// Copyright 2025 Google LLC

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

// ignore_for_file: avoid_print

import 'dart:io' show Directory, File;

import 'package:path/path.dart' show basename, joinAll;

import 'package:yaml/yaml.dart' show YamlMap, loadYaml;

Future<void> main() async {

final packagesDir = Directory('packages');

final webPackages = <String>[];

// Find all packages with _web directories

await for (final packageDir in packagesDir.list()) {

if (packageDir is Directory) {

final packageName = basename(packageDir.path);

final webDir =

Directory(joinAll([packageDir.path, '${packageName}_web']));

if (webDir.existsSync()) {

webPackages.add(packageName);

}

}

}

print('Found web packages: ${webPackages.join(', ')}');

// Process each web package

for (final packageName in webPackages) {

await _generateVersionFile(packageName);

}

print('Generated version files for ${webPackages.length} web packages');

}

Future<void> _generateVersionFile(String packageName) async {

final webPackageName = '${packageName}_web';

// Path to the web package's pubspec.yaml

final pubspecPath = joinAll([

'packages',

packageName,

packageName,

'pubspec.yaml',

]);

// Path to the version file to generate

final versionFilePath = joinAll([

'packages',

packageName,

webPackageName,

'lib',

'src',

'${packageName}_version.dart',

]);

try {

// Read the pubspec.yaml to get the version

final pubspecFile = File(pubspecPath);

if (!pubspecFile.existsSync()) {

print(

'Warning: pubspec.yaml not found for $webPackageName at $pubspecPath',

);

return;

}

final yamlMap = loadYaml(pubspecFile.readAsStringSync()) as YamlMap;

final currentVersion = yamlMap['version'] as String;

print('Processing $webPackageName version $currentVersion');

// Create the version file content

final fileContent = '''

// Copyright 2025 Google LLC

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

/// generated version number for the package, do not manually edit

const packageVersion = '$currentVersion';

''';

// Ensure the src directory exists

final srcDir = Directory(

joinAll([

'packages',

packageName,

webPackageName,

'lib',

'src',

]),

);

if (!srcDir.existsSync()) {

await srcDir.create(recursive: true);

}

// Write the version file

final versionFile = File(versionFilePath);

await versionFile.writeAsString(fileContent);

print('Generated version file: $versionFilePath');

} catch (e) {

print('Error processing $webPackageName: $e');

}

}