Devlog #4 – Gmail, Google Classroom, and Calendar Improvements

What I Worked On

I focused on connecting more Google services to StudyOS and improving how calendar data is displayed.

Google Classroom

I created a new Classroom page that automatically loads my Google Classroom courses and displays assignments from each class.

Features Added

• Connected to the Google Classroom API.
• Loaded all enrolled courses.
• Retrieved coursework from every class.
• Combined assignments into one list.
• Sorted assignments by due date.
• Displayed the class name with each assignment.

Problems Solved

• Fixed OAuth authentication issues.
• Added the required Google Classroom scopes.
• Debugged 401 Unauthorized and 403 Permission Denied errors.
• Learned that teachers can restrict API access to coursework, causing some assignments to be unavailable.

---

Gmail

I continued improving Gmail integration.

Improvements

• Better loading of Gmail messages.
• More reliable Google authentication.
• Cleaner organization for displaying emails.

---

Google Calendar

The calendar received several major improvements.

Features Added

• Combined events from every calendar instead of only the primary calendar.
• Added search functionality.
• Added Today, Week, and Month views.
• Added Previous, Next, and Today navigation buttons.
• Added support for changing weeks and months without reloading.
• Sorted all events by date.

Bug Fixes

• Fixed missing events caused by incorrect API parameters.
• Fixed events not appearing from shared calendars.
• Fixed date filtering logic.
• Corrected React state issues with currentDate.
• Fixed navigation bugs while switching between calendar views.

---

Next Steps

• Create and edit calendar events directly from StudyOS.
• Add assignment completion tracking.
• Display Gmail labels and unread counts.
• Improve the calendar UI with drag-and-drop support.
• Connect Google Drive files to assignments.