from datetime import datetime
from screener.t_sunnyband import run_sunny_scanner
from screener.t_atr_ema import run_atr_ema_scanner
from screener.t_atr_ema_v2 import run_atr_ema_scanner_v2

def run_technical_scanner(scanner_choice: str, start_date: str, end_date: str, 
                         min_price: float, max_price: float, min_volume: int, 
                         portfolio_size: float, interval: str = "1d"):
    """
    Run the selected technical scanner with provided parameters
    
    Args:
        scanner_choice (str): Type of scanner to run
        start_date (str): Start date in YYYY-MM-DD format
        end_date (str): End date in YYYY-MM-DD format
        min_price (float): Minimum stock price
        max_price (float): Maximum stock price
        min_volume (int): Minimum volume
        portfolio_size (float): Portfolio size for position sizing
        interval (str): Time interval for data (default: "1d")
    """
    # Convert string dates to datetime objects
    start_dt = datetime.strptime(start_date, "%Y-%m-%d")
    end_dt = datetime.strptime(end_date, "%Y-%m-%d")
    
    scanner_map = {
        "sunnybands": lambda: run_sunny_scanner(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt),
        "atr-ema": lambda: run_atr_ema_scanner(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt),
        "atr-ema_v2": lambda: run_atr_ema_scanner_v2(min_price, max_price, min_volume, portfolio_size, interval, start_dt, end_dt)
    }
    
    scanner_func = scanner_map.get(scanner_choice)
    if scanner_func:
        return scanner_func()
    else:
        raise ValueError(f"Invalid scanner choice: {scanner_choice}")