import schedule
import time

from datetime import datetime
from dotenv import load_dotenv
from ibkr import Client
from iron_condor import enter_iron_condor
from multiprocessing import Process
from os import getenv
from pytz import timezone

load_dotenv()

eastern_timezone = 'America/New_York'

def enter_trade():
    job_process = Process(target = enter_iron_condor)
    job_process.start()

def connection_successful():
    try:
        ibkr_host = getenv('IBKR_HOST')
        ibkr_port = getenv('IBKR_PORT')
        Client(host = ibkr_host, port = ibkr_port)
        return True
    except:
        return False

if __name__ == '__main__':
    if connection_successful():
        print('Connected to IBKR.')

        now = datetime.now(timezone(eastern_timezone))

        entry_times = getenv('ENTRY_TIMES').split(',')
        for entry_time in entry_times:
            schedule_time = datetime.strptime(entry_time, '%H:%M:%S').replace(
                year = now.year, 
                month = now.month, 
                day = now.day,
                tzinfo = now.tzinfo
            )

            # Prevent scheduling for times that have already elapsed.
            if schedule_time > now:
                print(f'Scheduling for {entry_time}.')
                schedule.every().day.at(entry_time, eastern_timezone).do(enter_trade, schedule_time)

        while True:
            schedule.run_pending()
            time.sleep(1)
    else:
        print('ERROR: Cannot connect to IBKR. Ensure that TWS / Gateway is running.')