significantly improved datepicker

frontend/src/helperFunctions/convertAniListDateIn.ts

@@ -0,0 +1,37 @@
+import moment from "moment";
+
+const convertAniListDateToString = (date: {
+  year?: number;
+  month?: number;
+  day?: number;
+}): string => {
+  if (
+    date.year === undefined ||
+    (date.year === 0 && date.month === undefined) ||
+    (date.month === 0 && date.day === undefined) ||
+    date.day === 0
+  ) {
+    return "";
+  }
+  const newISODate = new Date(date.year, date.month - 1, date.day);
+  const newMoment = moment(newISODate);
+  return newMoment.format("MM-DD-YYYY");
+};
+
+const convertAniListDateToDate = (date: {
+  year?: number;
+  month?: number;
+  day?: number;
+}): Date | null => {
+  if (
+    date.year === undefined ||
+    (date.year === 0 && date.month === undefined) ||
+    (date.month === 0 && date.day === undefined) ||
+    date.day === 0
+  ) {
+    return null;
+  }
+  return new Date(date.year, date.month - 1, date.day);
+};
+
+export { convertAniListDateToString, convertAniListDateToDate };