All files / libs/lti/components/src/lib/documents/drawers DocumentDrawer.tsx

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import { css } from '@emotion/react';
import styled from '@emotion/styled';
import { memo, useCallback, useEffect, useMemo, type ReactNode } from 'react';
import { useIntl } from 'react-intl';
import { match, P } from 'ts-pattern';

import { Drawer, Group, Skeleton, Stack, Typography, useSnackbars } from '@allshares/studio-design-system';
import { type LtiGrantDocument, type LtiPlanDocument } from '@amalia/lti/types';

import { DocumentSignatureRequiredBadge } from '../badges/DocumentSignatureRequiredBadge';
import { DocumentSignedBadge } from '../badges/DocumentSignedBadge';

const PdfIframe = styled.iframe`
  border: none;
  flex: 1;
  width: 100%;
`;

type DocumentDrawerProps = Partial<Pick<LtiGrantDocument, 'signedAt'>> &
  Pick<LtiPlanDocument, 'isSignatureRequired' | 'name'> & {
    readonly documentBlob?: Blob;

    readonly isOpen: boolean;
    readonly onClose: () => void;

    readonly actions?: ReactNode;
  };

export const DocumentDrawer = memo(function DocumentDrawer({
  isSignatureRequired,
  name,
  signedAt,
  documentBlob,

  actions,

  isOpen,
  onClose,
}: DocumentDrawerProps) {
  const { formatMessage } = useIntl();
  const { snackError } = useSnackbars();

  const documentUrl = useMemo(
    () => (documentBlob ? URL.createObjectURL(new Blob([documentBlob], { type: 'application/pdf' })) : null),
    [documentBlob],
  );

  useEffect(
    () => () => {
      if (documentUrl) {
        URL.revokeObjectURL(documentUrl);
      }
    },
    [documentUrl],
  );

  const handleIframeError = useCallback(() => {
    snackError(formatMessage({ defaultMessage: 'Unable to load document.' }));
  }, [formatMessage, snackError]);

  return (
    <Drawer
      isOpen={isOpen}
      css={(theme) => css`
        width: 1000px;
        background-color: ${theme.ds.colors.gray[0]};
        display: flex;
        flex-direction: column;

        [data-color-scheme='dark'] & {
          background-color: ${theme.ds.colors.dark[800]};
        }
      `}
      onClose={onClose}
    >
      <Drawer.Header
        css={(theme) => css`
          padding: 24px 32px;
          flex-shrink: 0;

          [data-color-scheme='dark'] & {
            border-bottom-color: ${theme.ds.colors.dark[700]};
          }
        `}
      >
        <Group
          align="center"
          gap={16}
        >
          <Typography variant="heading3Bold">{name}</Typography>

          {match({ signedAt, isSignatureRequired })
            .with({ signedAt: P.nonNullable }, (props) => <DocumentSignedBadge signedAt={props.signedAt} />)
            .with({ isSignatureRequired: true }, () => <DocumentSignatureRequiredBadge />)
            .otherwise(() => null)}
        </Group>
      </Drawer.Header>

      <Stack
        gap={16}
        css={css`
          flex: 1;
          padding: 24px 32px;
          min-height: 0;
        `}
      >
        {documentUrl ? (
          <PdfIframe
            src={documentUrl}
            title={name}
            onError={handleIframeError}
          />
        ) : (
          <Skeleton
            css={css`
              flex: 1;
            `}
          />
        )}
      </Stack>

      <Stack
        align="flex-end"
        css={css`
          border-top: ${actions ? `1px solid var(--ds-border-color-100)` : 'none'};
          padding: 16px 32px;
          flex-shrink: 0;
          min-height: 50px;
        `}
      >
        {actions}
      </Stack>
    </Drawer>
  );
});