import { RecordType } from '../interface';

/**
 * 获取URL参数信息
 * @param url 可选，指定URL，不传则使用当前页面URL
 * @returns URL参数信息对象
 */
export const getUrlParams = (url?: string): RecordType => {
  const query = url ? url : window.location.href;
  const urlSearchParams = new URLSearchParams(query.split('?')[1] || '');
  const result: RecordType = {};

  urlSearchParams.forEach((value, key) => {
    result[key] = value;
  });

  return result;
};

/**
 * 将对象转换为 URL 查询字符串
 * @param obj 要转换的对象
 * @returns URL 查询字符串
 */
export function stringify(obj: Record<string, any>): string {
  return Object.keys(obj)
    .map((key) => {
      const value = obj[key];
      if (value === null || value === undefined) {
        return '';
      }
      // 处理数组和嵌套对象
      if (Array.isArray(value)) {
        return value.map((v, i) => `${encodeURIComponent(key)}[${i}]=${encodeURIComponent(v)}`).join('&');
      }
      if (typeof value === 'object') {
        return Object.keys(value)
          .map(
            (subKey) =>
              `${encodeURIComponent(key)}[${encodeURIComponent(subKey)}]=${encodeURIComponent(value[subKey])}`,
          )
          .join('&');
      }
      return `${encodeURIComponent(key)}=${encodeURIComponent(value)}`;
    })
    .filter(Boolean) // 过滤空值
    .join('&');
}