import { tools } from "@cqsjjb/jjb-common-lib";
import { useAntdTable } from "ahooks";

const { query } = tools.router;

/**
 * 获取数据
 */
function getService(service, getExtraParams = {}, transform) {
  // 获取额外的参数
  const extraParams = (typeof getExtraParams === "function" ? getExtraParams() : getExtraParams) || {};
  // 获取数据
  return async ({ current, pageSize }, formData = {}) => {
    // 如果提供了 transform 函数，则在请求之前调用它
    let transformedFormData = formData;
    if (typeof transform === "function") {
      const transformResult = transform(formData);
      // 如果 transform 函数有返回值，则将其与原始表单数据合并，transform 的优先级更高
      if (transformResult && typeof transformResult === "object") {
        transformedFormData = { ...formData, ...transformResult };
      }
    }

    // 发起请求
    const res = await service({
      pageIndex: current,
      pageSize,
      ...transformedFormData,
      ...extraParams,
    });
    // 返回数据
    return {
      list: res.data || [],
      total: res.totalCount || 0,
      ...res,
    };
  };
}

/**
 * 将搜索表单项和分页参数保存到 URL 中
 */
function setQuery(searchForm, pagination) {
  // 将对象转换为键值对字符串格式
  const getJoinString = (data) => {
    const keys = [];
    const values = [];
    Object.entries(data).forEach(([key, value]) => {
      if (value) {
        keys.push(key);
        if (Array.isArray(value)) {
          // 数组值使用方括号包裹，并用竖线分隔
          values.push(`[${value.join("|")}]`);
        }
        else {
          values.push(value);
        }
      }
    });
    return { keys: keys.join(","), values: values.join(",") };
  };

  // 获取搜索表单和分页数据的键值对字符串
  const searchFormData = getJoinString(searchForm);
  const paginationData = getJoinString(pagination);

  // 将数据存储到 URL 查询参数中
  query.searchFormKeys = searchFormData.keys;
  query.searchFormValues = searchFormData.values;
  query.paginationKeys = paginationData.keys;
  query.paginationValues = paginationData.values;
}

/**
 * 从 URL 中获取查询参数
 */
function getQuery(keysStr, valuesStr) {
  // 将键值字符串分割为数组
  const keys = keysStr ? keysStr.split(",") : [];
  const values = valuesStr ? valuesStr.split(",") : [];

  // 构建结果对象
  const resultMap = {};
  keys.forEach((key, index) => {
    if (values[index]) {
      // 处理数组值（方括号包裹的值）
      if (values[index].startsWith("[") && values[index].endsWith("]")) {
        const arrayContent = values[index].substring(1, values[index].length - 1);
        resultMap[key] = arrayContent ? arrayContent.split("|") : [];
      }
      else {
        // 处理普通值
        resultMap[key] = values[index];
      }
    }
  });
  return resultMap;
}

/**
 * 自定义 useTable，继承 ahooks 的 useAntdTable，根据需求进行扩展
 */
function useTable(service, options) {
  // 获取额外参数和转换函数
  const { params: extraParams, transform, ...restOptions } = options || {};

  // 获取配置项
  const {
    useStorageQueryCriteria = true,
    usePagination = true,
    defaultType = "advance",
    defaultCurrent = 1,
    defaultPageSize = 10,
    defaultPagination = { current: defaultCurrent, pageSize: defaultPageSize },
    ...restRestOptions
  } = restOptions;

  // 获取存储的查询条件
  const storageQueryCriteriaSearchForm = useStorageQueryCriteria ? getQuery(query.searchFormKeys, query.searchFormValues) : {};
  const storageQueryCriteriaPagination = useStorageQueryCriteria && usePagination ? getQuery(query.paginationKeys, query.paginationValues) : {};

  // 确定实际使用的搜索表单和分页参数
  const actualSearchForm = Object.keys(storageQueryCriteriaSearchForm).length > 0 ? storageQueryCriteriaSearchForm : {};
  /** @type {{current: number, pageSize: number}} */
  const actualPagination = usePagination ? Object.keys(storageQueryCriteriaPagination).length > 0 ? storageQueryCriteriaPagination : defaultPagination : {};

  // 调用 ahooks 的 useAntdTable
  const res = useAntdTable(
    getService(service, extraParams, transform),
    {
      ...restRestOptions,
      defaultParams: [actualPagination, actualSearchForm],
      defaultType,
      onSuccess: (data, params) => {
        // 执行成功回调，为了保留 ahooks 的 onSuccess 回调
        restOptions.onSuccess && restOptions.onSuccess(data, params);
        // 存储查询条件和分页到 URL
        useStorageQueryCriteria && setQuery(
          params[1] ?? {},
          usePagination
            ? { current: res.tableProps.pagination.current, pageSize: res.tableProps.pagination.pageSize }
            : {},
        );
      },
    },
  );

  // 执行回调函数
  restOptions.callback && restOptions.callback(res?.data?.list || [], res?.data || {});

  // 返回结果
  return {
    ...res,
    tableProps: {
      ...res.tableProps,
      pagination: usePagination ? { ...res.tableProps.pagination, showQuickJumper: true, showSizeChanger: true } : false,
    },
    getData: res.search.submit,
  };
}

export default useTable;