import argparse
import logging
import numpy as np
import pandas as pd
import os
import time

from .cds import download_cds_data, download_composite_data
from .loans import download_facility, insert_facility, download_marks, update_facility
from .rates import downloadMarkitIRData
from .import_quotes import insert_cds, insert_index, insert_tranche
from pandas.tseries.offsets import BDay
from sqlalchemy import create_engine
from utils import SerenitasFileHandler
from utils.db import dbconn

# parse arguments
parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument(
    "-l", "--loans", action="store_true", help="download markit loan data"
)
group.add_argument("-c", "--cds", action="store_true", help="download markit cds data")
group.add_argument("-r", "--rates", action="store_true", help="download markit IR data")
parser.add_argument(
    "-i", "--insert-only", action="store_true", help="do not re-download data"
)
parser.add_argument(
    "workdate", nargs="?", type=lambda s: pd.datetime.strptime(s, "%Y-%m-%d").date()
)


def default_date():
    return (pd.datetime.today() - BDay(1)).date()


args = parser.parse_args()
historical = True
if args.workdate is None:
    if not args.rates:
        historical = False
        workdate = default_date()
    else:
        workdate = pd.datetime.today().date()
else:
    workdate = args.workdate

if args.loans:
    fh = SerenitasFileHandler("markit_loans.log")
elif args.cds:
    fh = SerenitasFileHandler("markit_cds.log")
elif args.rates:
    fh = SerenitasFileHandler("markit_rates.log")

# set up logging
logger = logging.getLogger("markit")
logger.addHandler(fh)
logger.setLevel(logging.INFO)

if args.loans:
    payload = {"LEGALENTITY": "lmcg", "USERNAME": "serecapuser", "PASSWORD": "Welcome1"}

    download_facility(workdate, payload)
    logger.info("facility downloaded")
    insert_facility(workdate)
    logger.info("facility inserted")
    payload.update({"RELATIVEVERSION": np.busday_count(default_date(), workdate)})
    download_marks(workdate, payload)
    logger.info("marks downloaded")
    payload.pop("RELATIVEVERSION")
    update_facility(workdate, payload)
    logger.info("facility updated")

elif args.cds:
    payload = {
        "user": "GuillaumeHorel",
        "password": "password",
        "version": "5",
        "format": "csv",
        "report": "FIXED_COUPON",
        "date": workdate.strftime("%Y%m%d"),
        "type": "CDS",
    }
    if not args.insert_only:
        download_cds_data(payload)
        payload.update({"type": "CredIndex", "version": 4})
        download_composite_data(payload, historical)
    serenitasdb = dbconn("serenitasdb")
    insert_cds(serenitasdb, workdate)
    serenitasdb.close()
    if not args.insert_only:
        engine = create_engine("postgresql://serenitas_user@debian/serenitasdb")
        insert_index(engine, workdate)
        insert_tranche(engine, workdate)

elif args.rates:
    for curr in ["USD", "EUR", "JPY"]:
        retry = 0
        while retry < 10:
            try:
                downloadMarkitIRData(workdate, currency=curr)
            except ValueError as e:
                logger.error(e)
                logger.error(f"Could not download {curr} rates for date {workdate}")
                time.sleep(30)
                retry += 1
            else:
                logger.info(f"Downloaded {curr} rates")
                break