refactor(ui): add isDateSet util function

Signed-off-by: zacaj <zacaj@zacaj.com>

ui/src/common/DateField.jsx

@@ -1,10 +1,11 @@
 import React from 'react'
+import { isDateSet } from '../utils/validations'
 import { DateField as RADateField } from 'react-admin'
 
 export const DateField = (props) => {
   const { record, source } = props
   const value = record?.[source]
-  if (value === '0001-01-01T00:00:00Z' || value === null) return null
+  if (!isDateSet(value)) return null
   return <RADateField {...props} />
 }
 

ui/src/common/LoveButton.jsx

@@ -7,6 +7,7 @@ import { makeStyles } from '@material-ui/core/styles'
 import { useToggleLove } from './useToggleLove'
 import { useRecordContext } from 'react-admin'
 import config from '../config'
+import { isDateSet } from '../utils/validations'
 
 const useStyles = makeStyles({
   love: {
@@ -49,7 +50,7 @@ export const LoveButton = ({
       disabled={disabled || loading || record.missing}
       className={classes.love}
       title={
-        record.starredAt && record.starredAt !== '0001-01-01T00:00:00Z'
+        isDateSet(record.starredAt)
           ? new Date(record.starredAt).toLocaleString()
           : undefined
       }

ui/src/common/RatingField.jsx

@@ -2,6 +2,7 @@ import React, { useCallback } from 'react'
 import PropTypes from 'prop-types'
 import Rating from '@material-ui/lab/Rating'
 import { makeStyles } from '@material-ui/core/styles'
+import { isDateSet } from '../utils/validations'
 import StarBorderIcon from '@material-ui/icons/StarBorder'
 import clsx from 'clsx'
 import { useRating } from './useRating'
@@ -48,7 +49,7 @@ export const RatingField = ({
     <span
       onClick={(e) => stopPropagation(e)}
       title={
-        record.ratedAt && record.ratedAt !== '0001-01-01T00:00:00Z'
+        isDateSet(record.ratedAt)
           ? new Date(record.ratedAt).toLocaleString()
           : undefined
       }

ui/src/utils/validations.js

@@ -10,3 +10,16 @@ export const urlValidate = (value) => {
     return 'ra.validation.url'
   }
 }
+
+export function isDateSet(date) {
+  if (!date) {
+    return false
+  }
+  if (typeof date === 'string') {
+    return date !== '0001-01-01T00:00:00Z'
+  }
+  if (date instanceof Date) {
+    return date.toISOString() !== '0001-01-01T00:00:00Z'
+  }
+  return !!date
+}