# Implementation Checklist: Unified Refresh System

## 📋 Step-by-Step Implementation Guide

### Phase 1: Foundation (Day 1) ⚡ CRITICAL

#### ✅ Step 1.1: Create Refresh Manager
- [ ] Create `lib/services/refresh-manager.ts`
- [ ] Test singleton pattern
- [ ] Test register/unregister
- [ ] Test start/stop
- [ ] Test deduplication logic

**Estimated Time**: 2-3 hours

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#### ✅ Step 1.2: Create Request Deduplication
- [ ] Create `lib/utils/request-deduplication.ts`
- [ ] Test deduplication with same key
- [ ] Test TTL expiration
- [ ] Test cleanup

**Estimated Time**: 1 hour

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#### ✅ Step 1.3: Create Constants
- [ ] Create `lib/constants/refresh-intervals.ts`
- [ ] Define all intervals
- [ ] Export helper function

**Estimated Time**: 30 minutes

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#### ✅ Step 1.4: Create Unified Hook
- [ ] Create `hooks/use-unified-refresh.ts`
- [ ] Test registration on mount
- [ ] Test cleanup on unmount
- [ ] Test manual refresh

**Estimated Time**: 1-2 hours

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### Phase 2: Fix Critical Issues (Day 1-2) 🔴 URGENT

#### ✅ Step 2.1: Fix Redis KEYS → SCAN
- [ ] Update `lib/services/notifications/notification-service.ts` line 293
- [ ] Replace `redis.keys()` with `redis.scan()`
- [ ] Test with large key sets

**Estimated Time**: 30 minutes

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#### ✅ Step 2.2: Fix Notification Hook Memory Leak
- [ ] Fix `hooks/use-notifications.ts` useEffect cleanup
- [ ] Remove function dependencies
- [ ] Test cleanup on unmount

**Estimated Time**: 1 hour

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#### ✅ Step 2.3: Fix Notification Badge Double Fetch
- [ ] Update `components/notification-badge.tsx`
- [ ] Remove duplicate useEffect hooks
- [ ] Add request deduplication
- [ ] Test single fetch per action

**Estimated Time**: 1 hour

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### Phase 3: Refactor Notifications (Day 2) 🟡 HIGH PRIORITY

#### ✅ Step 3.1: Refactor useNotifications Hook
- [ ] Integrate unified refresh
- [ ] Add request deduplication
- [ ] Remove manual polling
- [ ] Test all functionality

**Estimated Time**: 2-3 hours

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#### ✅ Step 3.2: Update Notification Badge
- [ ] Remove manual fetch logic
- [ ] Use hook's refresh function
- [ ] Test UI interactions

**Estimated Time**: 1 hour

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### Phase 4: Refactor Widgets (Day 3-4) 🟢 MEDIUM PRIORITY

#### ✅ Step 4.1: Refactor Calendar Widget
- [ ] Update `components/calendar.tsx`
- [ ] Use unified refresh hook
- [ ] Add request deduplication
- [ ] Test refresh functionality

**Estimated Time**: 1 hour

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#### ✅ Step 4.2: Refactor Parole Widget
- [ ] Update `components/parole.tsx`
- [ ] Use unified refresh hook
- [ ] Remove manual interval
- [ ] Test chat updates

**Estimated Time**: 1 hour

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#### ✅ Step 4.3: Refactor News Widget
- [ ] Update `components/news.tsx`
- [ ] Use unified refresh hook
- [ ] Add auto-refresh (was manual only)
- [ ] Test news updates

**Estimated Time**: 1 hour

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#### ✅ Step 4.4: Refactor Email Widget
- [ ] Update `components/email.tsx`
- [ ] Use unified refresh hook
- [ ] Add auto-refresh (was manual only)
- [ ] Test email updates

**Estimated Time**: 1 hour

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#### ✅ Step 4.5: Refactor Duties Widget
- [ ] Update `components/flow.tsx`
- [ ] Use unified refresh hook
- [ ] Add auto-refresh (was manual only)
- [ ] Test task updates

**Estimated Time**: 1 hour

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#### ✅ Step 4.6: Refactor Navigation Bar Time
- [ ] Create `components/main-nav-time.tsx`
- [ ] Update `components/main-nav.tsx` to use new component
- [ ] Use unified refresh hook (1 second interval)
- [ ] Test time updates correctly
- [ ] Verify cleanup on unmount

**Estimated Time**: 30 minutes

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### Phase 5: Testing & Validation (Day 5) ✅ FINAL

#### ✅ Step 5.1: Memory Leak Testing
- [ ] Open DevTools Memory tab
- [ ] Monitor memory over 10 minutes
- [ ] Verify no memory leaks
- [ ] Check interval cleanup

**Estimated Time**: 1 hour

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#### ✅ Step 5.2: API Call Reduction Testing
- [ ] Open DevTools Network tab
- [ ] Monitor API calls for 5 minutes
- [ ] Verify deduplication works
- [ ] Count total calls (should be ~60% less)

**Estimated Time**: 1 hour

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#### ✅ Step 5.3: Performance Testing
- [ ] Test page load time
- [ ] Test widget refresh times
- [ ] Test with multiple tabs open
- [ ] Verify no performance degradation

**Estimated Time**: 1 hour

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#### ✅ Step 5.4: User Experience Testing
- [ ] Test all widgets refresh correctly
- [ ] Test manual refresh buttons
- [ ] Test notification updates
- [ ] Verify smooth UX

**Estimated Time**: 1 hour

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## 🎯 Daily Progress Tracking

### Day 1 Target:
- [x] Phase 1: Foundation (Steps 1.1-1.4)
- [x] Phase 2: Critical Fixes (Steps 2.1-2.3)

**Status**: ⏳ In Progress

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### Day 2 Target:
- [ ] Phase 3: Notifications (Steps 3.1-3.2)

**Status**: ⏸️ Pending

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### Day 3 Target:
- [ ] Phase 4: Widgets Part 1 (Steps 4.1-4.2)

**Status**: ⏸️ Pending

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### Day 4 Target:
- [ ] Phase 4: Widgets Part 2 (Steps 4.3-4.5)

**Status**: ⏸️ Pending

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### Day 5 Target:
- [ ] Phase 5: Testing (Steps 5.1-5.4)

**Status**: ⏸️ Pending

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## 🐛 Known Issues to Watch For

1. **Race Conditions**: Monitor for duplicate requests
2. **Memory Leaks**: Watch for uncleaned intervals
3. **Performance**: Monitor API call frequency
4. **User Experience**: Ensure smooth refresh transitions

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## 📊 Success Criteria

### Must Have:
- ✅ No memory leaks
- ✅ 60%+ reduction in API calls
- ✅ All widgets refresh correctly
- ✅ No duplicate requests

### Nice to Have:
- ✅ Configurable refresh intervals
- ✅ Pause/resume functionality
- ✅ Refresh status monitoring
- ✅ Error recovery

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## 🔄 Rollback Plan

If issues arise:

1. **Keep old code**: Don't delete old implementations immediately
2. **Feature flag**: Use environment variable to toggle new/old system
3. **Gradual migration**: Migrate one widget at a time
4. **Monitor**: Watch for errors in production

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## 📝 Notes

- All new code should be backward compatible
- Test each phase before moving to next
- Document any deviations from plan
- Update this checklist as you progress

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*Last Updated: Implementation Checklist v1.0*