import * as path from 'path';

export class CLIUtils {
  static resolveDirectory(dir: string): string {
    if (path.isAbsolute(dir)) {
      return dir;
    }
    return path.resolve(process.cwd(), dir);
  }

  static resolveOutputPath(
    output: string,
    format: 'json' | 'yaml'
  ): string {
    if (path.isAbsolute(output)) {
      return output;
    }

    if (!output.endsWith(`.${format}`)) {
      return `${output}.${format}`;
    }

    return output;
  }

  static formatBytes(bytes: number): string {
    if (bytes === 0) return '0 B';
    const k = 1024;
    const sizes = ['B', 'KB', 'MB', 'GB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return `${parseFloat((bytes / Math.pow(k, i)).toFixed(2))} ${sizes[i]}`;
  }

  static sanitizePattern(pattern: string): string {
    return pattern
      .replace(/\*/g, '.*')
      .replace(/\?/g, '.');
  }
}