import { exportTransactions } from "@/features/transactions/service";
import { tr } from "@/i18n/tr";
import { getHouseholdContext } from "@/lib/dal";
import { csvMoney, toCsv } from "@/shared/csv";
import { todayIstanbul } from "@/shared/dates";
import { formatDate } from "@/shared/format";
import { transactionFilterSchema } from "@/shared/schemas/transaction";

/** GET /islemler/disa-aktar?…filtreler → CSV (listedeki filtrelerle, sayfalama yok). */
export async function GET(request: Request) {
  const ctx = await getHouseholdContext();
  if (!ctx?.household) return new Response(tr.common.unauthorized, { status: 401 });
  const params = Object.fromEntries(new URL(request.url).searchParams);
  const filters = transactionFilterSchema.parse(params);
  const rows = await exportTransactions(ctx.user.id, ctx.household.id, filters);
  if (!rows) return new Response(tr.common.unauthorized, { status: 403 });

  const t = tr.transactions;
  const csv = toCsv(
    t.csv.header,
    rows.map((r) => [
      r.no,
      formatDate(`${r.date}T12:00:00+03:00`),
      t.types[r.type],
      t.statuses[r.status],
      r.account,
      r.toAccount,
      r.category,
      r.payee,
      r.description,
      r.note,
      r.tags,
      csvMoney(r.amountMinor),
      r.createdBy,
    ]),
  );
  return new Response(csv, {
    headers: {
      "Content-Type": "text/csv; charset=utf-8",
      "Content-Disposition": `attachment; filename="${t.csv.filename(todayIstanbul())}"`,
      "Cache-Control": "no-store",
    },
  });
}