jack/exchange-monitor-go
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b08d8490fcf423dbb733febcf956b6a85ccc5cb9
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Author SHA1 Message Date
jackyu66git b08d8490fc fix: data race, scale-in PnL, nonce mutex, dead code, hourly check 
- 🔴 Data race: Add GetPositionsCopy() returning deep copies (no shared
  ArbPosition pointers). Use it in dashboard broadcastLoop + handleStatus.
- 🟡 Scale-in PnL: Track LongEntryPrices/ShortEntryPrices on ArbPosition,
  compute weighted average (harmonic mean) at exit for accurate PnL.
- 🟢 CalcNetProfit: Delete dead code from exchange/helpers.go.
- 🟢 HL nonce: Add sync.Mutex around lastNonce++ (thread safety).
- 🟢 Hourly check: Change from 5-second window to minute window.
- 🟢 ExitPrice: Test mode closeLeg already handled by checkExit.
 2026-05-03 18:31:14 +08:00
jackyu66git beb3611778 Phase 3: Real-time enhancements 
P3-1: Scan optimization — only BG↔HL (50+ pair combos → 2)
P3-2: Real-time spread chart — spreadHistory ring buffer +
      /api/spread-history endpoint + Chart.js spread chart
P3-3: Live position PnL — positions SSE now includes
      estimated current profit/loss + current spread
P3-4: Real-time trade events — trader.OnTradeEvent callback
      fires SSE 'trade_open' / 'trade_close' immediately
P3-5: Connection status monitoring — tracks last update time
      per exchange, broadcast via stats.connections + /api/connections

Frontend: spread chart card, PnL column in positions,
          connection status dots in stats bar,
          green/red border flash on trade events
 2026-05-03 18:05:19 +08:00
jackyu66git c2489614a7 Phase 2: Web dashboard with SSE real-time push 
- dashboard.go: SSE hub + HTTP server + price history ring buffer
- static.go: //go:embed for static files
- web/static/index.html: Full dashboard HTML (6 panels)
- web/static/app.js: SSE client, Chart.js price chart, live table updates
- web/static/style.css: GitHub-style dark theme
- main.go: Start dashboard on :8888 + wire price recording + scan results

Dashboard features:
  - Real-time price table (6 coins × 4 exchanges)
  - Arbitrage opportunities table
  - Open positions view
  - Historical trades table (from SQLite)
  - Chart.js price chart with coin/exchange selector
  - Stats summary (total/converged/diverged/flat)
  - 🚫 Zero external Go dependencies (Chart.js loaded from CDN)
 2026-05-03 17:38:26 +08:00