Implement Signal Performance Tracking System

[Mathews-25]

Context:
Users need to see real-time performance of signals (P&L, success rate) to make informed decisions. Signal providers earn reputation based on outcomes.

Problem:
Create a system that tracks signal outcomes, calculates P&L, updates provider statistics, and triggers notifications.

What Done Looks Like:

• Background job that monitors signal outcomes
• P&L calculation based on market prices
• Provider reputation scoring
• Signal status updates (ACTIVE → CLOSED)
• Performance history aggregation

Folder Structure:

src/
├── signals/
│   ├── services/
│   │   ├── signal-performance.service.ts
│   │   └── provider-stats.service.ts
│   ├── jobs/
│   │   └── track-signal-outcomes.job.ts
│   └── entities/
│       └── signal-performance.entity.ts

Implementation Guidelines:

• Use Bull queue for background processing
• Run performance check every 5 minutes
• Fetch current prices from SDEX
• Calculate P&L: (currentPrice - entryPrice) / entryPrice * 100
• Update signal status when target/stop-loss hit
• Aggregate provider stats: total signals, win rate, avg P&L
• Emit events for notifications

Metrics to Track:

• Current P&L percentage
• Max drawdown
• Time to target/stop-loss
• Number of copiers
• Total volume copied

Edge Cases:

• Asset not trading on SDEX
• Price feed unavailable
• Signal expires before hitting target/stop-loss

Validation:

• Performance updates correctly
• Provider stats aggregate accurately
• Status transitions work
• Background job runs on schedule