feat: dateformat and timezone customization (#506)

packages/lib/constants/date-formats.ts

@@ -0,0 +1,71 @@
+import { DateTime } from 'luxon';
+
+import { DEFAULT_DOCUMENT_TIME_ZONE } from './time-zones';
+
+export const DEFAULT_DOCUMENT_DATE_FORMAT = 'yyyy-MM-dd hh:mm a';
+
+export const DATE_FORMATS = [
+  {
+    key: 'YYYYMMDD',
+    label: 'YYYY-MM-DD',
+    value: DEFAULT_DOCUMENT_DATE_FORMAT,
+  },
+  {
+    key: 'DDMMYYYY',
+    label: 'DD/MM/YYYY',
+    value: 'dd/MM/yyyy hh:mm a',
+  },
+  {
+    key: 'MMDDYYYY',
+    label: 'MM/DD/YYYY',
+    value: 'MM/dd/yyyy hh:mm a',
+  },
+  {
+    key: 'YYYYMMDDHHmm',
+    label: 'YYYY-MM-DD HH:mm',
+    value: 'yyyy-MM-dd HH:mm',
+  },
+  {
+    key: 'YYMMDD',
+    label: 'YY-MM-DD',
+    value: 'yy-MM-dd hh:mm a',
+  },
+  {
+    key: 'YYYYMMDDhhmmss',
+    label: 'YYYY-MM-DD HH:mm:ss',
+    value: 'yyyy-MM-dd HH:mm:ss',
+  },
+  {
+    key: 'MonthDateYear',
+    label: 'Month Date, Year',
+    value: 'MMMM dd, yyyy hh:mm a',
+  },
+  {
+    key: 'DayMonthYear',
+    label: 'Day, Month Year',
+    value: 'EEEE, MMMM dd, yyyy hh:mm a',
+  },
+  {
+    key: 'ISO8601',
+    label: 'ISO 8601',
+    value: "yyyy-MM-dd'T'HH:mm:ss.SSSXXX",
+  },
+];
+
+export const convertToLocalSystemFormat = (
+  customText: string,
+  dateFormat: string | null = DEFAULT_DOCUMENT_DATE_FORMAT,
+  timeZone: string | null = DEFAULT_DOCUMENT_TIME_ZONE,
+): string => {
+  const parsedDate = DateTime.fromFormat(customText, dateFormat ?? DEFAULT_DOCUMENT_DATE_FORMAT, {
+    zone: timeZone ?? DEFAULT_DOCUMENT_TIME_ZONE,
+  });
+
+  if (!parsedDate.isValid) {
+    return 'Invalid date';
+  }
+
+  const formattedDate = parsedDate.toLocal().toFormat(dateFormat ?? DEFAULT_DOCUMENT_DATE_FORMAT);
+
+  return formattedDate;
+};

packages/lib/constants/time-zones.ts

@@ -0,0 +1,44 @@
+import { rawTimeZones, timeZonesNames } from '@vvo/tzdb';
+
+export const TIME_ZONE_DATA = rawTimeZones;
+
+export const DEFAULT_DOCUMENT_TIME_ZONE = 'Etc/UTC';
+
+export type TimeZone = {
+  name: string;
+  rawOffsetInMinutes: number;
+};
+
+export const minutesToHours = (minutes: number): string => {
+  const hours = Math.abs(Math.floor(minutes / 60));
+  const min = Math.abs(minutes % 60);
+  const sign = minutes >= 0 ? '+' : '-';
+
+  return `${sign}${String(hours).padStart(2, '0')}:${String(min).padStart(2, '0')}`;
+};
+
+const getGMTOffsets = (timezones: TimeZone[]): string[] => {
+  const gmtOffsets: string[] = [];
+
+  for (const timezone of timezones) {
+    const offsetValue = minutesToHours(timezone.rawOffsetInMinutes);
+    const gmtText = `(${offsetValue})`;
+
+    gmtOffsets.push(`${timezone.name} ${gmtText}`);
+  }
+
+  return gmtOffsets;
+};
+
+export const splitTimeZone = (input: string | null): string => {
+  if (input === null) {
+    return '';
+  }
+  const [timeZone] = input.split('(');
+
+  return timeZone.trim();
+};
+
+export const TIME_ZONES_FULL = getGMTOffsets(TIME_ZONE_DATA);
+
+export const TIME_ZONES = ['Etc/UTC', ...timeZonesNames];