refactor: Port MPILogger to Swift

mParticle-Apple-SDK.xcodeproj/project.pbxproj

@@ -517,6 +517,8 @@
 		D3CEDABF2C9C5B5B001B32DF /* MPGDPRConsent.swift in Sources */ = {isa = PBXBuildFile; fileRef = D3CEDABD2C9C5B5B001B32DF /* MPGDPRConsent.swift */; };
 		D3CEDAC02C9C5B5B001B32DF /* MPGDPRConsent.swift in Sources */ = {isa = PBXBuildFile; fileRef = D3CEDABD2C9C5B5B001B32DF /* MPGDPRConsent.swift */; };
 		D3CEDAC12C9C5B5B001B32DF /* MPGDPRConsent.swift in Sources */ = {isa = PBXBuildFile; fileRef = D3CEDABD2C9C5B5B001B32DF /* MPGDPRConsent.swift */; };
+		D3CEDAC82CA2F214001B32DF /* MPLogger.swift in Sources */ = {isa = PBXBuildFile; fileRef = D3CEDAC72CA2F214001B32DF /* MPLogger.swift */; };
+		D3CEDAC92CA2F214001B32DF /* MPLogger.swift in Sources */ = {isa = PBXBuildFile; fileRef = D3CEDAC72CA2F214001B32DF /* MPLogger.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -807,6 +809,7 @@
 		D3BA75152B614E3D008C3C65 /* PrivacyInfo.xcprivacy */ = {isa = PBXFileReference; lastKnownFileType = text.xml; path = PrivacyInfo.xcprivacy; sourceTree = "<group>"; };
 		D3CEDAB82C9B14BF001B32DF /* MPCCPAConsent.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MPCCPAConsent.swift; sourceTree = "<group>"; };
 		D3CEDABD2C9C5B5B001B32DF /* MPGDPRConsent.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MPGDPRConsent.swift; sourceTree = "<group>"; };
+		D3CEDAC72CA2F214001B32DF /* MPLogger.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MPLogger.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -1117,6 +1120,7 @@
 			isa = PBXGroup;
 			children = (
 				53A79B4629CDFB1F00E7489F /* MPILogger.h */,
+				D3CEDAC72CA2F214001B32DF /* MPLogger.swift */,
 			);
 			path = Logger;
 			sourceTree = "<group>";
@@ -1805,6 +1809,7 @@
 				53B33E8A2A4606CD00CC8A19 /* MPSideloadedKit.swift in Sources */,
 				53A79B9629CDFB2000E7489F /* MPSession.m in Sources */,
 				53A79B9729CDFB2000E7489F /* MPIntegrationAttributes.m in Sources */,
+				D3CEDAC82CA2F214001B32DF /* MPLogger.swift in Sources */,
 				53A79B6A29CDFB2000E7489F /* MPAliasRequest.m in Sources */,
 				53A79B6829CDFB2000E7489F /* MParticleUser.m in Sources */,
 				53B28FB22C938C26009072FC /* MPLocationManager.swift in Sources */,
@@ -1972,6 +1977,7 @@
 				53B33E8B2A4606CD00CC8A19 /* MPSideloadedKit.swift in Sources */,
 				53A79D9A29CE23F700E7489F /* MPSession.m in Sources */,
 				53A79D9B29CE23F700E7489F /* MPIntegrationAttributes.m in Sources */,
+				D3CEDAC92CA2F214001B32DF /* MPLogger.swift in Sources */,
 				53A79D9C29CE23F700E7489F /* MPAliasRequest.m in Sources */,
 				53A79D9D29CE23F700E7489F /* MParticleUser.m in Sources */,
 				53B28FB32C938C26009072FC /* MPLocationManager.swift in Sources */,

mParticle-Apple-SDK/Include/mParticle.h

@@ -514,7 +514,7 @@ Defaults to false. Prevents the eventsHost above from overwriting the alias endp
  N.B.: The format/wording of mParticle log messages may change between releases--please avoid using this programatically to detect SDK behavior unless absolutely necessary, and then only as a temporary workaround.
  @see MParticleOptions
  */
-@property (nonatomic, copy, readwrite) void (^customLogger)(NSString *message);
+@property (nonatomic, copy, nullable, readwrite) void (^customLogger)(NSString *message);
 
 /**
  Gets/Sets the opt-in/opt-out status for the application. Set it to YES to opt-out of event tracking. Set it to NO to opt-in of event tracking.

mParticle-Apple-SDK/Logger/MPLogger.swift

@@ -0,0 +1,38 @@
+//
+//  MPLogger.swift
+//  mParticle-Apple-SDK
+//
+//  Created by Brandon Stalnaker on 9/22/24.
+//
+
+import Foundation
+
+public struct MPLogger {
+
+    private static func MPLogger(loggerLevel: MPILogLevel, format: String, arguments: any CVarArg...) {
+        if (MParticle.sharedInstance().logLevel.rawValue >= loggerLevel.rawValue && loggerLevel != .none) {
+            let msg = String.localizedStringWithFormat(format, arguments)
+            if let customLogger = MParticle.sharedInstance().customLogger {
+                customLogger(msg)
+            } else {
+                NSLog("%@", msg)
+            }
+        }
+    }
+
+    public static func MPLogError(format: String, arguments: any CVarArg...) {
+        MPLogger(loggerLevel: .error, format: format, arguments: arguments)
+    }
+
+    public static func MPLogWarning(format: String, arguments: any CVarArg...) {
+        MPLogger(loggerLevel: .warning, format: format, arguments: arguments)
+    }
+
+    public static func MPLogDebug(format: String, arguments: any CVarArg...) {
+        MPLogger(loggerLevel: .debug, format: format, arguments: arguments)
+    }
+
+    public static func MPLogVerbose(format: String, arguments: any CVarArg...) {
+        MPLogger(loggerLevel: .verbose, format: format, arguments: arguments)
+    }
+}

mParticle-Apple-SDK/Utils/MPIHasher.swift

@@ -25,6 +25,7 @@ import Foundation
 
         let lowercaseStringToHash = stringToHash.lowercased()
         guard let dataToHash = lowercaseStringToHash.data(using: .utf8) else {
+            MPLogger.MPLogWarning(format: "Hash String Failed. Could not encode string as data")
             return ""
         }
 
@@ -38,6 +39,7 @@ import Foundation
 
     @objc public class func hashStringUTF16(_ stringToHash: String) -> String {
         guard let data = stringToHash.data(using: .utf16LittleEndian) else {
+            MPLogger.MPLogWarning(format: "Hash String UTF16 Failed. Could not encode string as data")
             return ""
         }
         let hash = hashFNV1a(data)