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app/api/sun-times/route.ts

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+import { NextResponse } from "next/server";
+
+export interface SunTimes {
+  date: string;
+  sunrise: string;
+  sunset: string;
+}
+
+// Calcul approximatif du lever/coucher du soleil pour Fakarava
+// Coordonnées de Fakarava (Rotoava) : -16.3167, -145.6167
+// En production, utiliser une API comme https://sunrise-sunset.org/api
+const calculateSunTimes = (date: Date, lat: number = -16.3167, lng: number = -145.6167): SunTimes => {
+  // Calcul simplifié (formule approximative)
+  const dayOfYear = Math.floor((date.getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000);
+  const declination = 23.45 * Math.sin((360 * (284 + dayOfYear) / 365) * Math.PI / 180);
+  const hourAngle = Math.acos(-Math.tan(lat * Math.PI / 180) * Math.tan(declination * Math.PI / 180)) * 180 / Math.PI;
+  
+  const sunriseHour = 12 - hourAngle / 15 - (lng / 15);
+  const sunsetHour = 12 + hourAngle / 15 - (lng / 15);
+  
+  const formatTime = (hour: number) => {
+    const h = Math.floor(hour);
+    const m = Math.floor((hour - h) * 60);
+    return `${h.toString().padStart(2, "0")}:${m.toString().padStart(2, "0")}`;
+  };
+  
+  return {
+    date: date.toISOString().split("T")[0],
+    sunrise: formatTime(sunriseHour),
+    sunset: formatTime(sunsetHour),
+  };
+};
+
+export async function GET() {
+  const today = new Date();
+  const sunTimes = calculateSunTimes(today);
+  
+  return NextResponse.json(sunTimes);
+}
+