From 3043d106d3478c4dabb8729a2ba129e7171f5ba5 Mon Sep 17 00:00:00 2001
From: JunBook <bene9439@JunBookui-MacBookAir.local>
Date: Mon, 30 Sep 2024 17:26:11 +0900
Subject: [PATCH] Fix issue #3417: Add unique ID for independent timer
 operation

---
 .../02-AddingSideEffects/01-02-03-code-0005.swift         | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Sources/ComposableArchitecture/Documentation.docc/Tutorials/MeetTheComposableArchitecture/01-Essentials/02-AddingSideEffects/01-02-03-code-0005.swift b/Sources/ComposableArchitecture/Documentation.docc/Tutorials/MeetTheComposableArchitecture/01-Essentials/02-AddingSideEffects/01-02-03-code-0005.swift
index 0b5ef8a21e8d..3ef74df40a8d 100644
--- a/Sources/ComposableArchitecture/Documentation.docc/Tutorials/MeetTheComposableArchitecture/01-Essentials/02-AddingSideEffects/01-02-03-code-0005.swift
+++ b/Sources/ComposableArchitecture/Documentation.docc/Tutorials/MeetTheComposableArchitecture/01-Essentials/02-AddingSideEffects/01-02-03-code-0005.swift
@@ -8,6 +8,7 @@ struct CounterFeature {
     var fact: String?
     var isLoading = false
     var isTimerRunning = false
+    let timerID = UUID()
   }
   
   enum Action {
@@ -19,7 +20,7 @@ struct CounterFeature {
     case toggleTimerButtonTapped
   }
   
-  enum CancelID { case timer }
+  enum CancelID: Hashable { case timer(UUID) }
   
   var body: some ReducerOf<Self> {
     Reduce { state, action in
@@ -56,6 +57,7 @@ struct CounterFeature {
         
       case .toggleTimerButtonTapped:
         state.isTimerRunning.toggle()
+        let cancelID = CancelID.timer(state.timerID)
         if state.isTimerRunning {
           return .run { send in
             while true {
@@ -63,9 +65,9 @@ struct CounterFeature {
               await send(.timerTick)
             }
           }
-          .cancellable(id: CancelID.timer)
+          .cancellable(id: cancelID)
         } else {
-          return .cancel(id: CancelID.timer)
+          return .cancel(id: cancelID)
         }
       }
     }