refactor: 공통 로직을 헬퍼로 묶음

Author: opficdev

DevLog/Data/Repository/PushNotificationRepositoryImpl.swift

@@ -47,22 +47,7 @@ final class PushNotificationRepositoryImpl: PushNotificationRepository {
         async let preferencesTask = todoCategoryService.fetchPreferences()
 
         let (response, preferences) = try await (responseTask, preferencesTask)
-        let userTodoCategories: [UserTodoCategory] = preferences.compactMap { preference in
-            guard case .user(let userTodoCategory) = preference.category else {
-                return nil
-            }
-
-            return userTodoCategory
-        }
-
-        let responses = try response.items.map {
-            try resolve($0, userTodoCategories: userTodoCategories)
-        }
-
-        return try PushNotificationPageResponse(
-            items: responses,
-            nextCursor: response.nextCursor
-        ).toDomain()
+        return try resolvePage(from: response, with: preferences)
     }
 
     func observeNotifications(
@@ -88,23 +73,7 @@ final class PushNotificationRepositoryImpl: PushNotificationRepository {
                     Task {
                         do {
                             let preferences = try await self.todoCategoryService.fetchPreferences()
-                            let userTodoCategories: [UserTodoCategory] = preferences.compactMap { preference in
-                                guard case .user(let userTodoCategory) = preference.category else {
-                                    return nil
-                                }
-
-                                return userTodoCategory
-                            }
-
-                            let responses = try response.items.map {
-                                try self.resolve($0, userTodoCategories: userTodoCategories)
-                            }
-
-                            let page = try PushNotificationPageResponse(
-                                items: responses,
-                                nextCursor: response.nextCursor
-                            ).toDomain()
-
+                            let page = try self.resolvePage(from: response, with: preferences)
                             subject.send(page)
                         } catch {
                             subject.send(completion: .failure(error))
@@ -139,7 +108,30 @@ final class PushNotificationRepositoryImpl: PushNotificationRepository {
 }
 
 private extension PushNotificationRepositoryImpl {
-    func resolve(
+    func resolvePage(
+        from response: PushNotificationPageResponse,
+        with preferences: [TodoCategoryPreference]
+    ) throws -> PushNotificationPage {
+        let userTodoCategories: [UserTodoCategory] = preferences.compactMap { preference in
+            guard case .user(let userTodoCategory) = preference.category else {
+                return nil
+            }
+
+            return userTodoCategory
+        }
+
+        let responses = try response.items.map {
+            try resolve($0, userTodoCategories: userTodoCategories)
+        }
+
+        return try PushNotificationPageResponse(
+            items: responses,
+            nextCursor: response.nextCursor
+        ).toDomain()
+    }
+
+    // resolvePage() 메서드에서만 사용됨
+    private func resolve(
         _ response: PushNotificationResponse,
         userTodoCategories: [UserTodoCategory]
     ) throws -> PushNotificationResponse {