Files
openmonetis/components/month-picker/month-navigation.tsx
2026-03-06 16:39:49 +00:00

94 lines
2.6 KiB
TypeScript

"use client";
import { useRouter } from "next/navigation";
import { useEffect, useMemo, useTransition } from "react";
import { Card } from "@/components/ui/card";
import { getNextPeriod, getPreviousPeriod } from "@/lib/utils/period";
import LoadingSpinner from "./loading-spinner";
import NavigationButton from "./nav-button";
import ReturnButton from "./return-button";
import { useMonthPeriod } from "./use-month-period";
export default function MonthNavigation() {
const { period, currentMonth, currentYear, defaultPeriod, buildHref } =
useMonthPeriod();
const router = useRouter();
const [isPending, startTransition] = useTransition();
const currentMonthLabel = useMemo(
() =>
`${currentMonth.charAt(0).toUpperCase()}${currentMonth.slice(1)} ${currentYear}`,
[currentMonth, currentYear],
);
const prevTarget = useMemo(
() => buildHref(getPreviousPeriod(period)),
[buildHref, period],
);
const nextTarget = useMemo(
() => buildHref(getNextPeriod(period)),
[buildHref, period],
);
const returnTarget = useMemo(
() => buildHref(defaultPeriod),
[buildHref, defaultPeriod],
);
const isDifferentFromCurrent = period !== defaultPeriod;
// Prefetch otimizado: apenas meses adjacentes (M-1, M+1) e mês atual
// Isso melhora a performance da navegação sem sobrecarregar o cliente
useEffect(() => {
// Prefetch do mês anterior e próximo para navegação instantânea
router.prefetch(prevTarget);
router.prefetch(nextTarget);
// Prefetch do mês atual se não estivermos nele
if (isDifferentFromCurrent) {
router.prefetch(returnTarget);
}
}, [router, prevTarget, nextTarget, returnTarget, isDifferentFromCurrent]);
const handleNavigate = (href: string) => {
startTransition(() => {
router.replace(href, { scroll: false });
});
};
return (
<Card className="flex w-full flex-row bg-card text-card-foreground p-4 sticky top-16 z-10">
<div className="flex items-center gap-1">
<NavigationButton
direction="left"
disabled={isPending}
onClick={() => handleNavigate(prevTarget)}
/>
<div className="flex items-center">
<div
className="mx-1 space-x-1 capitalize font-semibold"
aria-current={!isDifferentFromCurrent ? "date" : undefined}
aria-label={`Período selecionado: ${currentMonthLabel}`}
>
<span>{currentMonthLabel}</span>
</div>
{isPending && <LoadingSpinner />}
</div>
<NavigationButton
direction="right"
disabled={isPending}
onClick={() => handleNavigate(nextTarget)}
/>
</div>
{isDifferentFromCurrent && (
<ReturnButton
disabled={isPending}
onClick={() => handleNavigate(returnTarget)}
/>
)}
</Card>
);
}