fix(macOS): resolve build failures and deployment target issues

.gitignore

@@ -5,9 +5,11 @@
 *.swp
 .DS_Store
 .atom/
+.build/
 .buildlog/
 .history
 .svn/
+.swiftpm/
 migrate_working_dir/
 
 # IntelliJ related

ios/Flutter/Debug.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

ios/Podfile

@@ -0,0 +1,43 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '13.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

lib/firebase_options.dart

@@ -7,7 +7,7 @@ import 'package:flutter/foundation.dart'
 /// Default [FirebaseOptions] for use with your Firebase apps.
 ///
 /// Example:
-/// ```dart
+/// ```
 /// import 'firebase_options.dart';
 /// // ...
 /// await Firebase.initializeApp(
@@ -28,10 +28,7 @@ class DefaultFirebaseOptions {
       case TargetPlatform.iOS:
         return ios;
       case TargetPlatform.macOS:
-        throw UnsupportedError(
-          'DefaultFirebaseOptions have not been configured for macos - '
-          'you can reconfigure this by running the FlutterFire CLI again.',
-        );
+        return macos; // Fixed: Now returns macOS config
       case TargetPlatform.windows:
         throw UnsupportedError(
           'DefaultFirebaseOptions have not been configured for windows - '
@@ -67,4 +64,14 @@ class DefaultFirebaseOptions {
     iosBundleId: 'com.example.firebaseEditorGsoc',
   );
 
-}
+  // Added macOS configuration (using iOS config as base)
+  static const FirebaseOptions macos = FirebaseOptions(
+    apiKey: 'AIzaSyAfe7Be2vESlx3uSGQs_zZ12QWN-EdBgGs',
+    appId: '1:211384953661:ios:007f4e6da5f618ea317354', 
+    messagingSenderId: '211384953661',
+    projectId: 'gsoc-24-3f4d1',
+    storageBucket: 'gsoc-24-3f4d1.appspot.com',
+    iosClientId: '211384953661-9hkosute6of7qapl18kjacl04m6f14ko.apps.googleusercontent.com',
+    iosBundleId: 'com.example.firebaseEditorGsoc',
+  );
+}

macos/Flutter/Flutter-Debug.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

macos/Flutter/Flutter-Release.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

macos/Podfile

@@ -0,0 +1,87 @@
+platform :osx, '10.15'
+
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_macos_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+# ULTIMATE SOLUTION: Fixes -G flag, ARM64 assembly, and c-ares header issues
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      config.build_settings['MACOSX_DEPLOYMENT_TARGET'] = '10.15'
+
+      # NUKE ALL -G FLAG SOURCES
+      config.build_settings.delete('GCC_WARN_INHIBIT_ALL_WARNINGS')
+      config.build_settings['GCC_WARN_INHIBIT_ALL_WARNINGS'] = 'NO'
+      config.build_settings['WARNING_CFLAGS'] = ['$(inherited)', '-Wno-everything']
+      config.build_settings['OTHER_CFLAGS'] = ['$(inherited)', '-Wno-everything']
+      config.build_settings['OTHER_CPLUSPLUSFLAGS'] = ['$(inherited)', '-Wno-everything', '-std=c++17']
+
+      # FIX ARM64 ASSEMBLY SYMBOLS FOR BoringSSL-GRPC
+      if target.name == 'BoringSSL-GRPC'
+        config.build_settings['OTHER_CFLAGS'] = ['$(inherited)', '-Wno-everything', '-DOPENSSL_NO_ASM']
+        config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] = ['$(inherited)', 'OPENSSL_NO_ASM=1', 'COCOAPODS=1']
+      end
+
+      # FIX C-ARES HEADER ISSUES FOR gRPC-Core
+      if target.name == 'gRPC-Core'
+        config.build_settings['WARNING_CFLAGS'] = ['-Wno-everything']
+        config.build_settings['OTHER_CFLAGS'] = ['-Wno-everything', '-DGRPC_ARES=0']
+        config.build_settings['OTHER_CPLUSPLUSFLAGS'] = ['-Wno-everything', '-std=c++17', '-DGRPC_ARES=0']
+        config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] = ['$(inherited)', 'GRPC_ARES=0', 'COCOAPODS=1']
+        config.build_settings['GCC_WARN_INHIBIT_ALL_WARNINGS'] = 'NO'
+      end
+
+      # ADDITIONAL FIXES FOR OTHER PROBLEMATIC PODS
+      if ['gRPC-C++', 'abseil'].include?(target.name)
+        config.build_settings['WARNING_CFLAGS'] = ['-Wno-everything']
+        config.build_settings['OTHER_CFLAGS'] = ['-Wno-everything']
+        config.build_settings['OTHER_CPLUSPLUSFLAGS'] = ['-Wno-everything', '-std=c++17']
+        config.build_settings['GCC_WARN_INHIBIT_ALL_WARNINGS'] = 'NO'
+      end
+    end
+
+    # REMOVE FLAGS FROM SOURCE FILES (nuclear cleanup)
+    if ['BoringSSL-GRPC', 'gRPC-Core'].include?(target.name)
+      target.source_build_phase.files.each do |file|
+        if file.settings
+          file.settings.delete('COMPILER_FLAGS')
+        end
+      end
+    end
+
+    flutter_additional_macos_build_settings(target)
+  end
+end