Add Additional Log throughout the sdk

Author: BrandonStalnaker

ios/RNMParticle/RNMPRokt.mm

@@ -184,6 +184,9 @@ - (void)selectPlacements:(NSString *)identifer
             [strongSelf subscribeViewEvents:identifer];
         }
 
+        id mpInstance = [MParticle sharedInstance];
+        id roktKit = mpInstance ? [mpInstance rokt] : nil;
+        _rokt_log(@"[mParticle-Rokt] MParticle sharedInstance %@, rokt kit %@", mpInstance ? @"non-nil" : @"nil", roktKit ? @"non-nil" : @"nil");
         _rokt_log(@"[mParticle-Rokt] calling mParticle Core selectPlacements for: %@", identifer);
         [[[MParticle sharedInstance] rokt] selectPlacements:identifer
                                                  attributes:finalAttributes

ios/RNMParticle/RoktEventManager.m

@@ -1,5 +1,23 @@
 #import "RoktEventManager.h"
 #import <mParticle_Apple_SDK/mParticle_Apple_SDK-Swift.h>
+#import <os/log.h>
+
+static os_log_t _rokt_events_os_log(void) {
+  static os_log_t log;
+  static dispatch_once_t once;
+  dispatch_once(&once, ^{
+    log = os_log_create("com.mparticle.react-native", "rokt-events");
+  });
+  return log;
+}
+
+static void _rokt_events_log(NSString *format, ...) {
+  va_list args;
+  va_start(args, format);
+  NSString *msg = [[NSString alloc] initWithFormat:format arguments:args];
+  va_end(args);
+  os_log_with_type(_rokt_events_os_log(), OS_LOG_TYPE_INFO, "%{public}s", [msg UTF8String]);
+}
 
 @implementation RoktEventManager
 {
@@ -13,17 +31,20 @@ + (id)allocWithZone:(NSZone *)zone {
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
         sharedInstance = [super allocWithZone:zone];
+        _rokt_events_log(@"[mParticle-Rokt] RoktEventManager module alloc");
     });
     return sharedInstance;
 }
 
 // Will be called when this module's first listener is added.
 -(void)startObserving {
+    _rokt_events_log(@"[mParticle-Rokt] RoktEventManager startObserving (JS listener added)");
     hasListeners = YES;
 }
 
 // Will be called when this module's last listener is removed, or on dealloc.
 -(void)stopObserving {
+    _rokt_events_log(@"[mParticle-Rokt] RoktEventManager stopObserving (no JS listeners)");
     hasListeners = NO;
 }
 
@@ -51,13 +72,16 @@ - (void)onFirstPositiveResponse
 
 - (void)onRoktCallbackReceived:(NSString*)eventValue
 {
+    _rokt_events_log(@"[mParticle-Rokt] RoktEventManager onRoktCallbackReceived: %@", eventValue ?: @"(nil)");
     if (hasListeners) {
         [self sendEventWithName:@"RoktCallback" body:@{@"callbackValue": eventValue}];
     }
 }
 
 - (void)onRoktEvents:(MPRoktEvent * _Nonnull)event viewName:(NSString * _Nullable)viewName
 {
+     NSString *eventClass = event ? NSStringFromClass([event class]) : @"nil";
+     _rokt_events_log(@"[mParticle-Rokt] RoktEventManager onRoktEvents: %@ viewName: %@", eventClass, viewName ?: @"(nil)");
      if (hasListeners) {
          NSString *placementId;
          NSString *eventName = @"";