Added fundamentals for v2 rule set intro.

src/util/constants.js

@@ -1 +1,38 @@
+import moment from "moment";
+
 export const DateFormat = "MM/DD/yyyy";
+
+export function ChangeOfRuleSet({
+  prevDateMoment = moment(),
+  newDateMoment = moment(),
+}) {
+  console.log("🚀 ~ file: constants.js ~ line 9 ~ newDateMoment", newDateMoment)
+  console.log("🚀 ~ file: constants.js ~ line 9 ~ prevDateMoment", prevDateMoment)
+
+  
+  //Define the rule periods.
+  const V1 = {
+    title: "V1",
+    range: [moment("2010-01-01"), moment("2023-04-01")],
+  };
+  const V2 = {
+    title: "V2",
+    range: [moment("2023-04-01"), moment("2040-01-01")],
+  }; //Arbitrarily long away date.
+
+  const RuleSets = [V1, V2];
+
+  const prevRuleSet = RuleSets.find(
+    (r) =>
+      prevDateMoment.isSameOrAfter(r.range[0]) &&
+      prevDateMoment.isSameOrBefore(r.range[1])
+  );
+
+  const newRuleSet = RuleSets.find(
+    (r) =>
+      newDateMoment.isSameOrAfter(r.range[0]) &&
+      newDateMoment.isSameOrBefore(r.range[1])
+  );
+
+  return prevRuleSet?.title !== newRuleSet?.title;
+}