# Bias Detective App Enhancements

## Overview

This document describes the enhancements made to the bias detective app (not v2) to implement dynamic rank tracking, ethical percentage validation, and submission limits.

## Requirements Addressed

### 1. Dynamic Moral Compass Score and Rank Display ✅

**Problem**: The bias detective app was not showing changes in rank or score dynamically for the moral compass score and moral compass rank for individuals and teams.

**Solution**:
- Added `get_user_ranks()` function in `mc_integration_helpers.py` to fetch individual and team ranks from the moral compass leaderboard
- Enhanced `get_moral_compass_score_html()` to accept and display rank parameters
- Modified `log_task_completion()` to update ranks dynamically after each task completion
- Updated `check_checkpoint_refresh()` to use the moral compass API for rank updates
- Implemented fallback to playground leaderboard if moral compass API is unavailable

**Files Modified**:
- `aimodelshare/moral_compass/apps/bias_detective.py`
- `aimodelshare/moral_compass/apps/mc_integration_helpers.py`

### 2. Ethical Percentage Validation (Cannot Exceed 100%) ✅

**Problem**: The total ethical percentages could theoretically exceed 100% if users completed more tasks than the maximum.

**Solution**:
- Added cap in `calculate_ethical_progress()` function using `min(progress, 100.0)`
- Added additional cap in `get_moral_compass_score_html()` using `min(ethical_progress_pct, 100.0)`
- Added safety check in `log_task_completion()` using `min(tasks_completed + 1, max_points)`

**Files Modified**:
- `aimodelshare/moral_compass/apps/bias_detective.py`

### 3. Task/Question Submission Limits ✅

**Problem**: Users could submit tasks/questions multiple times and could potentially surpass the total number of possible tasks and questions.

**Solution**:

#### ChallengeManager Enhancements:
- Added `is_task_completed(task_id)` method to check completion status
- Modified `complete_task(task_id)` to return `bool` indicating if task was newly completed
- Added `is_question_answered(question_id)` method to check answer status
- Modified `answer_question(...)` to return `(is_correct, is_new_answer)` tuple

#### Bias Detective App Changes:
- Made ChallengeManager the authoritative source for submission state
- Added duplicate submission checks before recording answers
- Ensured local `task_answers` tracking stays in sync with ChallengeManager
- Added maximum task count enforcement

**Files Modified**:
- `aimodelshare/moral_compass/challenge.py`
- `aimodelshare/moral_compass/apps/bias_detective.py`

## Additional Improvements

### Code Quality
- Added `TEAM_USERNAME_PREFIX` constant in `mc_integration_helpers.py` to avoid magic strings
- Improved error handling and logging throughout
- Added comprehensive inline documentation

### Testing
Created `tests/test_bias_detective_enhancements.py` with 9 comprehensive tests:
1. `test_challenge_manager_prevents_duplicate_task_completion` - Verifies tasks can only be completed once
2. `test_challenge_manager_is_task_completed` - Tests task completion status checking
3. `test_challenge_manager_enforces_max_tasks` - Ensures task count doesn't exceed maximum
4. `test_challenge_manager_prevents_duplicate_question_answers` - Prevents duplicate question submissions
5. `test_challenge_manager_is_question_answered` - Tests question answer status checking
6. `test_ethical_progress_percentage_caps_at_100` - Validates 100% cap on ethical progress
7. `test_challenge_manager_enforces_question_limit` - Ensures question count is enforced
8. `test_get_moral_compass_score_html_includes_ranks` - Tests rank display in widget
9. `test_get_moral_compass_score_html_caps_ethical_progress` - Tests ethical progress cap in HTML

All tests passing ✅

## Architecture Decisions

### ChallengeManager as Single Source of Truth
The ChallengeManager is now the authoritative source for task and question completion state. Local tracking in `task_answers` is secondary and syncs with ChallengeManager state.

**Rationale**: 
- Prevents race conditions between local and server state
- Ensures consistency across page reloads
- Simplifies debugging and state management

### Dual Rank Fetching Strategy
Ranks are fetched from moral compass API first, with fallback to playground leaderboard.

**Rationale**:
- Moral compass API is the primary source for ethical scoring
- Playground leaderboard provides fallback for robustness
- Graceful degradation ensures app remains functional

### Progressive Enhancement
All new features are opt-in and don't break existing functionality.

**Rationale**:
- Backwards compatible with existing code
- No breaking changes to API
- Existing apps continue to work unchanged

## Security Considerations

- ✅ CodeQL security scan passed with 0 alerts
- ✅ No SQL injection vulnerabilities
- ✅ No cross-site scripting (XSS) vulnerabilities  
- ✅ Proper input validation and sanitization
- ✅ No exposure of sensitive data

## Performance Considerations

### Caching
- User stats cached with TTL to reduce API calls
- Leaderboard data cached with configurable TTL
- Cache invalidation on updates ensures fresh data

### Debouncing
- Server sync operations are debounced to prevent excessive API calls
- Local state updates are immediate for responsive UI

## Backwards Compatibility

All changes are backwards compatible:
- Return value changes in `complete_task()` and `answer_question()` don't affect existing code that doesn't check return values
- New parameters in `get_moral_compass_score_html()` are optional
- Existing apps continue to function without modification

## Future Enhancements

Potential improvements for future iterations:
1. Real-time WebSocket updates for live rank changes
2. Historical rank tracking and charts
3. Team leaderboard with member details
4. Configurable checkpoint intervals
5. Mobile-optimized rank display

## Testing & Validation

### Unit Tests
- 9 comprehensive unit tests covering all new functionality
- Mocked API client for isolated testing
- Edge cases and error conditions tested

### Integration Testing
- Verified app creation doesn't break
- Checked backwards compatibility with existing code
- Validated no breaking changes to API contracts

### Manual Testing Checklist
- [ ] Verify duplicate task submissions are prevented
- [ ] Confirm ethical progress caps at 100%
- [ ] Check ranks update after task completion
- [ ] Validate team ranks display correctly
- [ ] Test checkpoint rank refresh functionality
- [ ] Verify fallback to playground leaderboard works
- [ ] Confirm max task limit is enforced

## Deployment Notes

No special deployment steps required. Changes are:
- Backwards compatible
- Self-contained within modified files
- No database schema changes
- No configuration changes needed

## Support & Troubleshooting

### Common Issues

**Ranks not updating**:
- Check moral compass API connectivity
- Verify playground leaderboard is accessible
- Check cache TTL settings

**Duplicate submission errors**:
- This is expected behavior - tasks can only be completed once
- Check ChallengeManager state for completion status

**Ethical progress stuck at 100%**:
- This is correct behavior - progress caps at 100%
- Additional tasks don't increase percentage but are still tracked

## References

- Issue: [Update bias detective app requirements]
- PR: [Add dynamic rank tracking and submission validation]
- Tests: `tests/test_bias_detective_enhancements.py`
- Main files:
  - `aimodelshare/moral_compass/apps/bias_detective.py`
  - `aimodelshare/moral_compass/apps/mc_integration_helpers.py`
  - `aimodelshare/moral_compass/challenge.py`
