export interface PagedExporterOptions<TParams> {
  pageSize?: number;
  request: (params: TParams & { current: number; pageSize: number }) => Promise<{ data: any[]; total: number } | undefined>;
}

export interface PagedExporterResult {
  fetchData: () => Promise<{ currentCount: number; totalCount: number }>;
  reset: () => void;
  getAll: () => any[];
}

// 可复用的分页导出 Hook（无 React 依赖，简单状态机）
export function createPagedExporter<TParams = any>(options: PagedExporterOptions<TParams>) {
  const state = {
    current: 0,
    totalData: [] as any[],
    pageSize: options.pageSize || 100,
  };

  const fetchData = async (passThroughParams: TParams): Promise<{ currentCount: number; totalCount: number }> => {
    state.current += 1;
    const resp = await options.request({ ...(passThroughParams as any), current: state.current, pageSize: state.pageSize });
    const total = resp?.total || 0;
    const data = resp?.data || [];
    state.totalData = [...state.totalData, ...data];
    return { currentCount: state.totalData.length, totalCount: total };
  };

  const reset = () => {
    state.current = 0;
    state.totalData = [];
  };

  const getAll = () => state.totalData;

  return { fetchData, reset, getAll } as const;
}