✨ 그룹 삭제 로직 구현

Author: soopeach

data/src/main/java/com/whyranoid/data/group/GroupDataSource.kt

@@ -24,6 +24,11 @@ interface GroupDataSource {
         uid: String
     ): Boolean
 
+    suspend fun deleteGroup(
+        uid: String,
+        groupId: String
+    ): Boolean
+
     fun getGroupInfoFlow(uid: String, groupId: String): Flow<GroupInfo>
 
     suspend fun isDuplicatedGroupName(groupName: String): Boolean

data/src/main/java/com/whyranoid/data/group/GroupDataSourceImpl.kt

@@ -143,6 +143,28 @@ class GroupDataSourceImpl @Inject constructor(
         }
     }
 
+    override suspend fun deleteGroup(uid: String, groupId: String): Boolean {
+        return suspendCancellableCoroutine { cancellableContinuation ->
+            db.collection(GROUPS_COLLECTION)
+                .document(groupId)
+                .delete()
+                .addOnSuccessListener {
+                    db.collection(USERS_COLLECTION)
+                        .document(uid)
+                        .update(
+                            JOINED_GROUP_LIST,
+                            FieldValue.arrayRemove(groupId)
+                        ).addOnSuccessListener {
+                            cancellableContinuation.resume(true)
+                        }.addOnFailureListener {
+                            cancellableContinuation.resume(false)
+                        }
+                }.addOnFailureListener {
+                    cancellableContinuation.resume(false)
+                }
+        }
+    }
+
     override fun getGroupInfoFlow(uid: String, groupId: String): Flow<GroupInfo> = callbackFlow {
         db.collection(GROUPS_COLLECTION)
             .document(groupId)

data/src/main/java/com/whyranoid/data/group/GroupRepositoryImpl.kt

@@ -68,6 +68,10 @@ class GroupRepositoryImpl @Inject constructor(
         return groupDataSource.createGroup(groupName, introduce, rules, uid)
     }
 
+    override suspend fun deleteGroup(uid: String, groupId: String): Boolean {
+        return groupDataSource.deleteGroup(uid, groupId)
+    }
+
     override suspend fun isDuplicatedGroupName(groupName: String): Boolean {
         return groupDataSource.isDuplicatedGroupName(groupName)
     }

domain/src/main/java/com/whyranoid/domain/repository/GroupRepository.kt

@@ -48,5 +48,10 @@ interface GroupRepository {
         uid: String
     ): Boolean
 
+    suspend fun deleteGroup(
+        uid: String,
+        groupId: String
+    ): Boolean
+
     suspend fun isDuplicatedGroupName(groupName: String): Boolean
 }

domain/src/main/java/com/whyranoid/domain/usecase/DeleteGroupUseCase.kt

@@ -0,0 +1,15 @@
+package com.whyranoid.domain.usecase
+
+import com.whyranoid.domain.repository.AccountRepository
+import com.whyranoid.domain.repository.GroupRepository
+import javax.inject.Inject
+
+// TODO : 그룹원들은 어떻게 그룹을 나가게 하지?
+class DeleteGroupUseCase @Inject constructor(
+    private val accountRepository: AccountRepository,
+    private val groupRepository: GroupRepository
+) {
+    suspend operator fun invoke(groupId: String): Boolean {
+        return groupRepository.deleteGroup(accountRepository.getUid(), groupId)
+    }
+}