feat: Changed Android billing to authentication by service account.

packages/katana_cli/lib/action/purchase/purchase.dart

@@ -43,9 +43,6 @@ class PurchaseCliAction extends CliCommand with CliActionMixin {
     final purchase = context.yaml.getAsMap("purchase");
     final googlePlay = purchase.getAsMap("google_play");
     final appStore = purchase.getAsMap("app_store");
-    final googlePlayClientId = googlePlay.get("oauth_client_id", "");
-    final googlePlayClientSecret = googlePlay.get("oauth_client_secret", "");
-    final googlePlayRefreshToken = googlePlay.get("refresh_token", "");
     final googlePlayPubsubTopic = googlePlay.get("pubsub_topic", "");
     final appStoreSharedSecret = appStore.get("shared_secret", "");
     final firebase = context.yaml.getAsMap("firebase");
@@ -55,17 +52,29 @@ class PurchaseCliAction extends CliCommand with CliActionMixin {
     final region = function.get("region", "");
     final enableGooglePlay = googlePlay.get("enable", false);
     final enableAppStore = appStore.get("enable", false);
+    late final String androidServiceAccountEmail;
+    late final String androidServiceAccountPrivateKey;
     if (enableGooglePlay) {
-      if (googlePlayClientId.isEmpty || googlePlayClientSecret.isEmpty) {
+      final serviceAccountFile = await find(
+        Directory("android"),
+        RegExp("([a-z0-9_-]+).json"),
+        recursive: false,
+      );
+      if (serviceAccountFile == null) {
         error(
-          "The item [purchase]->[google_play]->[oauth_client_id] or [purchase]->[google_play]->[oauth_client_secret] is empty. Please set it.",
+          "Json for service account not found, please refer to https://mathru.notion.site/Google-Play-Developer-df655aff2dfb49988b82feb7aae3c61b to set it up. サービスアカウント用のJsonが見つかりません。https://mathru.notion.site/Google-Play-Developer-df655aff2dfb49988b82feb7aae3c61b を参考に設定してください。",
         );
         return;
       }
-      if (googlePlayRefreshToken.isEmpty) {
+      final serviceAccountMap =
+          (await serviceAccountFile.readAsString()).toJsonMap();
+      androidServiceAccountEmail = serviceAccountMap.get("client_email", "");
+      androidServiceAccountPrivateKey =
+          serviceAccountMap.get("private_key", "");
+      if (androidServiceAccountPrivateKey.isEmpty ||
+          androidServiceAccountEmail.isEmpty) {
         error(
-          "The item [purchase]->[google_play]->[refresh_token] is empty. Please set it."
-          "After entering [purchase]->[google_play]->[oauth_client_id] and [purchase]->[google_play]->[oauth_client_secret], run `katana store android_token and run `katana store android_token` to get a refresh token.",
+          "Json for service account is broken, please refer to https://mathru.notion.site/Google-Play-Developer-df655aff2dfb49988b82feb7aae3c61b to set it up. サービスアカウント用のJsonが壊れています。https://mathru.notion.site/Google-Play-Developer-df655aff2dfb49988b を参考に設定してください。",
         );
         return;
       }
@@ -211,8 +220,8 @@ class PurchaseCliAction extends CliCommand with CliActionMixin {
           ),
         );
       }
-      if (manifest.first.attributes
-          .any((p0) => p0.name.toString() != "xmlns:tools")) {
+      if (!manifest.first.attributes
+          .any((p0) => p0.name.toString() == "xmlns:tools")) {
         manifest.first.attributes.add(
           XmlAttribute(
             XmlName("xmlns:tools"),
@@ -260,12 +269,6 @@ class PurchaseCliAction extends CliCommand with CliActionMixin {
       label("Add firebase functions");
       final functions = Fuctions();
       await functions.load();
-      if (!functions.functions.any((e) => e.startsWith("androidAuthCode"))) {
-        functions.functions.add("androidAuthCode()");
-      }
-      if (!functions.functions.any((e) => e.startsWith("androidToken"))) {
-        functions.functions.add("androidToken()");
-      }
       if (enableAppStore) {
         if (!functions.functions
             .any((e) => e.startsWith("consumableVerifyIOS"))) {
@@ -309,9 +312,10 @@ class PurchaseCliAction extends CliCommand with CliActionMixin {
       await env.load();
       env["PURCHASE_SUBSCRIPTIONPATH"] = "plugins/iap/subscription";
       if (enableGooglePlay) {
-        env["PURCHASE_ANDROID_CLIENTID"] = googlePlayClientId;
-        env["PURCHASE_ANDROID_CLIENTSECRET"] = googlePlayClientSecret;
-        env["PURCHASE_ANDROID_REFRESHTOKEN"] = googlePlayRefreshToken;
+        env["PURCHASE_ANDROID_SERVICEACCOUNT_EMAIL"] =
+            androidServiceAccountEmail;
+        env["PURCHASE_ANDROID_SERVICEACCOUNT_PRIVATE_KEY"] =
+            androidServiceAccountPrivateKey;
       }
       if (enableAppStore) {
         env["PURCHASE_IOS_SHAREDSECRET"] = appStoreSharedSecret;

packages/katana_cli/lib/command/store/android_token.dart

@@ -3,6 +3,7 @@ part of "store.dart";
 /// Obtain a refresh token for store billing on Google Play.
 ///
 /// GooglePlayでストア課金を行うためのリフレッシュトークンを取得します。
+@Deprecated("サービスアカウントを使用する方法に変更されました。")
 class StoreAndroidTokenCliCommand extends CliCommand {
   /// Obtain a refresh token for store billing on Google Play.
   ///

packages/katana_cli/lib/command/store/store.dart

@@ -23,7 +23,6 @@ class StoreCliCommand extends CliCommandGroup {
   @override
   Map<String, CliCommand> get commands => const {
         "screenshot": StoreScreenshotCliCommand(),
-        "android_token": StoreAndroidTokenCliCommand(),
         "build": StoreAndroidBuildCliCommand(),
       };
 }

packages/katana_cli/lib/config.dart

@@ -537,31 +537,24 @@ purchase:
 
   # Configure settings for Google Play billing.
   # Follow the steps below to configure the settings.
-  # 1. Obtain the OAuth client ID and client secret based on the URL below.
+  # 1. Create a service account with permissions to GooglePlayConsole based on the URL below.
   #    https://mathru.notion.site/Android-1d4a60948a1446d7a82c010d96417a3d?pvs=4
   #    ※ You need to create an OAuth consent screen. Please create it from the following URL.
   #    https://console.cloud.google.com/apis/credentials/consent
-  # 2. Set `enable` to `true` and enter the values you obtained for `oauth_client_id` and `oauth_client_secret`.
-  # 3. Run `katana store android_token` to get a refresh token.
-  # 4. Enter the obtained refresh token in the `refresh_token` field.
-  # 5. Run `katana apply` to deploy the app and server.
-  # 6. Set the topic ID for notification to `pubsub_topic`.
+  # 2. Set `enable` to `true`.
+  # 3. Set the topic ID for the notification to `pubsub_topic`.
+  # 4. Run `katana apply` to deploy the app and server.
   # GooglePlayの課金を行う場合の設定を行います。
   # 下記の手順で設定を行います。
-  # 1. 下記URLを元にOAuthのクライアントIDとクライアントシークレットを取得します。
+  # 1. 下記URLを元にGooglePlayConsoleに権限があるサービスアカウントを作成します。
   #    https://mathru.notion.site/Android-1d4a60948a1446d7a82c010d96417a3d?pvs=4
   #    ※OAuthの同意画面を作成する必要があります。下記のURLから作成してください。
   #    https://console.cloud.google.com/apis/credentials/consent
-  # 2. `enable`を`true`にし、`oauth_client_id`と`oauth_client_secret`に取得した値を入力します。
-  # 3. `katana store android_token`を実行しリフレッシュトークンを取得します。
-  # 4. 取得したリフレッシュトークンを`refresh_token`に入力します。
-  # 5. `katana apply`を実行しアプリとサーバーのデプロイを行います。
-  # 6. 通知用のトピックIDを`pubsub_topic`に設定します。
+  # 2. `enable`を`true`にします。
+  # 3. 通知用のトピックIDを`pubsub_topic`に設定します。
+  # 4. `katana apply`を実行しアプリとサーバーのデプロイを行います。
   google_play:
     enable: false
-    oauth_client_id: 
-    oauth_client_secret: 
-    refresh_token: 
     pubsub_topic: purchasing
   
   # Configure settings for AppStore billing.

packages/katana_cli/pubspec.lock

@@ -167,7 +167,7 @@ packages:
       path: "../katana"
       relative: true
     source: path
-    version: "2.11.0"
+    version: "2.12.1"
   lints:
     dependency: transitive
     description: