Add cocoapods support (broken)

Author: cherylEnkidu

FirebaseFirestore.podspec

@@ -24,20 +24,30 @@ Google Cloud Firestore is a NoSQL document database built for automatic scaling,
   s.cocoapods_version = '>= 1.12.0'
   s.prefix_header_file = false
 
-  s.public_header_files = 'FirebaseFirestoreInternal/**/*.h'
+  s.public_header_files = [
+    'FirebaseFirestoreInternal/**/*.h',
+    'Firestore/Swift/Source/SwiftAPI/*.swift',
+  ]
 
   s.requires_arc            = true
   s.source_files = [
     'FirebaseFirestoreInternal/**/*.[mh]',
     'Firestore/Swift/Source/**/*.swift',
   ]
+  
+  s.pod_target_xcconfig = {
+    # Enables C++ <-> Swift interop (by default it's only C)
+    "SWIFT_OBJC_INTEROP_MODE" => "objcxx",
+  }
+  
   s.resource_bundles = {
     "#{s.module_name}_Privacy" => 'Firestore/Swift/Source/Resources/PrivacyInfo.xcprivacy'
   }
 
   s.dependency 'FirebaseCore', '11.5'
   s.dependency 'FirebaseCoreExtension', '11.5'
   s.dependency 'FirebaseFirestoreInternal', '11.5.0'
+  s.dependency 'FirebaseFirestoreCpp', '11.5.0'
   s.dependency 'FirebaseSharedSwift', '~> 11.0'
 
 end

FirebaseFirestoreCpp.podspec

@@ -0,0 +1,65 @@
+Pod::Spec.new do |s|
+  s.name             = 'FirebaseFirestoreCpp'
+  s.version          = '11.5.0'
+  s.summary          = 'Google Cloud Firestore'
+
+  s.description      = <<-DESC
+Google Cloud Firestore is a NoSQL document database built for automatic scaling, high performance, and ease of application development.
+                       DESC
+
+  s.homepage         = 'https://developers.google.com/'
+  s.license          = { :type => 'Apache-2.0', :file => 'Firestore/LICENSE' }
+  s.authors          = 'Google, Inc.'
+
+  s.source           = {
+    :git => 'https://github.com/firebase/firebase-ios-sdk.git',
+    :tag => 'CocoaPods-' + s.version.to_s
+  }
+
+  s.ios.deployment_target = '13.0'
+  s.osx.deployment_target = '10.15'
+  s.tvos.deployment_target = '13.0'
+
+  s.swift_version = '5.9'
+
+  s.cocoapods_version = '>= 1.12.0'
+  s.prefix_header_file = false
+
+  s.public_header_files = 'Firestore/core/swift/umbrella/*.h'
+
+  s.source_files = [
+    'Firestore/core/swift/**/*.{cc,h}'
+  ]
+
+  abseil_version = '~> 1.20240116.1'
+  s.dependency 'abseil/algorithm', abseil_version
+  s.dependency 'abseil/base', abseil_version
+  s.dependency 'abseil/container/flat_hash_map', abseil_version
+  s.dependency 'abseil/memory', abseil_version
+  s.dependency 'abseil/meta', abseil_version
+  s.dependency 'abseil/strings/strings', abseil_version
+  s.dependency 'abseil/time', abseil_version
+  s.dependency 'abseil/types', abseil_version
+
+  s.ios.frameworks = 'SystemConfiguration', 'UIKit'
+  s.osx.frameworks = 'SystemConfiguration'
+  s.tvos.frameworks = 'SystemConfiguration', 'UIKit'
+
+  s.library = 'c++'
+  s.pod_target_xcconfig = {
+    'CLANG_CXX_LANGUAGE_STANDARD' => 'c++14',
+    'CLANG_CXX_LIBRARY' => 'libc++',
+    'GCC_C_LANGUAGE_STANDARD' => 'c99',
+    'GCC_PREPROCESSOR_DEFINITIONS' =>
+      "FIRFirestore_VERSION=#{s.version} " +
+      # The nanopb pod sets these defs, so we must too. (We *do* require 16bit
+      # (or larger) fields, so we'd have to set at least PB_FIELD_16BIT
+      # anyways.)
+      'PB_FIELD_32BIT=1 PB_NO_PACKED_STRUCTS=1 PB_ENABLE_MALLOC=1',
+    'HEADER_SEARCH_PATHS' =>
+      '"${PODS_TARGET_SRCROOT}" ' +
+      '"${PODS_TARGET_SRCROOT}/Firestore/core/swift/include" '
+  }
+
+  s.compiler_flags = '$(inherited) -Wreorder -Werror=reorder -Wno-comma'
+end