feat : create "create Party" api #10

backend/modumoa/src/main/java/com/ft/modumoa/controller/PartyController.java

@@ -1,10 +1,15 @@
 package com.ft.modumoa.controller;
 
+import com.ft.modumoa.config.auth.PrincipalDetails;
+import com.ft.modumoa.dto.PartyCreateResponseDTO;
 import com.ft.modumoa.dto.PartyListDTO;
+import com.ft.modumoa.dto.PartyCreateRequestDTO;
 import com.ft.modumoa.service.PartyService;
-import lombok.AllArgsConstructor;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
@@ -20,4 +25,10 @@ public class PartyController {
     public List<PartyListDTO> getPartyList(){
         return partyService.getAllPartyList();
     }
+
+    @PostMapping("/party/create")
+    public PartyCreateResponseDTO createParty(@RequestBody PartyCreateRequestDTO partyRequestDTO, @AuthenticationPrincipal PrincipalDetails user) {
+
+        return partyService.createParty(partyRequestDTO, user.getUser());
+    }
 }

backend/modumoa/src/main/java/com/ft/modumoa/dto/PartyCreateRequestDTO.java

@@ -0,0 +1,18 @@
+package com.ft.modumoa.dto;
+
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
+public class PartyCreateRequestDTO {
+
+    private String title;
+    private String content;
+    private String category;
+    private int max;
+    private LocalDateTime dueDate;
+}

backend/modumoa/src/main/java/com/ft/modumoa/dto/PartyCreateResponseDTO.java

@@ -0,0 +1,10 @@
+package com.ft.modumoa.dto;
+
+import lombok.Builder;
+import lombok.Data;
+
+@Data
+@Builder
+public class PartyCreateResponseDTO {
+    private Long id;
+}

backend/modumoa/src/main/java/com/ft/modumoa/entity/Party.java

@@ -1,5 +1,6 @@
 package com.ft.modumoa.entity;
 
+import lombok.Builder;
 import lombok.Data;
 import org.hibernate.annotations.CreationTimestamp;
 
@@ -8,6 +9,7 @@
 import java.time.LocalDateTime;
 
 @Data
+@Builder
 @Entity
 public class Party {
 

backend/modumoa/src/main/java/com/ft/modumoa/repository/CategoryRepository.java

@@ -1,7 +1,9 @@
 package com.ft.modumoa.repository;
 
 import com.ft.modumoa.entity.Category;
+import com.ft.modumoa.entity.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface CategoryRepository extends JpaRepository<Category, Long> {
+    public Category findByType(String type);
 }

backend/modumoa/src/main/java/com/ft/modumoa/service/PartyService.java

@@ -1,7 +1,11 @@
 package com.ft.modumoa.service;
 
+import com.ft.modumoa.dto.PartyCreateResponseDTO;
 import com.ft.modumoa.dto.PartyListDTO;
+import com.ft.modumoa.dto.PartyCreateRequestDTO;
 import com.ft.modumoa.entity.Party;
+import com.ft.modumoa.entity.User;
+import com.ft.modumoa.repository.CategoryRepository;
 import com.ft.modumoa.repository.PartyRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -16,15 +20,29 @@ public class PartyService {
     @Autowired
     private PartyRepository partyRepository;
 
-    public List<PartyListDTO> getAllPartyList(){
+    @Autowired
+    private CategoryRepository categoryRepository;
+
+    public List<PartyListDTO> getAllPartyList() {
 
         return partyRepository.findAll()
                 .stream()
                 .map(this::convertEntityToDto)
                 .collect(Collectors.toList());
     }
 
-    private PartyListDTO convertEntityToDto(Party party){
+    public PartyCreateResponseDTO createParty(PartyCreateRequestDTO partyRequestDTO, User user) {
+
+        Party party = convertDtoToEntity(partyRequestDTO, user);
+
+        party = partyRepository.save(party);
+
+        return PartyCreateResponseDTO.builder()
+                .id(party.getId())
+                .build();
+    }
+
+    private PartyListDTO convertEntityToDto(Party party) {
 
         return PartyListDTO.builder()
                 .id(party.getId())
@@ -38,4 +56,17 @@ private PartyListDTO convertEntityToDto(Party party){
                 .status(LocalDateTime.now().isBefore(party.getDeadline()))
                 .build();
     }
+
+    private Party convertDtoToEntity(PartyCreateRequestDTO partyRequestDTO, User user){
+        Party party = Party.builder()
+                .writer(user)
+                .category(categoryRepository.findByType(partyRequestDTO.getCategory()))
+                .title(partyRequestDTO.getTitle())
+                .content(partyRequestDTO.getContent())
+                .max(partyRequestDTO.getMax())
+                .current(0)
+                .create_at(LocalDateTime.now())
+                .deadline(partyRequestDTO.getDueDate())
+                .build();
+    }
 }