Wrote validation functions and getter to grab appropriate validation function

package.json

@@ -28,6 +28,7 @@
     "express-handlebars": "^4.0.4",
     "googleapis": "^32.0.0",
     "graphql": "^0.13.2",
+    "moment": "^2.27.0",
     "morgan": "^1.8.0",
     "mz": "^2.7.0",
     "node-fetch": "^2.3.0",

src/config.js

@@ -1,7 +1,13 @@
 import { timemap } from './lib'
 
 export default {
-  gsheets: [],
+  gsheets: [
+    {
+      name: 'us2020',
+      id: '1I_pgyTQJlIorTIEHBxw1mM1STn-SrIi66FKYxut61iM',
+      tabs: timemap.default
+    }
+  ],
   xlsx: [
     {
       name: 'timemap_data',

src/lib/util.js

@@ -1,4 +1,4 @@
-import R from 'ramda'
+import R from 'ramda';
 
 /* eslint-disable */
 String.prototype.replaceAll = function (search, replacement) {

src/lib/validation.js

@@ -0,0 +1,35 @@
+import moment from 'moment';
+
+const DATE_FORMAT = "MM/DD/YYYY";
+const TIME_REGEX = "^([01]\d|2[0-3]):?([0-5]\d)$"
+
+export const validateLongitude = value => {
+  return isFinite(value) && Math.abs(value) <= 180;
+}
+
+export const validateLatitude = value => {
+  return isFinite(lat) && Math.abs(lat) <= 90;
+} 
+
+export const validateDate = date => {
+  return moment(date, DATE_FORMAT, true).isValid();
+}
+
+export const validateTime = time => {
+  return TIME_REGEX.test(time);
+}
+
+
+export const getColumnValidator = colName => {
+  switch(colName) {
+    case 'longitue':
+      return validateLongitude;
+    case 'latitude':
+      return validateLatitude;
+    case 'date':
+      return validateDate;
+    case 'time':
+      return validateTime;
+    default: () => return true;
+  }
+}