🛜 Improved isNetworkUnavailable logic

Author: joaodordio

swift-sdk/Internal/HealthMonitor.swift

@@ -94,7 +94,12 @@ class HealthMonitor {
         let currentDate = dateProvider.currentDate
         let apiCallRequest = apiCallRequest.addingCreatedAt(currentDate)
         if let urlRequest = apiCallRequest.convertToURLRequest(sentAt: currentDate) {
+            ITBInfo("Attempting to send failed-to-schedule request directly for path: '\(apiCallRequest.getPath())'")
             _ = RequestSender.sendRequest(urlRequest, usingSession: networkSession)
+        } else {
+            let endpoint = apiCallRequest.endpoint
+            let path = apiCallRequest.getPath()
+            ITBError("Failed to convert to URL request in health monitor - endpoint: '\(endpoint)', path: '\(path)'")
         }
         onError()
     }

swift-sdk/Internal/IterableAPICallTaskProcessor.swift

@@ -51,10 +51,38 @@ struct IterableAPICallTaskProcessor: IterableTaskProcessor {
     private let dateProvider: DateProviderProtocol
 
     private static func isNetworkUnavailable(sendRequestError: SendRequestError) -> Bool {
+        // Check for NSURLError codes that indicate network issues
+        if let nsError = sendRequestError.originalError as? NSError {
+            if nsError.domain == NSURLErrorDomain {
+                let networkErrorCodes: Set<Int> = [
+                    NSURLErrorNotConnectedToInternet, // -1009
+                    NSURLErrorNetworkConnectionLost,  // -1005
+                    NSURLErrorTimedOut,               // -1001
+                    NSURLErrorCannotConnectToHost,    // -1004
+                    NSURLErrorDNSLookupFailed,        // -1006
+                    NSURLErrorDataNotAllowed,         // -1020 (cellular data disabled)
+                    NSURLErrorInternationalRoamingOff // -1018
+                ]
+                if networkErrorCodes.contains(nsError.code) {
+                    ITBInfo("Network error detected: code=\(nsError.code), description=\(nsError.localizedDescription)")
+                    return true
+                }
+            }
+        }
+        
+        // Fallback to string check for other network-related errors
         if let originalError = sendRequestError.originalError {
-            return originalError.localizedDescription.lowercased().contains("offline")
-        } else {
-            return false
+            let description = originalError.localizedDescription.lowercased()
+            let isNetworkError = description.contains("offline") || 
+                                description.contains("network") ||
+                                description.contains("internet") ||
+                                description.contains("connection")
+            if isNetworkError {
+                ITBInfo("Network error detected via description: \(originalError.localizedDescription)")
+            }
+            return isNetworkError
         }
+        
+        return false
     }
 }