Wire Buy button on Schedule details page (Angular flight-actions parity)

src/features/schedule/components/ScheduleDetailsPage.tsx

@@ -9,8 +9,10 @@
  */
 
 import type { FC } from "react";
+import { useCallback } from "react";
 import { Link } from "@modern-js/runtime/router";
 import { useTranslation } from "@/i18n/provider.js";
+import { localeToLanguage, normalizeLocaleParam, DEFAULT_LANGUAGE } from "@/i18n/resolver.js";
 import { FlightCard } from "@/ui/flights/FlightCard.js";
 import { FlightListSkeleton } from "@/ui/flights/FlightListSkeleton.js";
 import { SeoHead } from "@/ui/seo/SeoHead.js";
@@ -78,6 +80,31 @@ export const ScheduleDetailsPage: FC<ScheduleDetailsPageProps> = ({
 
   const pageTabs = <PageTabs viewType="schedule" />;
   const scheduleHref = `/${locale}/schedule`;
+
+  // `Купить` button — opens Aeroflot's booking flow in a new tab.
+  // Mirrors BoardDetailsHeader's BuyTicketButton / Schedule search page.
+  const language =
+    localeToLanguage(normalizeLocaleParam(locale) ?? "ru-ru") ?? DEFAULT_LANGUAGE;
+  const handleBuy = useCallback(
+    (flight: ISimpleFlight) => {
+      const legs = flight.routeType === "Direct" ? [flight.leg] : flight.legs;
+      const firstLeg = legs[0];
+      const lastLeg = legs[legs.length - 1];
+      if (!firstLeg || !lastLeg) return;
+      const dep = firstLeg.departure.scheduled.airportCode;
+      const arr = lastLeg.arrival.scheduled.airportCode;
+      const depUtc = firstLeg.departure.times.scheduledDeparture.utc;
+      const depDate = new Date(depUtc);
+      const yyyy = depDate.getFullYear().toString();
+      const mm = (depDate.getMonth() + 1).toString().padStart(2, "0");
+      const dd = depDate.getDate().toString().padStart(2, "0");
+      const url = `https://www.aeroflot.ru/sb/app/${language}-${language}#/search?adults=1&cabin=economy&children=0&infants=0&routes=${dep}.${yyyy}${mm}${dd}.${arr}&autosearch=Y`;
+      if (typeof window !== "undefined") {
+        window.open(url, "_blank", "noopener,noreferrer");
+      }
+    },
+    [language],
+  );
   const backLink = (
     <Link
       to={scheduleHref}
@@ -148,7 +175,10 @@ export const ScheduleDetailsPage: FC<ScheduleDetailsPageProps> = ({
   // body for each, separated by a transit caption — close to Angular's
   // `schedule-flight-details-view` for the connecting case.
   const renderBody = (flight: typeof flights[number]) => (
-    <ScheduleFlightBody flight={flight as unknown as ISimpleFlight} />
+    <ScheduleFlightBody
+      flight={flight as unknown as ISimpleFlight}
+      onBuy={() => handleBuy(flight as unknown as ISimpleFlight)}
+    />
   );
 
   return (