fix(detail): 콘텐츠/시리즈 상세 로딩 실패 시 자동 복귀를 적용한다

SodaLive/Sources/Content/Series/Detail/SeriesDetailView.swift

@@ -17,6 +17,8 @@ struct SeriesDetailView: View {
     
     @State private var isShowFollowNotifyDialog: Bool = false
     @State private var creatorId: Int = 0
+    @State private var didTriggerAutoBackOnLoadFailure: Bool = false
+    @State private var isViewVisible: Bool = false
     
     var body: some View {
         BaseView(isLoading: $viewModel.isLoading) {
@@ -38,11 +40,7 @@ struct SeriesDetailView: View {
                                     .resizable()
                                     .frame(width: 20, height: 20)
                                     .onTapGesture {
-                                        if presentationMode.wrappedValue.isPresented {
-                                            presentationMode.wrappedValue.dismiss()
-                                        } else {
-                                            AppState.shared.back()
-                                        }
+                                        goBack()
                                     }
                                 
                                 Spacer()
@@ -243,9 +241,51 @@ struct SeriesDetailView: View {
             .navigationBarBackButtonHidden()
         }
         .onAppear {
+            isViewVisible = true
+            didTriggerAutoBackOnLoadFailure = false
             viewModel.seriesId = seriesId
             viewModel.getSeriesDetail()
         }
+        .onDisappear {
+            isViewVisible = false
+        }
+        .onChange(of: viewModel.isShowPopup) { isShowing in
+            guard isShowing else { return }
+            guard viewModel.seriesDetail == nil else { return }
+            guard !didTriggerAutoBackOnLoadFailure else { return }
+
+            didTriggerAutoBackOnLoadFailure = true
+
+            DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
+                guard isViewVisible else { return }
+                goBack()
+            }
+        }
+        .popup(isPresented: $viewModel.isShowPopup, type: .toast, position: .top, autohideIn: 2) {
+            GeometryReader { geo in
+                HStack {
+                    Spacer()
+                    Text(viewModel.errorMessage)
+                        .padding(.vertical, 13.3)
+                        .frame(width: screenSize().width - 66.7, alignment: .center)
+                        .appFont(size: 12, weight: .medium)
+                        .background(Color(hex: "3bb9f1"))
+                        .foregroundColor(Color.white)
+                        .multilineTextAlignment(.center)
+                        .cornerRadius(20)
+                        .padding(.top, 66.7)
+                    Spacer()
+                }
+            }
+        }
+    }
+
+    private func goBack() {
+        if presentationMode.wrappedValue.isPresented {
+            presentationMode.wrappedValue.dismiss()
+        } else {
+            AppState.shared.back()
+        }
     }
 }