refactor: make frontend a pure presentation layer fetching from backend API

Server components now fetch composed data from the backend instead of
directly querying SQLite and external APIs. Removes better-sqlite3
dependency from the frontend entirely.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/page.tsx

@@ -1,12 +1,7 @@
 import { HomePageClient } from "@/components/HomePageClient";
-import { PARKS } from "@/lib/parks";
-import { openDb, getDateRange } from "@/lib/db";
-import { getTodayLocal, isWithinOperatingWindow, getOperatingStatus } from "@/lib/env";
-import { fetchLiveRides } from "@/lib/scrapers/queuetimes";
-import { fetchToday } from "@/lib/scrapers/sixflags";
-import { QUEUE_TIMES_IDS } from "@/lib/queue-times-map";
-import { getCoasterSet, hasCoasterData } from "@/lib/coaster-data";
-import type { DayData } from "@/lib/db";
+import { getTodayLocal } from "@/lib/env";
+
+const BACKEND_URL = process.env.BACKEND_URL ?? "http://localhost:3001";
 
 interface PageProps {
   searchParams: Promise<{ week?: string }>;
@@ -26,121 +21,14 @@ function getWeekStart(param: string | undefined): string {
   return d.toISOString().slice(0, 10);
 }
 
-function getWeekDates(sundayIso: string): string[] {
-  return Array.from({ length: 7 }, (_, i) => {
-    const d = new Date(sundayIso + "T00:00:00");
-    d.setDate(d.getDate() + i);
-    return d.toISOString().slice(0, 10);
-  });
-}
-
-function getCurrentWeekStart(): string {
-  const todayIso = getTodayLocal();
-  const d = new Date(todayIso + "T00:00:00");
-  d.setDate(d.getDate() - d.getDay());
-  return d.toISOString().slice(0, 10);
-}
-
 export default async function HomePage({ searchParams }: PageProps) {
   const params = await searchParams;
   const weekStart = getWeekStart(params.week);
-  const weekDates = getWeekDates(weekStart);
-  const endDate = weekDates[6];
-  const today = getTodayLocal();
-  const isCurrentWeek = weekStart === getCurrentWeekStart();
 
-  const db = openDb();
-  const data = getDateRange(db, weekStart, endDate);
+  const data = await fetch(
+    `${BACKEND_URL}/api/calendar/week?start=${weekStart}`,
+    { next: { revalidate: 120 } },
+  ).then((r) => r.json());
 
-  // Merge live today data from the Six Flags API (dateless endpoint, 5-min ISR cache).
-  // This ensures weather delays, early closures, and hour changes surface within 5 minutes
-  // without waiting for the next scheduled scrape. Only fetched when viewing the current week.
-  if (weekDates.includes(today)) {
-    const todayResults = await Promise.all(
-      PARKS.map(async (p) => {
-        const live = await fetchToday(p.apiId, 300); // 5-min ISR cache
-        return live ? { parkId: p.id, live } : null;
-      })
-    );
-    for (const result of todayResults) {
-      if (!result) continue;
-      const { parkId, live } = result;
-      if (!data[parkId]) data[parkId] = {};
-      data[parkId][today] = {
-        isOpen: live.isOpen,
-        hoursLabel: live.hoursLabel ?? null,
-        specialType: live.specialType ?? null,
-      } satisfies DayData;
-    }
-  }
-
-  db.close();
-
-  const scrapedCount = Object.values(data).reduce(
-    (sum, parkData) => sum + Object.keys(parkData).length,
-    0
-  );
-
-  const coasterDataAvailable = hasCoasterData();
-
-  let rideCounts: Record<string, number> = {};
-  let coasterCounts: Record<string, number> = {};
-  let closingParkIds: string[] = [];
-  let openParkIds: string[] = [];
-  let weatherDelayParkIds: string[] = [];
-  if (weekDates.includes(today)) {
-    // Parks within operating hours right now (for open dot — independent of ride counts)
-    const openTodayParks = PARKS.filter((p) => {
-      const dayData = data[p.id]?.[today];
-      if (!dayData?.isOpen || !dayData.hoursLabel) return false;
-      return isWithinOperatingWindow(dayData.hoursLabel, p.timezone);
-    });
-    openParkIds = openTodayParks.map((p) => p.id);
-    closingParkIds = openTodayParks
-      .filter((p) => {
-        const dayData = data[p.id]?.[today];
-        return dayData?.hoursLabel
-          ? getOperatingStatus(dayData.hoursLabel, p.timezone) === "closing"
-          : false;
-      })
-      .map((p) => p.id);
-    // Only fetch ride counts for parks that have queue-times coverage
-    const trackedParks = openTodayParks.filter((p) => QUEUE_TIMES_IDS[p.id]);
-    const results = await Promise.all(
-      trackedParks.map(async (p) => {
-        const coasterSet = getCoasterSet(p.id);
-        const result = await fetchLiveRides(QUEUE_TIMES_IDS[p.id], coasterSet, 300);
-        const rideCount = result ? result.rides.filter((r) => r.isOpen).length : null;
-        const coasterCount = result ? result.rides.filter((r) => r.isOpen && r.isCoaster).length : 0;
-        return { id: p.id, rideCount, coasterCount };
-      })
-    );
-    // Parks with queue-times coverage but 0 open rides = likely weather delay
-    weatherDelayParkIds = results
-      .filter(({ rideCount }) => rideCount === 0)
-      .map(({ id }) => id);
-    rideCounts = Object.fromEntries(
-      results.filter(({ rideCount }) => rideCount != null && rideCount > 0).map(({ id, rideCount }) => [id, rideCount!])
-    );
-    coasterCounts = Object.fromEntries(
-      results.filter(({ coasterCount }) => coasterCount > 0).map(({ id, coasterCount }) => [id, coasterCount])
-    );
-  }
-
-  return (
-    <HomePageClient
-      weekStart={weekStart}
-      weekDates={weekDates}
-      today={today}
-      isCurrentWeek={isCurrentWeek}
-      data={data}
-      rideCounts={rideCounts}
-      coasterCounts={coasterCounts}
-      openParkIds={openParkIds}
-      closingParkIds={closingParkIds}
-      weatherDelayParkIds={weatherDelayParkIds}
-      hasCoasterData={coasterDataAvailable}
-      scrapedCount={scrapedCount}
-    />
-  );
+  return <HomePageClient {...data} />;
 }