지도 기능

server/build.gradle

@@ -25,6 +25,7 @@ dependencies {
     runtimeOnly 'com.mysql:mysql-connector-j'
     testImplementation "org.testcontainers:junit-jupiter:1.19.0"
     testImplementation 'org.testcontainers:mysql'
+    implementation group: 'org.hibernate', name: 'hibernate-spatial', version: '6.2.5.Final'
 
     //JWT
     implementation 'io.jsonwebtoken:jjwt-api:0.11.5'

server/src/main/java/com/project/yozmcafe/controller/CafeAdminController.java

@@ -13,10 +13,12 @@
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestPart;
 import org.springframework.web.multipart.MultipartFile;
 
+import com.project.yozmcafe.controller.dto.cafe.CafeCoordinateRequest;
 import com.project.yozmcafe.controller.dto.cafe.CafeRequest;
 import com.project.yozmcafe.controller.dto.cafe.CafeResponse;
 import com.project.yozmcafe.controller.dto.cafe.CafeUpdateRequest;
@@ -108,4 +110,11 @@ public ResponseEntity<String> saveMenuBoards(@PathVariable("cafeId") final Long
 
         return ResponseEntity.created(URI.create("/admin/cafes/" + cafeId)).build();
     }
+
+    @PostMapping("/{cafeId}/coordinate")
+    public ResponseEntity<String> saveCoordinate(@PathVariable("cafeId") final Long cafeId,
+                                                 @RequestBody final CafeCoordinateRequest cafeCoordinateRequest) {
+        cafeAdminService.saveCafeCoordinate(cafeId, cafeCoordinateRequest);
+        return ResponseEntity.created(URI.create("/admin/cafes/" + cafeId)).build();
+    }
 }

server/src/main/java/com/project/yozmcafe/controller/LocationController.java

@@ -0,0 +1,31 @@
+package com.project.yozmcafe.controller;
+
+import java.util.List;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.project.yozmcafe.controller.dto.cafe.CafeLocationRequest;
+import com.project.yozmcafe.controller.dto.cafe.CafeLocationResponse;
+import com.project.yozmcafe.service.LocationService;
+
+@RestController
+@RequestMapping("/cafes/location")
+public class LocationController {
+
+    private final LocationService locationService;
+
+    public LocationController(final LocationService locationService) {
+        this.locationService = locationService;
+    }
+
+    @GetMapping
+    public ResponseEntity<List<CafeLocationResponse>> findCafesFromLocation(
+            final CafeLocationRequest cafeLocationRequest) {
+        final List<CafeLocationResponse> cafesFromLocations = locationService.findCafesFromLocations(
+                cafeLocationRequest);
+        return ResponseEntity.ok(cafesFromLocations);
+    }
+}

server/src/main/java/com/project/yozmcafe/controller/dto/cafe/CafeCoordinateRequest.java

@@ -0,0 +1,15 @@
+package com.project.yozmcafe.controller.dto.cafe;
+
+import org.locationtech.jts.geom.Point;
+
+import com.project.yozmcafe.domain.cafe.Cafe;
+import com.project.yozmcafe.domain.cafe.GeometryGenerator;
+import com.project.yozmcafe.domain.cafe.coordinate.CafeCoordinate;
+
+public record CafeCoordinateRequest(double latitude, double longitude) {
+
+    public CafeCoordinate toCafeCoordinateWithCafe(final Cafe cafe) {
+        final Point point = GeometryGenerator.generatePointWithCoordinate(latitude, longitude);
+        return new CafeCoordinate(point, cafe);
+    }
+}

server/src/main/java/com/project/yozmcafe/controller/dto/cafe/CafeLocationRequest.java

@@ -0,0 +1,4 @@
+package com.project.yozmcafe.controller.dto.cafe;
+
+public record CafeLocationRequest(double latitude, double longitude, double latitudeDelta, double longitudeDelta) {
+}

server/src/main/java/com/project/yozmcafe/controller/dto/cafe/CafeLocationResponse.java

@@ -0,0 +1,16 @@
+package com.project.yozmcafe.controller.dto.cafe;
+
+import com.project.yozmcafe.domain.cafe.coordinate.dto.CafePinDto;
+
+public record CafeLocationResponse(Long id, String name, String address, double latitude, double longitude) {
+
+    public static CafeLocationResponse from(final CafePinDto cafePinDto) {
+        return new CafeLocationResponse(
+                cafePinDto.getId(),
+                cafePinDto.getName(),
+                cafePinDto.getAddress(),
+                cafePinDto.getLatitude(),
+                cafePinDto.getLongitude()
+        );
+    }
+}

server/src/main/java/com/project/yozmcafe/domain/cafe/GeometryGenerator.java

@@ -0,0 +1,51 @@
+package com.project.yozmcafe.domain.cafe;
+
+import org.locationtech.jts.geom.Coordinate;
+import org.locationtech.jts.geom.GeometryFactory;
+import org.locationtech.jts.geom.Point;
+
+import com.project.yozmcafe.controller.dto.cafe.CafeLocationRequest;
+
+public class GeometryGenerator {
+
+    private static final GeometryFactory GEOMETRY_FACTORY = new GeometryFactory();
+    /**
+     * SRID(Spatial Reference Identifier)는 고유한 공간 좌표 식별자입니다.
+     * <p>
+     * 그 중, 4326은 WGS84 경위도 좌표계를 의미합니다. GPS 기술에서도 사용되는 좌표계로 범용적으로 가장 널리 사용되는 좌표계입니다.
+     */
+    private static final int SRID = 4326;
+    private static final String STRING_POLYGON_FORMAT = "POLYGON((%s))";
+    private static final String STRING_GEOMETRY_DELIMITER = " ";
+    private static final String POINT_DELIMITER = ", ";
+
+    private GeometryGenerator() {
+    }
+
+    public static Point generatePointWithCoordinate(final double latitude, final double longitude) {
+        final Point point = GEOMETRY_FACTORY.createPoint(new Coordinate(longitude, latitude));
+        point.setSRID(SRID);
+        return point;
+    }
+
+    public static String generateStringPolygon(final CafeLocationRequest cafeLocationRequest) {
+        final double latitude = cafeLocationRequest.latitude();
+        final double longitude = cafeLocationRequest.longitude();
+        final double latitudeDelta = cafeLocationRequest.latitudeDelta();
+        final double longitudeDelta = cafeLocationRequest.longitudeDelta();
+
+        final String minLatitude = String.valueOf(latitude - latitudeDelta);
+        final String maxLatitude = String.valueOf(latitude + latitudeDelta);
+        final String minLongitude = String.valueOf(longitude - longitudeDelta);
+        final String maxLongitude = String.valueOf(longitude + longitudeDelta);
+
+        final String firstVertex = String.join(STRING_GEOMETRY_DELIMITER, minLatitude, maxLongitude);
+        final String secondVertex = String.join(STRING_GEOMETRY_DELIMITER, maxLatitude, maxLongitude);
+        final String thirdVertex = String.join(STRING_GEOMETRY_DELIMITER, maxLatitude, minLongitude);
+        final String fourthVertex = String.join(STRING_GEOMETRY_DELIMITER, minLatitude, minLongitude);
+
+        final String vertexes = String.join(POINT_DELIMITER, firstVertex, secondVertex, thirdVertex, fourthVertex,
+                firstVertex);
+        return String.format(STRING_POLYGON_FORMAT, vertexes);
+    }
+}

server/src/main/java/com/project/yozmcafe/domain/cafe/Images.java

@@ -1,18 +1,17 @@
 package com.project.yozmcafe.domain.cafe;
 
+import java.util.List;
+
 import jakarta.persistence.CollectionTable;
 import jakarta.persistence.ElementCollection;
 import jakarta.persistence.Embeddable;
-import jakarta.persistence.FetchType;
-
-import java.util.List;
 
 @Embeddable
 public class Images {
 
     private static final int REPRESENTATIVE_INDEX = 0;
 
-    @ElementCollection(fetch = FetchType.LAZY)
+    @ElementCollection
     @CollectionTable(name = "image")
     private List<String> urls;
 

server/src/main/java/com/project/yozmcafe/domain/cafe/coordinate/CafeCoordinate.java

@@ -0,0 +1,59 @@
+package com.project.yozmcafe.domain.cafe.coordinate;
+
+import static jakarta.persistence.GenerationType.IDENTITY;
+
+import org.locationtech.jts.geom.Point;
+
+import com.project.yozmcafe.domain.cafe.Cafe;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToOne;
+
+@Entity(name = "cafe_coordinate")
+public class CafeCoordinate {
+
+    @Id
+    @GeneratedValue(strategy = IDENTITY)
+    private Long id;
+
+    private Point coordinate;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    private Cafe cafe;
+
+    public CafeCoordinate() {
+    }
+
+    public CafeCoordinate(final Long id, final Point coordinate, final Cafe cafe) {
+        this.id = id;
+        this.coordinate = coordinate;
+        this.cafe = cafe;
+    }
+
+    public CafeCoordinate(final Point coordinate, final Cafe cafe) {
+        this(null, coordinate, cafe);
+    }
+
+    public double getLatitude() {
+        return coordinate.getY();
+    }
+
+    public double getLongitude() {
+        return coordinate.getX();
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public Point getCoordinate() {
+        return coordinate;
+    }
+
+    public Cafe getCafe() {
+        return cafe;
+    }
+}

server/src/main/java/com/project/yozmcafe/domain/cafe/coordinate/CafeCoordinateRepository.java

@@ -0,0 +1,22 @@
+package com.project.yozmcafe.domain.cafe.coordinate;
+
+import java.util.List;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import com.project.yozmcafe.domain.cafe.coordinate.dto.CafePinDto;
+
+public interface CafeCoordinateRepository extends JpaRepository<CafeCoordinate, Long> {
+
+    @Query(nativeQuery = true,
+            value = """
+                      SELECT c.id, c.name, c.address, ST_X(co.coordinate) AS latitude, ST_Y(co.coordinate) AS longitude
+                      FROM cafe_coordinate co
+                      JOIN cafe AS c
+                      ON co.cafe_id = c.id
+                      WHERE ST_CONTAINS(ST_GeomFromText(:area, 4326), co.coordinate);
+                    """)
+    List<CafePinDto> findCafePinsFromCoordinate(@Param("area") final String area);
+}

server/src/main/java/com/project/yozmcafe/domain/cafe/coordinate/RadiusCalculator.java

@@ -0,0 +1,17 @@
+package com.project.yozmcafe.domain.cafe.coordinate;
+
+public class RadiusCalculator {
+    private static final int METER_PER_DEGREE = 111_000;
+
+    private RadiusCalculator() {
+    }
+
+    public static double calculate(final double latitude, final double latitudeDelta, final double longitudeDelta) {
+        double radianLatitude = Math.toRadians(latitude);
+
+        double metersLatitude = latitudeDelta * METER_PER_DEGREE;
+        double metersLongitude = Math.cos(radianLatitude) * longitudeDelta * METER_PER_DEGREE;
+
+        return Math.min(metersLatitude, metersLongitude);
+    }
+}

server/src/main/java/com/project/yozmcafe/domain/cafe/coordinate/dto/CafePinDto.java

@@ -0,0 +1,13 @@
+package com.project.yozmcafe.domain.cafe.coordinate.dto;
+
+public interface CafePinDto {
+    Long getId();
+
+    String getName();
+
+    String getAddress();
+
+    double getLatitude();
+
+    double getLongitude();
+}

server/src/main/java/com/project/yozmcafe/service/CafeAdminService.java

@@ -1,34 +1,43 @@
 package com.project.yozmcafe.service;
 
+import static com.project.yozmcafe.exception.ErrorCode.NOT_EXISTED_CAFE;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+import com.project.yozmcafe.controller.dto.cafe.CafeCoordinateRequest;
 import com.project.yozmcafe.controller.dto.cafe.CafeRequest;
 import com.project.yozmcafe.controller.dto.cafe.CafeResponse;
 import com.project.yozmcafe.controller.dto.cafe.CafeUpdateRequest;
 import com.project.yozmcafe.domain.cafe.Cafe;
 import com.project.yozmcafe.domain.cafe.CafeRepository;
 import com.project.yozmcafe.domain.cafe.Images;
+import com.project.yozmcafe.domain.cafe.coordinate.CafeCoordinate;
+import com.project.yozmcafe.domain.cafe.coordinate.CafeCoordinateRepository;
 import com.project.yozmcafe.exception.BadRequestException;
+
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.PersistenceContext;
 import jakarta.persistence.Query;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Propagation;
-import org.springframework.transaction.annotation.Transactional;
-
-import java.util.List;
-import java.util.stream.Stream;
-
-import static com.project.yozmcafe.exception.ErrorCode.NOT_EXISTED_CAFE;
 
 @Service
 @Transactional(readOnly = true)
 public class CafeAdminService {
 
     private final CafeRepository cafeRepository;
+    private final CafeCoordinateRepository cafeCoordinateRepository;
     @PersistenceContext
     private final EntityManager entityManager;
 
-    public CafeAdminService(final CafeRepository cafeRepository, final EntityManager entityManager) {
+    public CafeAdminService(final CafeRepository cafeRepository,
+                            final CafeCoordinateRepository cafeCoordinateRepository,
+                            final EntityManager entityManager) {
         this.cafeRepository = cafeRepository;
+        this.cafeCoordinateRepository = cafeCoordinateRepository;
         this.entityManager = entityManager;
     }
 
@@ -40,13 +49,13 @@ public Long save(final CafeRequest cafeRequest, List<String> imageNames) {
 
     @Transactional
     public void update(final long cafeId, final CafeUpdateRequest request, List<String> images) {
-        final Cafe cafe = getOrThrow(cafeId);
+        final Cafe cafe = getCafeOrThrow(cafeId);
         final Cafe requestedCafe = request.toCafeWithId(cafeId, images);
 
         cafe.update(requestedCafe);
     }
 
-    private Cafe getOrThrow(final long cafeId) {
+    private Cafe getCafeOrThrow(final long cafeId) {
         return cafeRepository.findById(cafeId)
                 .orElseThrow(() -> new BadRequestException(NOT_EXISTED_CAFE));
     }
@@ -58,7 +67,7 @@ public List<CafeResponse> findAll() {
     }
 
     public CafeResponse findById(final long cafeId) {
-        final Cafe cafe = getOrThrow(cafeId);
+        final Cafe cafe = getCafeOrThrow(cafeId);
         return CafeResponse.fromUnLoggedInUser(cafe);
     }
 
@@ -75,7 +84,15 @@ public void delete(final long cafeId) {
     }
 
     public List<String> findImagesByCafeId(final Long cafeId) {
-        final Images images = getOrThrow(cafeId).getImages();
+        final Images images = getCafeOrThrow(cafeId).getImages();
         return images.getUrls();
     }
+
+    @Transactional
+    public Long saveCafeCoordinate(final Long cafeId, final CafeCoordinateRequest cafeCoordinateRequest) {
+        final Cafe cafe = getCafeOrThrow(cafeId);
+        final CafeCoordinate cafeCoordinate = cafeCoordinateRequest.toCafeCoordinateWithCafe(cafe);
+        cafeCoordinateRepository.save(cafeCoordinate);
+        return cafeCoordinate.getId();
+    }
 }