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import datetime
from serenitas.utils.db2 import dbconn
from tabulate import tabulate
from report_ops.misc import _recipients, _cc_recipients
from serenitas.utils.exchange import ExchangeMessage
from exchangelib import HTMLBody

_account_alias = {"V0NSCLMSPT": "6MZ20049"}


def email_fcm(em, d, fund):
    account = _account_alias.get(d["cash_account"], d["cash_account"])
    match d["cp_code"]:
        case "BAMSNY":
            recipients = _recipients["BAML_FCM"]
        case "GOLDNY":
            recipients = _recipients["GS_FCM"]
            additional_instructions = f"Could you please instruct moves from DCS 057575201 to Futures {account} to settle this trade? "
    em.send_email(
        f"FX Details: {account} Trade Date: {d['trade_date']}",
        HTMLBody(
            f"""
<html>
  <head>
    <style>
      table, th, td {{ border: 1px solid black;  border-collapse: collapse;}}
      th, td {{ padding: 5px; }}
    </style>
  </head>
  <body>
  Hello,<br><br>Please see below details for an FX Spot Trade we did with the desk today for account {account}. {additional_instructions if 'additional_instructions' in locals() else ""}Please let me know if you need more information.<br><br>{to_tabulate(d)}
  </body>
</html>"""
        ),
        to_recipients=recipients,
        cc_recipients=_cc_recipients[fund],
    )


def to_tabulate(d):
    if d["sell_currency"] == "USD":
        key1, key2 = "buy", "sell"
    else:
        key1, key2 = "sell", "buy"
    account = _account_alias.get(d["cash_account"], d["cash_account"])
    line = [
        account,
        d[f"{key1}_currency"],
        d[f"{key1}_amount"],
        d[f"{key2}_currency"],
        d["spot_rate"],
        d[f"{key2}_amount"],
        "Buy" if d["sell_currency"] == "USD" else "Sell",
        d["settle_date"],
    ]

    num_format = [("{0:,.2f}", 2), ("{0:.5f}", 4), ("{0:,.2f}", 5)]
    for f, i in num_format:
        line[i] = f.format(line[i])
    t = tabulate(
        [line],
        headers=[
            "account",
            "curr",
            "TotBal",
            "HomeCurrency",
            "fxRate",
            "convTotBal",
            "BuySell",
            "Value Date",
        ],
        tablefmt="unsafehtml",
    )
    return t


def main(trade_date, conn, fund, em):
    with conn.cursor() as c:
        c.execute(
            "SELECT spots.cash_account, buy_currency, sell_currency, buy_amount, sell_amount, spot_rate, settle_date, trade_date, spots.cp_code FROM spots "
            "LEFT JOIN accounts2 USING (cash_account) "
            "WHERE account_type in ('Fcm', 'Future') AND spots.cp_code in ('BAMSNY', 'GOLDNY') AND spots.trade_date =%s AND spots.fund=%s",
            (trade_date, fund),
        )
        for rec in c:
            d = rec._asdict()
            email_fcm(em, d, fund)


if __name__ == "__main__":
    import argparse

    parser = argparse.ArgumentParser()
    parser.add_argument(
        "date",
        nargs="?",
        type=datetime.date.fromisoformat,
        default=datetime.date.today(),
        help="working date",
    )
    args = parser.parse_args()
    conn = dbconn("dawndb")
    em = ExchangeMessage()
    for fund in (
        "SERCGMAST",
        "ISOSEL",
        "BOWDST",
    ):
        main(args.date, conn, fund, em)