From b0d4c98735dee4972db3b3c46aafa4d9b65a2e36 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 14:16:09 +0900
Subject: [PATCH 01/12] =?UTF-8?q?[#31]=20=ED=8F=B4=EB=8D=94=20=EC=B6=94?=
 =?UTF-8?q?=EA=B0=80=20=ED=99=94=EB=A9=B4=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Feature/AddFolder/AddFolderView.swift     | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 Mark-In/Sources/Feature/AddFolder/AddFolderView.swift

diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
new file mode 100644
index 0000000..453fc6a
--- /dev/null
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
@@ -0,0 +1,65 @@
+//
+//  AddFolderView.swift
+//  Mark-In
+//
+//  Created by 이정동 on 5/8/25.
+//
+
+import SwiftUI
+
+import DesignSystem
+
+struct AddFolderView: View {
+  @Environment(\.dismiss) private var dismiss
+  @State private var title: String = ""
+  
+  var body: some View {
+    VStack(spacing: 0) {
+      Text("폴더를 추가:")
+        .frame(maxWidth: .infinity, alignment: .leading)
+      
+      TextField("", text: $title, prompt: Text("제목"))
+        .textFieldStyle(.roundedBorder)
+        .padding(.top, 14)
+      
+      HStack {
+        Button {
+          dismiss()
+        } label: {
+          Text("취소")
+            .padding(.vertical, 4)
+            .padding(.horizontal, 14)
+            .foregroundStyle(.markBlack)
+            .background(.markWhite)
+            .clipShape(RoundedRectangle(cornerRadius: 6))
+            .overlay {
+              RoundedRectangle(cornerRadius: 6)
+                .stroke(.markBlack10, lineWidth: 0.5)
+            }
+        }
+        
+        Button {
+          // TODO: 폴더 추가 로직
+          dismiss()
+        } label: {
+          Text("추가")
+            .padding(.vertical, 4)
+            .padding(.horizontal, 14)
+            .foregroundStyle(.markWhite)
+            .background(.markPoint)
+            .clipShape(RoundedRectangle(cornerRadius: 6))
+        }
+      }
+      .frame(maxWidth: .infinity, alignment: .trailing)
+      .padding(.top, 18)
+      .font(.pretendard(size: 14, weight: .medium))
+      .buttonStyle(.plain)
+    }
+    .padding(20)
+    .frame(width: 400)
+  }
+}
+
+#Preview {
+  AddFolderView()
+}

From 2352ed19d47332ad99058237a0748d30d9ce0e4d Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 14:16:31 +0900
Subject: [PATCH 02/12] =?UTF-8?q?[#31]=20=EB=A7=81=ED=81=AC=20=EC=B6=94?=
 =?UTF-8?q?=EA=B0=80=20=ED=99=94=EB=A9=B4=20=EB=94=94=EC=9E=90=EC=9D=B8=20?=
 =?UTF-8?q?=EC=83=89=EC=83=81=20=EC=A0=81=EC=9A=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Mark-In/Sources/Feature/AddLink/AddLinkView.swift | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Mark-In/Sources/Feature/AddLink/AddLinkView.swift b/Mark-In/Sources/Feature/AddLink/AddLinkView.swift
index 74634fd..121b29c 100644
--- a/Mark-In/Sources/Feature/AddLink/AddLinkView.swift
+++ b/Mark-In/Sources/Feature/AddLink/AddLinkView.swift
@@ -63,12 +63,12 @@ struct AddLinkView: View {
           Text("취소")
             .padding(.vertical, 4)
             .padding(.horizontal, 14)
-            .foregroundStyle(.black)
-            .background(.white)
+            .foregroundStyle(.markBlack)
+            .background(.markWhite)
             .clipShape(RoundedRectangle(cornerRadius: 6))
             .overlay {
               RoundedRectangle(cornerRadius: 6)
-                .stroke(.gray, lineWidth: 0.5)
+                .stroke(.markBlack10, lineWidth: 0.5)
             }
         }
 
@@ -79,8 +79,8 @@ struct AddLinkView: View {
           Text("추가")
             .padding(.vertical, 4)
             .padding(.horizontal, 14)
-            .foregroundStyle(.white)
-            .background(.blue)
+            .foregroundStyle(.markWhite)
+            .background(.markPoint)
             .clipShape(RoundedRectangle(cornerRadius: 6))
         }
       }

From fb0fc158fe9cd1904f19ebc0a3fabaa360237b8f Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 15:41:20 +0900
Subject: [PATCH 03/12] =?UTF-8?q?[#31]=20AddFolderViewModel=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../AddFolder/AddFolderViewModel.swift        | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift

diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
new file mode 100644
index 0000000..e46b063
--- /dev/null
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
@@ -0,0 +1,58 @@
+//
+//  AddFolderViewModel.swift
+//  Mark-In
+//
+//  Created by 이정동 on 5/8/25.
+//
+
+import Foundation
+
+@Observable @MainActor
+final class AddFolderViewModel: Reducer {
+  struct State {
+    var createdFolder: Folder?
+    var isSaving: Bool = false
+  }
+  
+  enum Action {
+    case addLinkButtonTapped(title: String)
+    case completeSave(Folder)
+  }
+  
+  private(set) var state: State = .init()
+  
+  func send(_ action: Action) {
+    let effect = reduce(state: &state, action: action)
+    handleEffect(effect)
+  }
+  
+  func reduce(state: inout State, action: Action) -> Effect<Action> {
+    switch action {
+    case .addLinkButtonTapped(let title):
+      state.isSaving = true
+      
+      // TODO: 실제 저장 과정 구현 예정
+      return .run {
+        try? await Task.sleep(nanoseconds: 3_000_000_000)
+        return .completeSave(.init(id: "", name: title, createdBy: .now))
+      }
+    case .completeSave(let folder):
+      state.isSaving = false
+      state.createdFolder = folder
+      return .none
+    }
+  }
+  
+  private func handleEffect(_ effect: Effect<Action>) {
+    switch effect {
+    case .none:
+      break
+    case .run(let action):
+      Task.detached { [weak self] in
+        let newAction = await action()
+        await self?.send(newAction)
+      }
+    }
+  }
+}
+

From fe8e1d2ae987c7cf30640e7db5d4e64bfab41aa8 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 15:43:35 +0900
Subject: [PATCH 04/12] =?UTF-8?q?[#31]=20AddFolderViewModel=20=EC=A0=81?=
 =?UTF-8?q?=EC=9A=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Feature/AddFolder/AddFolderView.swift     | 24 ++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
index 453fc6a..5090840 100644
--- a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
@@ -11,8 +11,11 @@ import DesignSystem
 
 struct AddFolderView: View {
   @Environment(\.dismiss) private var dismiss
+  @State private var viewModel = AddFolderViewModel()
   @State private var title: String = ""
   
+  let completion: (Folder) -> ()
+  
   var body: some View {
     VStack(spacing: 0) {
       Text("폴더를 추가:")
@@ -39,8 +42,7 @@ struct AddFolderView: View {
         }
         
         Button {
-          // TODO: 폴더 추가 로직
-          dismiss()
+          viewModel.send(.addLinkButtonTapped(title: title))
         } label: {
           Text("추가")
             .padding(.vertical, 4)
@@ -49,6 +51,7 @@ struct AddFolderView: View {
             .background(.markPoint)
             .clipShape(RoundedRectangle(cornerRadius: 6))
         }
+        .disabled(title.isEmpty)
       }
       .frame(maxWidth: .infinity, alignment: .trailing)
       .padding(.top, 18)
@@ -57,9 +60,24 @@ struct AddFolderView: View {
     }
     .padding(20)
     .frame(width: 400)
+    .overlay(content: {
+      if viewModel.state.isSaving {
+        ProgressView()
+          .frame(maxWidth: .infinity, maxHeight: .infinity)
+          .contentShape(Rectangle())
+          .background(.gray.opacity(0.5))
+      }
+    })
+    .onChange(of: viewModel.state.createdFolder) {
+      guard let folder = $1 else { return }
+      completion(folder)
+      dismiss()
+    }
   }
 }
 
 #Preview {
-  AddFolderView()
+  AddFolderView() {
+    print($0)
+  }
 }

From 8dfb7e53cecf88b1453bbda10c078c7c2f4ae132 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 15:50:00 +0900
Subject: [PATCH 05/12] =?UTF-8?q?[#31]=20TestFolder=20=EC=A0=9C=EA=B1=B0?=
 =?UTF-8?q?=20=EB=B0=8F=20Folder=20Entity=EC=97=90=20=ED=94=84=EB=A1=9C?=
 =?UTF-8?q?=ED=86=A0=EC=BD=9C=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Mark-In/Sources/Domain/Entities/Folder.swift     | 2 +-
 Mark-In/Sources/Feature/Common/SidebarTab.swift  | 2 +-
 Mark-In/Sources/Feature/Main/MainViewModel.swift | 6 +-----
 3 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/Mark-In/Sources/Domain/Entities/Folder.swift b/Mark-In/Sources/Domain/Entities/Folder.swift
index 9028315..56f8579 100644
--- a/Mark-In/Sources/Domain/Entities/Folder.swift
+++ b/Mark-In/Sources/Domain/Entities/Folder.swift
@@ -7,7 +7,7 @@
 
 import Foundation
 
-struct Folder {
+struct Folder: Equatable, Hashable {
   var id: String
   var name: String
   var createdBy: Date
diff --git a/Mark-In/Sources/Feature/Common/SidebarTab.swift b/Mark-In/Sources/Feature/Common/SidebarTab.swift
index 3aa2c60..33f5cdb 100644
--- a/Mark-In/Sources/Feature/Common/SidebarTab.swift
+++ b/Mark-In/Sources/Feature/Common/SidebarTab.swift
@@ -11,7 +11,7 @@ enum SidebarTab: Hashable {
   case total
   case pin
   case nonRead
-  case folder(TestFolder)
+  case folder(Folder)
   
   var title: String {
     switch self {
diff --git a/Mark-In/Sources/Feature/Main/MainViewModel.swift b/Mark-In/Sources/Feature/Main/MainViewModel.swift
index 6aaed15..04b6f0a 100644
--- a/Mark-In/Sources/Feature/Main/MainViewModel.swift
+++ b/Mark-In/Sources/Feature/Main/MainViewModel.swift
@@ -61,8 +61,4 @@ final class MainViewModel: Reducer {
   }
 }
 
-// TODO: 이후 제거 예정
-struct TestFolder: Hashable {
-  var id: String
-  var name: String
-}
+

From 35dd0247b51159781989e9a687438573923be4a1 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 15:53:43 +0900
Subject: [PATCH 06/12] =?UTF-8?q?[#31]=20=EC=82=AC=EC=9D=B4=EB=93=9C=20?=
 =?UTF-8?q?=EB=B0=94=20=EA=B8=B0=EB=B3=B8=20=ED=83=AD,=20=ED=8F=B4?=
 =?UTF-8?q?=EB=8D=94=20=ED=83=AD=20=ED=94=84=EB=A1=9C=ED=8D=BC=ED=8B=B0=20?=
 =?UTF-8?q?=EA=B5=AC=EB=B6=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Mark-In/Sources/Feature/Common/SidebarTab.swift  | 5 -----
 Mark-In/Sources/Feature/Main/MainViewModel.swift | 8 ++++++--
 Mark-In/Sources/Feature/Main/SideBar.swift       | 6 +++---
 3 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/Mark-In/Sources/Feature/Common/SidebarTab.swift b/Mark-In/Sources/Feature/Common/SidebarTab.swift
index 33f5cdb..38efb35 100644
--- a/Mark-In/Sources/Feature/Common/SidebarTab.swift
+++ b/Mark-In/Sources/Feature/Common/SidebarTab.swift
@@ -30,9 +30,4 @@ enum SidebarTab: Hashable {
     case .folder(_): "folder"
     }
   }
-  
-  var isFolder: Bool {
-    if case .folder(_) = self { true }
-    else { false }
-  }
 }
diff --git a/Mark-In/Sources/Feature/Main/MainViewModel.swift b/Mark-In/Sources/Feature/Main/MainViewModel.swift
index 04b6f0a..0a6fe7a 100644
--- a/Mark-In/Sources/Feature/Main/MainViewModel.swift
+++ b/Mark-In/Sources/Feature/Main/MainViewModel.swift
@@ -12,7 +12,8 @@ final class MainViewModel: Reducer {
   struct State {
     var isLoading: Bool = true
     
-    var tabs: [SidebarTab] = [.total, .pin, .nonRead]
+    var defaultTabs: [SidebarTab] = [.total, .pin, .nonRead]
+    var folderTabs: [SidebarTab] = []
     var selectedTab: SidebarTab? = .total
   }
   
@@ -38,7 +39,10 @@ final class MainViewModel: Reducer {
       }
       
     case .refresh:
-      (1...3).forEach { state.tabs.append(.folder(.init(id: "\($0)", name: "\($0)"))) }
+      // TODO: 실제 데이터 가져오는 작업 구현 필요
+      (1...3).forEach {
+        state.folderTabs.append(.folder(.init(id: "\($0)", name: "\($0)", createdBy: .now)))
+      }
       state.isLoading = false
       return .none
       
diff --git a/Mark-In/Sources/Feature/Main/SideBar.swift b/Mark-In/Sources/Feature/Main/SideBar.swift
index 8d8ba3e..9a5ca25 100644
--- a/Mark-In/Sources/Feature/Main/SideBar.swift
+++ b/Mark-In/Sources/Feature/Main/SideBar.swift
@@ -21,7 +21,7 @@ struct SideBar: View {
       ) {
         Section("기본") {
           ForEach(
-            viewModel.state.tabs.filter { !$0.isFolder },
+            viewModel.state.defaultTabs,
             id: \.self
           ) { tab in
             NavigationLink(value: tab) {
@@ -32,7 +32,7 @@ struct SideBar: View {
         
         Section("저장된 폴더") {
           ForEach(
-            viewModel.state.tabs.filter { $0.isFolder },
+            viewModel.state.folderTabs,
             id: \.self
           ) { tab in
             NavigationLink(value: tab) {
@@ -47,7 +47,7 @@ struct SideBar: View {
       
       Divider()
         .padding(.horizontal, 10)
-        .foregroundStyle(.blue)
+        .foregroundStyle(.markBlack20)
       
       Button(action: {
         // TODO: 구현 예정

From 8235c4c95da5edb80a0ed0fb67e39b7a26060ba2 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 15:55:12 +0900
Subject: [PATCH 07/12] =?UTF-8?q?[#31]=20=ED=8F=B4=EB=8D=94=20=EC=83=9D?=
 =?UTF-8?q?=EC=84=B1=20=ED=99=94=EB=A9=B4=20=EB=9D=84=EC=9A=B0=EA=B8=B0=20?=
 =?UTF-8?q?=EB=B0=8F=20=EC=83=9D=EC=84=B1=EB=90=9C=20=ED=8F=B4=EB=8D=94=20?=
 =?UTF-8?q?=ED=99=94=EB=A9=B4=EC=97=90=20=EC=A0=81=EC=9A=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Mark-In/Sources/Feature/Main/MainView.swift   | 22 ++++++++++++++----
 .../Sources/Feature/Main/MainViewModel.swift  | 23 ++++++++++++++++++-
 Mark-In/Sources/Feature/Main/SideBar.swift    |  2 +-
 3 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/Mark-In/Sources/Feature/Main/MainView.swift b/Mark-In/Sources/Feature/Main/MainView.swift
index a6afaab..aec1496 100644
--- a/Mark-In/Sources/Feature/Main/MainView.swift
+++ b/Mark-In/Sources/Feature/Main/MainView.swift
@@ -12,7 +12,6 @@ import DesignSystem
 struct MainView: View {
   @State private var viewModel = MainViewModel()
   @State private var searchText: String = ""
-  @State private var isAddMode: Bool = false
   
   var body: some View {
     ZStack {
@@ -43,8 +42,12 @@ struct MainView: View {
     .onAppear {
       viewModel.send(.onAppear)
     }
-    .sheet(isPresented: $isAddMode) {
-      AddLinkView()
+    .sheet(item: .init(
+      get: { viewModel.state.isPresentedSheet },
+      set: { viewModel.send(.presentSheet($0))
+      }
+    )) { type in
+      buildSheet(type)
     }
   }
   
@@ -79,7 +82,6 @@ struct MainView: View {
       Spacer()
       Button {
         // TODO: 구현 예정
-        isAddMode = true
       } label: {
         Image(systemName: "plus")
       }
@@ -99,6 +101,18 @@ struct MainView: View {
       }
     }
   }
+  
+  @ViewBuilder
+  private func buildSheet(_ type: MainViewModel.SheetType) -> some View {
+    switch type {
+    case .addLink:
+      AddLinkView()
+    case .addFolder:
+      AddFolderView() {
+        viewModel.send(.didCreateFolder($0))
+      }
+    }
+  }
 }
 
 #Preview {
diff --git a/Mark-In/Sources/Feature/Main/MainViewModel.swift b/Mark-In/Sources/Feature/Main/MainViewModel.swift
index 0a6fe7a..0d8d135 100644
--- a/Mark-In/Sources/Feature/Main/MainViewModel.swift
+++ b/Mark-In/Sources/Feature/Main/MainViewModel.swift
@@ -15,12 +15,18 @@ final class MainViewModel: Reducer {
     var defaultTabs: [SidebarTab] = [.total, .pin, .nonRead]
     var folderTabs: [SidebarTab] = []
     var selectedTab: SidebarTab? = .total
+    
+    var isPresentedSheet: SheetType?
   }
   
   enum Action {
     case onAppear
     case refresh
     case changeTab(SidebarTab?)
+    
+    case presentSheet(SheetType?)
+    
+    case didCreateFolder(Folder)
   }
   
   private(set) var state: State = .init()
@@ -49,6 +55,14 @@ final class MainViewModel: Reducer {
     case .changeTab(let tab):
       state.selectedTab = tab
       return .none
+      
+    case .presentSheet(let sheetType):
+      state.isPresentedSheet = sheetType
+      return .none
+      
+    case .didCreateFolder(let folder):
+      state.folderTabs.append(.folder(folder))
+      return .none
     }
   }
   
@@ -65,4 +79,11 @@ final class MainViewModel: Reducer {
   }
 }
 
-
+extension MainViewModel {
+  enum SheetType: Identifiable {
+    case addLink
+    case addFolder
+    
+    var id: String { String(describing: self) }
+  }
+}
diff --git a/Mark-In/Sources/Feature/Main/SideBar.swift b/Mark-In/Sources/Feature/Main/SideBar.swift
index 9a5ca25..ce2b051 100644
--- a/Mark-In/Sources/Feature/Main/SideBar.swift
+++ b/Mark-In/Sources/Feature/Main/SideBar.swift
@@ -50,7 +50,7 @@ struct SideBar: View {
         .foregroundStyle(.markBlack20)
       
       Button(action: {
-        // TODO: 구현 예정
+        viewModel.send(.presentSheet(.addFolder))
       }, label: {
         Label("새로운 폴더 만들기", systemImage: "plus")
           .lineLimit(1)

From 6977b54b2cb7f32d6973304e812ef30240aac390 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 16:13:37 +0900
Subject: [PATCH 08/12] =?UTF-8?q?[#31]=20GenerateFolderUseCase=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../GenerateFolderUseCaseImpl.swift           | 27 +++++++++++++++++++
 .../Interfaces/GenerateFolderUseCase.swift    | 12 +++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 Mark-In/Sources/Domain/UseCases/Implements/GenerateFolderUseCaseImpl.swift
 create mode 100644 Mark-In/Sources/Domain/UseCases/Interfaces/GenerateFolderUseCase.swift

diff --git a/Mark-In/Sources/Domain/UseCases/Implements/GenerateFolderUseCaseImpl.swift b/Mark-In/Sources/Domain/UseCases/Implements/GenerateFolderUseCaseImpl.swift
new file mode 100644
index 0000000..1299dfc
--- /dev/null
+++ b/Mark-In/Sources/Domain/UseCases/Implements/GenerateFolderUseCaseImpl.swift
@@ -0,0 +1,27 @@
+//
+//  GenerateFolderUseCaseImpl.swift
+//  Mark-In
+//
+//  Created by 이정동 on 5/8/25.
+//
+
+import Foundation
+
+struct GenerateFolderUseCaseImpl: GenerateFolderUseCase {
+  
+  private let folderRepository: FolderRepository
+  
+  init(folderRepository: FolderRepository) {
+    self.folderRepository = folderRepository
+  }
+  
+  func execute(name: String) async throws -> Folder {
+    let writeFolder = WriteFolder(name: name)
+    
+    // TODO: #29번 PR 머지 후 AuthManager를 통해 현재 로그인 유저 정보 가져옴
+    let user = "123"
+    
+    let newFolder = try await folderRepository.create(userID: user, folder: writeFolder)
+    return newFolder
+  }
+}
diff --git a/Mark-In/Sources/Domain/UseCases/Interfaces/GenerateFolderUseCase.swift b/Mark-In/Sources/Domain/UseCases/Interfaces/GenerateFolderUseCase.swift
new file mode 100644
index 0000000..50def6e
--- /dev/null
+++ b/Mark-In/Sources/Domain/UseCases/Interfaces/GenerateFolderUseCase.swift
@@ -0,0 +1,12 @@
+//
+//  GenerateFolderUseCase.swift
+//  Mark-In
+//
+//  Created by 이정동 on 5/8/25.
+//
+
+import Foundation
+
+protocol GenerateFolderUseCase {
+  func execute(name: String) async throws -> Folder
+}

From 77b9c95d564072e157c9015df777e0232362cce7 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 18:09:17 +0900
Subject: [PATCH 09/12] =?UTF-8?q?[#31]=20ViewModel=EC=97=90=20UseCase=20?=
 =?UTF-8?q?=EC=A0=81=EC=9A=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../AddFolder/AddFolderViewModel.swift        | 24 ++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
index e46b063..fdacd9b 100644
--- a/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
@@ -12,15 +12,24 @@ final class AddFolderViewModel: Reducer {
   struct State {
     var createdFolder: Folder?
     var isSaving: Bool = false
+    var isError: Bool = false
   }
   
   enum Action {
     case addLinkButtonTapped(title: String)
     case completeSave(Folder)
+    case occurError(Bool)
   }
   
+  private let generateFolderUseCase: GenerateFolderUseCase
+  
   private(set) var state: State = .init()
   
+  init() {
+    // TODO: DIContainer PR 머지 이후 DIContainer를 통해 의존성 주입
+    self.generateFolderUseCase = GenerateFolderUseCaseImpl(folderRepository: FolderRepositoryImpl())
+  }
+  
   func send(_ action: Action) {
     let effect = reduce(state: &state, action: action)
     handleEffect(effect)
@@ -31,15 +40,24 @@ final class AddFolderViewModel: Reducer {
     case .addLinkButtonTapped(let title):
       state.isSaving = true
       
-      // TODO: 실제 저장 과정 구현 예정
       return .run {
-        try? await Task.sleep(nanoseconds: 3_000_000_000)
-        return .completeSave(.init(id: "", name: title, createdBy: .now))
+        do {
+          let result = try await self.generateFolderUseCase.execute(name: title)
+          return .completeSave(result)
+        } catch {
+          return .occurError(true)
+        }
       }
+      
     case .completeSave(let folder):
       state.isSaving = false
       state.createdFolder = folder
       return .none
+      
+    case .occurError(let bool):
+      state.isSaving = false
+      state.isError = bool
+      return .none
     }
   }
   

From 2a3d67fb6a23a7fa2a48bdb3a7b45db61959e2c0 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 8 May 2025 18:09:43 +0900
Subject: [PATCH 10/12] =?UTF-8?q?[#31]=20View=EC=97=90=20=ED=8F=B4?=
 =?UTF-8?q?=EB=8D=94=20=EC=83=9D=EC=84=B1=20=EB=A1=9C=EC=A7=81=20=EC=A0=81?=
 =?UTF-8?q?=EC=9A=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Feature/AddFolder/AddFolderView.swift     | 34 ++++++++++++++-----
 1 file changed, 25 insertions(+), 9 deletions(-)

diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
index 5090840..d0968fc 100644
--- a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
@@ -14,6 +14,10 @@ struct AddFolderView: View {
   @State private var viewModel = AddFolderViewModel()
   @State private var title: String = ""
   
+  private var isSaving: Bool {
+    viewModel.state.isSaving
+  }
+  
   let completion: (Folder) -> ()
   
   var body: some View {
@@ -24,8 +28,15 @@ struct AddFolderView: View {
       TextField("", text: $title, prompt: Text("제목"))
         .textFieldStyle(.roundedBorder)
         .padding(.top, 14)
+        .disabled(isSaving)
       
       HStack {
+        if isSaving {
+          ProgressView()
+            .frame(width: 12, height: 12)
+            .scaleEffect(0.4, anchor: .center)
+        }
+        
         Button {
           dismiss()
         } label: {
@@ -40,6 +51,7 @@ struct AddFolderView: View {
                 .stroke(.markBlack10, lineWidth: 0.5)
             }
         }
+        .disabled(title.isEmpty || isSaving)
         
         Button {
           viewModel.send(.addLinkButtonTapped(title: title))
@@ -51,7 +63,7 @@ struct AddFolderView: View {
             .background(.markPoint)
             .clipShape(RoundedRectangle(cornerRadius: 6))
         }
-        .disabled(title.isEmpty)
+        .disabled(title.isEmpty || isSaving)
       }
       .frame(maxWidth: .infinity, alignment: .trailing)
       .padding(.top, 18)
@@ -60,19 +72,23 @@ struct AddFolderView: View {
     }
     .padding(20)
     .frame(width: 400)
-    .overlay(content: {
-      if viewModel.state.isSaving {
-        ProgressView()
-          .frame(maxWidth: .infinity, maxHeight: .infinity)
-          .contentShape(Rectangle())
-          .background(.gray.opacity(0.5))
-      }
-    })
     .onChange(of: viewModel.state.createdFolder) {
       guard let folder = $1 else { return }
       completion(folder)
       dismiss()
     }
+    .alert(
+      "폴더 생성에 실패했습니다.",
+      isPresented: .init(
+        get: { viewModel.state.isError },
+        set: { viewModel.send(.occurError($0)) }
+      )
+    ) {
+      Button(role: .cancel) {
+      } label: {
+        Text("확인")
+      }
+    }
   }
 }
 

From f5694d8d58cda635fe052357a2aabf855242a448 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 15 May 2025 13:31:53 +0900
Subject: [PATCH 11/12] =?UTF-8?q?[#31]=20isSaving=20->=20isLoading?=
 =?UTF-8?q?=EC=9C=BC=EB=A1=9C=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Mark-In/Sources/Feature/AddFolder/AddFolderView.swift     | 2 +-
 .../Sources/Feature/AddFolder/AddFolderViewModel.swift    | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
index d0968fc..72f7e77 100644
--- a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
@@ -15,7 +15,7 @@ struct AddFolderView: View {
   @State private var title: String = ""
   
   private var isSaving: Bool {
-    viewModel.state.isSaving
+    viewModel.state.isLoading
   }
   
   let completion: (Folder) -> ()
diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
index fdacd9b..b595c77 100644
--- a/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
@@ -11,7 +11,7 @@ import Foundation
 final class AddFolderViewModel: Reducer {
   struct State {
     var createdFolder: Folder?
-    var isSaving: Bool = false
+    var isLoading: Bool = false
     var isError: Bool = false
   }
   
@@ -38,7 +38,7 @@ final class AddFolderViewModel: Reducer {
   func reduce(state: inout State, action: Action) -> Effect<Action> {
     switch action {
     case .addLinkButtonTapped(let title):
-      state.isSaving = true
+      state.isLoading = true
       
       return .run {
         do {
@@ -50,12 +50,12 @@ final class AddFolderViewModel: Reducer {
       }
       
     case .completeSave(let folder):
-      state.isSaving = false
+      state.isLoading = false
       state.createdFolder = folder
       return .none
       
     case .occurError(let bool):
-      state.isSaving = false
+      state.isLoading = false
       state.isError = bool
       return .none
     }

From e75c9e6a7d247251986e886a7bd2a62672f9dda6 Mon Sep 17 00:00:00 2001
From: Jeong Dong <eejxdong99@gmail.com>
Date: Thu, 15 May 2025 13:44:52 +0900
Subject: [PATCH 12/12] =?UTF-8?q?[#31]=20Action=20case=20=EB=84=A4?=
 =?UTF-8?q?=EC=9D=B4=EB=B0=8D=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Feature/AddFolder/AddFolderView.swift        |  4 ++--
 .../Feature/AddFolder/AddFolderViewModel.swift   | 16 ++++++++--------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
index 72f7e77..fdc8f66 100644
--- a/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderView.swift
@@ -54,7 +54,7 @@ struct AddFolderView: View {
         .disabled(title.isEmpty || isSaving)
         
         Button {
-          viewModel.send(.addLinkButtonTapped(title: title))
+          viewModel.send(.didTapAddLinkButton(title: title))
         } label: {
           Text("추가")
             .padding(.vertical, 4)
@@ -81,7 +81,7 @@ struct AddFolderView: View {
       "폴더 생성에 실패했습니다.",
       isPresented: .init(
         get: { viewModel.state.isError },
-        set: { viewModel.send(.occurError($0)) }
+        set: { viewModel.send(.updateErrorState($0)) }
       )
     ) {
       Button(role: .cancel) {
diff --git a/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
index b595c77..4908601 100644
--- a/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
+++ b/Mark-In/Sources/Feature/AddFolder/AddFolderViewModel.swift
@@ -16,9 +16,9 @@ final class AddFolderViewModel: Reducer {
   }
   
   enum Action {
-    case addLinkButtonTapped(title: String)
-    case completeSave(Folder)
-    case occurError(Bool)
+    case didTapAddLinkButton(title: String)
+    case didCompleteSave(Folder)
+    case updateErrorState(Bool)
   }
   
   private let generateFolderUseCase: GenerateFolderUseCase
@@ -37,24 +37,24 @@ final class AddFolderViewModel: Reducer {
   
   func reduce(state: inout State, action: Action) -> Effect<Action> {
     switch action {
-    case .addLinkButtonTapped(let title):
+    case .didTapAddLinkButton(let title):
       state.isLoading = true
       
       return .run {
         do {
           let result = try await self.generateFolderUseCase.execute(name: title)
-          return .completeSave(result)
+          return .didCompleteSave(result)
         } catch {
-          return .occurError(true)
+          return .updateErrorState(true)
         }
       }
       
-    case .completeSave(let folder):
+    case .didCompleteSave(let folder):
       state.isLoading = false
       state.createdFolder = folder
       return .none
       
-    case .occurError(let bool):
+    case .updateErrorState(let bool):
       state.isLoading = false
       state.isError = bool
       return .none