plane/web/components/issues/issue-layouts/list/headers/assignee.tsx

import { FC } from "react";
import { observer } from "mobx-react-lite";
// components
import { HeaderGroupByCard } from "./group-by-card";
import { Avatar } from "components/ui";

export interface IAssigneesHeader {
  column_id: string;
  column_value: any;
  issues_count: number;
}

export const Icon = ({ user }: any) => <Avatar user={user} height="22px" width="22px" fontSize="12px" />;

export const AssigneesHeader: FC<IAssigneesHeader> = observer((props) => {
  const { column_id, column_value, issues_count } = props;

  const assignee = column_value ?? null;

  return (
    <>
      {assignee && (
        <HeaderGroupByCard
          icon={<Icon user={assignee?.member} />}
          title={assignee?.member?.display_name || ""}
          count={issues_count}
        />
      )}
    </>
  );
});