add weather display

src/lib/weather.js

@@ -0,0 +1,88 @@
+import { connectToDatabase } from './mongodb'
+
+const WEATHER_API_KEY = process.env.OPENWEATHER_API_KEY
+const LAT = 47.06149235737582
+const LON = 28.86683069635403
+
+const WEATHER_ICONS = {
+  '01d': '☀️', // clear sky
+  '01n': '🌙', // clear sky night
+  '02d': '⛅', // few clouds
+  '02n': '☁️', // few clouds night
+  '03d': '☁️', // scattered clouds
+  '03n': '☁️', // scattered clouds night
+  '04d': '☁️', // broken clouds
+  '04n': '☁️', // broken clouds night
+  '09d': '🌧️', // shower rain
+  '09n': '🌧️', // shower rain night
+  '10d': '🌦️', // rain
+  '10n': '🌧️', // rain night
+  '11d': '⛈️', // thunderstorm
+  '11n': '⛈️', // thunderstorm night
+  '13d': '🌨️', // snow
+  '13n': '🌨️', // snow night
+  '50d': '🌫️', // mist
+  '50n': '🌫️', // mist night
+}
+
+export async function fetchWeatherData() {
+  try {
+    const response = await fetch(
+      `https://api.openweathermap.org/data/2.5/forecast?lat=${LAT}&lon=${LON}&appid=${WEATHER_API_KEY}&units=metric`
+    )
+    const data = await response.json()
+    
+    // Process the data to get daily forecasts
+    const dailyForecasts = data.list.reduce((acc, item) => {
+      const date = new Date(item.dt * 1000)
+      const day = date.toISOString().split('T')[0]
+      
+      if (!acc[day]) {
+        acc[day] = {
+          date: day,
+          temp_min: item.main.temp_min,
+          temp_max: item.main.temp_max,
+          humidity: item.main.humidity,
+          wind_speed: item.wind.speed,
+          icon: item.weather[0].icon,
+          description: item.weather[0].description,
+          timestamp: date
+        }
+      } else {
+        acc[day].temp_min = Math.min(acc[day].temp_min, item.main.temp_min)
+        acc[day].temp_max = Math.max(acc[day].temp_max, item.main.temp_max)
+      }
+      
+      return acc
+    }, {})
+
+    return Object.values(dailyForecasts)
+  } catch (error) {
+    console.error('Error fetching weather data:', error)
+    throw error
+  }
+}
+
+export async function getWeatherData() {
+  const { db } = await connectToDatabase()
+  const collection = db.collection('weather_data')
+  
+  // Get the latest weather data
+  const latestData = await collection.findOne({}, { sort: { timestamp: -1 } })
+  
+  // If no data exists or data is older than 2 hours, fetch new data
+  if (!latestData || (Date.now() - latestData.timestamp.getTime() > 2 * 60 * 60 * 1000)) {
+    const newData = await fetchWeatherData()
+    await collection.insertOne({
+      forecasts: newData,
+      timestamp: new Date()
+    })
+    return newData
+  }
+  
+  return latestData.forecasts
+}
+
+export function getWeatherIcon(iconCode) {
+  return WEATHER_ICONS[iconCode] || '❓'
+}