/**
 * 解析相对路径为绝对路径
 * 支持 ./ 和 ../ 语法
 * @param base - 基准路径（通常是当前 markdown 文件的路径）
 * @param relative - 相对路径或绝对路径
 * @returns 解析后的路径
 */
export function resolvePath(base: string, relative: string): string {
  if(!relative) return relative;
  if (relative.startsWith('/')) {
    return relative;
  }
  // if starts with http(s)://
  if(relative.startsWith('http://') || relative.startsWith('https://')){
      return relative;
  }

  const baseParts = base.split('/').filter(Boolean);
  // 移除文件名，保留目录路径
  if (baseParts.length > 0 && !base.endsWith('/')) {
    baseParts.pop();
  }

  const relativeParts = relative.split('/');

  for (const part of relativeParts) {
    if (part === '.' || part === '') {
      // 跳过 . 和空字符串
      continue;
    } else if (part === '..') {
      // 向上一级
      baseParts.pop();
    } else {
      // 普通路径段
      baseParts.push(part);
    }
  }

  return '/' + baseParts.join('/');
}


// export function loadElementSrc(element?: { textContent: string, closest: (arg0: string) => HTMLElement }){
export function loadElementSrc(element?: any | HTMLElement){
  const rawSrc = element?.textContent;
  if(element) element.textContent = "";

  const articleEl = element?.closest('article[data-src]');
  const articlePath = articleEl?.getAttribute('data-src') || '';

  return { articlePath, rawSrc };
}