Added dynamic calender route.

pages/calendar/[...date].tsx

@@ -0,0 +1,78 @@
+import React, { useEffect, useState } from "react";
+import { Box } from "@chakra-ui/react";
+import { useRouter } from "next/router";
+import ErrorPage from "next/error";
+import Calender from "../../components/calender";
+import { CalenderContextProvider } from "../../contexts/CalenderContext";
+
+interface UpdateCalendarProps {
+  year: number;
+  month: number;
+  day: number;
+}
+
+const DateRoute: React.FC<unknown> = () => {
+  const router = useRouter();
+  const { date: slug } = router.query;
+
+  const [date, setDate] = useState<UpdateCalendarProps | null>(null);
+
+  const validateDateInput = (dateArr: number[]): UpdateCalendarProps => {
+    if (!(dateArr.length >= 2) && !(dateArr.length <= 3)) {
+      return {
+        year: 0,
+        month: 0,
+        day: 0,
+      };
+    }
+
+    const date = {
+      year: 0,
+      month: 0,
+      day: 0,
+    }
+
+    if (/^(19|20)\d{2}$/.test(`${dateArr[0]}`)) {
+      date.year = dateArr[0];
+    }
+
+    if ((dateArr[1] > 0) || (dateArr[1] <= 12)) {
+      date.month = dateArr[1]
+    }
+
+    if (dateArr[2] && ((dateArr[2] > 0) || (dateArr[2] <= 31))) {
+      date.day = dateArr[2]
+    } else if (!dateArr[2]) {
+      date.day = 1;
+    }
+
+    return date;
+  };
+
+  useEffect(() => {
+    if (slug && slug.length === 1 && slug[0] !== "now") {
+      return console.warn("improper date input");
+    }
+
+    if (slug && Array.isArray(slug) && slug.length >= 2 && slug.length <= 3) {
+      const parsedSlug = slug.map((e) => {
+        return parseInt(e);
+      });
+      setDate({...validateDateInput(parsedSlug)});
+    }
+  }, [slug]);
+
+  if (router.isFallback) {
+    return <ErrorPage statusCode={404} />;
+  }
+
+  return (
+    <Box textAlign="center" w="100%" h="auto" pt="50px" pb="10vh">
+      <CalenderContextProvider>
+        <Calender {...date} />
+      </CalenderContextProvider>
+    </Box>
+  );
+};
+
+export default DateRoute;