import type { Page, PageParams } from '@/types/base/page';

// 默认分页参数
const DEFAULT_PAGE_SIZE = 10;
const DEFAULT_CURRENT = 1;

/**
 * 转换前端分页参数为后端分页参数
 */
export const convertToPageParams = (params?: {
  current?: number;
  pageSize?: number;
  sortField?: string;
  sortOrder?: string;
}): PageParams => ({
  pageNum: Math.max(1, params?.current || DEFAULT_CURRENT) - 1,  // 转换为从0开始的页码
  pageSize: params?.pageSize || DEFAULT_PAGE_SIZE,
  sortField: params?.sortField,
  sortOrder: params?.sortOrder?.replace('end', '')
});

/**
 * 转换后端分页数据为前端分页数据
 */
export const convertToPageInfo = (page?: Page<any>) => ({
  current: (page?.number || 0) + 1,
  pageSize: page?.size || DEFAULT_PAGE_SIZE,
  total: page?.totalElements || 0
});