import type { Metadata } from "next";
import { notFound } from "next/navigation";
import { PageHeader } from "@/components/page-header";
import { BudgetView } from "@/features/budgets/components/budget-view";
import { IncomePlanSection } from "@/features/budgets/components/income-plan";
import { getIncomePlan } from "@/features/budgets/plan";
import { getBudget } from "@/features/budgets/service";
import { tr } from "@/i18n/tr";
import { requireActiveHousehold } from "@/lib/dal";
import { budgetMonthSchema } from "@/shared/schemas/budget";

export const metadata: Metadata = { title: tr.budget.title };

/** /butce?ay=YYYY-MM — aylık bütçe (varsayılan: içinde bulunulan bütçe ayı). */
export default async function BudgetPage({ searchParams }: PageProps<"/butce">) {
  const { user, household } = await requireActiveHousehold("viewer");
  const ay = budgetMonthSchema.safeParse((await searchParams).ay);
  const data = await getBudget(user.id, household.id, ay.success ? ay.data : undefined);
  if (!data) notFound();
  const income = await getIncomePlan(user.id, household.id, data.month);
  if (!income) notFound();
  const monthLabel = new Intl.DateTimeFormat("tr-TR", {
    month: "long",
    year: "numeric",
    timeZone: "Europe/Istanbul",
  }).format(new Date(`${data.month}-15T12:00:00+03:00`));
  return (
    <>
      <PageHeader title={tr.budget.title} description={tr.budget.description} />
      <BudgetView key={data.month} data={data} />
      <IncomePlanSection
        key={`income-${data.month}`}
        month={data.month}
        monthLabel={monthLabel}
        income={income}
        limitMinor={data.totals.limitMinor}
        forecastMinor={data.totals.forecastMinor}
        hasBudget={data.hasBudget}
        canWrite={data.canWrite}
      />
    </>
  );
}