✨ 게시글 삭제 기능 구현

soopeach · soopeach · commit 1ae3ccf1f62f · 2022-12-03T18:57:46.000+09:00
diff --git a/data/src/main/java/com/whyranoid/data/post/PostDataSource.kt b/data/src/main/java/com/whyranoid/data/post/PostDataSource.kt
@@ -19,4 +19,6 @@ interface PostDataSource {
         runningHistoryId: String,
         content: String
     ): Result<Boolean>
+
+    suspend fun deletePost(postId: String): Boolean
 }
diff --git a/data/src/main/java/com/whyranoid/data/post/PostDataSourceImpl.kt b/data/src/main/java/com/whyranoid/data/post/PostDataSourceImpl.kt
@@ -268,4 +268,17 @@ class PostDataSourceImpl @Inject constructor(
             }
         }
     }
+
+    override suspend fun deletePost(postId: String): Boolean {
+        return suspendCancellableCoroutine { cancellableContinuation ->
+            db.collection(CollectionId.POST_COLLECTION)
+                .document(postId)
+                .delete()
+                .addOnSuccessListener {
+                    cancellableContinuation.resume(true)
+                }.addOnFailureListener {
+                    cancellableContinuation.resume(false)
+                }
+        }
+    }
 }
diff --git a/data/src/main/java/com/whyranoid/data/post/PostRepositoryImpl.kt b/data/src/main/java/com/whyranoid/data/post/PostRepositoryImpl.kt
@@ -38,7 +38,7 @@ class PostRepositoryImpl @Inject constructor(
     }
 
     override suspend fun deletePost(postId: String): Boolean {
-        TODO("Not yet implemented")
+        return postDataSource.deletePost(postId)
     }
 
     override suspend fun updatePost(postId: String, postContent: String, updatedAt: Long): Boolean {
diff --git a/presentation/src/main/java/com/whyranoid/presentation/community/CommunityItemFragment.kt b/presentation/src/main/java/com/whyranoid/presentation/community/CommunityItemFragment.kt
@@ -83,14 +83,31 @@ internal class CommunityItemFragment :
                     ).show()
                 }
             }
+            is Event.DeletePost -> {
+                if (event.isSuccess) {
+                    Snackbar.make(
+                        binding.root,
+                        getString(R.string.text_delete_post_success),
+                        Snackbar.LENGTH_SHORT
+                    ).show()
+                } else {
+                    Snackbar.make(
+                        binding.root,
+                        getString(R.string.text_delete_post_fail),
+                        Snackbar.LENGTH_SHORT
+                    ).show()
+                }
+            }
         }
     }
 
     private fun setPostAdapter() {
         viewLifecycleOwner.lifecycleScope.launch {
-            val postAdapter = PostAdapter {
-                viewModel.onGroupJoinButtonClicked(it)
-            }
+            val postAdapter = PostAdapter(
+                buttonClickListener = {
+                    viewModel.onGroupJoinButtonClicked(it)
+                }
+            )
             binding.rvCommunity.adapter = postAdapter
 
             viewLifecycleOwner.repeatWhenUiStarted {
@@ -124,9 +141,18 @@ internal class CommunityItemFragment :
 
     private fun setMyPostAdapter() {
         viewLifecycleOwner.lifecycleScope.launch {
-            val postAdapter = PostAdapter {
-                viewModel.onGroupJoinButtonClicked(it)
-            }
+            val postAdapter = PostAdapter(
+                isMyPost = true,
+                itemLongClickListener = { postId ->
+                    Snackbar.make(
+                        binding.root,
+                        getString(R.string.text_check_delete_post),
+                        Snackbar.LENGTH_SHORT
+                    ).setAction(R.string.text_delete) {
+                        viewModel.deletePost(postId)
+                    }.show()
+                }
+            )
             binding.rvCommunity.adapter = postAdapter
 
             viewLifecycleOwner.repeatWhenUiStarted {
diff --git a/presentation/src/main/java/com/whyranoid/presentation/community/CommunityViewModel.kt b/presentation/src/main/java/com/whyranoid/presentation/community/CommunityViewModel.kt
@@ -3,6 +3,7 @@ package com.whyranoid.presentation.community
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.whyranoid.domain.model.Post
+import com.whyranoid.domain.usecase.DeletePostUseCase
 import com.whyranoid.domain.usecase.GetMyGroupListUseCase
 import com.whyranoid.domain.usecase.GetMyPostUseCase
 import com.whyranoid.domain.usecase.GetPostsUseCase
@@ -26,7 +27,8 @@ class CommunityViewModel @Inject constructor(
     getMyGroupListUseCase: GetMyGroupListUseCase,
     getPostsUseCase: GetPostsUseCase,
     private val joinGroupUseCase: JoinGroupUseCase,
-    private val getMyPostUseCase: GetMyPostUseCase
+    private val getMyPostUseCase: GetMyPostUseCase,
+    private val deletePostUseCase: DeletePostUseCase
 ) : ViewModel() {
 
     private val _postList = MutableStateFlow<List<Post>>(emptyList())
@@ -62,6 +64,13 @@ class CommunityViewModel @Inject constructor(
                         _eventFlow.emit(event.copy(isSuccess = false))
                     }
                 }
+                is Event.DeletePost -> {
+                    if (event.isSuccess) {
+                        _eventFlow.emit(event)
+                    } else {
+                        _eventFlow.emit(event.copy(isSuccess = false))
+                    }
+                }
             }
         }
     }
@@ -72,6 +81,12 @@ class CommunityViewModel @Inject constructor(
         }
     }
 
+    fun deletePost(postId: String) {
+        viewModelScope.launch {
+            emitEvent(Event.DeletePost(deletePostUseCase(postId)))
+        }
+    }
+
     init {
         viewModelScope.launch {
             getMyGroupListUseCase().onEach { groupInfoList ->
diff --git a/presentation/src/main/java/com/whyranoid/presentation/community/Event.kt b/presentation/src/main/java/com/whyranoid/presentation/community/Event.kt
@@ -5,4 +5,5 @@ import com.whyranoid.presentation.model.GroupInfoUiModel
 sealed class Event {
     data class GroupItemClick(val groupInfo: GroupInfoUiModel) : Event()
     data class JoinGroup(val isSuccess: Boolean = true) : Event()
+    data class DeletePost(val isSuccess: Boolean = true) : Event()
 }
diff --git a/presentation/src/main/java/com/whyranoid/presentation/community/PostAdapter.kt b/presentation/src/main/java/com/whyranoid/presentation/community/PostAdapter.kt
@@ -15,7 +15,9 @@ import com.whyranoid.presentation.databinding.ItemRunningPostBinding
 import com.whyranoid.presentation.model.GroupInfoUiModel
 
 class PostAdapter(
-    private val buttonClickListener: (String) -> Unit
+    private val isMyPost: Boolean = false,
+    private val itemLongClickListener: (String) -> Unit = {},
+    private val buttonClickListener: (String) -> Unit = {}
 ) : ListAdapter<Post, PostAdapter.PostViewHolder>(diffUtil) {
 
     private lateinit var myGroupList: List<GroupInfoUiModel>
@@ -95,7 +97,14 @@ class PostAdapter(
     }
 
     override fun onBindViewHolder(holder: PostViewHolder, position: Int) {
-        holder.bind(getItem(position))
+        val curPost = getItem(position)
+        holder.apply {
+            bind(curPost)
+            if (isMyPost) this.itemView.setOnLongClickListener {
+                itemLongClickListener(curPost.postId)
+                true
+            }
+        }
     }
 
     fun setMyGroupList(myGroupList: List<GroupInfoUiModel>) {
diff --git a/presentation/src/main/res/values/strings.xml b/presentation/src/main/res/values/strings.xml
@@ -34,6 +34,10 @@
     <string name="community_fail_create_running_post">인증글 작성에 실패했습니다</string>
     <string name="community_success_create_running_post">인증글이 등록되었습니다!</string>
     <string name="community_create_running_post_hint">인증글 내용을 입력하세요!</string>
+    <string name="text_delete_post_success">게시글 삭제에 성공하였습니다!</string>
+    <string name="text_delete_post_fail">게시글 삭제에 실패하였습니다!</string>
+    <string name="text_check_delete_post">해당 포스트를 삭제하시겠습니까?</string>
+    <string name="text_delete">삭제</string>
 
     <!-- 마이런 탭 화면 -->
     <string name="my_run_tool_bar_menu_setting">설정</string>

Original file line number	Diff line number	Diff line change
`@@ -19,4 +19,6 @@ interface PostDataSource {`
`19`	`19`	`runningHistoryId: String,`
`20`	`20`	`content: String`
`21`	`21`	`): Result<Boolean>`
	`22`	`+`
	`23`	`+ suspend fun deletePost(postId: String): Boolean`
`22`	`24`	`}`
Original file line number	Diff line number	Diff line change
`@@ -268,4 +268,17 @@ class PostDataSourceImpl @Inject constructor(`
`268`	`268`	`}`
`269`	`269`	`}`
`270`	`270`	`}`
	`271`	`+`
	`272`	`+ override suspend fun deletePost(postId: String): Boolean {`
	`273`	`+ return suspendCancellableCoroutine { cancellableContinuation ->`
	`274`	`+ db.collection(CollectionId.POST_COLLECTION)`
	`275`	`+ .document(postId)`
	`276`	`+ .delete()`
	`277`	`+ .addOnSuccessListener {`
	`278`	`+ cancellableContinuation.resume(true)`
	`279`	`+ }.addOnFailureListener {`
	`280`	`+ cancellableContinuation.resume(false)`
	`281`	`+ }`
	`282`	`+ }`
	`283`	`+ }`
`271`	`284`	`}`
Original file line number	Diff line number	Diff line change
`@@ -38,7 +38,7 @@ class PostRepositoryImpl @Inject constructor(`
`38`	`38`	`}`
`39`	`39`
`40`	`40`	`override suspend fun deletePost(postId: String): Boolean {`
`41`		`- TODO("Not yet implemented")`
	`41`	`+ return postDataSource.deletePost(postId)`
`42`	`42`	`}`
`43`	`43`
`44`	`44`	`override suspend fun updatePost(postId: String, postContent: String, updatedAt: Long): Boolean {`
Original file line number	Diff line number	Diff line change
`@@ -5,4 +5,5 @@ import com.whyranoid.presentation.model.GroupInfoUiModel`
`5`	`5`	`sealed class Event {`
`6`	`6`	`data class GroupItemClick(val groupInfo: GroupInfoUiModel) : Event()`
`7`	`7`	`data class JoinGroup(val isSuccess: Boolean = true) : Event()`
	`8`	`+ data class DeletePost(val isSuccess: Boolean = true) : Event()`
`8`	`9`	`}`