KKUMI-108 [FEAT] #90 - 포스트 삭제 후 Refresh

core/common-ui/src/main/java/com/marastro/mykkumi/common_ui/base/BaseFragment.kt

@@ -1,5 +1,6 @@
 package com.marastro.mykkumi.common_ui.base
 
+import android.annotation.SuppressLint
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -9,6 +10,7 @@ import androidx.databinding.DataBindingUtil
 import androidx.databinding.ViewDataBinding
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.lifecycleScope
+import com.google.android.material.internal.ViewUtils.hideKeyboard
 
 abstract class BaseFragment<T: ViewDataBinding>(
     @LayoutRes private val layoutId: Int
@@ -39,8 +41,11 @@ abstract class BaseFragment<T: ViewDataBinding>(
         binding.apply(block)
     }
 
+    @SuppressLint("RestrictedApi")
     override fun onDestroyView() {
+        view?.let { hideKeyboard(it) }
         _binding = null
         super.onDestroyView()
+
     }
 }

core/data/src/main/java/com/marastro/mykkumi/data/datasource/PostDataSource.kt

@@ -3,9 +3,12 @@ package com.marastro.mykkumi.data.datasource
 import com.marastro.mykkumi.data.dto.request.PostEditRequestDTO
 import com.marastro.mykkumi.data.dto.response.HomePostListDTO
 import com.marastro.mykkumi.data.dto.response.PostEditResponseDTO
+import retrofit2.Response
 import retrofit2.http.Body
+import retrofit2.http.DELETE
 import retrofit2.http.GET
 import retrofit2.http.POST
+import retrofit2.http.Path
 import retrofit2.http.Query
 
 interface PostDataSource {
@@ -19,4 +22,9 @@ interface PostDataSource {
     suspend fun uploadPost(
         @Body params: PostEditRequestDTO
     ) : PostEditResponseDTO
+
+    @DELETE("/api/v1/posts/{postId}")
+    suspend fun deletePost(
+        @Path("postId") postId: Int
+    ) : Response<Void?>?
 }

core/data/src/main/java/com/marastro/mykkumi/data/repository/PostRepositoryImpl.kt

@@ -1,5 +1,6 @@
 package com.marastro.mykkumi.data.repository
 
+import com.google.gson.Gson
 import com.marastro.mykkumi.data.datasource.PostDataSource
 import com.marastro.mykkumi.data.dto.request.PostEditRequestDTO
 import com.marastro.mykkumi.data.dto.request.PostImageRequestDTO
@@ -8,13 +9,22 @@ import com.marastro.mykkumi.data.dto.request.PostProductRequestDTO
 import com.marastro.mykkumi.domain.entity.HomePostListVO
 import com.marastro.mykkumi.domain.entity.PostEditResponseVO
 import com.marastro.mykkumi.domain.entity.PostImageVO
+import com.marastro.mykkumi.domain.exception.ApiException
+import com.marastro.mykkumi.domain.exception.ErrorResponse
 import com.marastro.mykkumi.domain.repository.PostRepository
+import retrofit2.HttpException
 import javax.inject.Inject
 
 class PostRepositoryImpl @Inject constructor(
     private val postDataSource: PostDataSource
 ) : PostRepository {
 
+    private companion object {
+        private const val INVALID_TOKEN = "INVALID_TOKEN"
+        private const val INVALID_VALUE = "INVALID_VALUE"
+        private const val ACCESS_DENIED = "ACCESS_DENIED"
+    }
+
     override suspend fun getHomePostList(cursor: String?, limit: Int?): HomePostListVO {
         return postDataSource.getHomePostList(cursor, limit).toEntity()
     }
@@ -43,4 +53,26 @@ class PostRepositoryImpl @Inject constructor(
             )
         ).toEntity()
     }
+
+    override suspend fun deletePost(postId: Int) : Boolean {
+        try {
+            postDataSource.deletePost(postId)
+
+            return true
+        } catch (e: HttpException) {
+            handleApiException(e)
+        }
+    }
+
+    private fun handleApiException(exception: HttpException): Nothing {
+        val errorBody = exception.response()?.errorBody()?.string()
+        val errorResponse = Gson().fromJson(errorBody, ErrorResponse::class.java)
+
+        when (errorResponse.errorCode) {
+            INVALID_TOKEN -> throw ApiException.InvalidTokenException() // 만료된 토큰
+            INVALID_VALUE -> throw ApiException.InvalidPostValue(errorResponse.message) // 존재하지 않는 게시물
+            ACCESS_DENIED -> throw ApiException.AccessDeniedUserForPost(errorResponse.message) // 삭제 권한 없음
+            else -> throw ApiException.UnknownApiException("An unknown error occurred: ${errorResponse.message}")
+        }
+    }
 }

core/domain/src/main/java/com/marastro/mykkumi/domain/exception/ApiException.kt

@@ -3,7 +3,9 @@ package com.marastro.mykkumi.domain.exception
 sealed class ApiException(message: String) : Exception(message) {
     class InvalidTokenException : ApiException("Invalid token. Please log in again.")
     class DuplicateValueException(message: String) : ApiException(message)
+    class AccessDeniedUserForPost(message: String): ApiException(message)
     class InvalidNickNameValue(message: String): ApiException(message)
+    class InvalidPostValue(message: String): ApiException(message)
     class InvalidRefreshTokenException : ApiException("장시간 접속하지 않아 로그아웃 되었습니다.")
     class DuplicateReportException(message: String) : ApiException(message)
     class NotFoundException(message: String) : ApiException(message)

core/domain/src/main/java/com/marastro/mykkumi/domain/repository/PostRepository.kt

@@ -7,4 +7,5 @@ import com.marastro.mykkumi.domain.entity.PostImageVO
 interface PostRepository {
     suspend fun getHomePostList(cursor: String?, limit: Int?): HomePostListVO
     suspend fun uploadPost(subCategory: Long, content: String?, postImages: MutableList<PostImageVO>): PostEditResponseVO
+    suspend fun deletePost(postId: Int) : Boolean
 }

core/domain/src/main/java/com/marastro/mykkumi/domain/usecase/post/DeletePostUseCase.kt

@@ -0,0 +1,12 @@
+package com.marastro.mykkumi.domain.usecase.post
+
+import com.marastro.mykkumi.domain.repository.PostRepository
+import javax.inject.Inject
+
+class DeletePostUseCase @Inject constructor(
+    private val repository: PostRepository
+) {
+    suspend operator fun invoke(postId: Int): Boolean {
+        return repository.deletePost(postId)
+    }
+}

feature/home/src/main/java/com/marastro/mykkumi/feature/home/HomeFragment.kt

@@ -77,6 +77,14 @@ class HomeFragment : BaseFragment<FragmentHomeBinding>(R.layout.fragment_home),
             binding.swipeRefreshLayout.isRefreshing = false
         }
 
+        // 포스트 삭제됨 -> 새로 고침
+        viewModel.isDeletePostDone.observe(viewLifecycleOwner, Observer { isDeletePostDone ->
+            if(isDeletePostDone) {
+                onResume()
+                viewModel.doneResume()
+            }
+        })
+
         // 포스트 리스트 추가
         viewModel.postCursor.observe(viewLifecycleOwner, Observer {
             if(postListAdapter.postList.size != viewModel.postListUiState.value.size) {
@@ -325,7 +333,12 @@ class HomeFragment : BaseFragment<FragmentHomeBinding>(R.layout.fragment_home),
     fun deletePostDialog(postId: Int) {
         val dialog = PostDeleteConfirmDialog(this)
         dialog.setOnClickListener { postId ->
-            Log.d("test", "${postId} 게시물 삭제")
+            viewModel.deletePost(
+                postId = postId,
+                showToast = {
+                    showToast(it)
+                }
+            )
         }
         dialog.show(postId)
     }

feature/home/src/main/java/com/marastro/mykkumi/feature/home/HomeViewModel.kt

@@ -19,6 +19,7 @@ import com.marastro.mykkumi.domain.usecase.post.GetHomePostListUseCase
 import com.marastro.mykkumi.domain.usecase.report.ReportPostUseCase
 import com.marastro.mykkumi.domain.usecase.report.ReportUserUseCase
 import com.marastro.mykkumi.common_ui.post.ViewProductInfoBottomSheet
+import com.marastro.mykkumi.domain.usecase.post.DeletePostUseCase
 import com.marastro.mykkumi.feature.home.report.ChooseReportBottomSheet
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
@@ -33,6 +34,7 @@ import javax.inject.Inject
 class HomeViewModel @Inject constructor(
     private val getBannerListUseCase: GetBannerListUseCase,
     private val getHomePostListUseCase: GetHomePostListUseCase,
+    private val deletePostUseCase: DeletePostUseCase,
     private val authTokenDataStore: AuthTokenDataStore,
     private val reportPostUseCase: ReportPostUseCase,
     private val reportUserUseCase: ReportUserUseCase,
@@ -66,6 +68,9 @@ class HomeViewModel @Inject constructor(
     private var _userNickname = MutableStateFlow<String>("")
     val userNickname: StateFlow<String> get() = _userNickname
 
+    private var _isDeletePostDone = MutableLiveData<Boolean>(false)
+    val isDeletePostDone: LiveData<Boolean> get() = _isDeletePostDone
+
     // 유저 정보 세팅
     fun initUserInfo() {
         _userNickname.value = authTokenDataStore.getUserNickname() ?: ""
@@ -89,8 +94,6 @@ class HomeViewModel @Inject constructor(
                 _bannerListUiState.emit( mutableListOf() )
             }
         }
-
-
     }
 
     // 홈 > 배너 캐러셀에서 배너 선택
@@ -205,4 +208,27 @@ class HomeViewModel @Inject constructor(
         bottomSheet.arguments = bundle
         bottomSheet.show(fragment.parentFragmentManager, bottomSheet.tag)
     }
+
+    // 포스트 삭제
+    fun deletePost(
+        postId: Int,
+        showToast: (message: String) -> Unit
+    ) {
+        viewModelScope.launch {
+            try {
+                deletePostUseCase(postId)
+
+                showToast("게시물이 삭제되었습니다")
+                _isDeletePostDone.setValue(true)
+            } catch (e: ApiException.AccessDeniedUserForPost) {
+                e.message?.let { showToast(it) }
+            } catch (e: ApiException.InvalidPostValue) {
+                e.message?.let { showToast(it) }
+            }
+        }
+    }
+
+    fun doneResume() {
+        _isDeletePostDone.setValue(false)
+    }
 }

feature/home/src/main/java/com/marastro/mykkumi/feature/home/post/PostListAdapter.kt

@@ -156,7 +156,6 @@ class PostListAdapter (
 
             // 로그인 했을 때
             if(viewModel.isLogined.value) {
-                Log.d("test", "${item.writer.nickname}, ${userNickname}")
                 // 내가 쓴 글일 때
                 if(item.writer.nickname == userNickname) {
                     binding.includePostWriter.btnFollow.visibility = View.GONE // 팔로우 숨기기