feat: Initial commit.

packages/katana_functions_firebase/.gitignore

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+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+build/
+
+# Android related
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+**/android/**/GeneratedPluginRegistrant.java
+
+# iOS/XCode related
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/.symlinks/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Flutter.podspec
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/app.flx
+**/ios/Flutter/app.zip
+**/ios/Flutter/flutter_assets/
+**/ios/Flutter/flutter_export_environment.sh
+**/ios/ServiceDefinitions.json
+**/ios/Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
+
+# Example
+example/**/google-services.json
+example/**/GoogleService-Info.plist
+example/**/firebase_options.dart

packages/katana_functions_firebase/.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 1aafb3a8b9b0c36241c5f5b34ee914770f015818
+  channel: stable
+
+project_type: package

packages/katana_functions_firebase/.pubignore

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+# See https://dart.dev/tools/pub/publishing#what-files-are-published
+
+/pubspec_overrides.yaml

packages/katana_functions_firebase/LICENSE

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+Copyright (c) 2021, mathru (https://mathru.net)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+* Redistributions of source code must retain the above copyright notice, 
+  this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright notice, 
+  this list of conditions and the following disclaimer in the documentation 
+  and/or other materials provided with the distribution.
+* Neither the name of the <organization> nor the names of its contributors 
+  may be used to endorse or promote products derived from this software 
+  without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/katana_functions_firebase/README.md

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+<p align="center">
+  <a href="https://mathru.net">
+    <img width="240px" src="https://raw.githubusercontent.com/mathrunet/flutter_masamune/master/.github/images/icon.png" alt="Masamune logo" style="border-radius: 32px"s><br/>
+  </a>
+  <h1 align="center">Katana Functions</h1>
+</p>
+
+<p align="center">
+  <a href="https://twitter.com/mathru">
+    <img src="https://img.shields.io/twitter/follow/mathru.svg?colorA=1da1f2&colorB=&label=Follow%20on%20Twitter&style=flat-square" alt="Follow on Twitter" />
+  </a>
+  <a href="https://github.com/invertase/melos">
+    <img src="https://img.shields.io/badge/maintained%20with-melos-f700ff.svg?style=flat-square" alt="Maintained with Melos" />
+  </a>
+</p>
+
+<p align="center">
+  <a href="https://www.buymeacoffee.com/mathru"><img src="https://img.buymeacoffee.com/button-api/?text=Buy me a coffee&emoji=&slug=mathru&button_colour=FF5F5F&font_colour=ffffff&font_family=Poppins&outline_colour=000000&coffee_colour=FFDD00" width="136" /></a>
+</p>
+
+---
+
+[[YouTube]](https://www.youtube.com/c/mathrunetchannel) | [[Packages]](https://pub.dev/publishers/mathru.net/packages) | [[Twitter]](https://twitter.com/mathru) | [[LinkedIn]](https://www.linkedin.com/in/mathrunet/)
+
+---

packages/katana_functions_firebase/lib/adapter/firebase_functions_adapter.dart

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+part of katana_functions_firebase;
+
+/// Adapter to return server-side processing using Firebase Functions.
+///
+/// The server-side implementation can be simplified by using `@mathrunet/mathamune` in npm.
+///
+/// Firebase Functionsを利用してサーバー側の処理を返すためのアダプター。
+///
+/// npmの`@mathrunet/masamune`を利用することでサーバー側の実装を簡略化することができます。
+class FirebaseFunctionsAdapter extends FunctionsAdapter {
+  /// Adapter to return server-side processing using Firebase Functions.
+  ///
+  /// The server-side implementation can be simplified by using `@mathrunet/mathamune` in npm.
+  ///
+  /// Firebase Functionsを利用してサーバー側の処理を返すためのアダプター。
+  ///
+  /// npmの`@mathrunet/masamune`を利用することでサーバー側の実装を簡略化することができます。
+  const FirebaseFunctionsAdapter();
+
+  /// Instances of Firebase Functions.
+  ///
+  /// Firebase Functionsのインスタンス。
+  FirebaseFunctions get functions {
+    return FirebaseFunctions.instance;
+  }
+
+  @override
+  Future<void> sendNotification({
+    required String title,
+    required String text,
+    String? channel,
+    DynamicMap? data,
+    required String target,
+  }) async {
+    try {
+      final regExp = RegExp(r"[a-zA-Z0-9]{11}:[0-9a-zA-Z_-]+");
+      final isToken = regExp.hasMatch(target);
+      await FirebaseCore.initialize();
+      await functions.httpsCallable("send_notification").call(
+        {
+          "title": title,
+          "text": text,
+          if (channel != null) "channel_id": channel,
+          if (data != null) "data": data,
+          if (isToken) "token": target else "topic": target,
+        },
+      );
+    } catch (e) {
+      print(e.toString());
+      rethrow;
+    }
+  }
+}

packages/katana_functions_firebase/lib/katana_functions_firebase.dart

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+// Copyright 2023 mathru. All rights reserved.
+
+/// Provides an adapter for use with Firebase Functions. Provides an interface to execute server-side processing in a type-safe manner. Actual processing on the server side is done by importing a separate adapter.
+///
+/// To use, import `package:katana_functions_firebase/katana_functions_firebase.dart`.
+///
+/// [mathru.net]: https://mathru.net
+/// [YouTube]: https://www.youtube.com/c/mathrunetchannel
+library katana_functions_firebase;
+
+import 'package:cloud_functions/cloud_functions.dart';
+import 'package:flutter/widgets.dart';
+import 'package:katana_firebase/katana_firebase.dart';
+import 'package:katana_functions/katana_functions.dart';
+
+export 'package:katana_functions/katana_functions.dart';
+
+part 'adapter/firebase_functions_adapter.dart';