fix: Prevent Users From Deleting All Vehicles

Basic-Car-Maintenance/Shared/Localizable.xcstrings

@@ -731,6 +731,22 @@
         }
       }
     },
+    "Can't Delete Last Vehicle" : {
+      "localizations" : {
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Невозможно удалить последний автомобиль"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Son Araç Silinemiyor"
+          }
+        }
+      }
+    },
     "Cancel" : {
       "localizations" : {
         "be" : {
@@ -3934,6 +3950,9 @@
         }
       }
     },
+    "The last vehicle can't be deleted. Please add a new vehicle before removing this one." : {
+      "comment" : "Alert message preventing users from deleting their last vehicle"
+    },
     "The title of the event" : {
       "comment" : "Maintenance event title text field label placeholder",
       "localizations" : {
@@ -4413,7 +4432,14 @@
       }
     },
     "Update Vehicle Info" : {
-
+      "localizations" : {
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Araç Bilgilerini Güncelle"
+          }
+        }
+      }
     },
     "Vehicle" : {
       "comment" : "Maintenance event vehicle picker header",

Basic-Car-Maintenance/Shared/Settings/Views/SettingsView.swift

@@ -19,6 +19,7 @@
     @State private var viewModel: SettingsViewModel
     @State private var isShowingAddVehicle = false
     @State private var showDeleteVehicleError = false
+    @State private var showDeleteVehicleAlert = false
     @State private var showAddVehicleError = false
     @State private var errorDetails: Error?
     @State private var copiedAppVersion: Bool = false
@@ -117,7 +118,11 @@
                             Button(role: .destructive) {
                                 Task {
                                     do {
-                                        try await viewModel.deleteVehicle(vehicle)
+                                        if viewModel.vehicles.count > 1 {
+                                            try await viewModel.deleteVehicle(vehicle)
+                                        } else {
+                                            showDeleteVehicleAlert = true
+                                        }
                                     } catch {
                                         errorDetails = error
                                         showDeleteVehicleError = true
@@ -141,7 +146,7 @@
                     }
 
                     Button {
                         // TODO: Show Paywall
                         // Show paywall if adding more than 1 vehicle, or show the `isShowingAddVehicle` view
                         isShowingAddVehicle = true
                     } label: {
@@ -240,6 +245,13 @@
                          comment: "Label to display error details.")
                 }
             }
+            .alert("Can't Delete Last Vehicle", isPresented: $showDeleteVehicleAlert) {
+                Button("OK", role: .cancel) {
+                    showDeleteVehicleAlert = false
+                }
+            } message: {
+                Text("The last vehicle can't be deleted. Please add a new vehicle before removing this one.", comment: "Alert message preventing users from deleting their last vehicle")
+            }
             .navigationTitle(Text("Settings", comment: "Label to display settings."))
             .task {
                 await viewModel.getVehicles()
@@ -248,7 +260,7 @@
         .onChange(of: scenePhase) { _, newScenePhase in
             guard case .active = newScenePhase else { return }
 
             // TODO: Show Paywall
 
             guard let action = actionService.action,
                   action == .addVehicle