[#213] 푸시 알람을 탭하면 관련 Todo를 보여주도록 구현한다

DevLog/App/Assembler/DomainAssembler.swift

@@ -51,8 +51,8 @@ private extension DomainAssembler {
     }
 
     func registerTodoUseCases(_ container: DIContainer) {
-        container.register(FetchTodoByIDUseCase.self) {
-            FetchTodoByIDUseCaseImpl(container.resolve(TodoRepository.self))
+        container.register(FetchTodoByIdUseCase.self) {
+            FetchTodoByIdUseCaseImpl(container.resolve(TodoRepository.self))
         }
 
         container.register(FetchTodosUseCase.self) {

DevLog/App/Delegate/AppDelegate.swift

@@ -50,7 +50,9 @@ class AppDelegate: UIResponder, UIApplicationDelegate, MessagingDelegate {
 
         // 앱이 완전 종료되어도, 알림을 통해 앱이 시작된 경우 처리
         if let remoteNotification = launchOptions?[.remoteNotification] as? [AnyHashable: Any] {
-            NotificationCenter.default.post(name: .pushTapped, object: nil, userInfo: remoteNotification)
+            Task { @MainActor in
+                PushNotificationRoute.shared.handlePushTap(userInfo: remoteNotification)
+            }
         }
 
         return true
@@ -114,14 +116,14 @@ extension AppDelegate: UNUserNotificationCenterDelegate {
         withCompletionHandler completionHandler: @escaping () -> Void
     ) {
         logger.info("Tapped notification: \(response.notification.request.content.userInfo)")
-        // userInfo["todoId"]로 이동할 Todo 식별
         let userInfo = response.notification.request.content.userInfo
-        NotificationCenter.default.post(name: .pushTapped, object: nil, userInfo: userInfo)
+        Task { @MainActor in
+            PushNotificationRoute.shared.handlePushTap(userInfo: userInfo)
+        }
         completionHandler()
     }
 }
 
 extension Notification.Name {
     static let fcmToken = Notification.Name("fcmToken")
-    static let pushTapped = Notification.Name("pushTapped")
 }

DevLog/App/RootView.swift

@@ -10,6 +10,7 @@ import SwiftUI
 struct RootView: View {
     @Environment(\.diContainer) var container: DIContainer
     @State var viewModel: RootViewModel
+    @State private var selectedRoute: AppRoute?
 
     var body: some View {
         ZStack {
@@ -56,5 +57,29 @@ struct RootView: View {
                 viewModel.send(.signOutAuto)
             }
         }
+        .sheet(item: $selectedRoute) { route in
+            switch route {
+            case .todoDetail(let todoId):
+                NavigationStack {
+                    TodoDetailView(viewModel: TodoDetailViewModel(
+                        fetchUseCase: container.resolve(FetchTodoByIdUseCase.self),
+                        upsertUseCase: container.resolve(UpsertTodoUseCase.self),
+                        todoId: todoId,
+                        showEditButton: false
+                    ))
+                    .toolbar {
+                        ToolbarLeadingButton {
+                            selectedRoute = nil
+                        }
+                    }
+                }
+                .background(Color(.secondarySystemBackground))
+                .presentationDragIndicator(.visible)
+            }
+        }
+        .onReceive(PushNotificationRoute.shared.publisher) { route in
+            selectedRoute = route
+            PushNotificationRoute.shared.clear()
+        }
     }
 }

DevLog/App/Routing/PushNotificationRoute.swift

@@ -0,0 +1,50 @@
+//
+//  PushNotificationRoute.swift
+//  DevLog
+//
+//  Created by opfic on 3/8/26.
+//
+
+import Foundation
+import Combine
+
+enum AppRoute: Equatable, Identifiable {
+    case todoDetail(String)
+
+    var id: String {
+        switch self {
+        case .todoDetail(let todoId):
+            return "todo:\(todoId)"
+        }
+    }
+}
+
+final class PushNotificationRoute {
+    static let shared = PushNotificationRoute()
+
+    var publisher: AnyPublisher<AppRoute, Never> {
+        subject
+            .compactMap { $0 }
+            .eraseToAnyPublisher()
+    }
+
+    private let subject = CurrentValueSubject<AppRoute?, Never>(nil)
+
+    private init() { }
+
+    func handlePushTap(userInfo: [AnyHashable: Any]) {
+        guard let todoId = extractTodoId(from: userInfo) else { return }
+        subject.send(.todoDetail(todoId))
+    }
+
+    func clear() {
+        subject.send(nil)
+    }
+
+    private func extractTodoId(from userInfo: [AnyHashable: Any]) -> String? {
+        guard let todoId = userInfo["todoId"] as? String, !todoId.isEmpty else {
+            return nil
+        }
+        return todoId
+    }
+}

DevLog/Data/DTO/PushNotificationResponse.swift

@@ -13,6 +13,6 @@ struct PushNotificationResponse {
     let body: String
     let receivedAt: Date
     let isRead: Bool
-    let todoID: String
+    let todoId: String
     let todoKind: String
 }

DevLog/Data/Mapper/PushNotificationMapping.swift

@@ -17,7 +17,7 @@ extension PushNotificationResponse {
             body: self.body,
             receivedAt: self.receivedAt,
             isRead: self.isRead,
-            todoID: self.todoID,
+            todoId: self.todoId,
             todoKind: todoKind
         )
     }

DevLog/Data/Repository/PushNotificationRepositoryImpl.swift

@@ -6,6 +6,7 @@
 //
 
 import Foundation
+import Combine
 
 final class PushNotificationRepositoryImpl: PushNotificationRepository {
     private let service: PushNotificationService
@@ -41,13 +42,22 @@ final class PushNotificationRepositoryImpl: PushNotificationRepository {
         return try response.toDomain()
     }
 
+    func observeNotifications(
+        _ query: PushNotificationQuery,
+        limit: Int
+    ) throws -> AnyPublisher<PushNotificationPage, Error> {
+        try service.observeNotifications(query, limit: limit)
+            .tryMap { try $0.toDomain() }
+            .eraseToAnyPublisher()
+    }
+
     // 푸시 알림 기록 삭제
     func deleteNotification(_ notificationID: String) async throws {
         try await service.deleteNotification(notificationID)
     }
 
     // 푸시 알림 읽음/안읽음 토글
-    func toggleNotificationRead(_ todoID: String) async throws {
-        try await service.toggleNotificationRead(todoID)
+    func toggleNotificationRead(_ todoId: String) async throws {
+        try await service.toggleNotificationRead(todoId)
     }
 }

DevLog/Data/Repository/TodoRepositoryImpl.swift

@@ -20,8 +20,8 @@ final class TodoRepositoryImpl: TodoRepository {
         return try response.toDomain()
     }
 
-    func fetchTodo(_ todoID: String) async throws -> Todo {
-        let response = try await todoService.fetchTodo(todoID: todoID)
+    func fetchTodo(_ todoId: String) async throws -> Todo {
+        let response = try await todoService.fetchTodo(todoId: todoId)
         return try response.toDomain()
     }
 
@@ -30,7 +30,7 @@ final class TodoRepositoryImpl: TodoRepository {
         try await todoService.upsertTodo(request: request)
     }
 
-    func deleteTodo(_ todoID: String) async throws {
-        try await todoService.deleteTodo(todoID: todoID)
+    func deleteTodo(_ todoId: String) async throws {
+        try await todoService.deleteTodo(todoId: todoId)
     }
 }

DevLog/Domain/Entity/PushNotification.swift

@@ -13,6 +13,6 @@ struct PushNotification {
     let body: String
     let receivedAt: Date
     var isRead: Bool
-    let todoID: String
+    let todoId: String
     let todoKind: TodoKind
 }

DevLog/Domain/Protocol/PushNotificationRepository.swift

@@ -6,6 +6,7 @@
 //
 
 import Foundation
+import Combine
 
 protocol PushNotificationRepository {
     func fetchPushNotificationEnabled() async throws -> Bool
@@ -15,6 +16,10 @@ protocol PushNotificationRepository {
         _ query: PushNotificationQuery,
         cursor: PushNotificationCursor?
     ) async throws -> PushNotificationPage
+    func observeNotifications(
+        _ query: PushNotificationQuery,
+        limit: Int
+    ) throws -> AnyPublisher<PushNotificationPage, Error>
     func deleteNotification(_ notificationID: String) async throws
-    func toggleNotificationRead(_ todoID: String) async throws
+    func toggleNotificationRead(_ todoId: String) async throws
 }

DevLog/Domain/Protocol/TodoRepository.swift

@@ -9,7 +9,7 @@ import Foundation
 
 protocol TodoRepository {
     func fetchTodos(_ query: TodoQuery, cursor: TodoCursor?) async throws -> TodoPage
-    func fetchTodo(_ todoID: String) async throws -> Todo
+    func fetchTodo(_ todoId: String) async throws -> Todo
     func upsertTodo(_ todo: Todo) async throws
-    func deleteTodo(_ todoID: String) async throws
+    func deleteTodo(_ todoId: String) async throws
 }

DevLog/Domain/UseCase/PushNotification/Fetch/FetchPushNotificationsUseCase.swift

@@ -5,9 +5,16 @@
 //  Created by 최윤진 on 2/10/26.
 //
 
+import Combine
+
 protocol FetchPushNotificationsUseCase {
     func execute(
         _ query: PushNotificationQuery,
         cursor: PushNotificationCursor?
     ) async throws -> PushNotificationPage
+
+    func observe(
+        _ query: PushNotificationQuery,
+        limit: Int
+    ) throws -> AnyPublisher<PushNotificationPage, Error>
 }

DevLog/Domain/UseCase/PushNotification/Fetch/FetchPushNotificationsUseCaseImpl.swift

@@ -5,6 +5,8 @@
 //  Created by 최윤진 on 2/10/26.
 //
 
+import Combine
+
 final class FetchPushNotificationsUseCaseImpl: FetchPushNotificationsUseCase {
     private let repository: PushNotificationRepository
 
@@ -18,4 +20,13 @@ final class FetchPushNotificationsUseCaseImpl: FetchPushNotificationsUseCase {
     ) async throws -> PushNotificationPage {
         try await repository.requestNotifications(query, cursor: cursor)
     }
+
+    func observe(
+        _ query: PushNotificationQuery,
+        limit: Int
+    ) throws -> AnyPublisher<PushNotificationPage, Error> {
+        try repository.observeNotifications(query, limit: limit)
+            .removeDuplicates()
+            .eraseToAnyPublisher()
+    }
 }

DevLog/Domain/UseCase/PushNotification/Read/TogglePushNotificationReadUseCase.swift

@@ -6,5 +6,5 @@
 //
 
 protocol TogglePushNotificationReadUseCase {
-    func execute(_ todoID: String) async throws
+    func execute(_ todoId: String) async throws
 }

DevLog/Domain/UseCase/PushNotification/Read/TogglePushNotificationReadUseCaseImpl.swift

@@ -12,7 +12,7 @@ final class TogglePushNotificationReadUseCaseImpl: TogglePushNotificationReadUse
         self.repository = repository
     }
 
-    func execute(_ todoID: String) async throws {
-        try await repository.toggleNotificationRead(todoID)
+    func execute(_ todoId: String) async throws {
+        try await repository.toggleNotificationRead(todoId)
     }
 }

DevLog/Domain/UseCase/Todo/Delete/DeleteTodoUseCase.swift

@@ -6,5 +6,5 @@
 //
 
 protocol DeleteTodoUseCase {
-    func execute(_ todoID: String) async throws
+    func execute(_ todoId: String) async throws
 }

DevLog/Domain/UseCase/Todo/Delete/DeleteTodoUseCaseImpl.swift

@@ -12,7 +12,7 @@ final class DeleteTodoUseCaseImpl: DeleteTodoUseCase {
         self.repository = repository
     }
 
-    func execute(_ todoID: String) async throws {
-        try await repository.deleteTodo(todoID)
+    func execute(_ todoId: String) async throws {
+        try await repository.deleteTodo(todoId)
     }
 }

DevLog/Domain/UseCase/Todo/Fetch/FetchTodoByIDUseCase.swift

@@ -5,6 +5,6 @@
 //  Created by opfic on 2/15/26.
 //
 
-protocol FetchTodoByIDUseCase {
-    func execute(_ todoID: String) async throws -> Todo
+protocol FetchTodoByIdUseCase {
+    func execute(_ todoId: String) async throws -> Todo
 }

DevLog/Domain/UseCase/Todo/Fetch/FetchTodoByIDUseCaseImpl.swift

@@ -5,14 +5,14 @@
 //  Created by opfic on 2/15/26.
 //
 
-final class FetchTodoByIDUseCaseImpl: FetchTodoByIDUseCase {
+final class FetchTodoByIdUseCaseImpl: FetchTodoByIdUseCase {
     private let repository: TodoRepository
 
     init(_ repository: TodoRepository) {
         self.repository = repository
     }
 
-    func execute(_ todoID: String) async throws -> Todo {
-        try await repository.fetchTodo(todoID)
+    func execute(_ todoId: String) async throws -> Todo {
+        try await repository.fetchTodo(todoId)
     }
 }