init

Author: sagarkarira

.eslintrc.json

@@ -0,0 +1,29 @@
+{
+    "env": {
+        "browser": true,
+        "commonjs": true,
+        "es6": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "sourceType": "module"
+    },
+    "rules": {
+        "indent": [
+            "error",
+            2
+        ],
+        "linebreak-style": [
+            "error",
+            "unix"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "always"
+        ]
+    }
+}

bin/index.js

@@ -0,0 +1,7 @@
+#!/usr/bin/env node
+
+const { getCompleteTable } = require('../lib/corona');
+
+getCompleteTable()
+  .then(console.log)
+  .catch(console.error);

lib/corona.js

@@ -0,0 +1,130 @@
+const Table = require('cli-table3');
+const axios = require('axios');
+const _ = require('lodash');
+const chalk = require('chalk');
+const emojiFlags = require('emoji-flags');
+const h = require('humanize-number');
+
+function getConfirmed(confirmed) {
+  return {
+    content: chalk.blueBright(h(confirmed)),
+    hAlign: 'right',
+  };
+}
+
+function getRecoverd(recovered) {
+  return {
+    content: chalk.yellowBright(h(recovered)),
+    hAlign: 'right',
+  };
+}
+
+function getDeaths(deaths) {
+  return {
+    content: chalk.grey(h(deaths)),
+    hAlign: 'right',
+  }
+}
+
+function getActive(confirmed, recovered, deaths) {
+  return {
+    content: h(confirmed - recovered - deaths),
+    hAlign: 'right'
+  }
+}
+
+function getMortalityRate(deaths, confirmed, average = null) {
+  const mortalityRate = ((deaths / confirmed) * 100).toFixed(2);
+  return chalk.redBright(mortalityRate);
+}
+
+function getRecoveredRate(recovered, confirmed, average = null) {
+  const recoveredRate = ((recovered / confirmed) * 100).toFixed(2);
+  return chalk.greenBright(recoveredRate);
+}
+
+function getEmoji(countryCode) {
+  if (countryCode && emojiFlags.countryCode(countryCode)) {
+    return emojiFlags.countryCode(countryCode).emoji;
+  }
+  return '';
+}
+
+function getDataByCountry(confirmed, deaths, recovered) {
+  const countryMap = {};
+  const confirmedMap = _.keyBy(confirmed.locations, (i) => i.country + i.province);
+  const recoveredMap = _.keyBy(recovered.locations, (i) => i.country + i.province);
+  const deathsMap = _.keyBy(deaths.locations, (i) => i.country + i.province);
+  confirmed.locations.forEach(obj => {
+    const countryName = obj.country;
+    const provinceName = obj.province;
+    const mapKey = countryName + provinceName;
+    if (!countryMap[countryName]) {
+      countryMap[countryName] = {
+        country: countryName,
+        countryCode: obj.country_code,
+        confirmed: confirmedMap[mapKey].latest,
+        recovered: recoveredMap[mapKey].latest,
+        deaths: deathsMap[mapKey].latest,
+      };
+    } else {
+      countryMap[countryName].confirmed += confirmedMap[mapKey].latest;
+      countryMap[countryName].recovered += recoveredMap[mapKey].latest;
+      countryMap[countryName].deaths += deathsMap[mapKey].latest;
+    }
+  });
+  const countryArr = Object.keys(countryMap).map(key => countryMap[key]);
+  return _.sortBy(countryArr, (o) => -o.confirmed)
+}
+
+exports.getCompleteTable = async () => {
+  const head = [
+    '',
+    'Country',
+    'Confirmed ✅',
+    'Recovered 😃',
+    'Deaths 😞',
+    'Active 😷',
+    'Mortality %',
+    'Recovered %',
+    'Flag 🏳'
+  ];
+  const table = new Table({
+    head,
+    chars: { 'top': '═' , 'top-mid': '╤' , 'top-left': '╔' , 'top-right': '╗'
+         , 'bottom': '═' , 'bottom-mid': '╧' , 'bottom-left': '╚' , 'bottom-right': '╝'
+         , 'left': '║' , 'left-mid': '╟' , 'mid': '─' , 'mid-mid': '┼'
+         , 'right': '║' , 'right-mid': '╢' , 'middle': '│' }
+  });
+  const result = await axios('https://coronavirus-tracker-api.herokuapp.com/all');
+  const { latest, confirmed, deaths, recovered } = result.data;
+  const countryData = getDataByCountry(confirmed, deaths, recovered)
+  table.push({
+    '': [
+      'World',
+      getConfirmed(latest.confirmed),
+      getRecoverd(latest.recovered),
+      getDeaths(latest.deaths),
+      getActive(latest.confirmed, latest.recovered, latest.deaths),
+      getMortalityRate(latest.deaths, latest.confirmed),
+      getRecoveredRate(latest.recovered, latest.confirmed),
+      '🌎'
+    ]
+  })
+  let rank = 1;
+  countryData.forEach(cd => {
+    const countryEmoji = getEmoji(cd.countryCode);
+    const values = [
+      chalk.cyanBright(cd.country),
+      getConfirmed(cd.confirmed),
+      getRecoverd(cd.recovered),
+      getDeaths(cd.deaths),
+      getActive(cd.confirmed, cd.recovered, cd.deaths),
+      getMortalityRate(cd.deaths, cd.confirmed),
+      getRecoveredRate(cd.deaths, cd.confirmed),
+      getEmoji(cd.countryCode),
+    ]
+    table.push({ [rank++]: values })
+  });
+  return table.toString();
+}