// lib/utils.ts
// Client-safe utility functions
import * as fs from 'fs';
import * as path from 'path';

/**
 * 格式化版本号显示 (0_42 -> 0.42)
 */
export function formatVersion(version: string): string {
  return version.replace(/_/g, '.');
}

/**
 * 格式化文件大小
 */
export function formatFileSize(bytes: number): string {
  if (bytes < 1024) return bytes + ' B';
  if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(2) + ' KB';
  if (bytes < 1024 * 1024 * 1024) return (bytes / (1024 * 1024)).toFixed(2) + ' MB';
  return (bytes / (1024 * 1024 * 1024)).toFixed(2) + ' GB';
}

/**
 * 格式化日期时间
 */
export function formatDateTime(date: Date): string {
  const year = date.getFullYear();
  const month = String(date.getMonth() + 1).padStart(2, '0');
  const day = String(date.getDate()).padStart(2, '0');
  const hours = String(date.getHours()).padStart(2, '0');
  const minutes = String(date.getMinutes()).padStart(2, '0');
  return `${year}-${month}-${day} ${hours}:${minutes}`;
}

/**
 * 获取项目显示名称（从别名配置）
 */
export function getProjectDisplayName(projectName: string): string {
  try {
    const aliasesPath = path.join(process.cwd(), 'lib', 'project-aliases.json');
    const aliasesContent = fs.readFileSync(aliasesPath, 'utf-8');
    const aliases = JSON.parse(aliasesContent);
    return aliases[projectName] || projectName;
  } catch {
    // If file doesn't exist or is invalid, return original name
    return projectName;
  }
}