Feature/improve color assignment with annualized performance in treemap chart (#3657)

* Improve color assignment

* Update changelog

libs/common/src/lib/calculation-helper.ts

@@ -1,6 +1,19 @@
 import { Big } from 'big.js';
+import {
+  endOfDay,
+  endOfYear,
+  max,
+  startOfMonth,
+  startOfWeek,
+  startOfYear,
+  subDays,
+  subYears
+} from 'date-fns';
 import { isNumber } from 'lodash';
 
+import { resetHours } from './helper';
+import { DateRange } from './types';
+
 export function getAnnualizedPerformancePercent({
   daysInMarket,
   netPerformancePercentage
@@ -18,3 +31,61 @@ export function getAnnualizedPerformancePercent({
 
   return new Big(0);
 }
+
+export function getIntervalFromDateRange(
+  aDateRange: DateRange,
+  portfolioStart = new Date(0)
+) {
+  let endDate = endOfDay(new Date(Date.now()));
+  let startDate = portfolioStart;
+
+  switch (aDateRange) {
+    case '1d':
+      startDate = max([
+        startDate,
+        subDays(resetHours(new Date(Date.now())), 1)
+      ]);
+      break;
+    case 'mtd':
+      startDate = max([
+        startDate,
+        subDays(startOfMonth(resetHours(new Date(Date.now()))), 1)
+      ]);
+      break;
+    case 'wtd':
+      startDate = max([
+        startDate,
+        subDays(
+          startOfWeek(resetHours(new Date(Date.now())), { weekStartsOn: 1 }),
+          1
+        )
+      ]);
+      break;
+    case 'ytd':
+      startDate = max([
+        startDate,
+        subDays(startOfYear(resetHours(new Date(Date.now()))), 1)
+      ]);
+      break;
+    case '1y':
+      startDate = max([
+        startDate,
+        subYears(resetHours(new Date(Date.now())), 1)
+      ]);
+      break;
+    case '5y':
+      startDate = max([
+        startDate,
+        subYears(resetHours(new Date(Date.now())), 5)
+      ]);
+      break;
+    case 'max':
+      break;
+    default:
+      // '2024', '2023', '2022', etc.
+      endDate = endOfYear(new Date(aDateRange));
+      startDate = max([startDate, new Date(aDateRange)]);
+  }
+
+  return { endDate, startDate };
+}