#!/usr/bin/env dart
/// Generates lib/version.g.dart from pubspec.yaml
///
/// Run before building: `dart run tool/generate_version.dart`

import 'dart:io';

import 'package:yaml/yaml.dart';

void main() {
  final pubspecFile = File('pubspec.yaml');
  if (!pubspecFile.existsSync()) {
    stderr.writeln('Error: pubspec.yaml not found');
    exit(1);
  }

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

  final name = pubspec['name'] as String;
  final description = pubspec['description'] as String;
  final versionString = pubspec['version'] as String;

  // Parse version: "0.1.0+1" -> version="0.1.0", buildNumber=1
  final versionParts = versionString.split('+');
  final version = versionParts[0];
  final buildNumber = versionParts.length > 1 ? int.parse(versionParts[1]) : 0;

  final output = '''
// GENERATED FILE - DO NOT EDIT
// Generated by: dart run tool/generate_version.dart

/// Application version information from pubspec.yaml
class AppVersion {
  AppVersion._();

  static const String name = '$name';
  static const String description = '$description';
  static const String version = '$version';
  static const int buildNumber = $buildNumber;
  static const String fullVersion = '$version+$buildNumber';
}
''';

  final outputFile = File('lib/version.g.dart');
  outputFile.writeAsStringSync(output);

  print('Generated lib/version.g.dart');
  print('  name: $name');
  print('  version: $version+$buildNumber');
}