import React, { useState } from 'react';
import { useDispatch } from 'react-redux';
import { useNavigate } from 'react-router-dom';
import {
  Table, TableRow, TableCell, TableHead, TableBody,
} from '@mui/material';
import LoginIcon from '@mui/icons-material/Login';
import makeStyles from '@mui/styles/makeStyles';
import { useCatch, useEffectAsync } from '../reactHelper';
import { formatBoolean } from '../common/util/formatter';
import { useTranslation } from '../common/components/LocalizationProvider';
import PageLayout from '../common/components/PageLayout';
import SettingsMenu from './components/SettingsMenu';
import CollectionFab from './components/CollectionFab';
import CollectionActions from './components/CollectionActions';
import TableShimmer from '../common/components/TableShimmer';
import { useAdministrator } from '../common/util/permissions';
import { sessionActions } from '../store';

const useStyles = makeStyles((theme) => ({
  columnAction: {
    width: '1%',
    paddingRight: theme.spacing(1),
  },
}));

const UsersPage = () => {
  const classes = useStyles();
  const dispatch = useDispatch();
  const navigate = useNavigate();
  const t = useTranslation();

  const admin = useAdministrator();

  const [timestamp, setTimestamp] = useState(Date.now());
  const [items, setItems] = useState([]);
  const [loading, setLoading] = useState(false);

  const handleLogin = useCatch(async (userId) => {
    const response = await fetch(`/api/session/${userId}`);
    if (response.ok) {
      const user = await response.json();
      dispatch(sessionActions.updateUser(user));
      navigate('/');
    } else {
      throw Error(await response.text());
    }
  });

  const loginAction = {
    title: t('loginLogin'),
    icon: (<LoginIcon fontSize="small" />),
    handler: handleLogin,
  };

  useEffectAsync(async () => {
    setLoading(true);
    try {
      const response = await fetch('/api/users');
      if (response.ok) {
        setItems(await response.json());
      } else {
        throw Error(await response.text());
      }
    } finally {
      setLoading(false);
    }
  }, [timestamp]);

  return (
    <PageLayout menu={<SettingsMenu />} breadcrumbs={['settingsTitle', 'settingsUsers']}>
      <Table>
        <TableHead>
          <TableRow>
            <TableCell>{t('sharedName')}</TableCell>
            <TableCell>{t('userEmail')}</TableCell>
            <TableCell>{t('userAdmin')}</TableCell>
            <TableCell>{t('sharedDisabled')}</TableCell>
            <TableCell className={classes.columnAction} />
          </TableRow>
        </TableHead>
        <TableBody>
          {!loading ? items.map((item) => (
            <TableRow key={item.id}>
              <TableCell>{item.name}</TableCell>
              <TableCell>{item.email}</TableCell>
              <TableCell>{formatBoolean(item.administrator, t)}</TableCell>
              <TableCell>{formatBoolean(item.disabled, t)}</TableCell>
              <TableCell className={classes.columnAction} padding="none">
                <CollectionActions
                  itemId={item.id}
                  editPath="/settings/user"
                  endpoint="users"
                  setTimestamp={setTimestamp}
                  customAction={admin ? loginAction : null}
                />
              </TableCell>
            </TableRow>
          )) : (<TableShimmer columns={5} endAction />)}
        </TableBody>
      </Table>
      <CollectionFab editPath="/settings/user" />
    </PageLayout>
  );
};

export default UsersPage;