import { email } from "https://esm.town/v/std/email"; /////////////////////// // USER-DEFINED VALUES // Uses lat/long of San Francisco as an example const latitude = Number(Deno.env.get("WEATHER_LATITUDE")) || 37.7749; const longitude = Number(Deno.env.get("WEATHER_LONGITUDE")) || -122.4194; const temperatureUnit = Deno.env.get("WEATHER_TEMPERATURE_UNIT") || "fahrenheit"; const windSpeedUnit = Deno.env.get("WEATHER_WIND_SPEED_UNIT") || "mph"; const precipitationUnit = Deno.env.get("WEATHER_PRECIPITATION_UNIT") || "inch"; const timezone = Deno.env.get("WEATHER_TIMEZONE") || "America/Los_Angeles"; // Activity weather criteria definitions using Open-Meteo API daily weather keys // All daily weather keys listed at https://open-meteo.com/en/docs const activities = { bbqTime: { temperature_2m_max: { min: 61, max: 77 }, wind_speed_10m_max: { max: 12 }, }, beachDay: { temperature_2m_max: { min: 72, max: 90 }, wind_speed_10m_max: { max: 12 }, }, }; // END USER-DEFINED VALUES /////////////////////// // Helper function to get day of week function getDayOfWeek(dateString: string): string { const days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]; return days[new Date(dateString).getDay()]; } // Helper function to format date as MM/DD function formatDate(dateString: string): string { const date = new Date(dateString); return `${date.getMonth() + 1}/${date.getDate()}`; } // Dynamically extract unique metrics from activities function extractUniqueMetrics(activityDefinitions: typeof activities): string[] { const metricsSet = new Set(); Object.values(activityDefinitions).forEach(activity => { Object.keys(activity).forEach(metric => metricsSet.add(metric)); }); return Array.from(metricsSet); } export default async function() { try { // Dynamically generate metrics list const metrics = extractUniqueMetrics(activities); // Construct API URL with dynamic metrics const forecastUrl = new URL("https://api.open-meteo.com/v1/forecast"); forecastUrl.searchParams.set("latitude", latitude.toString()); forecastUrl.searchParams.set("longitude", longitude.toString()); forecastUrl.searchParams.set("daily", metrics.join(",")); forecastUrl.searchParams.set("temperature_unit", temperatureUnit); forecastUrl.searchParams.set("wind_speed_unit", windSpeedUnit); forecastUrl.searchParams.set("precipitation_unit", precipitationUnit); forecastUrl.searchParams.set("timezone", timezone); forecastUrl.searchParams.set("forecast_days", "7"); const forecastResponse = await fetch(forecastUrl.toString()); if (!forecastResponse.ok) { throw new Error(`Weather API request failed: ${forecastResponse.statusText}`); } const forecast = await forecastResponse.json(); // Validate that all requested metrics exist in the response metrics.forEach(metric => { if (!forecast.daily[metric]) { throw new Error(`Requested metric ${metric} not found in API response`); } }); // Process ALL days, not just suitable ones const dailyActivities = forecast.daily.time.map((date, index) => { const matchedActivities = Object.entries(activities).reduce((matches, [activityName, criteria]) => { // Check ALL criteria for the activity const meetsCriteria = Object.entries(criteria).every(([key, { min, max }]) => { const value = forecast.daily[key][index]; return (min === undefined || value >= min) && (max === undefined || value <= max); }); if (meetsCriteria) { matches.push(activityName); } return matches; }, []); return { date, dayOfWeek: getDayOfWeek(date), formattedDate: formatDate(date), activities: matchedActivities.length > 0 ? matchedActivities : ["n/a"], }; }); // Always send email with all 7 days await email({ subject: "🌞 Your Activity-Friendly Weather Forecast", html: `

Weather Activities Forecast

${ dailyActivities.map(day => ` `).join("") }

${day.dayOfWeek} (${day.formattedDate})

${day.activities.join(", ")}

View Val Source

`, text: dailyActivities.map(day => `${day.dayOfWeek} (${day.formattedDate}) - ${day.activities.join(", ")}`).join( "\n", ), }); } catch (error) { console.error("Weather forecast error:", error); // Send error notification email await email({ subject: "❌ Weather Forecast Error", text: `An error occurred while fetching the weather forecast: ${error.message}`, html: `

Weather Forecast Error

An error occurred while fetching the weather forecast:

${error.message}

View Val Source

`, }); } }

mattwd7