109 lines
4.2 KiB
TypeScript
109 lines
4.2 KiB
TypeScript
export const dynamic = 'force-dynamic';
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import { NextResponse } from "next/server";
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// Convert WMO weather codes to wttr.in-compatible codes for emoji mapping
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function wmoToWttrCode(wmo: number): string {
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if (wmo === 0) return "113"; // Clear sunny
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if (wmo === 1) return "116"; // Mainly clear
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if (wmo === 2) return "116"; // Partly cloudy
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if (wmo === 3) return "122"; // Overcast
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if (wmo >= 45 && wmo <= 48) return "143"; // Fog
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if (wmo >= 51 && wmo <= 55) return "185"; // Drizzle
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if (wmo >= 56 && wmo <= 57) return "281"; // Freezing drizzle
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if (wmo >= 61 && wmo <= 65) return "305"; // Rain
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if (wmo >= 66 && wmo <= 67) return "281"; // Freezing rain
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if (wmo >= 71 && wmo <= 77) return "227"; // Snow
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if (wmo >= 80 && wmo <= 82) return "305"; // Rain showers
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if (wmo >= 85 && wmo <= 86) return "260"; // Snow showers
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if (wmo === 95) return "200"; // Thunderstorm
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if (wmo >= 96 && wmo <= 99) return "389"; // Thunderstorm with hail
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return "116";
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}
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function wmoToDesc(wmo: number): string {
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if (wmo === 0) return "Ясно";
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if (wmo === 1) return "Преим. ясно";
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if (wmo === 2) return "Переменная облачность";
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if (wmo === 3) return "Пасмурно";
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if (wmo === 45 || wmo === 48) return "Туман";
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if (wmo >= 51 && wmo <= 55) return "Морось";
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if (wmo >= 61 && wmo <= 65) return "Дождь";
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if (wmo >= 71 && wmo <= 77) return "Снег";
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if (wmo >= 80 && wmo <= 82) return "Ливень";
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if (wmo >= 85 && wmo <= 86) return "Снегопад";
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if (wmo === 95) return "Гроза";
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if (wmo >= 96 && wmo <= 99) return "Гроза с градом";
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return "Облачно";
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}
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export async function GET(req: Request) {
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try {
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const { searchParams } = new URL(req.url);
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const lat = searchParams.get("lat") || "59.9343";
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const lon = searchParams.get("lon") || "30.3351";
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const controller = new AbortController();
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const timeout = setTimeout(() => controller.abort(), 8000);
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const url = "https://api.open-meteo.com/v1/forecast?" + new URLSearchParams({
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latitude: lat,
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longitude: lon,
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current: "temperature_2m,relative_humidity_2m,apparent_temperature,weather_code,wind_speed_10m",
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daily: "weather_code,temperature_2m_max,temperature_2m_min,apparent_temperature_max,apparent_temperature_min,precipitation_probability_max,wind_speed_10m_max,relative_humidity_2m_max",
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timezone: "Europe/Moscow",
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forecast_days: "7",
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});
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const res = await fetch(url, {
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signal: controller.signal,
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cache: "no-store",
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headers: { "Accept": "application/json" },
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});
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clearTimeout(timeout);
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if (!res.ok) throw new Error(`Open-Meteo responded ${res.status}`);
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const data = await res.json();
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const current = data.current;
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const daily = data.daily;
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const forecast = (daily.time || []).map((date: string, i: number) => ({
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date,
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maxTemp: String(Math.round(daily.temperature_2m_max[i])),
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minTemp: String(Math.round(daily.temperature_2m_min[i])),
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desc: wmoToDesc(daily.weather_code[i]),
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weatherCode: wmoToWttrCode(daily.weather_code[i]),
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feelsLikeMax: String(Math.round(daily.apparent_temperature_max?.[i] ?? 0)),
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feelsLikeMin: String(Math.round(daily.apparent_temperature_min?.[i] ?? 0)),
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precipProb: String(daily.precipitation_probability_max?.[i] ?? 0),
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windSpeed: String(Math.round((daily.wind_speed_10m_max?.[i] ?? 0) / 3.6)),
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humidity: String(daily.relative_humidity_2m_max?.[i] ?? 0),
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}));
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return NextResponse.json({
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temp: String(Math.round(current.temperature_2m)),
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feelsLike: String(Math.round(current.apparent_temperature)),
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humidity: String(current.relative_humidity_2m),
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desc: wmoToDesc(current.weather_code),
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weatherCode: wmoToWttrCode(current.weather_code),
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windSpeed: String(Math.round(current.wind_speed_10m / 3.6)),
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forecast,
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});
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} catch (e) {
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console.error("Weather fetch error:", e);
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return NextResponse.json(
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{
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temp: "—",
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feelsLike: "—",
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humidity: "—",
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desc: "Нет данных",
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weatherCode: "116",
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windSpeed: "—",
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forecast: [],
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error: String(e),
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},
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{ status: 200 }
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);
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}
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}
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