plane/web/components/issues/issue-layouts/calendar/week-header.tsx

import { observer } from "mobx-react-lite";

// constants
import { DAYS_LIST } from "@/constants/calendar";

type Props = {
  isLoading: boolean;
  showWeekends: boolean;
};

export const CalendarWeekHeader: React.FC<Props> = observer((props) => {
  const { isLoading, showWeekends } = props;

  return (
    <div
      className={`relative sticky top-0 z-[1] grid md:divide-x-[0.5px] divide-custom-border-200 text-sm font-medium ${
        showWeekends ? "grid-cols-7" : "grid-cols-5"
      }`}
    >
      {isLoading && (
        <div className="absolute h-[1.5px] w-3/4 animate-[bar-loader_2s_linear_infinite] bg-custom-primary-100" />
      )}
      {Object.values(DAYS_LIST).map((day) => {
        if (!showWeekends && (day.shortTitle === "Sat" || day.shortTitle === "Sun")) return null;

        return (
          <div
            key={day.shortTitle}
            className="flex h-11 items-center justify-center md:justify-end bg-custom-background-90 px-4"
          >
            {day.shortTitle}
          </div>
        );
      })}
    </div>
  );
});