#!/usr/bin/env python3
"""
Test script for the simplified position tracker.

This script validates that the simplified position tracker:
1. Detects position changes correctly
2. Sends appropriate notifications
3. Handles pending stop losses properly
"""

import asyncio
import sys
import os
import logging

# Add project root to path
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))

from src.monitoring.simple_position_tracker import SimplePositionTracker
from src.trading.trading_engine import TradingEngine
from src.notifications.notification_manager import NotificationManager

# Set up logging
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)

class MockNotificationManager:
    """Mock notification manager for testing."""
    
    async def send_generic_notification(self, message: str):
        """Print notification instead of sending."""
        print(f"\n📨 NOTIFICATION:\n{message}\n")

async def test_simplified_position_tracker():
    """Test the simplified position tracker."""
    try:
        logger.info("🧪 Starting simplified position tracker test")
        
        # Initialize components
        trading_engine = TradingEngine()
        notification_manager = MockNotificationManager()
        
        # Create simplified position tracker
        tracker = SimplePositionTracker(trading_engine, notification_manager)
        
        logger.info("✅ Components initialized successfully")
        
        # Test position change detection
        logger.info("🔍 Testing position change detection...")
        await tracker.check_all_position_changes()
        
        logger.info("✅ Position change detection completed")
        
        # Get current positions for reference
        exchange_positions = trading_engine.get_positions() or []
        db_positions = trading_engine.get_stats().get_open_positions() if trading_engine.get_stats() else []
        
        logger.info(f"📊 Current state:")
        logger.info(f"  Exchange positions: {len(exchange_positions)}")
        logger.info(f"  DB positions: {len(db_positions)}")
        
        for pos in exchange_positions:
            symbol = pos.get('symbol')
            contracts = pos.get('contracts', 0)
            logger.info(f"    Exchange: {symbol} = {contracts}")
        
        for pos in db_positions:
            symbol = pos.get('symbol')
            size = pos.get('current_position_size', 0)
            status = pos.get('status')
            logger.info(f"    DB: {symbol} = {size} ({status})")
        
        logger.info("🎉 Test completed successfully!")
        
    except Exception as e:
        logger.error(f"❌ Test failed: {e}")
        raise

async def test_pending_stop_losses():
    """Test pending stop loss handling."""
    try:
        logger.info("🧪 Testing pending stop loss handling")
        
        trading_engine = TradingEngine()
        notification_manager = MockNotificationManager()
        tracker = SimplePositionTracker(trading_engine, notification_manager)
        
        # Check pending SLs
        stats = trading_engine.get_stats()
        if stats:
            pending_sls = stats.get_pending_stop_loss_activations()
            logger.info(f"📋 Found {len(pending_sls)} pending stop losses")
            
            for sl in pending_sls:
                symbol = sl.get('symbol')
                stop_price = sl.get('stop_loss_price')
                logger.info(f"  Pending SL: {symbol} @ {stop_price}")
        
        # Test SL handling
        await tracker._handle_pending_stop_losses(stats)
        
        logger.info("✅ Pending stop loss test completed")
        
    except Exception as e:
        logger.error(f"❌ Pending SL test failed: {e}")
        raise

async def test_orphaned_pending_trades():
    """Test orphaned pending trades cleanup."""
    try:
        logger.info("🧪 Testing orphaned pending trades handling")
        
        trading_engine = TradingEngine()
        notification_manager = MockNotificationManager()
        tracker = SimplePositionTracker(trading_engine, notification_manager)
        
        # Check pending trades
        stats = trading_engine.get_stats()
        if stats:
            pending_trades = stats.get_trades_by_status('pending')
            logger.info(f"📋 Found {len(pending_trades)} pending trades")
            
            for trade in pending_trades:
                symbol = trade.get('symbol')
                lifecycle_id = trade.get('trade_lifecycle_id')
                entry_order_id = trade.get('entry_order_id')
                logger.info(f"  Pending trade: {symbol} (Lifecycle: {lifecycle_id[:8]}, Order: {entry_order_id})")
        
        # Test orphaned trade handling
        await tracker._handle_orphaned_pending_trades(stats)
        
        logger.info("✅ Orphaned pending trades test completed")
        
    except Exception as e:
        logger.error(f"❌ Orphaned pending trades test failed: {e}")
        raise

def print_status_comparison():
    """Print comparison between simplified and complex approaches."""
    print("""
🎯 SIMPLIFIED POSITION TRACKER vs COMPLEX EXTERNAL EVENT MONITOR

✅ SIMPLIFIED APPROACH:
• Single method: check_all_position_changes()
• Clear logic: Exchange positions ↔ DB positions
• Always sends notifications
• Simple pending SL handling
• ~280 lines of code
• Uses existing trades table and managers

❌ COMPLEX APPROACH:
• Multiple interacting methods
• Complex fill analysis and state tracking  
• Missed notifications (auto-sync gap)
• Complicated order tracking
• ~750+ lines of code
• Over-engineered state management

🎉 BENEFITS OF SIMPLIFICATION:
1. No more missed notifications
2. Easier to understand and maintain
3. Reuses existing infrastructure
4. Clear separation of concerns
5. Reliable position state tracking
""")

if __name__ == "__main__":
    async def main():
        print_status_comparison()
        
        # Run tests
        await test_simplified_position_tracker()
        await test_pending_stop_losses()
        await test_orphaned_pending_trades()
        
        print("\n🎉 All tests completed successfully!")
        print("\n💡 The simplified position tracker is ready to replace the complex external event monitor!")
    
    asyncio.run(main())