[FEATURE] AI-Powered Revision Scheduler

[richachauhan15]

Problem Statement

LeetcodeAI helps users solve problems and generate learning resources, but there is currently no structured mechanism to help users revise previously solved questions. Many users forget concepts over time because they do not revisit problems at appropriate intervals.

A revision scheduling system based on spaced repetition can significantly improve retention and long-term learning outcomes.

Proposed Solution

Implement an AI-Powered Revision Scheduler that automatically creates revision plans for solved problems.

The system should:

• Track solved problems and their completion dates.
• Generate revision reminders using spaced repetition intervals.
• Display upcoming revision tasks in a dedicated dashboard.
• Allow users to mark revisions as completed.
• Update future revision schedules based on completion status.
• Provide AI-generated recommendations for problems that require additional practice.

Suggested Revision Intervals

Example schedule:

• Day 1
• Day 3
• Day 7
• Day 14
• Day 30
• Day 60

These intervals can be configurable for future improvements.

Expected Features

Backend

• Store revision schedule data.
• Track revision completion status.
• Generate next revision dates automatically.
• Create APIs for fetching upcoming revisions.

Frontend

• Revision dashboard.
• Upcoming revisions list.
• Completed revisions history.
• Progress indicators.

AI Enhancements

• Identify frequently forgotten topics.
• Recommend additional practice questions.
• Suggest priority revisions based on performance.

Benefits

• Improves concept retention.
• Encourages consistent revision habits.
• Creates personalized learning experiences.
• Enhances the overall effectiveness of LeetcodeAI.

Acceptance Criteria

• Users can view scheduled revisions.
• Revision dates are generated automatically.
• Users can mark revisions as completed.
• Dashboard displays upcoming and completed revisions.
• APIs are documented and tested.
• UI follows existing project design patterns.

Possible Tech Stack

• Backend: Existing project framework
• Database: Existing project database
• Frontend: Existing UI components
• Scheduling Logic: Spaced Repetition Algorithm

Additional Notes

This feature should be designed to support future enhancements such as email notifications, calendar integration, and AI-driven revision prioritization.

[richachauhan15]

Hi @vanshaggarwal27 assign this issue to me

[UnmeshaSingh]

Hi @vanshaggarwal27! As someone who has already contributed 3 merged PRs to this repo, I'd love to
work on this feature.

My implementation plan -> I'll break this into phases:

Phase 1 (Core Backend):

• Add revision_schedules collection to MongoDB
• Store solved problem + completion date + next revision dates using spaced repetition intervals (Day 1, 3, 7, 14, 30, 60)
• API endpoint: GET /revision/upcoming
• API endpoint: POST /revision/complete

Phase 2 (Frontend Dashboard):

• Add revision tab to existing dashboard
• Show upcoming revisions list
• Mark as completed button

Phase 3 (AI Enhancement):

• Use existing AI provider to suggest priority revisions based on problem difficulty

I'll start with Phase 1 only and keep each PR focused. Could you please assign this to me?
Thank you!