Fetch local weather from Dark Sky API.
https://wthr.ml/
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113 lines
4.2 KiB
113 lines
4.2 KiB
const log = console.log
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const fs = require('fs')
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const {table, getBorderCharacters} = require('table')
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// const argv = require('yargs').argv
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const TABLE_CONFIG = {
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// columns: {
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// 0: { alignment: 'center' },
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// 1: { alignment: 'center' },
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// 2: { alignment: 'center' },
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// },
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border: getBorderCharacters(`ramac`)
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}
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const HIDE_PRECIP_LESS_THAN = 10
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// const CREDIT_MSG = "Powered by Dark Sky: https://darksky.net/poweredby/"
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// const CREDIT_MSG = "https://darksky.net/poweredby • https://smol.gq/wthr-src\n"
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const CREDIT_MSG = "darksky.net/poweredby • smol.gq/wthr-src\n\n"
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// https://medium.com/@osiolabs/read-write-json-files-with-node-js-92d03cc82824
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const jsonReader = (filePath, cb) => {
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fs.readFile(filePath, (err, fileData) => {
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if (err) {
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return cb && cb(err)
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}
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try {
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const object = JSON.parse(fileData)
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return cb && cb(null, object)
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} catch(err) {
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return cb && cb(err)
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}
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})
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}
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const round5 = x => { return Math.ceil(x / 5) * 5 }
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const getWeatherTable = (jsonFile, loc, orientation) => {
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return new Promise((resolve, reject) => {
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jsonReader(jsonFile, (err, weatherInfo) => {
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if (err) {
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reject(err)
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}
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let output = loc + '\n'
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// log(loc)
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weatherInfo['hourly']['data'][0] = weatherInfo['currently']
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if (orientation == 'v') {
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const infoList = [['H', '°C', 'R','%P']]
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for (let i = 0; i < 12; i++) {
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const hourInfo = weatherInfo['hourly']['data'][i]
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const date = new Date(hourInfo['time'] * 1000)
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const precipProbability = round5(hourInfo['precipProbability'] * 100)
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const precipText = ((precipProbability < HIDE_PRECIP_LESS_THAN)
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? '' : precipProbability)
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infoList.push([
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date.getHours(),
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Math.floor(hourInfo['apparentTemperature']),
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((hourInfo['summary'].includes('Rain')) ? 'Y' : ''),
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precipText,
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])
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}
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output += table(infoList, TABLE_CONFIG)
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// log(table(infoList, TABLE_CONFIG))
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} else {
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// horizontal
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const hoursList = ['H']
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const tempsList = ['°C']
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const rainList = ['R']
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const precipList = ['%P']
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for (let i = 0; i < 16; i += 2) {
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const hourInfo = weatherInfo['hourly']['data'][i]
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const date = new Date(hourInfo['time'] * 1000)
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hoursList.push(date.getHours())
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tempsList.push(Math.floor(hourInfo['apparentTemperature']))
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rainList.push((hourInfo['summary'].includes('Rain')) ? 'Y' : '')
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const precipProbability = round5(hourInfo['precipProbability'] * 100)
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precipList.push((precipProbability < HIDE_PRECIP_LESS_THAN)
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? '' : precipProbability)
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}
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const maxTempIndex = tempsList.indexOf(Math.max(...tempsList.slice(1)))
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const minTempIndex = tempsList.indexOf(Math.min(...tempsList.slice(1)))
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tempsList[maxTempIndex] = `${tempsList[maxTempIndex]}+`
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tempsList[minTempIndex] = `${tempsList[minTempIndex]}-`
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output += table([hoursList, tempsList, rainList, precipList],
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TABLE_CONFIG)
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// log(table([hoursList, tempsList, rainList, precipList], TABLE_CONFIG))
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}
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resolve(output)
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})
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})
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}
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const formatTimeUnit = unit => { return ((unit < 10) ? '0' : '') + unit }
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const getTablePromises = [
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getWeatherTable('./markham.json', 'Markham', 'h'),
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getWeatherTable('./markham.json', 'Markham', 'v'),
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getWeatherTable('./toronto.json', 'Toronto', 'h'),
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getWeatherTable('./toronto.json', 'Toronto', 'v'),
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]
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Promise.all(getTablePromises).then(tables => {
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const mText = tables[0]
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const mvText = tables[1]
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const tText = tables[2]
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const tvText = tables[3]
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const writeErrorHandler = error => { if (error) { throw error } }
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fs.writeFile('mt.txt', CREDIT_MSG + mText + '\n' + tText, writeErrorHandler)
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fs.writeFile('mtv.txt', CREDIT_MSG + mvText + '\n' + tvText, writeErrorHandler)
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fs.writeFile('m.txt', CREDIT_MSG + mText, writeErrorHandler)
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fs.writeFile('mv.txt', CREDIT_MSG + mvText, writeErrorHandler)
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fs.writeFile('t.txt', CREDIT_MSG + tText, writeErrorHandler)
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fs.writeFile('tv.txt', CREDIT_MSG + tvText, writeErrorHandler)
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})
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