- Introduced a google-calendar-utils.js and function to fetch Google calendar events for the provided token

- Handled the response from the google calendar api to work with the eventData model for firebase

calendar-integration/google-calendar-utils.js

@@ -0,0 +1,66 @@
+export async function fetchGoogleCalendarEvents(token) {
+
+    const response = await fetch(
+        'https://www.googleapis.com/calendar/v3/calendars/primary/events',
+        {
+            headers: {
+                Authorization: `Bearer ${token}`,
+            },
+        }
+    );
+
+    const data = await response.json();
+    const googleEvents = [];
+    data.items?.forEach((item) => {
+
+        let isAllDay = false;
+        const start = item.start;
+        let startDateTime;
+        if (start !== undefined) {
+
+            const timezone = start.timeZone;
+            if (start.dateTime) {
+                const stringDate = start.dateTime;
+                startDateTime = new Date(stringDate).toLocaleString("en-us", {...options, timeZone: timezone});
+            } else {
+                const stringDate = start.date;
+                startDateTime = new Date(stringDate).toLocaleString("en-us", {...options, timeZone: timezone});
+                isAllDay = true;
+            }
+        }
+
+        const end = item.end;
+        let endDateTime;
+        if (end !== undefined) {
+            const timezone = end.timeZone;
+            if (end.dateTime) {
+                const stringDate = end.dateTime;
+                endDateTime = new Date(stringDate).toLocaleString("en-us", {...options, timeZone: timezone});
+            } else {
+                const stringDate = end.date;
+                endDateTime = new Date(stringDate).toLocaleString("en-us", {...options, timeZone: timezone});
+            }
+        }
+
+        const googleEvent = {
+            id: item.id,
+            title: item.summary,
+            startDate: startDateTime,
+            endDate: endDateTime,
+            allDay: isAllDay
+        };
+        googleEvents.push(googleEvent);
+    });
+
+    return googleEvents;
+}
+
+const options = {
+    year: "numeric",
+    month: "long",
+    day: "numeric",
+    hour: "numeric",
+    minute: "numeric",
+    second: "numeric",
+    timeZoneName: "short"
+};