Portfolio Buddy 2 - Migration Tracker

Migration Status: 40 Features

✅ Completed (36/40 - 90%)

Core features migrated and working:

• CSV upload and parsing with PapaParse

• Supabase storage integration

• Basic metrics calculation (Sharpe, Max DD, CAGR, Win Rate, etc.)

• Sortino Ratio (completed commits 258ba3a, 9f25040)

• Risk-free rate input (completed commit 258ba3a)

• Asset correlation matrix (Spearman & Pearson)

• Portfolio comparison charts (Chart.js)

• Equity curve visualization

• Responsive UI with Tailwind CSS

• shadcn/ui color system integration

• Date range filtering (completed commit 258ba3a)

• Contract multipliers for futures (useContractMultipliers hook)

• Advanced multi-column sorting (useSorting hook)

• Error handling and validation

• File upload progress tracking

• Multiple file management

• Database Integration (Nov 16, 2025) - PRODUCTION READY ✓

  • Python script uploads trades automatically ✓
  • New database schema (portfolios, strategies, trades) ✓
  • Frontend database fetch ✓ (commits c4fa57c through ee7cec8)
  • Dual CSV/Database support ✓
  • Format auto-detection (1-row vs 2-row) ✓
  • User tested and verified ✓
  • Merged to main and deployed ✓
  • See: dev-docs/supabase-migration-plan.md

🚧 In Progress (3/40)

1. Advanced filtering - Partial implementation
   • Date filtering complete ✓
   • Symbol filtering needed
   • Strategy filtering needed
2. Export functionality - CSV export only
   • Excel export pending
   • PDF reports pending
3. Historical comparison - Backend ready, UI pending
   • Need UI for comparing multiple time periods

❌ Not Started (2/40)

1. Multi-period analysis - Complex, low priority
   • Compare performance across different time windows
   • Requires significant UI work
2. Risk scenario modeling - Requires new backend logic
   • Monte Carlo simulations
   • Stress testing

Recent Completed Features

Database Fetch Implementation (Nov 16, 2025) ✅ COMPLETED

Status: Production ready - Tested and deployed Commits: c4fa57c, a5ce0ec, 676de06, eba4c8d, ee7cec8, ae9202d Merged to main: d56497a (PR #1)

Implementation Journey (6 commits):

1. Initial Implementation (c4fa57c)

   • Added calculateMetricsFromDatabase() and buildFilenameFromMetadata() to dataUtils.ts
   • Rewrote fetchFromSupabase() in App.tsx
   • Changed from old csv_files table to new strategies + trades schema
   • Added TypeScript interfaces: DatabaseTrade, StrategyMetadata

2. Fix Query Syntax (a5ce0ec)

   • Fixed Supabase order clause syntax error
   • Changed order('trades.trade_date') to order('trade_date') with foreignTable parameter
   • Error: "failed to parse order (trades.trade_date.asc)"

3. Fix Trade Count Limit (676de06)

   • Discovered Supabase embedded resource limit (~60 rows)
   • Separated queries: fetch strategies first, then fetch trades separately
   • Added explicit .limit(10000) to get all trades
   • Fixed: 59 trades → 119 trades ✅

4. Fix TypeScript Build Errors (eba4c8d)

   • Added StrategyFromDB interface with optional trades? property
   • Added DatabaseTrade interface to App.tsx
   • Fixed: "Property 'trades' does not exist" errors

5. Fix Metrics Calculation (ee7cec8) ⭐ CRITICAL FIX

   • Auto-detect format: 2-row (Entry/Exit) vs 1-row (database)
   • Modified calculateMetrics() to check for "Entry/Exit" column
   • If present → loop by 2 (old CSV format)
   • If absent → loop by 1 (new database format)
   • Fixed: Metrics now calculated correctly for all 119 trades ✅

6. Update Documentation (ae9202d)

   • Updated migration-tracker skill with implementation details
   • Documented all changes and line numbers

Final Results:

• ✅ 119 trades loaded from database (not 59)
• ✅ All metrics calculated correctly (win rate, profit factor, etc.)
• ✅ CSV upload backward compatibility preserved
• ✅ Dual-mode support: both CSV and database work simultaneously
• ✅ Format auto-detection works seamlessly
• ✅ User tested and verified working
• ✅ Deployed to production

Files Modified:

• src/utils/dataUtils.ts: +235 lines (functions, interfaces, auto-detection)
• src/App.tsx: +145 lines (database fetch, TypeScript types)
• .claude/skills/migration-tracker/SKILL.md: Documentation updates

How It Works:

1. User clicks "Load Data" button
2. App fetches strategies from Supabase
3. For each strategy, fetches ALL trades separately (no 60-row limit)
4. Builds filename from metadata (e.g., SI_Long_Test_TestStrategy1.csv)
5. Transforms to cleanedData format with 3 columns (no Entry/Exit column)
6. calculateMetrics() auto-detects format and processes correctly
7. Pre-populates contract multipliers from database
8. Auto-selects strategies and displays metrics/charts

Backward Compatibility:

• ✅ CSV upload with 4 columns (includes Entry/Exit) → 2-row processing
• ✅ Database with 3 columns (no Entry/Exit) → 1-row processing
• ✅ Both formats work simultaneously
• ✅ All existing components, hooks, charts unchanged

Database Integration Planning (Nov 16, 2025)

Status: Planning complete, ready for implementation What Changed:

• Created comprehensive migration plan (dev-docs/supabase-migration-plan.md)
• Analyzed new Supabase database schema (portfolios, strategies, trades tables)
• Designed dual-mode support (CSV upload + database fetch)
• Planned data transformation strategy (single-row trades vs entry/exit pairs)

New Database Schema:

• portfolios: Portfolio definitions with is_master flag
• strategies: Strategy metadata (market, direction, contract_multiplier, etc.)
• trades: Individual trade records (trade_date, trade_time, profit)
• portfolio_strategies: Links portfolios to strategies

Implementation Plan:

1. Add calculateMetricsFromDatabase() function in dataUtils.ts (~80 lines)
2. Update fetchFromSupabase() query in App.tsx (~60 lines changed)
3. Transform database data to match cleanedData format
4. Pre-populate contract multipliers from database
5. Test with 119 existing trades

Current State:

• Python script on Windows VPS uploads trades automatically ✓
• Database contains 1 strategy with 119 trades ✓
• Frontend still queries old csv_files table (needs update)

Next Steps:

• Implement Phase 1: New calculation function
• Implement Phase 2: Update Supabase query
• Test dual CSV/Database support
• Deploy to production

Strategy Delete Feature (Nov 19, 2025) ✅

Commit: c372ab7a92d267eda3e540b298872484ef09e38d Files: App.tsx (+47), MetricsTable.tsx (+18), PortfolioSection.tsx (+8)

What it does:

• Delete database strategies permanently (red trash icon with confirmation)
• Remove CSV strategies from view (gray trash icon, immediate)
• strategyIdMap tracks DB vs CSV (App.tsx line 67)
• handleDeleteStrategy with Supabase deletion (App.tsx lines 423-458)
• Trash2 icon in Actions column (MetricsTable.tsx lines 1, 239-246)

Git Forensic Recovery (Dec 2, 2025) ✅

Problem: Delete feature was "lost" (local repo behind origin/main)

Solution:

git fetch origin
git merge origin/main  # Fast-forward to c372ab7

Key lesson: Always check git log origin/main when work seems missing

Sortino Ratio (Oct 2025)

Commits: 258ba3a, 9f25040 What Changed:

• Added risk-free rate input field in PortfolioSection (line 131: useState<number>(0))
• Implemented inline Sortino calculation in PortfolioSection (lines 133-158)
• Fixed downside deviation calculation (now properly annualized using sqrt(365))
• Corrected variance calculation (divides by total returns, not just negative returns)
• Displays in portfolio stats section (line 535)

Files Modified:

• PortfolioSection.tsx: Added riskFreeRate state, downside deviation calculation, and display

Implementation Details:

• NOT in dataUtils.ts - Sortino is calculated inline in PortfolioSection using useMemo
• NOT in MetricsTable - Only disp