Chore/conversation controller functionalities (#12)

* add get all conversations

* add get conversation by id

* add List<Discussion> for conversation

* make code spotless

* add entity mapper

* add entity mapper

* modify entity mapper

* modify entity mapper

* modify entity mapper

* added Base Model

* added Base Model

* refactor model package to dto

backend/src/main/java/com/llm_service/llm_service/controller/conversation/ConversationController.java

@@ -1,8 +1,9 @@
 package com.llm_service.llm_service.controller.conversation;
 
+import com.llm_service.llm_service.dto.Conversation;
 import com.llm_service.llm_service.exception.conversation.ConversationNotFoundException;
-import com.llm_service.llm_service.model.Conversation;
 import com.llm_service.llm_service.service.ConversationService;
+import java.util.List;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
@@ -17,12 +18,20 @@ public class ConversationController {
     private final ConversationService conversationService;
     private final ConversationControllerMapper conversationControllerMapper;
 
+    @GetMapping()
+    public ResponseEntity<List<ConversationResponse>> getAllConversations() {
+        return ResponseEntity.ok(conversationService.getAll().stream()
+                .map(conversationControllerMapper::map)
+                .toList());
+    }
+
     @GetMapping("/{id}")
-    public ResponseEntity<Conversation> getConversationById(@PathVariable UUID id)
+    public ResponseEntity<ConversationResponse> getConversationById(@PathVariable UUID id)
             throws ConversationNotFoundException {
-        Conversation conversation = conversationService.getByID(id);
+        Conversation conversation =
+                conversationService.getByID(id).orElseThrow(() -> new ConversationNotFoundException(id));
 
-        return ResponseEntity.status(HttpStatus.OK).body(conversation);
+        return ResponseEntity.status(HttpStatus.OK).body(conversationControllerMapper.map(conversation));
     }
 
     @PostMapping()

backend/src/main/java/com/llm_service/llm_service/controller/conversation/ConversationControllerMapper.java

@@ -1,6 +1,6 @@
 package com.llm_service.llm_service.controller.conversation;
 
-import com.llm_service.llm_service.model.Conversation;
+import com.llm_service.llm_service.dto.Conversation;
 import org.mapstruct.Mapper;
 
 @Mapper(componentModel = "spring")

backend/src/main/java/com/llm_service/llm_service/controller/conversation/ConversationResponse.java

@@ -1,5 +1,6 @@
 package com.llm_service.llm_service.controller.conversation;
 
+import java.util.List;
 import java.util.UUID;
 import lombok.Builder;
 import lombok.Value;
@@ -11,4 +12,5 @@
 public class ConversationResponse {
     UUID id;
     String text;
+    List<UUID> discussions;
 }

backend/src/main/java/com/llm_service/llm_service/controller/discussion/DiscussionControllerMapper.java

@@ -1,7 +1,7 @@
 package com.llm_service.llm_service.controller.discussion;
 
-import com.llm_service.llm_service.model.Conversation;
-import com.llm_service.llm_service.model.Discussion;
+import com.llm_service.llm_service.dto.Conversation;
+import com.llm_service.llm_service.dto.Discussion;
 import java.util.UUID;
 import org.mapstruct.Mapper;
 

backend/src/main/java/com/llm_service/llm_service/dto/Base.java

@@ -0,0 +1,14 @@
+package com.llm_service.llm_service.dto;
+
+import java.time.Instant;
+import java.util.UUID;
+import lombok.Data;
+import lombok.experimental.SuperBuilder;
+
+@SuperBuilder(toBuilder = true)
+@Data
+public abstract class Base {
+    UUID id;
+    Instant createdOn;
+    Instant lastUpdatedOn;
+}

backend/src/main/java/com/llm_service/llm_service/dto/Conversation.java

@@ -0,0 +1,14 @@
+package com.llm_service.llm_service.dto;
+
+import java.util.List;
+import java.util.UUID;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.SuperBuilder;
+
+@EqualsAndHashCode(callSuper = true)
+@SuperBuilder(toBuilder = true)
+@Data
+public class Conversation extends Base {
+    List<UUID> discussions;
+}

backend/src/main/java/com/llm_service/llm_service/dto/Discussion.java

@@ -0,0 +1,17 @@
+package com.llm_service.llm_service.dto;
+
+import com.llm_service.llm_service.persistance.entities.DiscussionRole;
+import java.util.UUID;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.SuperBuilder;
+
+@EqualsAndHashCode(callSuper = true)
+@SuperBuilder(toBuilder = true)
+@Data
+public class Discussion extends Base {
+    UUID id;
+    String text;
+    DiscussionRole promptRole;
+    Conversation conversation;
+}

backend/src/main/java/com/llm_service/llm_service/persistance/entities/ConversationEntity.java

@@ -10,9 +10,6 @@
 @Table(name = "conversation")
 @Data
 public class ConversationEntity extends BaseEntity {
-    @Column(name = "title")
-    private String title;
-
     @OneToMany
     private List<DiscussionEntity> discussions;
 }

backend/src/main/java/com/llm_service/llm_service/persistance/repositories/conversation/ConversationEntityMapper.java

@@ -1,12 +1,23 @@
 package com.llm_service.llm_service.persistance.repositories.conversation;
 
-import com.llm_service.llm_service.model.Conversation;
+import com.llm_service.llm_service.dto.Conversation;
 import com.llm_service.llm_service.persistance.entities.ConversationEntity;
+import com.llm_service.llm_service.persistance.entities.DiscussionEntity;
+import java.util.List;
+import java.util.UUID;
 import org.mapstruct.Mapper;
 
 @Mapper(componentModel = "spring")
 public interface ConversationEntityMapper {
     Conversation map(ConversationEntity conversationEntity);
 
     ConversationEntity map(Conversation conversation);
+
+    List<UUID> map(List<DiscussionEntity> discussionEntities);
+
+    List<DiscussionEntity> mapToEntities(List<UUID> discussionIds);
+
+    UUID map(DiscussionEntity discussionEntity);
+
+    DiscussionEntity map(UUID value);
 }

backend/src/main/java/com/llm_service/llm_service/persistance/repositories/conversation/ConversationJpaPersistenceManager.java

@@ -1,6 +1,6 @@
 package com.llm_service.llm_service.persistance.repositories.conversation;
 
-import com.llm_service.llm_service.model.Conversation;
+import com.llm_service.llm_service.dto.Conversation;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;

backend/src/main/java/com/llm_service/llm_service/persistance/repositories/conversation/ConversationPersistenceManager.java

@@ -1,6 +1,6 @@
 package com.llm_service.llm_service.persistance.repositories.conversation;
 
-import com.llm_service.llm_service.model.Conversation;
+import com.llm_service.llm_service.dto.Conversation;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;

backend/src/main/java/com/llm_service/llm_service/persistance/repositories/discussion/DiscussionEntityMapper.java

@@ -1,12 +1,24 @@
 package com.llm_service.llm_service.persistance.repositories.discussion;
 
-import com.llm_service.llm_service.model.Discussion;
+import com.llm_service.llm_service.dto.Discussion;
 import com.llm_service.llm_service.persistance.entities.DiscussionEntity;
+import java.util.List;
+import java.util.UUID;
 import org.mapstruct.Mapper;
 
 @Mapper(componentModel = "spring")
 public interface DiscussionEntityMapper {
     Discussion map(DiscussionEntity discussionEntity);
 
     DiscussionEntity map(Discussion discussion);
+
+    // TODO Thee mappings should be removed,
+    //  should be done with @Mapper annotation
+    List<UUID> map(List<DiscussionEntity> discussionEntities);
+
+    UUID mapToId(DiscussionEntity discussionEntity);
+
+    List<DiscussionEntity> mapToEntities(List<UUID> discussionIds);
+
+    DiscussionEntity map(UUID value);
 }

backend/src/main/java/com/llm_service/llm_service/persistance/repositories/discussion/DiscussionJpaPersistenceManager.java

@@ -1,6 +1,6 @@
 package com.llm_service.llm_service.persistance.repositories.discussion;
 
-import com.llm_service.llm_service.model.Discussion;
+import com.llm_service.llm_service.dto.Discussion;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;

backend/src/main/java/com/llm_service/llm_service/persistance/repositories/discussion/DiscussionPersistenceManager.java

@@ -1,6 +1,6 @@
 package com.llm_service.llm_service.persistance.repositories.discussion;
 
-import com.llm_service.llm_service.model.Discussion;
+import com.llm_service.llm_service.dto.Discussion;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;

backend/src/main/java/com/llm_service/llm_service/service/ConversationService.java

@@ -1,8 +1,11 @@
 package com.llm_service.llm_service.service;
 
 import com.llm_service.llm_service.controller.conversation.ConversationRequest;
+import com.llm_service.llm_service.dto.Conversation;
 import com.llm_service.llm_service.exception.conversation.ConversationNotFoundException;
-import com.llm_service.llm_service.model.Conversation;
+import com.llm_service.llm_service.persistance.repositories.conversation.ConversationPersistenceManager;
+import java.util.List;
+import java.util.Optional;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -11,20 +14,23 @@
 @RequiredArgsConstructor
 public class ConversationService {
     private final LLMService llmService;
+    private final ConversationPersistenceManager conversationPersistenceManager;
 
     public Conversation start() {
-        return null;
+        Conversation conversation = Conversation.builder().discussions(null).build();
+        return conversationPersistenceManager.save(conversation);
     }
 
-    public Conversation getByID(UUID id) throws ConversationNotFoundException {
-        return null;
+    public List<Conversation> getAll() {
+        return conversationPersistenceManager.findAll();
+    }
+
+    public Optional<Conversation> getByID(UUID id) {
+        return conversationPersistenceManager.findById(id);
     }
 
     public Conversation update(UUID id, ConversationRequest conversationRequest) throws ConversationNotFoundException {
-        return Conversation.builder()
-                .id(id)
-                .text(getPrediction(id, conversationRequest.getText()))
-                .build();
+        return Conversation.builder().id(id).build();
     }
 
     private String getPrediction(UUID id, String text) {