[#330] 네트워크가 연결되어있음에도 앱을 시작할 시 간헐적으로 네트워크 관련 얼럿이 뜨는 현상을 해결한다 (#333)

* refactor: 옵셔널 포함하지만, 방출을 compactMap으로 처리하여 최초 Bool 값을 방출하지 않도록 개선

* style: 유즈케이스 단에서 removeDuplicates() 적용

Author: opficdev

DevLog/Domain/UseCase/Connectivity/ObserveNetworkConnectivityUseCaseImpl.swift

@@ -16,5 +16,7 @@ final class ObserveNetworkConnectivityUseCaseImpl: ObserveNetworkConnectivityUse
 
     func observe() -> AnyPublisher<Bool, Never> {
         repository.observeNetworkConnectivity()
+            .removeDuplicates()
+            .eraseToAnyPublisher()
     }
 }

DevLog/Infra/Service/NWPathConnectivityProvider.swift

@@ -11,12 +11,9 @@ import Combine
 final class NWPathConnectivityProvider {
     private let networkPathMonitor = NWPathMonitor()
     private let monitoringQueue = DispatchQueue(label: "NWPathConnectivityProviderQueue")
-    private let isConnectedSubject = CurrentValueSubject<Bool, Never>(false)
+    private let isConnectedSubject = CurrentValueSubject<Bool?, Never>(nil)
 
     init() {
-        let initialStatus = networkPathMonitor.currentPath.status == .satisfied
-        isConnectedSubject.send(initialStatus)
-
         networkPathMonitor.pathUpdateHandler = { [weak self] path in
             let connected = (path.status == .satisfied)
             self?.isConnectedSubject.send(connected)
@@ -30,6 +27,8 @@ final class NWPathConnectivityProvider {
     }
 
     func observeNetworkConnectivity() -> AnyPublisher<Bool, Never> {
-        isConnectedSubject.eraseToAnyPublisher()
+        isConnectedSubject
+            .compactMap { $0 }
+            .eraseToAnyPublisher()
     }
 }

DevLog/Presentation/ViewModel/HomeViewModel.swift

@@ -446,7 +446,6 @@ private extension HomeViewModel {
 
     func setupNetworkObserving() {
         networkConnectivityUseCase.observe()
-            .removeDuplicates()
             .receive(on: DispatchQueue.main)
             .sink { [weak self] isConnected in
                 self?.send(.networkStatusChanged(isConnected))

DevLog/Presentation/ViewModel/ProfileViewModel.swift

@@ -250,7 +250,6 @@ final class ProfileViewModel: Store {
 extension ProfileViewModel {
     private func setupNetworkObserving() {
         networkConnectivityUseCase.observe()
-            .removeDuplicates()
             .receive(on: DispatchQueue.main)
             .sink { [weak self] isConnected in
                 self?.send(.networkStatusChanged(isConnected))

DevLog/Presentation/ViewModel/RootViewModel.swift

@@ -99,7 +99,6 @@ private extension RootViewModel {
 
     func setupNetworkObserving() {
         networkConnectivityUseCase.observe()
-            .removeDuplicates()
             .receive(on: DispatchQueue.main)
             .sink { [weak self] isConnected in
                 self?.send(.networkStatusChanged(isConnected))

DevLog/Presentation/ViewModel/SettingViewModel.swift

@@ -174,7 +174,6 @@ private extension SettingViewModel {
 
     func setupNetworkObserving() {
         networkConnectivityUseCase.observe()
-            .removeDuplicates()
             .receive(on: DispatchQueue.main)
             .sink { [weak self] isConnected in
                 self?.send(.networkStatusChanged(isConnected))