addImport method

Future<void> addImport(String filePath, String importStatement)

Add an import statement to a Dart file The import will be added after the last existing import

Implementation

Future<void> addImport(String filePath, String importStatement) async {
  if (!fileExists(filePath)) {
    error('File not found: $filePath');
    return;
  }

  String content = await readFile(filePath);

  // Check if import already exists
  if (content.contains(importStatement)) {
    comment('Import already exists in $filePath');
    return;
  }

  // Find the last import statement
  final importRegex = RegExp(r"^import .*?;$", multiLine: true);
  final matches = importRegex.allMatches(content).toList();

  if (matches.isNotEmpty) {
    final lastImportEnd = matches.last.end;
    content = content.substring(0, lastImportEnd) +
        '\n$importStatement' +
        content.substring(lastImportEnd);
  } else {
    // No imports found, add at the beginning
    content = '$importStatement\n$content';
  }

  await writeFile(filePath, content);
}