[Infra] Break up ClientApp based on min. supported version (#11931)

ClientApp/ClientApp-CocoaPods-iOS13/ClientApp_CocoaPods_iOS13.entitlements

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.files.user-selected.read-only</key>
+    <true/>
+</dict>
+</plist>

ClientApp/ClientApp-CocoaPods-iOS13/Preview Content/Preview Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ClientApp/ClientApp-iOS13/ClientApp_iOS13.entitlements

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.files.user-selected.read-only</key>
+    <true/>
+</dict>
+</plist>

ClientApp/ClientApp-iOS13/Preview Content/Preview Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ClientApp/Podfile

@@ -2,19 +2,15 @@ source 'https://github.com/firebase/SpecsDev.git'
 source 'https://github.com/firebase/SpecsStaging.git'
 source 'https://cdn.cocoapods.org/'
 
-# Uncomment the next line to define a global platform for your project
-platform :ios, '13.0'
-
 target 'ClientApp-CocoaPods' do
-  # Comment the next line if you don't want to use dynamic frameworks
+  platform :ios, '11.0'
+
   use_frameworks!
 
-  # Pods for ClientApp-CocoaPods
   pod 'FirebaseCore', :path => '../'
   pod 'FirebaseInstallations', :path => '../'
   pod 'FirebaseAnalytics' # Binary pods don't work with `:path`.
   pod 'FirebaseAnalyticsOnDeviceConversion', :path => '../'
-  pod 'FirebaseAnalyticsSwift', :path => '../'
   pod 'FirebaseABTesting', :path => '../'
   pod 'FirebaseAppCheck', :path => '../'
   pod 'FirebaseRemoteConfig', :path => '../'
@@ -29,11 +25,21 @@ target 'ClientApp-CocoaPods' do
   pod 'FirebaseFirestoreSwift', :path => '../'
   pod 'FirebaseFunctions', :path => '../'
   pod 'FirebaseInAppMessaging', :path => '../'
-  pod 'FirebaseInAppMessagingSwift', :path => '../'
   pod 'FirebaseMessaging', :path => '../'
   pod 'FirebasePerformance', :path => '../'
   pod 'FirebaseStorage', :path => '../'
   pod 'FirebaseMLModelDownloader', :path => '../'
   pod 'Firebase', :path => '../'
+end
+
+target 'ClientApp-CocoaPods-iOS13' do
+  platform :ios, '13.0'
+
+  use_frameworks!
+
+  pod 'FirebaseAnalytics' # Binary pods don't work with `:path`.
+  pod 'FirebaseAnalyticsSwift', :path => '../' # Requires iOS 13.0+
+  pod 'FirebaseInAppMessaging', :path => '../'
+  pod 'FirebaseInAppMessagingSwift', :path => '../' # Requires iOS 13.0+
 
 end

ClientApp/Shared/swift-import-test.swift → ClientApp/Shared-iOS11+/swift-import-test.swift

@@ -21,7 +21,6 @@
 // NOTE(ncooke3): `FirebaseABTesting` is not listed as a library.
 import FirebaseABTesting
 import FirebaseAnalytics
-import FirebaseAnalyticsSwift
 import FirebaseAppCheck
 #if os(iOS) && !targetEnvironment(macCatalyst)
   import FirebaseAppDistribution
@@ -52,7 +51,6 @@ import FirebaseMLModelDownloader
 #if (os(iOS) && !targetEnvironment(macCatalyst)) || os(tvOS)
   import FirebasePerformance
   import FirebaseInAppMessaging
-  import FirebaseInAppMessagingSwift
 #endif
 import FirebaseRemoteConfig
 import FirebaseRemoteConfigSwift

ClientApp/Shared/ClientApp.swift → ClientApp/Shared-iOS13+/swift-import-test.swift

@@ -12,13 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import SwiftUI
-
-@main
-struct ClientApp: App {
-  var body: some Scene {
-    WindowGroup {
-      ContentView()
-    }
-  }
-}
+import FirebaseAnalytics
+import FirebaseAnalyticsSwift
+#if (os(iOS) && !targetEnvironment(macCatalyst)) || os(tvOS)
+  import FirebaseInAppMessaging
+  import FirebaseInAppMessagingSwift
+#endif

ClientApp/Shared/ContentView.swift → ClientApp/Shared/AppDelegate.swift

@@ -12,22 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import SwiftUI
+import UIKit
 
-struct ContentView: View {
-  var body: some View {
-    VStack {
-      Image(systemName: "globe")
-        .imageScale(.large)
-        .foregroundColor(.accentColor)
-      Text("Hello, world!")
-    }
-    .padding()
-  }
-}
-
-struct ContentView_Previews: PreviewProvider {
-  static var previews: some View {
-    ContentView()
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+  func application(_ application: UIApplication,
+                   didFinishLaunchingWithOptions launchOptions: [UIApplication
+                     .LaunchOptionsKey: Any]?) -> Bool {
+    return true
   }
 }