                .category(category)
+                .sortType(sortType)
+                .userLat(lat)
+                .userLon(lon)
+                .build();
+
+        PartyListResponse response = partyService.getPartyList(userId, request);
 
         return ResponseEntity.ok(response);
     }

src/main/java/ita/tinybite/domain/party/dto/request/PartyListRequest.java

@@ -0,0 +1,17 @@
+package ita.tinybite.domain.party.dto.request;
+
+import ita.tinybite.domain.party.enums.PartyCategory;
+import ita.tinybite.domain.party.enums.PartySortType;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class PartyListRequest {
+    private PartyCategory category;  // 필터: 카테고리
+    private PartySortType sortType;  // 정렬: 최신순/거리순
+
+    // 거리순 정렬을 위한 현재 위치 (선택)
+    private Double userLat;
+    private Double userLon;
+}

src/main/java/ita/tinybite/domain/party/dto/response/PartyCardResponse.java

@@ -3,6 +3,7 @@
 import ita.tinybite.domain.party.enums.ParticipantStatus;
 import ita.tinybite.domain.party.enums.PartyCategory;
 import ita.tinybite.domain.party.enums.PartyStatus;
+import ita.tinybite.global.util.DistanceCalculator;
 import lombok.*;
 
 import java.time.Duration;
@@ -20,7 +21,7 @@ public class PartyCardResponse {
     private Integer pricePerPerson; // 1/N 가격
     private String participantStatus; // "1/4명"
     private String distance; // "300m" or "1.2km" (화면 표시용)
-    private Double distanceKm; // km 단위 거리 (정렬용)
+    private String distanceKm; // km 단위 거리 (정렬용)
     private String timeAgo; // "10분 전", "3시간 전"
     private Boolean isClosed; // 마감 여부
     private PartyCategory category;
@@ -109,4 +110,9 @@ private static Boolean checkIfClosed(Party party, int currentParticipants) {
 
         return false;
     }
+
+    public void addDistanceKm(Double distance) {
+        this.distanceKm = DistanceCalculator.formatDistance(distance);
+        this.distance = Double.toString(distance);
+    }
 }

src/main/java/ita/tinybite/domain/party/enums/PartySortType.java

@@ -0,0 +1,15 @@
+package ita.tinybite.domain.party.enums;
+
+import lombok.Getter;
+
+@Getter
+public enum PartySortType {
+    LATEST("최신순"),
+    DISTANCE("거리순");
+
+    private final String description;
+
+    PartySortType(String description) {
+        this.description = description;
+    }
+}

src/main/java/ita/tinybite/domain/party/service/PartyService.java

@@ -4,33 +4,31 @@
 import ita.tinybite.domain.chat.enums.ChatRoomType;
 import ita.tinybite.domain.chat.repository.ChatRoomRepository;
 import ita.tinybite.domain.party.dto.request.PartyCreateRequest;
-import ita.tinybite.domain.party.dto.request.PartyQueryListResponse;
+import ita.tinybite.domain.party.dto.request.PartyListRequest;
 import ita.tinybite.domain.party.dto.request.PartyUpdateRequest;
 import ita.tinybite.domain.party.dto.response.*;
 import ita.tinybite.domain.party.entity.Party;
 import ita.tinybite.domain.party.entity.PartyParticipant;
 import ita.tinybite.domain.party.entity.PickupLocation;
 import ita.tinybite.domain.party.enums.ParticipantStatus;
 import ita.tinybite.domain.party.enums.PartyCategory;
+import ita.tinybite.domain.party.enums.PartySortType;
 import ita.tinybite.domain.party.enums.PartyStatus;
 import ita.tinybite.domain.party.repository.PartyParticipantRepository;
 import ita.tinybite.domain.party.repository.PartyRepository;
 import ita.tinybite.domain.user.entity.User;
 import ita.tinybite.domain.user.repository.UserRepository;
-
-import java.time.LocalDateTime;
-import java.util.List;
-import java.util.stream.Collectors;
-
 import ita.tinybite.global.location.LocationService;
 import ita.tinybite.global.util.DistanceCalculator;
 import lombok.RequiredArgsConstructor;
-import org.springframework.data.domain.Page;
-import org.springframework.data.domain.PageRequest;
-import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.time.LocalDateTime;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+
 
 @Service
 @RequiredArgsConstructor
@@ -42,6 +40,7 @@ public class PartyService {
     private final PartyParticipantRepository partyParticipantRepository;
     private final ChatRoomRepository chatRoomRepository;
     private final PartyParticipantRepository participantRepository;
+
     /**
      * 파티 생성
      */
@@ -105,72 +104,43 @@ public Long createParty(Long userId, PartyCreateRequest request) {
     /**
      * 파티 목록 조회 (홈 화면)
      */
-    public PartyListResponse getPartyList(Long userId, PartyCategory category) {
+    public PartyListResponse getPartyList(Long userId, PartyListRequest request) {
         User user = null;
         if (userId != null) {
             user = userRepository.findById(userId).orElse(null);
         }
 
         // 동네 기준으로 파티 조회
-        List<Party> parties = List.of();
-        if (user != null && user.getLocation() != null) {
-            if (category == PartyCategory.ALL) {
-                parties = partyRepository.findByPickupLocation_Place(user.getLocation());
-            } else {
-                parties = partyRepository.findByPickupLocation_PlaceAndCategory(
-                        user.getLocation(), category);
-            }
-        }
-//          else {
-//            // 비회원이거나 동네 미설정 시
-//            String location = locationService.getLocation(userLat, userLon);
-//            if (category == PartyCategory.ALL) {
-//                parties = partyRepository.findByPickupLocation_Place(location);
-//            } else {
-//                parties = partyRepository.findByPickupLocation_PlaceAndCategory(
-//                        location, category);
-//            }
-//        }
-
-//        List<PartyCardResponse> cardResponses = parties.stream()
-//                .map(party -> {
-//                    // DistanceCalculator 활용
-//                    double distance = DistanceCalculator.calculateDistance(
-//                            Double.parseDouble(userLat), Double.parseDouble(userLon),
-//                            party.getLatitude(), party.getLongitude()
-//                    );
-//                    return convertToCardResponse(party, distance, userId, party.getCreatedAt());
-//                })
-//                .collect(Collectors.toList());
-//
-//        // 진행 중 파티: 거리 가까운 순 정렬
-//        List<PartyCardResponse> activeParties = cardResponses.stream()
-//                .filter(p -> !p.getIsClosed())
-//                .sorted((a, b) -> Double.compare(a.getDistanceKm(), b.getDistanceKm()))
-//                .collect(Collectors.toList());
-//
-//        // 마감된 파티: 거리 가까운 순 정렬
-//        List<PartyCardResponse> closedParties = cardResponses.stream()
-//                .filter(PartyCardResponse::getIsClosed)
-//                .sorted((a, b) -> Double.compare(a.getDistanceKm(), b.getDistanceKm()))
-//                .collect(Collectors.toList());
-
+        List<Party> parties = fetchPartiesByLocation(user, request);
 
+        // PartyCardResponse로 변환
         List<PartyCardResponse> cardResponses = parties.stream()
-                .map(party -> convertToCardResponse(party, userId, party.getCreatedAt()))
+                .map(party -> {
+                    // 거리순 정렬인 경우 거리 계산
+                    if (request.getSortType() == PartySortType.DISTANCE) {
+                        double distance = DistanceCalculator.calculateDistance(
+                                request.getUserLat(),
+                                request.getUserLon(),
+                                party.getPickupLocation().getPickupLatitude(),
+                                party.getPickupLocation().getPickupLongitude()
+                        );
+                        return convertToCardResponseWithDistance(party, distance);
+                    }
+                    return convertToCardResponse(party,party.getCreatedAt());
+                })
+                .toList();
+
+        // 진행 중 파티 정렬
+        List<PartyCardResponse> activeParties = cardResponses.stream()
+                .filter(p -> !p.getIsClosed())
+                .sorted(getComparator(request.getSortType()))
                 .collect(Collectors.toList());
 
-        // 진행 중 파티: 최신순 정렬 (createdAt 기준 내림차순)
-                List<PartyCardResponse> activeParties = cardResponses.stream()
-                        .filter(p -> !p.getIsClosed())
-                        .sorted((a, b) -> b.getCreatedAt().compareTo(a.getCreatedAt()))
-                        .collect(Collectors.toList());
-
-        // 마감된 파티: 최신순 정렬 (createdAt 기준 내림차순)
-                List<PartyCardResponse> closedParties = cardResponses.stream()
-                        .filter(PartyCardResponse::getIsClosed)
-                        .sorted((a, b) -> b.getCreatedAt().compareTo(a.getCreatedAt()))
-                        .collect(Collectors.toList());
+        // 마감된 파티 정렬
+        List<PartyCardResponse> closedParties = cardResponses.stream()
+                .filter(PartyCardResponse::getIsClosed)
+                .sorted(getComparator(request.getSortType()))
+                .collect(Collectors.toList());
 
         return PartyListResponse.builder()
                 .activeParties(activeParties)
@@ -272,7 +242,7 @@ private String getDefaultImageIfEmpty(List<String> images, PartyCategory categor
         };
     }
 
-    private PartyCardResponse convertToCardResponse(Party party, Long userId,
+    private PartyCardResponse convertToCardResponse(Party party,
                                                     LocalDateTime createdAt) {
         int pricePerPerson = party.getPrice() / party.getMaxParticipants();
         String participantStatus = party.getCurrentParticipants() + "/"
@@ -675,6 +645,40 @@ private String formatDistanceIfExists(Double distance) {
         return distance!= null? DistanceCalculator.formatDistance(distance):null;
     }
 
+    //카테고리에 따라 파티 조회
+    private List<Party> fetchPartiesByLocation(User user, PartyListRequest request) {
+        if (user == null || user.getLocation() == null) {
+            return List.of();
+        }
+
+        String location = user.getLocation();
+        PartyCategory category = request.getCategory();
 
+        if (category == PartyCategory.ALL) {
+            return partyRepository.findByPickupLocation_Place(location);
+        } else {
+            return partyRepository.findByPickupLocation_PlaceAndCategory(location, category);
+        }
+    }
+
+    // 정렬 기준에 따른 Comparator 반환
+    private Comparator<PartyCardResponse> getComparator(PartySortType sortType) {
+        if (sortType == PartySortType.DISTANCE) {
+            // 거리 가까운 순
+            return Comparator.comparing(PartyCardResponse::getDistanceKm)
+                    .thenComparing((a, b) -> b.getCreatedAt().compareTo(a.getCreatedAt()));
+        } else {
+            // 최신순 (createdAt 내림차순)
+            return (a, b) -> b.getCreatedAt().compareTo(a.getCreatedAt());
+        }
+    }
+
+    // 거리 정보 포함 변환
+    private PartyCardResponse convertToCardResponseWithDistance(
+            Party party, Double distance) {
+        PartyCardResponse response = convertToCardResponse(party, party.getCreatedAt());
+        response.addDistanceKm(distance);
+        return response;
+    }
 }
 

src/main/java/ita/tinybite/global/util/DistanceCalculator.java

@@ -43,7 +43,7 @@ public static double calculateDistanceInMeters(double lat1, double lon1,
     public static String formatDistance(double distanceKm) {
         if (distanceKm < 1.0) {
             // 1km 미만: 미터 단위로 표시 (반올림)
-            return Math.round(distanceKm * 1000) + "m";
+            return String.format("%.1fkm", distanceKm);
         } else {
             // 1km 이상: km 단위로 표시 (소수점 1자리)
             return String.format("%.1fkm", distanceKm);