from unittest.mock import MagicMock, PropertyMock

import pytest

from freqtrade.configuration.config_setup import setup_utils_configuration
from freqtrade.data.history.history_utils import download_data_main
from freqtrade.enums import RunMode
from freqtrade.exceptions import OperationalException
from tests.conftest import EXMS, log_has, patch_exchange


def test_download_data_main_no_markets(mocker, caplog):
    dl_mock = mocker.patch('freqtrade.data.history.history_utils.refresh_backtest_ohlcv_data',
                           MagicMock(return_value=["ETH/BTC", "XRP/BTC"]))
    patch_exchange(mocker, id='binance')
    mocker.patch(f'{EXMS}.get_markets', return_value={})
    config = setup_utils_configuration({"exchange": "binance"}, RunMode.UTIL_EXCHANGE)
    config.update({
        "days": 20,
        "pairs": ["ETH/BTC", "XRP/BTC"],
        "timeframes": ["5m", "1h"]
    })
    download_data_main(config)
    assert dl_mock.call_args[1]['timerange'].starttype == "date"
    assert log_has("Pairs [ETH/BTC,XRP/BTC] not available on exchange Binance.", caplog)


def test_download_data_main_all_pairs(mocker, markets):

    dl_mock = mocker.patch('freqtrade.data.history.history_utils.refresh_backtest_ohlcv_data',
                           MagicMock(return_value=["ETH/BTC", "XRP/BTC"]))
    patch_exchange(mocker)
    mocker.patch(f'{EXMS}.markets', PropertyMock(return_value=markets))

    config = setup_utils_configuration({"exchange": "binance"}, RunMode.UTIL_EXCHANGE)
    config.update({
        "pairs": [".*/USDT"],
        "timeframes": ["5m", "1h"]
    })
    download_data_main(config)
    expected = set(['BTC/USDT', 'ETH/USDT', 'XRP/USDT', 'NEO/USDT', 'TKN/USDT'])
    assert set(dl_mock.call_args_list[0][1]['pairs']) == expected
    assert dl_mock.call_count == 1

    dl_mock.reset_mock()

    config.update({
        "pairs": [".*/USDT"],
        "timeframes": ["5m", "1h"],
        "include_inactive": True
    })
    download_data_main(config)
    expected = set(['BTC/USDT', 'ETH/USDT', 'LTC/USDT', 'XRP/USDT', 'NEO/USDT', 'TKN/USDT'])
    assert set(dl_mock.call_args_list[0][1]['pairs']) == expected


def test_download_data_main_trades(mocker):
    dl_mock = mocker.patch('freqtrade.data.history.history_utils.refresh_backtest_trades_data',
                           MagicMock(return_value=[]))
    convert_mock = mocker.patch('freqtrade.data.history.history_utils.convert_trades_to_ohlcv',
                                MagicMock(return_value=[]))
    patch_exchange(mocker)
    mocker.patch(f'{EXMS}.get_markets', return_value={})
    config = setup_utils_configuration({"exchange": "binance"}, RunMode.UTIL_EXCHANGE)
    config.update({
        "days": 20,
        "pairs": ["ETH/BTC", "XRP/BTC"],
        "timeframes": ["5m", "1h"],
        "download_trades": True,
    })
    download_data_main(config)

    assert dl_mock.call_args[1]['timerange'].starttype == "date"
    assert dl_mock.call_count == 1
    assert convert_mock.call_count == 1
    config.update({
        "download_trades": True,
        "trading_mode": "futures",
    })

    with pytest.raises(OperationalException,
                       match="Trade download not supported for futures."):
        download_data_main(config)


def test_download_data_main_data_invalid(mocker):
    patch_exchange(mocker, id="kraken")
    mocker.patch(f'{EXMS}.get_markets', return_value={})
    config = setup_utils_configuration({"exchange": "kraken"}, RunMode.UTIL_EXCHANGE)
    config.update({
        "days": 20,
        "pairs": ["ETH/BTC", "XRP/BTC"],
        "timeframes": ["5m", "1h"],
    })
    with pytest.raises(OperationalException, match=r"Historic klines not available for .*"):
        download_data_main(config)