import logging
from typing import Dict
from functools import reduce
from typing import Optional, Union

import numpy as np  # noqa
import pandas as pd  # noqa
import talib.abstract as ta
from pandas import DataFrame
from technical import qtpylib
from datetime import datetime
from pandas import Series

from freqtrade.strategy import IntParameter, IStrategy, merge_informative_pair  # noqa

import mlflow
import copy

logger = logging.getLogger(__name__)


class DoubleMAStrategy(IStrategy):

    # ## timeframe
    timeframe = "1d"

    minimal_roi = {
        "0": 10
    }

    process_only_new_candles = True
    # ## Stoploss

    # Optimal stoploss designed for the strategy.
    # This attribute will be overridden if the config file contains "stoploss".
    stoploss = -0.05
    trailing_stop = False
    trailing_stop_positive = 0.01
    trailing_stop_positive_offset = 0.017  # Disabled / not configured
    trailing_only_offset_is_reached = False

    # use_custom_stoploss = False

    use_custom_stoploss = False

    # ## Exit

    use_exit_signal = True

    exit_profit_only = False

    exit_profit_offset = 0.0

    ignore_roi_if_entry_signal = True

    # ## Candles

    process_only_new_candles = True
    startup_candle_count: int = 0

    # ## Short

    can_short = False

    unfilledtimeout = {
        "unit": "minutes",
        "entry": 30,
        "exit": 30,
        "exit_timeout_count": 0
    }

    # ## Candles

    process_only_new_candles = True
    startup_candle_count: int = 30

    def populate_indicators(self, dataframe: DataFrame, metadata: dict) -> DataFrame:  # noqa: C901
        # User creates their own custom strat here. Present example is a supertrend
        # based strategy.

        mlflow.set_tracking_uri("/freqtrade/user_data/mlruns")
        # logger.info(Path(dk.data_path / "mlruns"))
        mlflow.set_experiment("PAPER")
        # mlflow.autolog()

        with mlflow.start_run(run_name=f"dma_{metadata['pair']}") as run:
            cfg = copy.deepcopy(self.config)
            cfg.pop('api_server')
            cfg.pop('telegram')
            cfg.pop('original_config')
            mlflow.log_params(cfg)

        dataframe['ema_5'] = ta.EMA(dataframe, timeperiod=5)
        dataframe['ema_10'] = ta.EMA(dataframe, timeperiod=10)
        dataframe['ema_20'] = ta.EMA(dataframe, timeperiod=20)
        dataframe['ema_50'] = ta.EMA(dataframe, timeperiod=50)

        # dataframe["cross_buy"] = (qtpylib.crossed_above(
        #     dataframe['ema_5'], dataframe['ema_20']))

        dataframe["cross_buy"] = dataframe['ema_5'] > dataframe['ema_20']

        dataframe["trend_up"] = dataframe['ema_10'] > dataframe['ema_50']

        dataframe["cross_sell"] = dataframe['ema_5'] < dataframe['ema_20']

        dataframe["trend_down"] = dataframe['ema_10'] < dataframe['ema_50']

        return dataframe

    def populate_entry_trend(self, df: DataFrame, metadata: dict) -> DataFrame:

        df.loc[
            (
                df["trend_up"] &
                df["cross_buy"]
            ),
            ["enter_long"]] = 1

        return df

    def populate_exit_trend(self, df: DataFrame, metadata: dict) -> DataFrame:

        df.loc[
            (
                df["cross_sell"]
            ),
            ["exit_long"]] = 1

        return df