feat: Port ga4 commits to google analytics firebase (#22)

Author: peterjenkins

Package.swift

@@ -0,0 +1,33 @@
+// swift-tools-version:5.3
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "mParticle-Google-Analytics-Firebase",
+    platforms: [ .iOS(.v11) ],
+    products: [
+        .library(
+            name: "mParticle-Google-Analytics-Firebase",
+            targets: ["mParticle-Google-Analytics-Firebase"]),
+    ],
+    dependencies: [
+      .package(name: "mParticle-Apple-SDK",
+               url: "https://github.com/mParticle/mparticle-apple-sdk",
+               .upToNextMajor(from: "8.0.0")),
+      .package(name: "Firebase",
+               url: "https://github.com/firebase/firebase-ios-sdk.git",
+               .upToNextMajor(from: "9.0.0")),
+    ],
+    targets: [
+        .target(
+            name: "mParticle-Google-Analytics-Firebase",
+            dependencies: [
+              .byName(name: "mParticle-Apple-SDK"),
+              .product(name: "FirebaseAnalytics", package: "Firebase"),
+            ],
+            path: "mParticle-Google-Analytics-Firebase",
+            exclude: ["Info.plist"],
+            publicHeadersPath: "."),
+    ]
+)

mParticle-Google-Analytics-Firebase.xcodeproj/project.pbxproj

@@ -20,22 +20,27 @@
                ReferencedContainer = "container:mParticle-Google-Analytics-Firebase.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "NO"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "D3C7855121FF6CEB00FE47D2"
+               BuildableName = "mParticle-Google-Analytics-FirebaseTests.xctest"
+               BlueprintName = "mParticle-Google-Analytics-FirebaseTests"
+               ReferencedContainer = "container:mParticle-Google-Analytics-Firebase.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
    <TestAction
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "D316BD31217F670500688E56"
-            BuildableName = "mParticle_Google_Analytics_Firebase.framework"
-            BlueprintName = "mParticle-Google-Analytics-Firebase"
-            ReferencedContainer = "container:mParticle-Google-Analytics-Firebase.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
       <Testables>
          <TestableReference
             skipped = "NO">
@@ -59,15 +64,6 @@
       debugDocumentVersioning = "YES"
       debugServiceExtension = "internal"
       allowLocationSimulation = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "D316BD31217F670500688E56"
-            BuildableName = "mParticle_Google_Analytics_Firebase.framework"
-            BlueprintName = "mParticle-Google-Analytics-Firebase"
-            ReferencedContainer = "container:mParticle-Google-Analytics-Firebase.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Release"

mParticle-Google-Analytics-Firebase.xcodeproj/xcshareddata/xcschemes/mParticle-Google-Analytics-Firebase.xcscheme

@@ -4,17 +4,6 @@
 #else
 #import "mParticle.h"
 #endif
-#if SWIFT_PACKAGE
-    @import Firebase;
-#else
-    #if __has_include(<FirebaseCore/FirebaseCore.h>)
-        #import <FirebaseCore/FirebaseCore.h>
-        #import <FirebaseAnalytics/FIRAnalytics.h>
-    #else
-        #import "FirebaseCore/FirebaseCore.h"
-        #import "FirebaseAnalytics/FIRAnalytics.h"
-    #endif
-#endif
 
 @interface MPKitFirebaseAnalytics : NSObject <MPKitProtocol>
 
@@ -29,4 +18,9 @@ static NSString * _Nonnull const kMPFIRGoogleAppIDKey = @"firebaseAppId";
 static NSString * _Nonnull const kMPFIRSenderIDKey = @"googleProjectNumber";
 static NSString * _Nonnull const kMPFIRAPIKey = @"firebaseAPIKey";
 static NSString * _Nonnull const kMPFIRProjectIDKey = @"firebaseProjectId";
-static NSString * _Nonnull const kMPFIRUserIdFieldKey = @"userIdField";
+static NSString * _Nonnull const kMPFIRExternalUserIdentityType = @"userIdField";
+static NSString * _Nonnull const kMPFIRShouldHashUserId = @"hashUserId";
+static NSString * _Nonnull const kMPFIRForwardRequestsServerSide = @"forwardWebRequestsServerSide";
+static NSString * _Nonnull const kMPFIRCommerceEventType = @"Firebase.CommerceEventType";
+static NSString * _Nonnull const kMPFIRPaymentType = @"Firebase.PaymentType";
+static NSString * _Nonnull const kMPFIRShippingTier = @"Firebase.ShippingTier";