enhance errors

plugins/notification/ios/Sources/Notification.swift

@@ -5,19 +5,36 @@ enum NotificationError: LocalizedError {
   case contentNoId
   case contentNoTitle
   case contentNoBody
-  case triggerConstructionFailed
   case triggerRepeatIntervalTooShort
   case attachmentNoId
   case attachmentNoUrl
   case attachmentFileNotFound(path: String)
   case attachmentUnableToCreate(String)
+  case pastScheduledTime
+  case invalidDate(String)
 
   var errorDescription: String? {
     switch self {
+    case .contentNoId:
+      return "Missing notification identifier"
+    case .contentNoTitle:
+      return "Missing notification title"
+    case .contentNoBody:
+      return "Missing notification body"
+    case .triggerRepeatIntervalTooShort:
+      return "Schedule interval too short, must be a least 1 minute"
+    case .attachmentNoId:
+      return "Missing attachment identifier"
+    case .attachmentNoUrl:
+      return "Missing attachment URL"
     case .attachmentFileNotFound(let path):
       return "Unable to find file \(path) for attachment"
-    default:
-      return ""
+    case .attachmentUnableToCreate(let error):
+      return "Failed to create attachment: \(error)"
+    case .pastScheduledTime:
+      return "Scheduled time must be *after* current time"
+    case .invalidDate(let date):
+      return "Could not parse date \(date)"
     }
   }
 }
@@ -127,7 +144,7 @@ func makeAttachmentOptions(_ options: JSObject) -> JSObject {
   return opts
 }
 
-func handleScheduledNotification(_ invoke: Invoke, _ schedule: JSObject) throws
+func handleScheduledNotification(_ schedule: JSObject) throws
   -> UNNotificationTrigger?
 {
   let kind = schedule["kind"] as? String ?? ""
@@ -145,8 +162,7 @@ func handleScheduledNotification(_ invoke: Invoke, _ schedule: JSObject) throws
       let dateInfo = Calendar.current.dateComponents(in: TimeZone.current, from: at)
 
       if dateInfo.date! < Date() {
-        invoke.reject("Scheduled time must be *after* current time")
-        return nil
+        throw NotificationError.pastScheduledTime
       }
 
       let dateInterval = DateInterval(start: Date(), end: dateInfo.date!)
@@ -160,7 +176,7 @@ func handleScheduledNotification(_ invoke: Invoke, _ schedule: JSObject) throws
         timeInterval: dateInterval.duration, repeats: repeats)
 
     } else {
-      invoke.reject("could not parse `at` date \(date)")
+      throw NotificationError.invalidDate(date)
     }
   case "Interval":
     let dateComponents = getDateComponents(payload)

plugins/notification/ios/Sources/NotificationCategory.swift

@@ -1,7 +1,21 @@
 import Tauri
 import UserNotifications
 
-public func makeCategories(_ actionTypes: [JSObject]) {
+enum CategoryError: LocalizedError {
+  case noId
+  case noActionId
+
+  var errorDescription: String? {
+    switch self {
+    case .noId:
+      return "Action type `id` missing"
+    case .noActionId:
+      return "Action `id` missing"
+    }
+  }
+}
+
+public func makeCategories(_ actionTypes: [JSObject]) throws {
   var createdCategories = [UNNotificationCategory]()
 
   let generalCategory = UNNotificationCategory(
@@ -13,13 +27,12 @@ public func makeCategories(_ actionTypes: [JSObject]) {
   createdCategories.append(generalCategory)
   for type in actionTypes {
     guard let id = type["id"] as? String else {
-      Logger.error("Action type must have an id field")
-      continue
+      throw CategoryError.noId
     }
     let hiddenBodyPlaceholder = type["hiddenPreviewsBodyPlaceholder"] as? String ?? ""
     let actions = type["actions"] as? [JSObject] ?? []
 
-    let newActions = makeActions(actions)
+    let newActions = try makeActions(actions)
 
     // Create the custom actions for the TIMER_EXPIRED category.
     var newCategory: UNNotificationCategory?
@@ -38,13 +51,12 @@ public func makeCategories(_ actionTypes: [JSObject]) {
   center.setNotificationCategories(Set(createdCategories))
 }
 
-func makeActions(_ actions: [JSObject]) -> [UNNotificationAction] {
+func makeActions(_ actions: [JSObject]) throws -> [UNNotificationAction] {
   var createdActions = [UNNotificationAction]()
 
   for action in actions {
     guard let id = action["id"] as? String else {
-      Logger.error("Action must have an id field")
-      continue
+      throw CategoryError.noActionId
     }
     let title = action["title"] as? String ?? ""
     let input = action["input"] as? Bool ?? false

plugins/notification/ios/Sources/NotificationPlugin.swift

@@ -39,7 +39,7 @@ func showNotification(invoke: Invoke, notification: JSObject)
 
   do {
     if let schedule = notification["schedule"] as? JSObject {
-      try trigger = handleScheduledNotification(invoke, schedule)
+      try trigger = handleScheduledNotification(schedule)
     }
   } catch {
     throw ShowNotificationError.create(error)
@@ -154,11 +154,11 @@ class NotificationPlugin: Plugin {
     })
   }
 
-  @objc func registerActionTypes(_ invoke: Invoke) {
+  @objc func registerActionTypes(_ invoke: Invoke) throws {
     guard let types = invoke.getArray("types", JSObject.self) else {
       return
     }
-    makeCategories(types)
+    try makeCategories(types)
     invoke.resolve()
   }