refactor(date-converter): improved ux and layout

src/tools/date-time-converter/date-time-converter.models.ts

@@ -0,0 +1,46 @@
+import _ from 'lodash';
+
+export {
+  isISO8601DateTimeString,
+  isISO9075DateString,
+  isRFC3339DateString,
+  isRFC7231DateString,
+  isUnixTimestamp,
+  isTimestamp,
+  isUTCDateString,
+  isMongoObjectId,
+};
+
+const ISO8601_REGEX =
+  /^([+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([.,]\d+(?!:))?)?(\17[0-5]\d([.,]\d+)?)?([zZ]|([+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/;
+const ISO9075_REGEX =
+  /^([0-9]{4})-([0-9]{2})-([0-9]{2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})(\.[0-9]{1,6})?(([+-])([0-9]{2}):([0-9]{2})|Z)?$/;
+
+const RFC3339_REGEX =
+  /^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(\.[0-9]{1,9})?(([+-])([0-9]{2}):([0-9]{2})|Z)$/;
+
+const RFC7231_REGEX = /^[A-Za-z]{3},\s[0-9]{2}\s[A-Za-z]{3}\s[0-9]{4}\s[0-9]{2}:[0-9]{2}:[0-9]{2}\sGMT$/;
+
+function createRegexMatcher(regex: RegExp) {
+  return (date?: string) => !_.isNil(date) && regex.test(date);
+}
+
+const isISO8601DateTimeString = createRegexMatcher(ISO8601_REGEX);
+const isISO9075DateString = createRegexMatcher(ISO9075_REGEX);
+const isRFC3339DateString = createRegexMatcher(RFC3339_REGEX);
+const isRFC7231DateString = createRegexMatcher(RFC7231_REGEX);
+const isUnixTimestamp = createRegexMatcher(/^[0-9]{1,10}$/);
+const isTimestamp = createRegexMatcher(/^[0-9]{1,13}$/);
+const isMongoObjectId = createRegexMatcher(/^[0-9a-fA-F]{24}$/);
+
+function isUTCDateString(date?: string) {
+  if (_.isNil(date)) {
+    return false;
+  }
+
+  try {
+    return new Date(date).toUTCString() === date;
+  } catch (_ignored) {
+    return false;
+  }
+}