[Feat] Error 핸들링/Alert 추가

ComfortableMove/ComfortableMove/Core/Manager/AlertManager.swift

@@ -0,0 +1,106 @@
+//
+//  AlertManager.swift
+//  ComfortableMove
+//
+//  Created by Claude on 11/15/25.
+//
+
+import Foundation
+import SwiftUI
+
+// MARK: - Alert Types
+enum AlertType: Identifiable {
+    case outOfSeoul
+    case apiError
+    case bluetoothUnsupported
+    case bluetoothUnauthorized
+    case locationUnauthorized
+
+    var id: String {
+        switch self {
+        case .outOfSeoul: return "outOfSeoul"
+        case .apiError: return "apiError"
+        case .bluetoothUnsupported: return "bluetoothUnsupported"
+        case .bluetoothUnauthorized: return "bluetoothUnauthorized"
+        case .locationUnauthorized: return "locationUnauthorized"
+        }
+    }
+
+    var priority: Int {
+        switch self {
+        case .locationUnauthorized: return 3
+        case .bluetoothUnsupported, .bluetoothUnauthorized: return 2
+        case .outOfSeoul: return 1
+        case .apiError: return 0
+        }
+    }
+
+    var title: String {
+        switch self {
+        case .outOfSeoul:
+            return "서울 외 지역"
+        case .apiError:
+            return "서버 오류"
+        case .bluetoothUnsupported:
+            return "블루투스 미지원"
+        case .bluetoothUnauthorized:
+            return "블루투스 권한 필요"
+        case .locationUnauthorized:
+            return "위치 권한 필요"
+        }
+    }
+
+    var message: String {
+        switch self {
+        case .outOfSeoul:
+            return "현재 서울 지역에서만 서비스를 이용할 수 있습니다."
+        case .apiError:
+            return "서버에 문제가 발생했습니다.\n잠시 후 다시 시도해주세요."
+        case .bluetoothUnsupported:
+            return "이 기기는 블루투스를 지원하지 않습니다.\n배려석 알림 기능을 사용할 수 없습니다."
+        case .bluetoothUnauthorized:
+            return "블루투스 권한이 필요합니다.\n설정에서 블루투스 권한을 허용해주세요."
+        case .locationUnauthorized:
+            return "위치 권한이 필요합니다.\n설정에서 위치 권한을 허용해주세요."
+        }
+    }
+
+    var shouldBlockApp: Bool {
+        switch self {
+        case .bluetoothUnsupported, .bluetoothUnauthorized, .locationUnauthorized:
+            return true
+        case .outOfSeoul, .apiError:
+            return false
+        }
+    }
+
+    var primaryButtonText: String {
+        shouldBlockApp ? "설정으로 이동" : "확인"
+    }
+}
+
+// MARK: - Alert Manager
+class AlertManager: ObservableObject {
+    @Published var currentAlert: AlertType?
+
+    func showAlert(_ type: AlertType) {
+        // 현재 alert가 없거나, 새로운 alert의 우선순위가 더 높은 경우에만 표시
+        if let current = currentAlert {
+            if type.priority > current.priority {
+                currentAlert = type
+            }
+        } else {
+            currentAlert = type
+        }
+    }
+
+    func dismissAlert() {
+        currentAlert = nil
+    }
+
+    func openSettings() {
+        if let url = URL(string: UIApplication.openSettingsURLString) {
+            UIApplication.shared.open(url)
+        }
+    }
+}

ComfortableMove/ComfortableMove/Core/Manager/Bluetooth/BluetoothManager.swift

@@ -18,6 +18,9 @@ class BluetoothManager: NSObject, ObservableObject {
     private var onTransmitComplete: ((Bool) -> Void)?
     private var targetBusNumber: String?
 
+    var onBluetoothUnsupported: (() -> Void)?
+    var onBluetoothUnauthorized: (() -> Void)?
+
     override init() {
         super.init()
         centralManager = CBCentralManager(delegate: self, queue: nil)
@@ -74,8 +77,10 @@ extension BluetoothManager: CBCentralManagerDelegate {
             Logger.log(message: "블루투스가 켜져있습니다.")
         case .unauthorized:
             Logger.log(message: "블루투스 권한이 없습니다.")
+            onBluetoothUnauthorized?()
         case .unsupported:
             Logger.log(message: "이 기기는 블루투스를 지원하지 않습니다.")
+            onBluetoothUnsupported?()
         default:
             break
         }

ComfortableMove/ComfortableMove/Core/Manager/BusArrivalService.swift

@@ -48,7 +48,7 @@ class BusArrivalService {
 
         guard result.msgHeader.isSuccess else {
             Logger.log(message: "❌ [API] API Error: \(result.msgHeader.headerMsg)")
-            return []
+            throw NSError(domain: "APIError", code: -1, userInfo: [NSLocalizedDescriptionKey: result.msgHeader.headerMsg])
         }
 
         let items = result.msgBody.itemList ?? []

ComfortableMove/ComfortableMove/Core/Manager/BusStopService.swift

@@ -49,9 +49,15 @@ class BusStopService {
         Logger.log(message: "🚏 [API] Header Message: \(result.msgHeader.headerMsg)")
         Logger.log(message: "🚏 [API] Item Count: \(result.msgHeader.itemCount)")
 
+        // 서울 외 지역 체크
+        if result.msgHeader.isOutOfSeoul {
+            Logger.log(message: "❌ [API] Out of Seoul: \(result.msgHeader.headerMsg)")
+            throw NSError(domain: "OutOfSeoul", code: 4, userInfo: [NSLocalizedDescriptionKey: "서울 외 지역"])
+        }
+
         guard result.msgHeader.isSuccess else {
             Logger.log(message: "❌ [API] API Error: \(result.msgHeader.headerMsg)")
-            return []
+            throw NSError(domain: "APIError", code: -1, userInfo: [NSLocalizedDescriptionKey: result.msgHeader.headerMsg])
         }
 
         let stations = result.msgBody.itemList ?? []

ComfortableMove/ComfortableMove/Core/Manager/LocationManager.swift

@@ -39,9 +39,13 @@ class LocationManager: NSObject, ObservableObject, CLLocationManagerDelegate {
     }
 
     func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) {
-        if manager.authorizationStatus == .authorizedWhenInUse ||
-           manager.authorizationStatus == .authorizedAlways {
+        switch manager.authorizationStatus {
+        case .authorizedWhenInUse, .authorizedAlways:
             manager.startUpdatingLocation()
+        case .denied, .restricted:
+            showPermissionAlert = true
+        default:
+            break
         }
     }
 

ComfortableMove/ComfortableMove/Core/Model/BusArrivalResponse.swift

@@ -108,6 +108,10 @@ struct MsgHeader: Codable {
     var isSuccess: Bool {
         return headerCd == "0"
     }
+
+    var isOutOfSeoul: Bool {
+        return headerCd == "4" && headerMsg == "결과가 없습니다."
+    }
 }
 
 // MARK: - 메시지 본문

ComfortableMove/ComfortableMove/Core/Presentation/Help/InfoView.swift

@@ -8,9 +8,22 @@
 import SwiftUI
 
 struct InfoView: View {
-    @Environment(\.dismiss) private var dismiss
     private let appVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "1.0.0"
-
+
+    @Environment(\.presentationMode) var presentationMode: Binding<PresentationMode>
+
+    var backButton : some View {  // <-- 👀 커스텀 버튼
+        Button{
+            self.presentationMode.wrappedValue.dismiss()
+        } label: {
+            HStack {
+                Image(systemName: "chevron.left") // 화살표 Image
+                    .aspectRatio(contentMode: .fit)
+                    .foregroundStyle(Color.white)
+            }
+        }
+    }
+
     var body: some View {
         VStack(spacing: 0) {
             Spacer()
@@ -21,7 +34,7 @@ struct InfoView: View {
                 .scaledToFit()
                 .frame(width: 100, height: 170)
                 .padding(.bottom, 100)
-
+            
             // 하단 리스트 영역
             VStack(spacing: 0) {
                 // 버전 정보
@@ -37,10 +50,10 @@ struct InfoView: View {
                 .padding(.horizontal, 20)
                 .padding(.vertical, 16)
                 .background(Color.white)
-
+                
                 Divider()
                     .padding(.leading, 20)
-
+                
                 // 앱 문의
                 Button(action: {
                     if let url = URL(string: "https://forms.gle/rnSD44sUEuy1nLaH6") {
@@ -60,10 +73,10 @@ struct InfoView: View {
                     .padding(.vertical, 16)
                     .background(Color.white)
                 }
-
+                
                 Divider()
                     .padding(.leading, 20)
-
+                
                 // 개인정보 처리 방침 및 이용약관
                 Button(action: {
                     if let url = URL(string: "https://important-hisser-903.notion.site/10-22-ver-29a65f12c44480b6b591e726c5c80f89?source=copy_link") {
@@ -87,12 +100,13 @@ struct InfoView: View {
             .background(Color.white)
             .cornerRadius(20)
             .padding(.horizontal, 20)
-
+            
             Spacer()
         }
         .background(Color("BFPrimaryColor"))
         .navigationBarTitleDisplayMode(.inline)
-        .navigationBarBackButtonHidden(false)
+        .navigationBarBackButtonHidden(true)
+        .navigationBarItems(leading: backButton)
         .navigationTitle("앱정보")
         .toolbarBackground(Color("BFPrimaryColor"), for: .navigationBar)
         .toolbarBackground(.visible, for: .navigationBar)