fix: use IMGW Hybrid for current weather

app/api/imgw-current/route.ts

@@ -0,0 +1,37 @@
+import { NextResponse } from "next/server";
+
+const IMGW_HYBRID_URL = "https://meteo.imgw.pl/api/v1/forecast/fcapi";
+// This browser token is published by the official meteo.imgw.pl frontend.
+const IMGW_HYBRID_TOKEN = "p4DXKjsYadfBV21TYrDk";
+
+function parseCoordinate(value: string | null, min: number, max: number) {
+  if (!value?.trim()) return null;
+  const coordinate = Number(value);
+  return Number.isFinite(coordinate) && coordinate >= min && coordinate <= max ? coordinate : null;
+}
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const latitude = parseCoordinate(searchParams.get("latitude"), -90, 90);
+  const longitude = parseCoordinate(searchParams.get("longitude"), -180, 180);
+  if (latitude === null || longitude === null) {
+    return NextResponse.json({ error: "Invalid coordinates." }, { status: 400 });
+  }
+
+  const params = new URLSearchParams({
+    token: IMGW_HYBRID_TOKEN,
+    lat: String(latitude),
+    lon: String(longitude),
+    m: "hybrid",
+  });
+
+  try {
+    const response = await fetch(`${IMGW_HYBRID_URL}?${params}`, { next: { revalidate: 120 } });
+    if (!response.ok) return NextResponse.json({ error: "IMGW Hybrid service is unavailable." }, { status: 502 });
+    return NextResponse.json(await response.json(), {
+      headers: { "Cache-Control": "public, s-maxage=120, stale-while-revalidate=300" },
+    });
+  } catch {
+    return NextResponse.json({ error: "IMGW Hybrid service is unavailable." }, { status: 502 });
+  }
+}