import { useMemo } from 'react';

interface IRest {
  data: {
    filter: string | number;
    filterName: string;
    type: string | number;
    [key: string]: any;
  }[];
  xField: string;
  yField: string;
  [key: string]: any;
}
export default (
  value: (string | number)[],
  rest: IRest,
  onlyPercent: boolean,
) => {
  // 是否能多选过滤条件
  const multiple = useMemo(() => {
    if (rest.data?.length) {
      const data = rest.data;
      return !(data[0].filter && data[0].type);
    }
    return true;
  }, [rest.data]);
  // 过滤后的数据
  const data = useMemo(() => {
    if (!rest.data) return [];
    return rest.data.filter(item => {
      return value.includes(item.filter);
    });
  }, [rest.data, value]);
  // 默认的配置
  const config = useMemo(() => {
    if (multiple) {
      rest.seriesField = 'filterName';
    }
    if (onlyPercent) {
      rest.yAxis = {
        ...rest.yAxis,
        label: { formatter: (v: number | string) => Number(v).mul(100) + '%' },
        min: 0,
      };
    }
    if (rest.annotations && value) {
      rest.annotations = rest.annotations.filter((item: any) => {
        return value.includes(item.position.filter);
      });
    }
    return rest;
  }, [onlyPercent, value]);
  // 生成默认的tooltip格式函数
  const tooltipFormatter = useMemo(() => {
    const seriesField = rest.seriesField;
    if (seriesField === 'filterName') {
      return {
        tooltip: {
          fields: [seriesField, rest.yField, rest.xField, 'percent'],
          formatter: (data: any) => {
            const isPercent = !!data.percent;
            return {
              name: data.filterName,
              value: isPercent
                ? Number(data[rest.yField]).mul(100) + '%'
                : Number(data[rest.yField])._toThousands(),
            };
          },
        },
      };
    } else if (!config.tooltip) {
      return {
        tooltip: {
          fields: [seriesField, rest.yField, rest.xField, 'percent'],
          formatter: (data: any) => {
            const isPercent = !!data.percent;
            return {
              name: data[seriesField],
              value: isPercent
                ? Number(data[rest.yField]).mul(100) + '%'
                : Number(data[rest.yField])._toThousands(),
            };
          },
        },
      };
    }
    return {};
  }, [config]);

  return {
    multiple,
    data,
    config,
    tooltipFormatter,
  };
};