import * as React from 'react';
import { useLazyQuery, useMutation } from '@apollo/client';
import Card from '@mui/material/Card';
import Box from '@mui/material/Box';
import Stack from '@mui/material/Stack';
import CircularProgress from '@mui/material/CircularProgress';
import CardActionArea from '@mui/material/CardActionArea';
import MoreHorizIcon from '@mui/icons-material/MoreHoriz';
import CheckCircleIcon from '@mui/icons-material/CheckCircle';
import ErrorIcon from '@mui/icons-material/Error';
import { useSnackbar } from 'notistack';
import { DateTime } from 'luxon';

import type { IConnection } from '@automatisch/types';
import { DELETE_CONNECTION } from 'graphql/mutations/delete-connection';
import { TEST_CONNECTION } from 'graphql/queries/test-connection';
import ConnectionContextMenu from 'components/AppConnectionContextMenu';
import useFormatMessage from 'hooks/useFormatMessage';
import { CardContent, Typography } from './style';

type AppConnectionRowProps = {
  connection: IConnection;
}

const countTranslation = (value: React.ReactNode) => (
  <>
    <Typography variant="body1">
      {value}
    </Typography>
    <br />
  </>
);

function AppConnectionRow(props: AppConnectionRowProps): React.ReactElement {
  const { enqueueSnackbar } = useSnackbar();
  const [verificationVisible, setVerificationVisible] = React.useState(false);
  const [testConnection, { called: testCalled, loading: testLoading }] = useLazyQuery(TEST_CONNECTION, {
    fetchPolicy: 'network-only',
    onCompleted: () => { setTimeout(() => setVerificationVisible(false), 3000); },
    onError: () => { setTimeout(() => setVerificationVisible(false), 3000); },
  });
  const [deleteConnection] = useMutation(DELETE_CONNECTION);

  const formatMessage = useFormatMessage();
  const { id, key, formattedData, verified, createdAt, flowCount } = props.connection;

  const contextButtonRef = React.useRef<SVGSVGElement | null>(null);
  const [anchorEl, setAnchorEl] = React.useState<SVGSVGElement | null>(null);

  const handleClose = () => {
    setAnchorEl(null);
  };

  const onContextMenuClick = () => setAnchorEl(contextButtonRef.current);
  const onContextMenuAction = React.useCallback(async (event, action: { [key: string]: string }) => {
    if (action.type === 'delete') {
      await deleteConnection({
        variables: { input: { id } },
        update: (cache) => {
          const connectionCacheId = cache.identify({
            __typename: 'Connection',
            id,
          });

          cache.evict({
            id: connectionCacheId,
          });
        }
      });

      enqueueSnackbar(formatMessage('connection.deletedMessage'), { variant: 'success' });
    } else if (action.type === 'test') {
      setVerificationVisible(true);
      testConnection({ variables: { id } });
    }
  }, [deleteConnection, id, testConnection, formatMessage, enqueueSnackbar]);

  const relativeCreatedAt = DateTime.fromMillis(parseInt(createdAt, 10)).toRelative();

  return (
    <>
      <Card sx={{ my: 2 }}>
        <CardActionArea onClick={onContextMenuClick}>
          <CardContent>
            <Stack
              justifyContent="center"
              alignItems="flex-start"
              spacing={1}
            >
              <Typography variant="h6">
                {formattedData?.screenName}
              </Typography>

              <Typography variant="caption">
                {formatMessage('connection.addedAt', { datetime: relativeCreatedAt })}
              </Typography>
            </Stack>

            <Box>
              <Stack direction="row" alignItems="center" spacing={1}>
                {verificationVisible && testCalled && testLoading && (
                  <>
                    <CircularProgress size={16} />
                    <Typography variant="caption">{formatMessage('connection.testing')}</Typography>
                  </>
                )}
                {verificationVisible && testCalled && !testLoading && verified && (
                  <>
                    <CheckCircleIcon fontSize="small" color="success" />
                    <Typography variant="caption">{formatMessage('connection.testSuccessful')}</Typography>
                  </>
                )}
                {verificationVisible && testCalled && !testLoading && !verified && (
                  <>
                    <ErrorIcon fontSize="small" color="error" />
                    <Typography variant="caption">{formatMessage('connection.testFailed')}</Typography>
                  </>
                )}
              </Stack>
            </Box>

            <Box sx={{ px: 2 }}>
              <Typography variant="caption" color="textSecondary" sx={{ display: ['none', 'inline-block'] }}>
                {formatMessage('connection.flowCount', { count: countTranslation(flowCount) })}
              </Typography>
            </Box>

            <Box>
              <MoreHorizIcon ref={contextButtonRef} />
            </Box>
          </CardContent>
        </CardActionArea>
      </Card>

      {anchorEl && <ConnectionContextMenu
        appKey={key}
        connectionId={id}
        onClose={handleClose}
        onMenuItemClick={onContextMenuAction}
        anchorEl={anchorEl}
      />}
    </>
  );
}

export default AppConnectionRow;