forked from ChrisChrome/weather-bot
138 lines
3.5 KiB
JavaScript
138 lines
3.5 KiB
JavaScript
const geolib = require("geolib");
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// Use OSM API to get coordinates https://nominatim.openstreetmap.org/search?q=search+query&format=json&limit=1
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const getCoordinates = async (location) => {
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return new Promise((resolve, reject) => {
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// Make location url friendly
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location = encodeURIComponent(location);
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const url = `https://nominatim.openstreetmap.org/search?q=${location}&format=json&limit=1`;
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// use custom useragent (discord-iem-bot, chris@chrischro.me)
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const options = {
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headers: {
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'User-Agent': 'Discord-IEM-Bot/1.0 (chris@chrischro.me)',
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},
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};
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// Make request
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fetch(url, options)
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.then(response => response.json())
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.then(data => {
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if (data.length > 0) {
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resolve({
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lat: data[0].lat,
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lon: data[0].lon,
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});
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} else {
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reject('Location not found');
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}
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})
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.catch(err => {
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reject(err);
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});
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})
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};
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const getForecast = async (lat, lon) => {
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return new Promise((resolve, reject) => {
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const url = `https://api.weather.gov/points/${lat},${lon}`;
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// use same custom ua
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const options = {
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headers: {
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'User-Agent': 'Discord-IEM-Bot/1.0 (chris@chrischro.me)',
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},
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};
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// Make request
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fetch(url, options)
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.then(response => response.json())
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.then(data => {
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if (data.properties?.forecast) {
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fetch(data.properties.forecast)
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.then(response => response.json())
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.then(data2 => {
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data2.properties.relativeLocation = data.properties.relativeLocation;
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resolve(data2);
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})
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.catch(err => {
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reject(err);
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});
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} else {
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reject('Forecast not found');
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}
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})
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.catch(err => {
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reject(err);
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});
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})
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};
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const getWeatherBySearch = async (search) => {
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return new Promise((resolve, reject) => {
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getCoordinates(search)
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.then(coords => {
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getForecast(coords.lat, coords.lon)
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.then(data => {
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resolve(data);
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})
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.catch(err => {
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reject(err);
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});
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})
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.catch(err => {
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reject(err);
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});
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})
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};
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const generateDiscordEmbeds = (forecastData, numOfDays) => {
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// Take the first 7 periods and make them into embeds
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const embeds = [];
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if (!numOfDays) numOfDays = 1;
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for (let i = 0; i < numOfDays; i++) {
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const period = forecastData.properties.periods[i];
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if (period.icon?.startsWith("/")) {
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period.icon = `https://api.weather.gov${period.icon}`
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}
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const embed = {
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title: `${period.name} in ${forecastData.properties.relativeLocation.properties.city} ${forecastData.properties.relativeLocation.properties.state}`,
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description: `Valid <t:${new Date(period.startTime)/1000}:f> - <t:${new Date(period.endTime)/1000}:f>\n${period.detailedForecast}`,
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timestamp: new Date(period.startTime),
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thumbnail: {
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url: period.icon,
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},
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fields: [
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{
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name: 'Temperature',
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value: `${period.temperature}°F`,
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inline: true
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},
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{
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name: 'Wind',
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value: `${period.windDirection}@${period.windSpeed}`,
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inline: true
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},
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{
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name: 'Precipitation',
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value: period.probabilityOfPrecipitation?.value ? period.probabilityOfPrecipitation?.value + '%' : '0%',
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inline: true
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},
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{
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name: 'Humidity',
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value: period.relativeHumidity?.value ? period.relativeHumidity.value + '%' : "0%",
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}
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],
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footer: {
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text: `Data provided by the National Weather Service · Elevation ${forecastData.properties.elevation.value}m`
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}
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};
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embeds.push(embed);
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}
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return embeds;
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}
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module.exports = {
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getCoordinates,
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getForecast,
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getWeatherBySearch,
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generateDiscordEmbeds
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}; |