feat: Integrate portfolio tracking and cash balance management in trading system

src/trading/journal.py

@@ -7,6 +7,53 @@ from db.db_connection import create_client
 from trading.position_calculator import PositionCalculator
 from utils.data_utils import get_user_input
 
+def create_portfolio_table():
+    with create_client() as client:
+        query = """
+            CREATE TABLE IF NOT EXISTS stock_db.portfolio_history (
+                id UInt32,
+                date DateTime,
+                total_value Float64,
+                cash_balance Float64,
+                notes Nullable(String),
+                created_at DateTime DEFAULT now()
+            ) ENGINE = MergeTree()
+            ORDER BY (date, id)
+        """
+        client.command(query)
+
+def update_portfolio_value(total_value: float, cash_balance: float, notes: Optional[str] = None):
+    with create_client() as client:
+        query = f"""
+            INSERT INTO stock_db.portfolio_history (
+                id, date, total_value, cash_balance, notes
+            ) VALUES (
+                {generate_id()},
+                '{datetime.now().strftime('%Y-%m-%d %H:%M:%S')}',
+                {total_value},
+                {cash_balance},
+                {f"'{notes}'" if notes else 'NULL'}
+            )
+        """
+        client.command(query)
+
+def get_latest_portfolio_value() -> Optional[dict]:
+    with create_client() as client:
+        query = """
+            SELECT total_value, cash_balance, date
+            FROM stock_db.portfolio_history
+            ORDER BY date DESC
+            LIMIT 1
+        """
+        result = client.query(query).result_rows
+        if result:
+            return {
+                'total_value': result[0][0],
+                'cash_balance': result[0][1],
+                'date': result[0][2]
+            }
+        return None
+
 @dataclass
 class TradeEntry:
     ticker: str

src/trading/main.py

@@ -1,21 +1,53 @@
 from datetime import datetime
 from trading.position_calculator import PositionCalculator
 from trading.portfolio import Portfolio, Position
+from trading.journal import (TradeEntry, add_trade, get_open_trades, 
+                           create_portfolio_table, update_portfolio_value, 
+                           get_latest_portfolio_value, get_datetime_input,
+                           get_order_type)
 
 def get_float_input(prompt: str) -> float:
     while True:
         try:
-            return float(input(prompt))
+            value = input(prompt)
+            if value.lower() in ['q', 'quit', 'exit']:
+                return None
+            return float(value)
         except ValueError:
             print("Please enter a valid number")
 
 def main():
-    # Get initial portfolio value from user
+    # Initialize tables
-    portfolio_value = get_float_input("Enter your portfolio value: $")
+    create_portfolio_table()
     
-    # Initialize portfolio and position calculator
+    # Get latest portfolio value or ask for initial value
-    portfolio = Portfolio()
+    portfolio_data = get_latest_portfolio_value()
-    calculator = PositionCalculator(account_size=portfolio_value)  # Use user's portfolio value
+    if portfolio_
+        portfolio_value = portfolio_data['total_value']
+        cash_balance = portfolio_data['cash_balance']
+        print(f"\nCurrent Portfolio Value: ${portfolio_value:.2f}")
+        print(f"Cash Balance: ${cash_balance:.2f}")
+        print(f"Last Updated: {portfolio_data['date']}")
+        
+        if input("\nUpdate portfolio value? (y/n): ").lower() == 'y':
+            new_value = get_float_input("Enter new portfolio value: $")
+            new_cash = get_float_input("Enter new cash balance: $")
+            notes = input("Notes (optional): ")
+            if new_value and new_cash:
+                portfolio_value = new_value
+                cash_balance = new_cash
+                update_portfolio_value(portfolio_value, cash_balance, notes)
+    else:
+        portfolio_value = get_float_input("Enter your initial portfolio value: $")
+        cash_balance = get_float_input("Enter your cash balance: $")
+        if portfolio_value and cash_balance:
+            update_portfolio_value(portfolio_value, cash_balance, "Initial portfolio setup")
+    
+    if not portfolio_value or not cash_balance:
+        return
+    
+    # Initialize calculator with current portfolio value
+    calculator = PositionCalculator(account_size=portfolio_value)
     
     while True:
         print("\nTrading Management System")
@@ -23,9 +55,10 @@ def main():
         print("2. Add Position")
         print("3. View Portfolio")
         print("4. Remove Position")
-        print("5. Exit")
+        print("5. Update Portfolio Value")
+        print("6. Exit")
         
-        choice = input("\nSelect an option (1-5): ")
+        choice = input("\nSelect an option (1-6): ")
         
         if choice == "1":
             try: