import React, { useState } from 'react';
import { FormattedMessage } from 'react-intl';
import MetricsTable from './MetricsTable';
import Tag from 'components/common/Tag';
import DropDown from 'components/common/DropDown';
import { eventTypeFilter } from 'lib/filters';
import usePageQuery from 'hooks/usePageQuery';
import styles from './EventsTable.module.css';

const EVENT_FILTER_DEFAULT = {
  value: 'all',
  label: <FormattedMessage id="label.all-events" defaultMessage="All events" />,
};

export default function EventsTable({ websiteId, ...props }) {
  const [eventType, setEventType] = useState(EVENT_FILTER_DEFAULT.value);
  const [eventTypes, setEventTypes] = useState([]);
  const { resolve, router } = usePageQuery();

  const dropDownOptions = [EVENT_FILTER_DEFAULT, ...eventTypes.map(t => ({ value: t, label: t }))];

  function handleDataLoad(data) {
    setEventTypes([...new Set(data.map(({ x }) => x.split('\t')[0]))]);
    props.onDataLoad?.(data);
  }

  function handleChange(value) {
    router.replace(resolve({ eventType: value === 'all' ? undefined : value }));
    setEventType(value);
  }

  return (
    <>
      {eventTypes?.length > 1 && (
        <div className={styles.filter}>
          <DropDown value={eventType} options={dropDownOptions} onChange={handleChange} />
        </div>
      )}
      <MetricsTable
        {...props}
        title={<FormattedMessage id="metrics.events" defaultMessage="Events" />}
        type="event"
        metric={<FormattedMessage id="metrics.actions" defaultMessage="Actions" />}
        websiteId={websiteId}
        dataFilter={eventTypeFilter}
        filterOptions={eventType === EVENT_FILTER_DEFAULT.value ? [] : [eventType]}
        renderLabel={({ x }) => <Label value={x} />}
        onDataLoad={handleDataLoad}
      />
    </>
  );
}

const Label = ({ value }) => {
  const [event, label] = value.split('\t');
  return (
    <>
      <Tag>{event}</Tag>
      {label}
    </>
  );
};