import React, { useState } from 'react';
import {
  TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton,
} from '@material-ui/core';
import MoreVertIcon from '@material-ui/icons/MoreVert';
import { useEffectAsync } from '../reactHelper';
import EditCollectionView from './components/EditCollectionView';
import { prefixString } from '../common/util/stringUtils';
import { formatBoolean } from '../common/util/formatter';
import { useTranslation } from '../common/components/LocalizationProvider';
import PageLayout from '../common/components/PageLayout';
import SettingsMenu from './components/SettingsMenu';

const useStyles = makeStyles((theme) => ({
  columnAction: {
    width: theme.spacing(1),
    padding: theme.spacing(0, 1),
  },
}));

const NotificationsView = ({ updateTimestamp, onMenuClick }) => {
  const classes = useStyles();
  const t = useTranslation();

  const [items, setItems] = useState([]);

  useEffectAsync(async () => {
    const response = await fetch('/api/notifications');
    if (response.ok) {
      setItems(await response.json());
    } else {
      throw Error(await response.text());
    }
  }, [updateTimestamp]);

  const formatList = (prefix, value) => {
    if (value) {
      return value
        .split(/[, ]+/)
        .filter(Boolean)
        .map((it) => t(prefixString(prefix, it)))
        .join(', ');
    }
    return '';
  };

  return (
    <TableContainer>
      <Table>
        <TableHead>
          <TableRow>
            <TableCell className={classes.columnAction} />
            <TableCell>{t('notificationType')}</TableCell>
            <TableCell>{t('notificationAlways')}</TableCell>
            <TableCell>{t('sharedAlarms')}</TableCell>
            <TableCell>{t('notificationNotificators')}</TableCell>
          </TableRow>
        </TableHead>
        <TableBody>
          {items.map((item) => (
            <TableRow key={item.id}>
              <TableCell className={classes.columnAction} padding="none">
                <IconButton size="small" onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
                  <MoreVertIcon />
                </IconButton>
              </TableCell>
              <TableCell>{t(prefixString('event', item.type))}</TableCell>
              <TableCell>{formatBoolean(item.always, t)}</TableCell>
              <TableCell>{formatList('alarm', item.attributes.alarms)}</TableCell>
              <TableCell>{formatList('notificator', item.notificators)}</TableCell>
            </TableRow>
          ))}
        </TableBody>
      </Table>
    </TableContainer>
  );
};

const NotificationsPage = () => (
  <PageLayout menu={<SettingsMenu />} breadcrumbs={['settingsTitle', 'sharedNotifications']}>
    <EditCollectionView content={NotificationsView} editPath="/settings/notification" endpoint="notifications" />
  </PageLayout>
);

export default NotificationsPage;