NCBACK-34 add logic to find similar image in db

Reviewed-on: #14

build.gradle

@@ -31,6 +31,12 @@ dependencies {
 	implementation 'org.mapstruct:mapstruct:1.5.5.Final'
 	implementation 'commons-validator:commons-validator:1.7'
 
+	implementation 'org.flywaydb:flyway-core:9.22.0'
+
+	implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.17.0'
+	implementation 'tools.jackson.core:jackson-core:3.0.3'
+	implementation 'jakarta.xml.bind:jakarta.xml.bind-api:4.0.0'
+
 	annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.5.Final'
 	annotationProcessor 'org.projectlombok:lombok'
 

docker-compose.yaml

@@ -58,13 +58,18 @@ services:
     environment:
       FILE_STORAGE_PATH: /data/uploads
       MAX_FILE_SIZE: 10737418240
-      FILE_CHUNK_SIZE: 1048576
+#      FILE_CHUNK_SIZE: 1048576
+      FILE_CHUNK_SIZE: 1000000
       POSTGRES_DB: no_copy_
       POSTGRES_USER: postgres
       POSTGRES_PASSWORD: postgres
       POSTGRES_PORT: 5432
       POSTGRES_HOST: db
       STORAGE_SERVICE_URL: http://storage:8081
+      SPRING_PROFILES_ACTIVE: docker
+      YANDEX_API_KEY: AQVNyaVaUmgUb1GMCtf5zSEqFxy0woXrcMOOB43q
+      YANDEX_FOLDER_ID: b1gokpdbm6qfpsou8pcd
+      YANDEX_SEARCH_URL: "https://searchapi.api.cloud.yandex.net/v2/image/search_by_image"
     depends_on:
       - db
     ports:
@@ -120,7 +125,7 @@ services:
   prometheus:
     image: prom/prometheus:latest
     container_name: prometheus
-    deploy:  # ← ДОБАВЛЕНО
+    deploy:
       resources:
         limits:
           cpus: '0.5'
@@ -148,7 +153,7 @@ services:
   loki:
     image: grafana/loki:2.9.2
     container_name: loki
-    deploy:  # ← ДОБАВЛЕНО
+    deploy:
       resources:
         limits:
           cpus: '1.0'
@@ -173,7 +178,7 @@ services:
   tempo:
     image: grafana/tempo:2.4.1
     container_name: tempo
-    deploy:  # ← ДОБАВЛЕНО
+    deploy:
       resources:
         limits:
           cpus: '0.5'

infrastructure/jenkins/deploy.groovy

@@ -7,7 +7,6 @@ pipeline {
                 defaultValue: 'dev',
                 description: 'Ветка для деплоя'
         )
-
         string(
                 name: 'SERVER',
                 defaultValue: '92.242.61.23',
@@ -51,156 +50,57 @@ pipeline {
                             sshpass -p '$SSH_PASS' ssh -o StrictHostKeyChecking=no $SSH_USER@$SERVER "
                                 cd /opt/deployments/${params.BRANCH}
                                 
-                                echo '========================================'
+                                echo '1. Остановка старого приложения...'
-                                echo 'Step 1: Checking current state...'
+                                docker stop app-backend 2>/dev/null || echo 'Контейнер не найден'
-                                echo '========================================'
+                                docker rm app-backend 2>/dev/null || echo 'Контейнер не найден'
                                 
-                                docker ps --filter 'name=postgres|app-backend|storage|grafana|prometheus|loki|tempo|alloy' --format 'table {{.Names}}\\t{{.Image}}\\t{{.Status}}'
+                                echo '2. Удаление старых образов...'
+                                docker images --filter 'reference=*app*' -q | xargs -r docker rmi -f 2>/dev/null || echo 'Нет образов для удаления'
                                 
-                                echo '========================================'
+                                echo '3. Создание сети если нужно...'
-                                echo 'Step 2: Setup environment for compatibility...'
+                                docker network create app-network 2>/dev/null || echo 'Сеть уже существует'
-                                echo '========================================'
                                 
-                                docker network create app-network 2>/dev/null || echo 'Network app-network already exists'
+                                echo '4. Запуск инфраструктуры...'
+                                docker-compose up -d db storage
                                 
-                                echo 'COMPOSE_COMPATIBILITY=true' > .env
+                                echo '5. Ожидание PostgreSQL...'
+                                sleep 10
                                 
-                                echo '========================================'
+                                echo '6. Сборка нового образа приложения...'
-                                echo 'Step 3: Force cleanup old application...'
+                                docker build --no-cache -t app-backend:latest .
-                                echo '========================================'
                                 
-                                docker-compose --compatibility down 2>/dev/null || echo 'No previous compose stack'
+                                echo '7. Запуск приложения...'
+                                docker run -d \\
+                                  --name app-backend \\
+                                  --network app-network \\
+                                  --network-alias app \\
+                                  -p 80:8080 \\
+                                  -v uploads_data:/data/uploads:rw \\
+                                  -e POSTGRES_DB=no_copy_ \\
+                                  -e POSTGRES_USER=postgres \\
+                                  -e POSTGRES_PASSWORD=postgres \\
+                                  -e POSTGRES_PORT=5432 \\
+                                  -e POSTGRES_HOST=db \\
+                                  --restart unless-stopped \\
+                                  app-backend:latest
                                 
-                                docker images --filter 'reference=*app-backend*' -q | xargs -r docker rmi -f 2>/dev/null || echo 'No images to remove'
+                                echo '8. Запуск мониторинга...'
+                                docker-compose up -d grafana prometheus loki tempo alloy
                                 
-                                echo '========================================'
+                                echo '9. Проверка...'
-                                echo 'Step 4: Verify files and fix compose...'
+                                sleep 5
-                                echo '========================================'
                                 
-                                if [ ! -f docker-compose.yaml ]; then
+                                echo 'Статус контейнеров:'
-                                    echo 'ERROR: docker-compose.yaml not found!'
+                                docker ps --format 'table {{.Names}}\\t{{.Image}}\\t{{.Status}}'
-                                    ls -la
-                                    exit 1
-                                fi
                                 
-                                echo 'Checking docker-compose.yaml syntax...'
+                                echo '10. Проверка health...'
-                                docker-compose --compatibility config 2>&1 | head -20 || echo 'Config check output'
+                                if curl -s -f http://localhost:80/health > /dev/null 2>&1; then
-                                
+                                    echo 'Приложение работает'
-                                echo '========================================'
+                                    echo 'URL: http://${params.SERVER}:80'
-                                echo 'Step 5: Start infrastructure services...'
-                                echo '========================================'
-                                
-                                echo 'Starting PostgreSQL with resource limits...'
-                                docker-compose --compatibility up -d db
-                                
-                                echo 'Starting storage service...'
-                                docker-compose --compatibility up -d storage
-                                
-                                echo 'Waiting for PostgreSQL to be ready...'
-                                for i in {1..30}; do
-                                    if docker-compose --compatibility exec db pg_isready -U postgres 2>/dev/null; then
-                                        echo 'PostgreSQL is ready'
-                                        break
-                                    fi
-                                    echo 'Waiting... attempt ' \$i
-                                    sleep 2
-                                done
-                                
-                                echo '========================================'
-                                echo 'Step 6: Build application image...'
-                                echo '========================================'
-                                
-                                if [ ! -f Dockerfile ]; then
-                                    echo 'ERROR: Dockerfile not found!'
-                                    exit 1
-                                fi
-                                
-                                echo 'Building Docker image...'
-                                docker build --no-cache -t app-backend:latest . 2>&1 | tail -30
-                                
-                                echo 'Image created successfully'
-                                docker images app-backend:latest --format 'table {{.Repository}}\\t{{.Tag}}\\t{{.Size}}\\t{{.CreatedAt}}'
-                                
-                                echo '========================================'
-                                echo 'Step 7: Start application with resource limits...'
-                                echo '========================================'
-                                
-                                docker volume create uploads_data 2>/dev/null || echo 'Volume uploads_data already exists'
-                                
-                                echo 'Starting main application...'
-                                docker-compose --compatibility up -d app
-                                
-                                echo 'Waiting for application to start...'
-                                sleep 15
-                                
-                                echo '========================================'
-                                echo 'Step 8: Start monitoring stack...'
-                                echo '========================================'
-                                
-                                docker-compose --compatibility up -d grafana prometheus loki tempo alloy
-                                
-                                echo '========================================'
-                                echo 'Step 9: Verify deployment...'
-                                echo '========================================'
-                                
-                                echo 'All containers status:'
-                                docker-compose --compatibility ps
-                                
-                                echo ''
-                                echo 'Resource limits check:'
-                                echo 'App backend limits:'
-                                docker inspect app-backend --format='{{.HostConfig.Memory}} {{.HostConfig.CpuQuota}} {{.HostConfig.CpuPeriod}}' 2>/dev/null || echo 'Cannot inspect'
-                                
-                                echo ''
-                                echo 'PostgreSQL limits:'
-                                docker inspect postgres --format='{{.HostConfig.Memory}} {{.HostConfig.CpuQuota}} {{.HostConfig.CpuPeriod}}' 2>/dev/null || echo 'Cannot inspect'
-                                
-                                echo ''
-                                echo 'Container resource usage:'
-                                docker stats --no-stream --format 'table {{.Name}}\\t{{.CPUPerc}}\\t{{.MemUsage}}\\t{{.MemPerc}}' postgres app-backend storage 2>/dev/null || echo 'Stats not available'
-                                
-                                echo '========================================'
-                                echo 'Step 10: Health checks...'
-                                echo '========================================'
-                                
-                                echo 'Application health check...'
-                                for i in {1..10}; do
-                                    if curl -s -f http://localhost:80/health 2>/dev/null; then
-                                        echo '✓ Application health check PASSED'
-                                        break
-                                    elif [ \$i -eq 10 ]; then
-                                        echo '✗ Application health check FAILED'
-                                        echo 'Last logs:'
-                                        docker-compose --compatibility logs --tail=20 app
-                                    else
-                                        echo 'Waiting for application... attempt ' \$i
-                                        sleep 5
-                                    fi
-                                done
-                                
-                                echo 'Checking monitoring services...'
-                                if curl -s -f http://localhost:3000/api/health 2>/dev/null; then
-                                    echo '✓ Grafana is healthy'
                                 else
-                                    echo '⚠ Grafana may be starting'
+                                    echo 'Проверка health не удалась'
+                                    docker logs app-backend --tail=20
                                 fi
-                                
-                                if curl -s -f http://localhost:9090/-/healthy 2>/dev/null; then
-                                    echo '✓ Prometheus is healthy'
-                                fi
-                                
-                                echo '========================================'
-                                echo 'Deployment Summary:'
-                                echo '========================================'
-                                echo 'Application URL: http://${params.SERVER}:80'
-                                echo 'Grafana: http://${params.SERVER}:3000 (admin/admin)'
-                                echo 'Prometheus: http://${params.SERVER}:9090'
-                                echo 'Loki: http://${params.SERVER}:3100'
-                                echo ''
-                                echo 'To view logs: docker-compose logs -f app'
-                                echo 'To view all containers: docker-compose ps'
-                                echo 'To stop: docker-compose down'
-                                echo '========================================'
                             "
                         """
                     }
@@ -213,8 +113,6 @@ pipeline {
         success {
             echo "Deployment successful"
             echo "Application URL: http://${params.SERVER}:80"
-            echo "Grafana: http://${params.SERVER}:3000"
-            echo "Prometheus: http://${params.SERVER}:9090"
         }
         failure {
             echo "Deployment failed for branch ${params.BRANCH}"

src/main/java/ru/soune/nocopy/configuration/HandlerConfig.java

@@ -16,7 +16,8 @@ public class HandlerConfig {
             LoginRequestHandler login,
             FileUploadHandler upload,
             FileEntityHandler file,
-            LogoutRequestHandler logoutHandler
+            LogoutRequestHandler logoutHandler,
+            ImageFoundRequestHandler imageFoundRequestHandler
     ) {
         Map<Integer, RequestHandler> map = new HashMap<>();
         map.put(20001, login);
@@ -24,6 +25,7 @@ public class HandlerConfig {
         map.put(20004, upload);
         map.put(20005, file);
         map.put(20006, logoutHandler);
+        map.put(20007, imageFoundRequestHandler);
 
         return map;
     }

src/main/java/ru/soune/nocopy/configuration/JacksonConfig.java

@@ -35,6 +35,8 @@ public class JacksonConfig {
 
         mapper.registerModule(javaTimeModule);
         mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        mapper.configure(com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+        mapper.enable(SerializationFeature.INDENT_OUTPUT);
 
         return mapper;
     }

src/main/java/ru/soune/nocopy/controller/ApiController.java

@@ -15,16 +15,14 @@ import ru.soune.nocopy.dto.BaseRequest;
 import ru.soune.nocopy.dto.BaseResponse;
 import ru.soune.nocopy.dto.MessageCode;
 import ru.soune.nocopy.dto.RegAnswer;
-import ru.soune.nocopy.dto.file.ChunkUploadResponse;
+import ru.soune.nocopy.dto.file.*;
-import ru.soune.nocopy.dto.file.CompleteUploadResponse;
+import ru.soune.nocopy.entity.AuthToken;
-import ru.soune.nocopy.dto.file.FileEntityResponse;
-import ru.soune.nocopy.dto.file.UploadProgress;
-import ru.soune.nocopy.entity.auth.AuthToken;
 import ru.soune.nocopy.entity.file.FileStatus;
 import ru.soune.nocopy.entity.file.UploadStatus;
 import ru.soune.nocopy.exception.*;
 import ru.soune.nocopy.handler.*;
 import ru.soune.nocopy.repository.AuthTokenRepository;
+import ru.soune.nocopy.service.FileSimilarityService;
 import ru.soune.nocopy.service.file.FileEntityService;
 import ru.soune.nocopy.service.file.FileUploadService;
 
@@ -50,6 +48,8 @@ public class ApiController {
 
     private final AuthTokenRepository authTokenRepository;
 
+    private final FileSimilarityService fileSimilarityService;
+
     @PostMapping("/v{version}/data")
     public ResponseEntity<?> handlePostRequest(@RequestBody BaseRequest request,
                                                @PathVariable("version") int version) {
@@ -127,6 +127,16 @@ public class ApiController {
 
             return ResponseEntity.ok().body(new BaseResponse(20004, MessageCode.SUCCESS.getCode(),
                     "Chunk uploaded successfully", responseBody));
+        } catch (DuplicateImageException e) {
+            log.error("Error uploading chunk", e);
+            ChunkUploadResponse responseBody = ChunkUploadResponse.builder()
+                    .uploadId(uploadId)
+                    .chunkNumber(chunkNumber)
+                    .build();
+
+            return ResponseEntity.ok().body(new BaseResponse(
+                    20004, MessageCode.DUPLICATE_FILE_UPLOAD.getCode(),
+                    "Failed to upload chunk: " + e.getMessage(), responseBody));
         } catch (Exception e) {
             log.error("Error uploading chunk", e);
 
@@ -141,6 +151,11 @@ public class ApiController {
         }
     }
 
+    @GetMapping("/files/{fileId}/similar")
+    public List<SimilarFileResponse> getSimilarFiles(@PathVariable String fileId) {
+        return fileSimilarityService.findSimilarFiles(fileId);
+    }
+
     @GetMapping("/v{version}/files/progress/{uploadId}")
     public ResponseEntity<BaseResponse> getUploadProgress(
             @PathVariable("version") int version,
@@ -368,18 +383,6 @@ public class ApiController {
         return contentType;
     }
 
-    private boolean isPreviewSupported(String mimeType) {
-        if (mimeType == null) {
-            return false;
-        }
-
-        return mimeType.startsWith("image") ||
-                mimeType.startsWith("text") ||
-                mimeType.equals("pdf") ||
-                mimeType.startsWith("video") ||
-                mimeType.startsWith("audio");
-    }
-
     private Long getUserIdFromToken(String tokenHeader) {
         String token = tokenHeader.replace("Bearer ", "");
         AuthToken authToken = authTokenRepository.findByToken(token)

src/main/java/ru/soune/nocopy/controller/UserController.java

@@ -6,7 +6,7 @@ import org.springframework.web.bind.annotation.*;
 import ru.soune.nocopy.dto.ChangePasswordRequest;
 import ru.soune.nocopy.dto.UserDTO;
 import ru.soune.nocopy.dto.UserRequest;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 import ru.soune.nocopy.entity.User;
 import ru.soune.nocopy.exception.InvalidUserEmail;
 import ru.soune.nocopy.exception.NotFoundAuthToken;

src/main/java/ru/soune/nocopy/controller/VkAuthController.java

@@ -1,93 +0,0 @@
-package ru.soune.nocopy.controller;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
-import ru.soune.nocopy.dto.BaseResponse;
-import ru.soune.nocopy.dto.LoginAnswer;
-import ru.soune.nocopy.dto.MessageCode;
-import ru.soune.nocopy.entity.User;
-import ru.soune.nocopy.entity.auth.AuthToken;
-import ru.soune.nocopy.service.AuthService;
-import ru.soune.nocopy.service.VkOAuthService;
-import ru.soune.nocopy.service.auth.ExternalAuthUserService;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-@RestController
-@RequestMapping("/api")
-@RequiredArgsConstructor
-@Slf4j
-public class VkAuthController {
-
-    private final VkOAuthService vkOAuthService;
-
-    private final AuthService authService;
-
-    private final ExternalAuthUserService externalAuthUserService;
-
-    @GetMapping("/v{version}/vk/authorization/{code}/{state}/{codeVerifier}/{deviceId}")
-    public BaseResponse vkAuth(@PathVariable("code") String code,
-                                              @PathVariable("state") String state,
-                                              @PathVariable("codeVerifier") String codeVerifier,
-                                              @PathVariable("deviceId") String deviceId) {
-        try {
-            Map<String, Object> authMap = vkOAuthService.authTokenMap(code, state, codeVerifier, deviceId);
-            ObjectMapper mapper = new ObjectMapper();
-
-            String bodyJson = (String) authMap.get("body");
-            Map<String, Object> body = mapper.readValue(bodyJson, Map.class);
-
-            String accessToken = (String) body.get("access_token");
-            long vkUserId = ((Number) body.get("user_id")).longValue();
-            Integer expiresIn = (Integer) body.get("expires_in");
-            String refreshToken = (String) body.get("refresh_token");
-
-            Map<String, Object> vkUserInfo = vkOAuthService.userVkInfo(accessToken);
-            log.info("vkUserInfo {}", vkUserInfo);
-
-            String userInfoBodyJson = (String) vkUserInfo.get("body");
-            Map<String, Object> userInfoBody = mapper.readValue(userInfoBodyJson, Map.class);
-            Map<String, Object> user = (Map<String, Object>) userInfoBody.get("user");
-
-            String firstName = (String) user.get("first_name");
-            String lastName = (String) user.get("last_name");
-            String fullName = firstName + " " + lastName;
-
-            User userEntity = externalAuthUserService.findOrCreateUserFromVK(Long.toString(vkUserId), fullName,
-                    null, accessToken, refreshToken, expiresIn);
-
-            AuthToken ourToken = authService.createTokenForUser(userEntity);
-
-            LoginAnswer loginAnswer = new LoginAnswer();
-            loginAnswer.setToken(ourToken.getToken());
-            loginAnswer.setFieldErrors(new ArrayList<>());
-
-            return new BaseResponse(20009, MessageCode.SUCCESS.getCode(),
-                    MessageCode.SUCCESS.getDescription(), loginAnswer);
-        } catch (Exception e) {
-            log.error("VK auth error: ", e);
-
-            LoginAnswer loginAnswer = new LoginAnswer();
-            loginAnswer.setToken(null);
-
-            List<Map<String, String>> errors = new ArrayList<>();
-            Map<String, String> error = new HashMap<>();
-            error.put("field", "vk_auth");
-            error.put("message", e.getMessage());
-            errors.add(error);
-
-            loginAnswer.setFieldErrors(errors);
-
-            return new BaseResponse(20009, MessageCode.SUCCESS.getCode(),
-                    MessageCode.SUCCESS.getDescription(), loginAnswer);
-        }
-    }
-}
-

src/main/java/ru/soune/nocopy/dto/AuthResponse.java

@@ -0,0 +1,10 @@
+package ru.soune.nocopy.dto;
+
+import java.time.LocalDateTime;
+
+public record AuthResponse (
+        boolean success,
+        String message,
+        String token,
+        LocalDateTime expiresAt
+) {}

src/main/java/ru/soune/nocopy/dto/MessageCode.java

@@ -8,8 +8,10 @@ public enum MessageCode {
     INVALID_TOKEN(2, "Invalid token"),
     INVALID_ACTION(2, "Invalid action"),
     FILE_UPLOAD_ERROR(2, "File upload error"),
+    DUPLICATE_FILE_UPLOAD(2, "Duplicate file upload"),
     FILE_DOWNLOAD_ERROR(2, "File download error"),
     FILE_DOWNLOAD_ERROR_NOT_CORRECT_FIELD(2, "Not correct field"),
+    IMAGE_FOUND_ERROR(2, "Image found error"),
     INVALID_JSON_BODY(2, "Invalid fields in JSON object"),
     INCOMPLETE_UPLOAD(2, "Not load all chunks"),
     MSG_ID_NOT_FOUND(4, "Message id not found"),

src/main/java/ru/soune/nocopy/dto/file/ImageSearchRequest.java

@@ -0,0 +1,10 @@
+package ru.soune.nocopy.dto.file;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+@Data
+public class ImageSearchRequest {
+    @JsonProperty("file_id")
+    private String fileId;
+}

src/main/java/ru/soune/nocopy/dto/file/SimilarFileResponse.java

@@ -0,0 +1,14 @@
+package ru.soune.nocopy.dto.file;
+
+import lombok.Builder;
+import lombok.Value;
+
+@Value
+@Builder
+public class SimilarFileResponse {
+    String fileId;
+    String originalFileName;
+    Long fileSize;
+    Integer hammingDistance;
+    String similarityLevel;
+}

src/main/java/ru/soune/nocopy/dto/file/YandexSearchResponse.java

@@ -0,0 +1,36 @@
+package ru.soune.nocopy.dto.file;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+import java.util.List;
+
+@Data
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class YandexSearchResponse {
+
+    @JsonProperty("images")
+    private List<ImageResult> images;
+
+    @Data
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static class ImageResult {
+        @JsonProperty("url")
+        private String url;
+
+        @JsonProperty("pageUrl")
+        private String pageUrl;
+
+        @JsonProperty("pageTitle")
+        private String pageTitle;
+
+        @JsonProperty("width")
+        private Integer width;
+
+        @JsonProperty("height")
+        private Integer height;
+
+        @JsonProperty("host")
+        private String host;
+    }
+}

src/main/java/ru/soune/nocopy/entity/AuthToken.java

@@ -1,10 +1,9 @@
-package ru.soune.nocopy.entity.auth;
+package ru.soune.nocopy.entity;
 
 import jakarta.persistence.*;
 import lombok.*;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.jpa.domain.support.AuditingEntityListener;
-import ru.soune.nocopy.entity.User;
 
 import java.time.LocalDateTime;
 
@@ -31,7 +30,7 @@ public class AuthToken {
     private String token;
 
     @Column(name = "expires_at", nullable = false)
-    private LocalDateTime expiresAt = LocalDateTime.now().plusHours(1);
+    private LocalDateTime expiresAt = LocalDateTime.now().plusDays(30);
 
     @CreatedDate
     @Column(name = "created_at", updatable = false, nullable = false)

src/main/java/ru/soune/nocopy/entity/User.java

@@ -6,14 +6,11 @@ import jakarta.validation.constraints.Size;
 import lombok.*;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.jpa.domain.support.AuditingEntityListener;
-import ru.soune.nocopy.entity.auth.AuthToken;
-import ru.soune.nocopy.entity.auth.ExternalAuthProvider;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Optional;
 
 @Entity
 @Table(name = "users")
@@ -22,19 +19,18 @@ import java.util.Optional;
 @NoArgsConstructor
 @AllArgsConstructor
 @ToString
-@Builder
 @EntityListeners(AuditingEntityListener.class)
 public class User {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
+    private Long Id;
 
     @Column(name = "full_name", nullable = false)
     private String fullName;
 
-    @Size(max = 255)
+    @Size(max = 1024)
-    @Column(name = "email", nullable = false, length = 255, unique = true)
+    @Column(name = "email", nullable = false, length = 1024, unique = true)
     private String email;
 
     @Column(name = "company")
@@ -94,14 +90,4 @@ public class User {
     @JsonIgnore
     @ToString.Exclude
     private List<ImageProtection> imageProtections = new ArrayList<>();
-
-    @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @ToString.Exclude
-    private List<ExternalAuthProvider> externalAuthProviders = new ArrayList<>();
-
-    public Optional<ExternalAuthProvider> getProvider(ExternalAuthProvider.ProviderType providerType) {
-        return externalAuthProviders.stream()
-                .filter(p -> p.getProviderType() == providerType)
-                .findFirst();
-    }
 }

src/main/java/ru/soune/nocopy/entity/auth/ExternalAuthProvider.java

@@ -1,89 +0,0 @@
-package ru.soune.nocopy.entity.auth;
-
-import jakarta.persistence.*;
-import lombok.*;
-import org.springframework.data.annotation.CreatedDate;
-import org.springframework.data.jpa.domain.support.AuditingEntityListener;
-import ru.soune.nocopy.entity.User;
-
-import java.time.LocalDateTime;
-
-@Entity
-@Table(name = "external_auth_providers",
-        uniqueConstraints = @UniqueConstraint(
-                columnNames = {"provider_type", "provider_user_id"}
-        ),
-        indexes = {
-                @Index(name = "idx_provider_type_user_id",
-                        columnList = "provider_type, provider_user_id"),
-                @Index(name = "idx_user_id_provider_type",
-                        columnList = "user_id, provider_type")
-        })
-@Getter @Setter
-@NoArgsConstructor
-@AllArgsConstructor
-@Builder
-@EntityListeners(AuditingEntityListener.class)
-public class ExternalAuthProvider {
-
-    public enum ProviderType {
-        VK, YANDEX
-    }
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "user_id", nullable = false, foreignKey = @ForeignKey(name = "fk_extauth_user"))
-    @ToString.Exclude
-    private User user;
-
-    @Enumerated(EnumType.STRING)
-    @Column(name = "provider_type", nullable = false, length = 20)
-    private ProviderType providerType;
-
-    @Column(name = "provider_user_id", nullable = false, length = 255)
-    private String providerUserId;
-
-    @Column(name = "access_token", length = 2048)
-    private String accessToken;
-
-    @Column(name = "refresh_token", length = 2048)
-    private String refreshToken;
-
-    @Column(name = "token_expires_at")
-    private LocalDateTime tokenExpiresAt;
-
-    @Column(name = "email", length = 255)
-    private String email;
-
-    @Column(name = "phone", length = 20)
-    private String phoneNumber;
-
-    @CreatedDate
-    @Column(name = "linked_at", updatable = false)
-    private LocalDateTime linkedAt;
-
-    @Column(name = "last_used_at")
-    private LocalDateTime lastUsedAt;
-
-    @Column(name = "is_active")
-    @Builder.Default
-    private Boolean isActive = true;
-
-    @PrePersist
-    public void prePersist() {
-        if (this.linkedAt == null) {
-            this.linkedAt = LocalDateTime.now();
-        }
-        if (this.lastUsedAt == null) {
-            this.lastUsedAt = LocalDateTime.now();
-        }
-    }
-
-    @PreUpdate
-    public void preUpdate() {
-        this.lastUsedAt = LocalDateTime.now();
-    }
-}

src/main/java/ru/soune/nocopy/entity/file/FileType.java

@@ -7,21 +7,10 @@ import java.util.List;
 
 @Getter
 public enum FileType {
-    IMAGE("image", Arrays.asList("jpg", "jpeg", "png", "gif", "bmp", "webp")),
+    IMAGE("image", Arrays.asList("jpg", "jpeg", "png", "gif", "bmp", "webp", "jfif")),
     VIDEO("video", Arrays.asList("mp4", "avi", "mov", "wmv", "flv", "mkv", "webm", "m4v", "mpg", "mpeg",
             "3gp", "3g2", "f4v", "m2ts", "mts", "vob", "ogv", "divx")),
-    AUDIO("audio", Arrays.asList("mp3", "wav", "flac")),
+    AUDIO("audio", Arrays.asList("mp3", "wav", "flac"));
-    DOCUMENT("document", Arrays.asList(
-            "pdf", "txt", "rtf",
-            "doc", "docx", "xls", "xlsx", "ppt", "pptx", "pps", "ppsx", "dot", "dotx", "xlt", "xltx", "pot", "potx",
-            "odt", "ods", "odp", "odg", "odf", "odb", "odc", "odi", "odm", "ott", "ots", "otp", "otg", "oth",
-            "sxw", "sxc", "sxi", "sxd", "sxg", "stc", "sti", "stw", "sxm",
-            "pages", "numbers", "key",
-            "csv", "tsv", "xml", "html", "htm", "tex", "md", "markdown",
-            "epub", "mobi", "azw", "azw3", "fb2",
-            "wps", "wpt", "et", "dps", "vsd", "vsdx",
-            "java", "py", "cpp", "c", "h", "js", "css", "php", "sql", "json", "yaml", "yml", "sh", "bat",
-            "one", "note"));
 
     private final String displayName;
     private final List<String> allowedExtensions;

src/main/java/ru/soune/nocopy/entity/file/FileUploadSession.java

@@ -69,6 +69,7 @@ public class FileUploadSession {
     private String extension;
 
     @Column(name = "retry_count")
+    @Builder.Default
     private Integer retryCount = 0;
 
     @Column(name = "completed_at")
@@ -81,6 +82,7 @@ public class FileUploadSession {
     )
     @MapKeyColumn(name = "chunk_number")
     @Column(name = "chunk_path")
+    @Builder.Default
     private Map<Integer, String> chunkPaths = new HashMap<>();
 
     @PrePersist

src/main/java/ru/soune/nocopy/entity/file/ImageHashEntity.java

@@ -0,0 +1,39 @@
+package ru.soune.nocopy.entity.file;
+
+import jakarta.persistence.*;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Table(name = "image_hashes")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class ImageHashEntity {
+
+    @Id
+    @Column(name = "file_id")
+    private String fileId;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    @MapsId
+    @JoinColumn(name = "file_id")
+    private FileEntity file;
+
+    @Column(name = "hash64_hi")
+    private Integer hash64Hi;
+
+    @Column(name = "hash64_lo")
+    private Integer hash64Lo;
+
+    @Column(name = "hash_algorithm", nullable = false)
+    private String hashAlgorithm;
+
+    @Column(name = "created_at")
+    private LocalDateTime createdAt;
+}

src/main/java/ru/soune/nocopy/exception/DuplicateImageException.java

@@ -0,0 +1,7 @@
+package ru.soune.nocopy.exception;
+
+public class DuplicateImageException extends RuntimeException {
+    public DuplicateImageException(String message) {
+        super(message);
+    }
+}

src/main/java/ru/soune/nocopy/handler/FileEntityHandler.java

@@ -6,7 +6,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
 import ru.soune.nocopy.dto.*;
 import ru.soune.nocopy.dto.file.*;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 import ru.soune.nocopy.entity.file.FileEntity;
 import ru.soune.nocopy.entity.file.FileStatus;
 import ru.soune.nocopy.exception.FileEntityNotFoundException;
@@ -62,7 +62,8 @@ public class FileEntityHandler implements RequestHandler {
                             .action(action)
                             .availableActions(Arrays.asList(
                                     "file_info", "file_by_session", "user_files",
-                                    "search_files", "storage_usage", "delete_file"))
+                                    "search_files", "storage_usage", "delete_file",
+                                    "user_files_info"))
                             .build();
 
                     return new BaseResponse(request.getMsgId(),

src/main/java/ru/soune/nocopy/handler/FileUploadHandler.java

@@ -10,7 +10,7 @@ import org.springframework.validation.BindingResult;
 import org.springframework.validation.FieldError;
 import ru.soune.nocopy.dto.*;
 import ru.soune.nocopy.dto.file.*;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 import ru.soune.nocopy.entity.file.FileType;
 import ru.soune.nocopy.entity.file.FileUploadSession;
 import ru.soune.nocopy.exception.*;
@@ -209,6 +209,7 @@ public class FileUploadHandler implements RequestHandler {
                     .orElseThrow(() -> new UploadSessionNotFoundException(fileRequest.getUploadId()));
 
             Map<String, Boolean> chunkStatus = new HashMap<>();
+
             for (int i = 0; i < session.getTotalChunks(); i++) {
                 chunkStatus.put("chunk_" + i, session.getChunkPaths().containsKey(i));
             }
@@ -223,7 +224,6 @@ public class FileUploadHandler implements RequestHandler {
 
             return new BaseResponse(request.getMsgId(), MessageCode.SUCCESS.getCode(),
                     MessageCode.SUCCESS.getDescription(), response);
-
         } catch (UploadSessionNotFoundException e) {
             return new BaseResponse(request.getMsgId(), MessageCode.FILE_NOT_FOUND.getCode(),
                     "Upload session not found", null);

src/main/java/ru/soune/nocopy/handler/ImageFoundRequestHandler.java

@@ -0,0 +1,36 @@
+package ru.soune.nocopy.handler;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import ru.soune.nocopy.dto.BaseRequest;
+import ru.soune.nocopy.dto.BaseResponse;
+import ru.soune.nocopy.dto.MessageCode;
+import ru.soune.nocopy.dto.file.ImageSearchRequest;
+import ru.soune.nocopy.dto.file.YandexSearchResponse;
+import ru.soune.nocopy.service.YandexSearchService;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class ImageFoundRequestHandler implements RequestHandler {
+
+    private final ObjectMapper objectMapper;
+
+    private final YandexSearchService yandexSearchService;
+
+    @Override
+    public BaseResponse handle(BaseRequest request) throws Exception {
+        ImageSearchRequest imageSearchRequest = objectMapper.convertValue(request.getMessageBody(),
+                ImageSearchRequest.class);
+
+        String fileId = imageSearchRequest.getFileId();
+
+        YandexSearchResponse response = yandexSearchService.searchByFileEntity(fileId);
+
+        return new BaseResponse(request.getMsgId(), MessageCode.SUCCESS.getCode(),
+                MessageCode.SUCCESS.getDescription(), response);
+    }
+}

src/main/java/ru/soune/nocopy/handler/LoginRequestHandler.java

@@ -4,7 +4,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
 import ru.soune.nocopy.dto.*;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 import ru.soune.nocopy.exception.NotValidFieldException;
 import ru.soune.nocopy.repository.UserRepository;
 import ru.soune.nocopy.service.AuthService;

src/main/java/ru/soune/nocopy/handler/LogoutRequestHandler.java

@@ -4,7 +4,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
 import ru.soune.nocopy.dto.*;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 import ru.soune.nocopy.entity.User;
 import ru.soune.nocopy.exception.NotValidFieldException;
 import ru.soune.nocopy.repository.AuthTokenRepository;

src/main/java/ru/soune/nocopy/handler/RegRequestHandler.java

@@ -7,7 +7,7 @@ import org.springframework.stereotype.Component;
 import org.springframework.validation.BeanPropertyBindingResult;
 import org.springframework.validation.BindingResult;
 import ru.soune.nocopy.dto.*;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 import ru.soune.nocopy.exception.NotValidFieldException;
 import ru.soune.nocopy.exception.ValidationException;
 import ru.soune.nocopy.handler.validator.RegRequestValidator;

src/main/java/ru/soune/nocopy/repository/AuthTokenRepository.java

@@ -2,7 +2,7 @@ package ru.soune.nocopy.repository;
 
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 
 import java.time.LocalDate;
 import java.util.Optional;

src/main/java/ru/soune/nocopy/repository/ExternalAuthProviderRepository.java

@@ -1,25 +0,0 @@
-package ru.soune.nocopy.repository;
-
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-import ru.soune.nocopy.entity.User;
-import ru.soune.nocopy.entity.auth.ExternalAuthProvider;
-
-import java.util.List;
-import java.util.Optional;
-
-@Repository
-public interface ExternalAuthProviderRepository extends JpaRepository<ExternalAuthProvider, Long> {
-
-    Optional<ExternalAuthProvider> findByProviderTypeAndProviderUserId(
-            ExternalAuthProvider.ProviderType providerType,
-            String providerUserId
-    );
-
-    List<ExternalAuthProvider> findByUser(User user);
-
-    boolean existsByProviderTypeAndProviderUserId(
-            ExternalAuthProvider.ProviderType providerType,
-            String providerUserId
-    );
-}

src/main/java/ru/soune/nocopy/repository/FileEntityRepository.java

@@ -14,6 +14,7 @@ import java.util.Optional;
 public interface FileEntityRepository extends JpaRepository<FileEntity, String> {
 
     List<FileEntity> findByUserId(Long userId);
+    Optional<FileEntity> findByUserIdAndChecksum(Long userId,  String imageHash);
 
     List<FileEntity> findByUserIdAndStatus(Long userId, FileStatus status);
 

src/main/java/ru/soune/nocopy/repository/ImageHashRepository.java

@@ -0,0 +1,9 @@
+package ru.soune.nocopy.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+import ru.soune.nocopy.entity.file.ImageHashEntity;
+
+@Repository
+public interface ImageHashRepository extends JpaRepository<ImageHashEntity, String> {
+}

src/main/java/ru/soune/nocopy/repository/ImageSimilarityRepository.java

@@ -0,0 +1,35 @@
+package ru.soune.nocopy.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+import ru.soune.nocopy.entity.file.FileEntity;
+
+import java.util.List;
+
+@Repository
+public interface ImageSimilarityRepository
+        extends JpaRepository<FileEntity, String> {
+
+    @Query(value = """
+        SELECT
+            f.id AS similarFileId,
+            f.original_file_name AS originalFileName,
+            f.file_size AS fileSize,
+            h.hash64_hi AS hash64Hi,
+            h.hash64_lo AS hash64Lo
+        FROM image_hashes ref
+        JOIN image_hashes h
+            ON ref.file_id <> h.file_id
+        JOIN file_entities f
+            ON f.id = h.file_id
+        WHERE ref.file_id = :fileId
+        """,
+            nativeQuery = true)
+    List<SimilarImageProjection> findCandidates(
+            @Param("fileId") String fileId
+    );
+}
+
+

src/main/java/ru/soune/nocopy/repository/SimilarImageProjection.java

@@ -0,0 +1,14 @@
+package ru.soune.nocopy.repository;
+
+public interface SimilarImageProjection {
+
+    String getSimilarFileId();
+
+    String getOriginalFileName();
+
+    Long getFileSize();
+
+    Integer getHash64Hi();
+
+    Integer getHash64Lo();
+}

src/main/java/ru/soune/nocopy/repository/UserRepository.java

@@ -2,10 +2,7 @@ package ru.soune.nocopy.repository;
 
 import jakarta.validation.constraints.Size;
 import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.Query;
-import org.springframework.data.repository.query.Param;
 import ru.soune.nocopy.entity.User;
-import ru.soune.nocopy.entity.auth.ExternalAuthProvider;
 
 import java.util.Optional;
 
@@ -13,10 +10,4 @@ public interface UserRepository extends JpaRepository<User, Long> {
     Optional<User> findByEmail(String email);
     boolean existsByEmail(String email);
     boolean existsByPhone(@Size(min = 11, max = 14) String phone);
-    @Query("SELECT u FROM User u JOIN u.externalAuthProviders p " +
-            "WHERE p.providerType = :providerType AND p.providerUserId = :providerUserId")
-    Optional<User> findByExternalProvider(
-            @Param("providerType") ExternalAuthProvider.ProviderType providerType,
-            @Param("providerUserId") String providerUserId
-    );
 }

src/main/java/ru/soune/nocopy/service/AuthService.java

@@ -6,7 +6,7 @@ import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import ru.soune.nocopy.dto.*;
-import ru.soune.nocopy.entity.auth.AuthToken;
+import ru.soune.nocopy.entity.AuthToken;
 import ru.soune.nocopy.entity.User;
 import ru.soune.nocopy.exception.NotValidFieldException;
 import ru.soune.nocopy.repository.AuthTokenRepository;
@@ -87,20 +87,6 @@ public class AuthService {
                 .ifPresent(authTokenRepository::delete);
     }
 
-    @Transactional
-    public AuthToken createTokenForUser(User user) {
-        AuthToken authToken = new AuthToken();
-        authToken.setToken(generateAuthToken());
-        authToken.setUser(user);
-        authToken.setExpiresAt(LocalDateTime.now().plusHours(1));
-        authToken.setIsActive(true);
-
-        user.setLastLoginAt(LocalDateTime.now());
-        userRepository.save(user);
-
-        return authTokenRepository.save(authToken);
-    }
-
     private String generateAuthToken() {
         byte[] bytes = new byte[32];
         secureRandom.nextBytes(bytes);

src/main/java/ru/soune/nocopy/service/FileSimilarityService.java

@@ -0,0 +1,62 @@
+package ru.soune.nocopy.service;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import ru.soune.nocopy.dto.file.SimilarFileResponse;
+import ru.soune.nocopy.repository.ImageHashRepository;
+import ru.soune.nocopy.repository.ImageSimilarityRepository;
+import ru.soune.nocopy.repository.SimilarImageProjection;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class FileSimilarityService {
+
+    private final ImageSimilarityRepository repository;
+    private final ImageHashRepository hashRepository;
+
+    public List<SimilarFileResponse> findSimilarFiles(String fileId) {
+        var imageHashEntity = hashRepository.findById(fileId)
+                .orElseThrow(() -> new RuntimeException("Hash not found"));
+
+        Integer hash64Hi = imageHashEntity.getHash64Hi();
+        Integer hash64Lo = imageHashEntity.getHash64Lo();
+
+        List<SimilarImageProjection> candidates =
+                repository.findCandidates(fileId);
+
+        return candidates.stream()
+                .map(c -> {
+                    Integer cHi = c.getHash64Hi();
+                    Integer cLo = c.getHash64Lo();
+
+                    int hamming = hamming64(hash64Hi, hash64Lo, cHi, cLo);
+
+                    String level;
+                    if (hamming <= 5) {
+                        level = "DUPLICATE";
+                    } else if (hamming <= 12) {
+                        level = "SIMILAR";
+                    } else {
+                        level = "DIFFERENT";
+                    }
+
+                    return SimilarFileResponse.builder()
+                            .fileId(c.getSimilarFileId())
+                            .originalFileName(c.getOriginalFileName())
+                            .fileSize(c.getFileSize())
+                            .hammingDistance(hamming)
+                            .similarityLevel(level)
+                            .build();
+                })
+                .sorted((a, b) ->
+                        Integer.compare(a.getHammingDistance(), b.getHammingDistance()))
+                .toList();
+    }
+
+    private int hamming64(int aHi, int aLo, int bHi, int bLo) {
+        return Integer.bitCount(aHi ^ bHi)
+                + Integer.bitCount(aLo ^ bLo);
+    }
+}

src/main/java/ru/soune/nocopy/service/ImageHashService.java

@@ -0,0 +1,154 @@
+package ru.soune.nocopy.service;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import ru.soune.nocopy.entity.file.FileEntity;
+import ru.soune.nocopy.entity.file.ImageHashEntity;
+import ru.soune.nocopy.repository.ImageHashRepository;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.time.LocalDateTime;
+import java.util.Arrays;
+
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class ImageHashService {
+
+    private final ImageHashRepository repository;
+
+    public void create(FileEntity file, Path imagePath) {
+        try {
+            long hash64 = computePhash64(imagePath);
+
+            int hi = high32(hash64);
+            int lo = low32(hash64);
+
+            ImageHashEntity entity = ImageHashEntity.builder()
+                    .file(file)
+                    .hash64Hi(hi)
+                    .hash64Lo(lo)
+                    .hashAlgorithm("PHASH64")
+                    .createdAt(LocalDateTime.now())
+                    .build();
+
+            repository.save(entity);
+        } catch (IOException e) {
+            throw new RuntimeException("Failed to compute image hash", e);
+        }
+    }
+
+    private long computePhash64(Path path) throws IOException {
+        try (InputStream is = Files.newInputStream(path)) {
+            BufferedImage image = ImageIO.read(is);
+            if (image == null) throw new IOException("Cannot read image file: " + path);
+
+            BufferedImage gray = toGrayScale(image);
+            BufferedImage resized = resizeImage(gray, 32, 32);
+
+            double[][] dct = applyDCT(resized);
+            double[][] topLeft = extractTopLeft8x8(dct);
+            double median = calculateMedian(topLeft, true);
+
+            return create64BitHashLong(topLeft, median);
+        }
+    }
+
+    private BufferedImage toGrayScale(BufferedImage image) {
+        BufferedImage gray = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
+        Graphics2D g = gray.createGraphics();
+        g.drawImage(image, 0, 0, null);
+        g.dispose();
+        return gray;
+    }
+
+    private BufferedImage resizeImage(BufferedImage image, int width, int height) {
+        BufferedImage resized = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
+        Graphics2D g = resized.createGraphics();
+        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
+        g.drawImage(image, 0, 0, width, height, null);
+        g.dispose();
+        return resized;
+    }
+
+    private double[][] applyDCT(BufferedImage image) {
+        int w = image.getWidth();
+        int h = image.getHeight();
+        double[][] pixels = new double[h][w];
+
+        for (int y = 0; y < h; y++) {
+            for (int x = 0; x < w; x++) {
+                int gray = image.getRGB(x, y) & 0xFF;
+                pixels[y][x] = gray;
+            }
+        }
+
+        double[][] dct = new double[h][w];
+        for (int u = 0; u < h; u++) {
+            double au = u == 0 ? 1.0 / Math.sqrt(h) : Math.sqrt(2.0 / h);
+            for (int v = 0; v < w; v++) {
+                double av = v == 0 ? 1.0 / Math.sqrt(w) : Math.sqrt(2.0 / w);
+                double sum = 0.0;
+                for (int x = 0; x < h; x++) {
+                    for (int y = 0; y < w; y++) {
+                        sum += pixels[x][y] *
+                                Math.cos((2 * x + 1) * u * Math.PI / (2.0 * h)) *
+                                Math.cos((2 * y + 1) * v * Math.PI / (2.0 * w));
+                    }
+                }
+                dct[u][v] = au * av * sum;
+            }
+        }
+        return dct;
+    }
+
+    private double[][] extractTopLeft8x8(double[][] dct) {
+        double[][] block = new double[8][8];
+        for (int i = 0; i < 8; i++) System.arraycopy(dct[i], 0, block[i], 0, 8);
+        return block;
+    }
+
+    private double calculateMedian(double[][] block, boolean excludeDC) {
+        double[] vals = new double[63];
+        int idx = 0;
+        for (int i = 0; i < 8; i++) {
+            for (int j = 0; j < 8; j++) {
+                if (i == 0 && j == 0 && excludeDC) continue;
+                vals[idx++] = block[i][j];
+            }
+        }
+        Arrays.sort(vals);
+        return (vals.length % 2 == 0) ?
+                (vals[vals.length / 2 - 1] + vals[vals.length / 2]) / 2.0 :
+                vals[vals.length / 2];
+    }
+
+    private long create64BitHashLong(double[][] block, double median) {
+        long hash = 0L;
+
+        for (int i = 0; i < 8; i++) {
+            for (int j = 0; j < 8; j++) {
+                if (i == 0 && j == 0) continue;
+                hash <<= 1;
+                if (block[i][j] > median) hash |= 1;
+            }
+        }
+
+        return hash;
+    }
+
+    private int high32(long hash64) {
+        return (int) (hash64 >>> 32);
+    }
+
+    private int low32(long hash64) {
+        return (int) hash64;
+    }
+}

src/main/java/ru/soune/nocopy/service/VkOAuthService.java

@@ -1,69 +0,0 @@
-package ru.soune.nocopy.service;
-
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.http.*;
-import org.springframework.stereotype.Service;
-import org.springframework.util.LinkedMultiValueMap;
-import org.springframework.util.MultiValueMap;
-import org.springframework.web.client.RestTemplate;
-
-import java.util.HashMap;
-import java.util.Map;
-
-@Service
-public class VkOAuthService {
-    @Value("${auth.vk.oauth2}")
-    String oauthVkPath;
-
-    @Value("${auth.vk.user_info}")
-    String vkUserInfo;
-
-    @Value("${auth.vk.client_id}")
-    String clientId;
-
-    @Value("${auth.vk.redirect_uri}")
-    String redirectUri;
-
-    public Map<String, Object> authTokenMap(String code, String state, String codeVerifier, String deviceId) {
-        MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
-        params.add("grant_type", "authorization_code");
-        params.add("code_verifier", codeVerifier);
-        params.add("redirect_uri", redirectUri);
-        params.add("code", code);
-        params.add("client_id", clientId);
-        params.add("device_id", deviceId);
-        params.add("state", state);
-        params.add("scope", "email,phone");
-
-        HttpHeaders headers = new HttpHeaders();
-        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
-
-        return sendRequest(params, headers,oauthVkPath);
-    }
-
-    public Map<String, Object> userVkInfo(String accessToken) {
-        MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
-        params.add("access_token", accessToken);
-        params.add("client_id", clientId);
-
-        HttpHeaders headers = new HttpHeaders();
-        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
-
-
-        return sendRequest(params, headers, vkUserInfo);
-    }
-
-    private Map<String, Object> sendRequest(MultiValueMap<String, String> params, HttpHeaders headers, String url) {
-        Map<String, Object> info = new HashMap<>();
-        RestTemplate restTemplate = new RestTemplate();
-        ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.POST,
-                new HttpEntity<>(params, headers), String.class);
-
-        info.put("status", response.getStatusCodeValue());
-        info.put("body", response.getBody());
-        info.put("headers", response.getHeaders());
-        info.put("success", response.getStatusCode().is2xxSuccessful());
-
-        return info;
-    }
-}

src/main/java/ru/soune/nocopy/service/YandexSearchService.java

@@ -0,0 +1,162 @@
+package ru.soune.nocopy.service;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import jakarta.annotation.PostConstruct;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import ru.soune.nocopy.dto.BaseResponse;
+import ru.soune.nocopy.dto.MessageCode;
+import ru.soune.nocopy.dto.file.YandexSearchResponse;
+import ru.soune.nocopy.entity.file.FileEntity;
+import ru.soune.nocopy.exception.FileEntityNotFoundException;
+import ru.soune.nocopy.exception.NotValidFieldException;
+import ru.soune.nocopy.repository.FileEntityRepository;
+
+import java.io.*;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Base64;
+import java.util.Map;
+
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class YandexSearchService {
+    private final FileEntityRepository fileEntityRepository;
+
+    private final ObjectMapper objectMapper;
+
+    @Value("${yandex.api-key}")
+    private String apiKey;
+
+    @Value("${yandex.folder-id}")
+    private String folderId;
+
+    @Value("${yandex.search-url}")
+    private String searchUrl;
+
+    @PostConstruct
+    public void init() {
+        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+        objectMapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
+    }
+
+    public YandexSearchResponse searchByFileEntity(String fileId) throws IOException {
+        FileEntity fileEntity = fileEntityRepository.findById(fileId)
+                .orElseThrow(() -> {
+                    throw new NotValidFieldException("File not found", new BaseResponse(20007,
+                            MessageCode.FILE_NOT_FOUND.getCode(), MessageCode.FILE_NOT_FOUND.getDescription(),
+                            Map.of("fileId",fileId)));
+                });
+        byte[] fileBytes;
+
+        if (!isImageFile(fileEntity)) {
+            log.error("File not image: {}", fileEntity.getMimeType());
+            throw new NotValidFieldException("File not image", new BaseResponse(20007,
+                    MessageCode.INVALID_FIELD.getCode(), MessageCode.INVALID_FIELD.getDescription(),
+                    Map.of("file_type", fileEntity.getMimeType())));
+        }
+
+        try {
+            fileBytes = readFileFromDisk(fileEntity);
+        } catch (IOException e) {
+            throw new NotValidFieldException("File not found or cannot read file", new BaseResponse(20007,
+                    MessageCode.FILE_NOT_FOUND.getCode(), MessageCode.FILE_NOT_FOUND.getDescription(),
+                    Map.of("fileId", fileId,
+                            "filePath", fileEntity.getFilePath())));
+        }
+
+        return callYandexApi(fileBytes);
+    }
+
+    private boolean isImageFile(FileEntity fileEntity) {
+        String mimeType = fileEntity.getMimeType();
+        return mimeType != null && mimeType.startsWith("image");
+    }
+
+    private byte[] readFileFromDisk(FileEntity fileEntity) throws IOException {
+        Path filePath = Path.of(fileEntity.getFilePath());
+
+        if (!Files.exists(filePath)) {
+            throw new IOException("File not found: " + fileEntity.getFilePath());
+        }
+
+        if (!Files.isReadable(filePath)) {
+            throw new IOException("Cannot read file: " + fileEntity.getFilePath());
+        }
+
+        return Files.readAllBytes(filePath);
+    }
+
+    private YandexSearchResponse callYandexApi(byte[] imageBytes) throws IOException {
+        String imageBase64 = Base64.getEncoder().encodeToString(imageBytes);
+        String jsonRequest = String.format("{\"folderId\":\"%s\",\"data\":\"%s\",\"page\":0,\"showSimilarImages\":true}",
+                folderId, imageBase64);
+
+        URL url = new URL(searchUrl);
+        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+
+        try {
+            connection.setRequestMethod("POST");
+            connection.setRequestProperty("Authorization", "Api-Key " + apiKey);
+            connection.setRequestProperty("Content-Type", "application/json");
+            connection.setRequestProperty("Accept", "application/json");
+            connection.setConnectTimeout(30000);
+            connection.setReadTimeout(30000);
+            connection.setDoOutput(true);
+
+            try (OutputStream os = connection.getOutputStream()) {
+                byte[] input = jsonRequest.getBytes("utf-8");
+                os.write(input, 0, input.length);
+                os.flush();
+            }
+
+            int responseCode = connection.getResponseCode();
+
+            String responseBody;
+            if (responseCode == HttpURLConnection.HTTP_OK) {
+                try (BufferedReader br = new BufferedReader(
+                        new InputStreamReader(connection.getInputStream(), "utf-8"))) {
+                    responseBody = readAll(br);
+                }
+            } else {
+                try (BufferedReader br = new BufferedReader(
+                        new InputStreamReader(connection.getErrorStream(), "utf-8"))) {
+                    responseBody = readAll(br);
+                }
+                throw new IOException("Error Yandex API: " + responseCode + " - " + responseBody);
+            }
+
+            return parseJsonResponse(responseBody);
+
+        } finally {
+            connection.disconnect();
+        }
+    }
+
+    private String readAll(BufferedReader reader) throws IOException {
+        StringBuilder sb = new StringBuilder();
+        String line;
+        while ((line = reader.readLine()) != null) {
+            sb.append(line);
+        }
+        return sb.toString();
+    }
+
+    private YandexSearchResponse parseJsonResponse(String json) {
+        YandexSearchResponse response = null;
+        try {
+            response = objectMapper.readValue(json, YandexSearchResponse.class);
+        } catch (JsonProcessingException e) {
+                throw new RuntimeException(e);
+        }
+
+        return response;
+    }
+}

src/main/java/ru/soune/nocopy/service/auth/ExternalAuthUserService.java

@@ -1,102 +0,0 @@
-package ru.soune.nocopy.service.auth;
-
-import lombok.RequiredArgsConstructor;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import ru.soune.nocopy.entity.User;
-import ru.soune.nocopy.entity.auth.ExternalAuthProvider;
-import ru.soune.nocopy.repository.ExternalAuthProviderRepository;
-import ru.soune.nocopy.repository.UserRepository;
-
-import java.time.LocalDateTime;
-import java.util.Optional;
-
-@Service
-@RequiredArgsConstructor
-public class ExternalAuthUserService {
-    private final UserRepository userRepository;
-
-    private final ExternalAuthProviderRepository externalAuthProviderRepository;
-
-    @Transactional
-    public User findOrCreateUserFromVK(String vkUserId, String fullName, String email,
-                                       String vkAccessToken, String vkRefreshToken, Integer expiresIn) {
-
-        Optional<User> existingByVkId = userRepository.findByExternalProvider(ExternalAuthProvider.ProviderType.VK,
-                vkUserId);
-
-        if (existingByVkId.isPresent()) {
-            User user = existingByVkId.get();
-            updateVKProvider(user, vkAccessToken, vkRefreshToken, expiresIn, email);
-
-            return user;
-        }
-
-        if (email != null && !email.isBlank()) {
-            Optional<User> existingByEmail = userRepository.findByEmail(email);
-
-            if (existingByEmail.isPresent()) {
-                User user = existingByEmail.get();
-                linkVKProvider(user, vkUserId, vkAccessToken, vkRefreshToken, expiresIn, email);
-
-                return user;
-            }
-        }
-
-        return createNewUserWithVK(vkUserId, fullName, email, vkAccessToken, vkRefreshToken, expiresIn);
-    }
-
-    private User createNewUserWithVK(String vkUserId, String fullName, String email,
-                                     String vkAccessToken, String vkRefreshToken, Integer expiresIn) {
-        User newUser = User.builder()
-                .fullName(fullName)
-                .email(email)
-                .password("generateRandomPassword()")
-                .isActive(true)
-                .build();
-
-        User savedUser = userRepository.save(newUser);
-
-        linkVKProvider(savedUser, vkUserId, vkAccessToken, vkRefreshToken, expiresIn, email);
-
-        return savedUser;
-    }
-
-    private void linkVKProvider(User user, String vkUserId, String vkAccessToken, String vkRefreshToken,
-                                Integer expiresIn, String email) {
-        ExternalAuthProvider provider = ExternalAuthProvider.builder()
-                .user(user)
-                .providerType(ExternalAuthProvider.ProviderType.VK)
-                .providerUserId(vkUserId)
-                .accessToken(vkAccessToken)
-                .refreshToken(vkRefreshToken)
-                .tokenExpiresAt(LocalDateTime.now().plusSeconds(expiresIn))
-                .email(email)
-                .isActive(true)
-                .build();
-
-        externalAuthProviderRepository.save(provider);
-
-        user.getExternalAuthProviders().add(provider);
-    }
-
-    private void updateVKProvider(User user, String vkAccessToken, String vkRefreshToken,
-                                  Integer expiresIn, String email) {
-        Optional<ExternalAuthProvider> existingProvider = user.getProvider(ExternalAuthProvider.ProviderType.VK);
-
-        if (existingProvider.isPresent()) {
-            ExternalAuthProvider provider = existingProvider.get();
-            provider.setAccessToken(vkAccessToken);
-            provider.setTokenExpiresAt(LocalDateTime.now().plusSeconds(expiresIn));
-            provider.setEmail(email);
-            provider.setRefreshToken(vkRefreshToken);
-            provider.setLastUsedAt(LocalDateTime.now());
-
-            externalAuthProviderRepository.save(provider);
-        }
-    }
-
-    private String generateRandomPassword() {
-        return java.util.UUID.randomUUID().toString();
-    }
-}

src/main/java/ru/soune/nocopy/service/file/FileEntityService.java

@@ -9,15 +9,17 @@ import ru.soune.nocopy.dto.file.FileResponse;
 import ru.soune.nocopy.entity.file.FileEntity;
 import ru.soune.nocopy.entity.file.FileStatus;
 import ru.soune.nocopy.entity.file.FileUploadSession;
+import ru.soune.nocopy.exception.DuplicateImageException;
 import ru.soune.nocopy.exception.FileEntityNotFoundException;
 import ru.soune.nocopy.repository.FileEntityRepository;
+import ru.soune.nocopy.service.FileSimilarityService;
+import ru.soune.nocopy.service.ImageHashService;
 
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.time.LocalDateTime;
-import java.time.ZoneOffset;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -28,6 +30,10 @@ public class FileEntityService {
 
     private final FileEntityRepository fileEntityRepository;
 
+    private final ImageHashService imageHashService;
+
+    private final FileSimilarityService fileSimilarityService;
+
     @Transactional
     public FileEntity createFromUploadSession(FileUploadSession session, String checksum) {
         log.info("Creating FileEntity for upload session: {}", session.getUploadId());
@@ -57,11 +63,28 @@ public class FileEntityService {
                     .build();
 
             FileEntity saved = fileEntityRepository.save(fileEntity);
-            log.info("FileEntity created successfully: {} (size: {} bytes)",
+
-                    saved.getId(), fileSize);
+            if (saved.getMimeType().startsWith("image")) {
+                imageHashService.create(saved, Path.of(saved.getFilePath()));
+
+                var similarFiles = fileSimilarityService.findSimilarFiles(saved.getId());
+
+                boolean hasDuplicate = similarFiles.stream()
+                        .anyMatch(f -> f.getHammingDistance() <= 5);
+
+                if (hasDuplicate) {
+                    log.warn("Duplicate image detected for upload session {}. Rolling back.",
+                            session.getUploadId());
+                    throw new DuplicateImageException("Duplicate image detected for upload session " + session.getUploadId());
+                }
+
+                similarFiles.stream()
+                        .filter(f -> f.getHammingDistance() > 5)
+                        .forEach(f -> log.info("Similar image found: {} (distance {})",
+                                f.getFileId(), f.getHammingDistance()));
+            }
 
             return saved;
-
         } catch (IOException e) {
             log.error("Failed to create FileEntity for session {}: {}",
                     session.getUploadId(), e.getMessage(), e);
@@ -69,15 +92,6 @@ public class FileEntityService {
         }
     }
 
-
-    private String extractFileExtension(String fileName) {
-        int dotIndex = fileName.lastIndexOf('.');
-        if (dotIndex > 0 && dotIndex < fileName.length() - 1) {
-            return fileName.substring(dotIndex + 1).toLowerCase();
-        }
-        return "";
-    }
-
     @Transactional(readOnly = true)
     public FileEntityResponse getById(String fileId, int version) {
         FileEntity fileEntity = fileEntityRepository.findById(fileId)
@@ -95,39 +109,6 @@ public class FileEntityService {
         return convertToResponse(fileEntity, version);
     }
 
-    @Transactional(readOnly = true)
-    public FileEntityResponse getByFilePath(String filePath, int version) {
-        FileEntity fileEntity = fileEntityRepository.findByFilePath(filePath)
-                .orElseThrow(() -> new FileEntityNotFoundException("Path: " + filePath));
-
-        return convertToResponse(fileEntity, version);
-    }
-
-
-    @Transactional(readOnly = true)
-    public FileResponse getAllUserFiles(Long userId, int version) {
-        List<FileEntity> fileEntities = fileEntityRepository.findByUserIdAndStatus(
-                userId, FileStatus.ACTIVE);
-
-        List<FileEntityResponse> files = fileEntities.stream()
-                .map(file -> convertToResponse(file, version))
-                .collect(Collectors.toList());
-
-        long totalSize = fileEntities.stream()
-                .mapToLong(FileEntity::getFileSize)
-                .sum();
-
-        return FileResponse.builder()
-                .files(files)
-                .totalCount(files.size())
-                .totalSize(totalSize)
-                .formattedTotalSize(formatFileSize(totalSize))
-                .page(1)
-                .pageSize(files.size())
-                .build();
-    }
-
-
     @Transactional(readOnly = true)
     public FileResponse getUserFiles(Long userId, int page, int pageSize, int version) {
         List<FileEntity> allFiles = fileEntityRepository.findByUserIdAndStatus(

src/main/java/ru/soune/nocopy/service/file/FileUploadServiceImpl.java

@@ -102,7 +102,7 @@ public class FileUploadServiceImpl implements FileUploadService {
         int totalChunks = (int) Math.ceil((double) fileSize / chunkSize);
         log.debug("File will be split into {} chunks (chunk size: {} bytes)",
                 totalChunks, chunkSize);
-        Long chunkSize = totalChunks == 1 ? fileSize : 1048576L;
+        Long chunkSize = totalChunks == 1 ? fileSize : 1000000L;
 
         FileUploadSession session = FileUploadSession.builder()
                 .userId(userId)
@@ -402,7 +402,7 @@ public class FileUploadServiceImpl implements FileUploadService {
                 session.getUploadId(), session.getFileName());
 
         Path finalFilePath = null;
-        String checksum = null;
+        String checksum;
 
         try {
             finalFilePath = prepareFinalFile(session);
@@ -591,44 +591,10 @@ public class FileUploadServiceImpl implements FileUploadService {
     private void handleAssemblyFailure(FileUploadSession session, Exception e) {
         session.setStatus(UploadStatus.FAILED);
         session.setLastError(e.getMessage());
+
         sessionRepository.save(session);
-
-        log.error("File assembly failed for session {}: {}",
-                session.getUploadId(), e.getMessage());
     }
 
-
-
-//    @Override
-//    @Transactional
-//    public void cleanupExpiredSessions() {
-//        log.info("Starting cleanup of expired upload sessions");
-//
-//        LocalDateTime expiryThreshold = LocalDateTime.now().minusHours(sessionExpiryHours);
-//
-//        try {
-//            var expiredSessions = sessionRepository.findByStatusInAndCreatedAtBefore(
-//                    Set.of(UploadStatus.INITIATED, UploadStatus.UPLOADING, UploadStatus.FAILED),
-//                    expiryThreshold
-//            );
-//
-//            int cleanedCount = 0;
-//            for (FileUploadSession session : expiredSessions) {
-//                session.setStatus(UploadStatus.FAILED);
-//                session.setLastError("Session expired during cleanup");
-//                sessionRepository.save(session);
-//
-//                CompletableFuture.runAsync(() -> cleanupSessionFiles(session));
-//                cleanedCount++;
-//            }
-//
-//            log.info("Cleaned up {} expired upload sessions", cleanedCount);
-//
-//        } catch (Exception e) {
-//            log.error("Error during session cleanup", e);
-//        }
-//    }
-
     private Path getChunkDirectory(Long userId, String uploadId) {
         return storageRoot.resolve("temp")
                 .resolve("user")

src/main/resources/application.yaml

@@ -1,4 +1,8 @@
 spring:
+  flyway:
+    enabled: true
+    baseline-on-migrate: true
+
   datasource:
     url: jdbc:postgresql://${POSTGRES_HOST}:${POSTGRES_PORT}/${POSTGRES_DB}
     username: ${POSTGRES_USER}
@@ -25,20 +29,14 @@ file:
   storage:
     base-path: ${FILE_STORAGE_PATH:/data/uploads}
     #    chunk-size: ${FILE_CHUNK_SIZE:5242880}  # 5MB
-    chunk-size: ${FILE_CHUNK_SIZE:1048576}  # 15MB
+#    chunk-size: ${FILE_CHUNK_SIZE:1048576}  # 1MB
+    chunk-size: ${FILE_CHUNK_SIZE:1000000}  # 1MB
     max-file-size: ${MAX_FILE_SIZE:10737418240}  # 10GB
     max-retry-attempts: ${MAX_RETRY_ATTEMPTS:3}
     chunk-timeout-ms: ${CHUNK_TIMEOUT_MS:300000}  # 5 минут
     temp-ttl-hours: ${TEMP_TTL_HOURS:72}  # 3 дня
     session-expiry-hours: ${SESSION_EXPIRY_HOURS:24}
 
-auth:
-  vk:
-    oauth2: "https://id.vk.ru/oauth2/auth"
-    user_info: "https://id.vk.ru/oauth2/user_info"
-    client_id: "54389559"
-    redirect_uri: "http://localhost"
-
 security:
   cors:
     allowed-origins: "*"
@@ -58,3 +56,8 @@ logging:
     name: logs/application.log
   pattern:
     console: "%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n"
+
+yandex:
+  api-key: ${YANDEX_API_KEY:AQVNyaVaUmgUb1GMCtf5zSEqFxy0woXrcMOOB43q}
+  folder-id: ${YANDEX_FOLDER_ID:b1gokpdbm6qfpsou8pcd}
+  search-url: ${YANDEX_SEARCH_URL:https://searchapi.api.cloud.yandex.net/v2/image/search_by_image}

src/main/resources/db/migration/V1__add_image_hash_prefix_index.sql

@@ -0,0 +1,2 @@
+CREATE INDEX idx_image_hash_prefix
+    ON image_hashes ((hash_value >> 48));

src/test/java/ru/soune/nocopy/service/AuthServiceTest.java

@@ -1,101 +0,0 @@
-package ru.soune.nocopy.service;
-
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.mockito.ArgumentCaptor;
-import org.mockito.InjectMocks;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-import org.springframework.context.MessageSource;
-import org.springframework.security.crypto.password.PasswordEncoder;
-import ru.soune.nocopy.dto.LoginRequest;
-import ru.soune.nocopy.entity.auth.AuthToken;
-import ru.soune.nocopy.entity.User;
-import ru.soune.nocopy.exception.NotValidationPasswordException;
-import ru.soune.nocopy.exception.UserNotFoundException;
-import ru.soune.nocopy.repository.AuthTokenRepository;
-import ru.soune.nocopy.repository.UserRepository;
-
-import java.util.Optional;
-
-import static org.junit.jupiter.api.Assertions.*;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-public class AuthServiceTest {
-
-    @Mock
-    private UserRepository userRepository;
-
-    @Mock
-    private AuthTokenRepository authTokenRepository;
-
-    @Mock
-    private PasswordEncoder passwordEncoder;
-
-    @Mock
-    private MessageSource messageSource;
-
-    @InjectMocks
-    private AuthService authService;
-
-    @BeforeEach
-    void setUp() {
-        MockitoAnnotations.openMocks(this);
-    }
-
-    @Test
-    void login_success() {
-        LoginRequest request = new LoginRequest("test@mail.com", "password");
-
-        User user = new User();
-        user.setId(1L);
-        user.setEmail("test@mail.com");
-        user.setPassword("encoded_pass");
-
-        when(userRepository.findByEmail("test@mail.com"))
-                .thenReturn(Optional.of(user));
-        when(passwordEncoder.matches("password", "encoded_pass"))
-                .thenReturn(true);
-        when(authTokenRepository.save(any(AuthToken.class)))
-                .thenAnswer(invocation -> invocation.getArgument(0));
-
-        AuthToken token = authService.login(request);
-
-        assertNotNull(token);
-        assertNotNull(token.getToken());
-//        assertEquals(user.getTokens().get(0), token.getUser());
-
-        ArgumentCaptor<AuthToken> captor = ArgumentCaptor.forClass(AuthToken.class);
-        verify(authTokenRepository).save(captor.capture());
-
-//        assertEquals(user, captor.getValue().getUser());
-        assertNotNull(captor.getValue().getToken());
-    }
-
-
-    @Test
-    void login_userNotFound() {
-        LoginRequest request = new LoginRequest("missing@mail.com", "pwd");
-
-        when(userRepository.findByEmail("missing@mail.com")).thenReturn(Optional.empty());
-
-        assertThrows(UserNotFoundException.class, () -> authService.login(request));
-    }
-
-
-    @Test
-    void login_invalidPassword() {
-        LoginRequest request = new LoginRequest("test@mail.com", "wrong");
-
-        User user = new User();
-        user.setEmail("test@mail.com");
-        user.setPassword("encoded_pass");
-
-        when(userRepository.findByEmail("test@mail.com")).thenReturn(Optional.of(user));
-        when(passwordEncoder.matches("wrong", "encoded_pass")).thenReturn(false);
-
-        assertThrows(NotValidationPasswordException.class, () -> authService.login(request));
-    }
-}