# pragma pylint: disable=missing-docstring, too-many-arguments, too-many-ancestors
import re
from datetime import datetime
from random import randint
from unittest.mock import MagicMock

import pytest
from telegram import Bot, Update, Message, Chat
from telegram.error import NetworkError

from freqtrade.main import init, create_trade
from freqtrade.misc import update_state, State, get_state
from freqtrade.persistence import Trade
from freqtrade.rpc import telegram
from freqtrade.rpc.telegram import (
    _status, _status_table, _profit, _forcesell, _performance, _count, _start, _stop, _balance,
    authorized_only, _help, is_enabled, send_msg
)


class MagicBot(MagicMock, Bot):
    pass


def test_is_enabled(default_conf, mocker):
    mocker.patch.dict('freqtrade.rpc.telegram._CONF', default_conf)
    default_conf['telegram']['enabled'] = False
    assert is_enabled() is False


def test_init_disabled(default_conf, mocker):
    mocker.patch.dict('freqtrade.rpc.telegram._CONF', default_conf)
    default_conf['telegram']['enabled'] = False
    telegram.init(default_conf)


def test_authorized_only(default_conf, mocker):
    mocker.patch.dict('freqtrade.rpc.telegram._CONF', default_conf)

    chat = Chat(0, 0)
    update = Update(randint(1, 100))
    update.message = Message(randint(1, 100), 0, datetime.utcnow(), chat)
    state = {'called': False}

    @authorized_only
    def dummy_handler(*args, **kwargs) -> None:
        state['called'] = True

    dummy_handler(MagicMock(), update)
    assert state['called'] is True


def test_authorized_only_unauthorized(default_conf, mocker):
    mocker.patch.dict('freqtrade.rpc.telegram._CONF', default_conf)

    chat = Chat(0xdeadbeef, 0)
    update = Update(randint(1, 100))
    update.message = Message(randint(1, 100), 0, datetime.utcnow(), chat)
    state = {'called': False}

    @authorized_only
    def dummy_handler(*args, **kwargs) -> None:
        state['called'] = True

    dummy_handler(MagicMock(), update)
    assert state['called'] is False


def test_authorized_only_exception(default_conf, mocker):
    mocker.patch.dict('freqtrade.rpc.telegram._CONF', default_conf)

    update = Update(randint(1, 100))
    update.message = Message(randint(1, 100), 0, datetime.utcnow(), Chat(0, 0))

    @authorized_only
    def dummy_handler(*args, **kwargs) -> None:
        raise Exception('test')

    dummy_handler(MagicMock(), update)


def test_status_handle(default_conf, update, ticker, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock(),
                          get_ticker=ticker)
    init(default_conf, 'sqlite://')

    update_state(State.STOPPED)
    _status(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'trader is not running' in msg_mock.call_args_list[0][0][0]
    msg_mock.reset_mock()

    update_state(State.RUNNING)
    _status(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'no active trade' in msg_mock.call_args_list[0][0][0]
    msg_mock.reset_mock()

    # Create some test data
    trade = create_trade(15.0)
    assert trade
    Trade.session.add(trade)
    Trade.session.flush()

    # Trigger status while we have a fulfilled order for the open trade
    _status(bot=MagicBot(), update=update)

    assert msg_mock.call_count == 2
    assert '[BTC_ETH]' in msg_mock.call_args_list[-1][0][0]


def test_status_table_handle(default_conf, update, ticker, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple(
        'freqtrade.main.telegram',
        _CONF=default_conf,
        init=MagicMock(),
        send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock(),
                          get_ticker=ticker,
                          buy=MagicMock(return_value='mocked_order_id'))
    init(default_conf, 'sqlite://')
    update_state(State.STOPPED)
    _status_table(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'trader is not running' in msg_mock.call_args_list[0][0][0]
    msg_mock.reset_mock()

    update_state(State.RUNNING)
    _status_table(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'no active order' in msg_mock.call_args_list[0][0][0]
    msg_mock.reset_mock()

    # Create some test data
    trade = create_trade(15.0)
    assert trade
    Trade.session.add(trade)
    Trade.session.flush()

    _status_table(bot=MagicBot(), update=update)

    text = re.sub('</?pre>', '', msg_mock.call_args_list[-1][0][0])
    line = text.split("\n")
    fields = re.sub('[ ]+', ' ', line[2].strip()).split(' ')

    assert int(fields[0]) == 1
    assert fields[1] == 'BTC_ETH'
    assert msg_mock.call_count == 2


def test_profit_handle(default_conf, update, ticker, limit_buy_order, limit_sell_order, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock(),
                          get_ticker=ticker)
    init(default_conf, 'sqlite://')

    _profit(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'no closed trade' in msg_mock.call_args_list[0][0][0]
    msg_mock.reset_mock()

    # Create some test data
    trade = create_trade(15.0)
    assert trade

    # Simulate fulfilled LIMIT_BUY order for trade
    trade.update(limit_buy_order)

    _profit(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 2
    assert 'no closed trade' in msg_mock.call_args_list[-1][0][0]
    msg_mock.reset_mock()

    # Simulate fulfilled LIMIT_SELL order for trade
    trade.update(limit_sell_order)

    trade.close_date = datetime.utcnow()
    trade.is_open = False
    Trade.session.add(trade)
    Trade.session.flush()

    _profit(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert '*ROI:* `1.50701325 (10.05%)`' in msg_mock.call_args_list[-1][0][0]
    assert 'Best Performing:* `BTC_ETH: 10.05%`' in msg_mock.call_args_list[-1][0][0]


def test_forcesell_handle(default_conf, update, ticker, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock(),
                          get_ticker=ticker)
    init(default_conf, 'sqlite://')

    # Create some test data
    trade = create_trade(15.0)
    assert trade

    Trade.session.add(trade)
    Trade.session.flush()

    update.message.text = '/forcesell 1'
    _forcesell(bot=MagicBot(), update=update)

    assert msg_mock.call_count == 2
    assert 'Selling [BTC/ETH]' in msg_mock.call_args_list[-1][0][0]
    assert '0.07256061 (profit: ~-0.64%)' in msg_mock.call_args_list[-1][0][0]


def test_forcesell_handle_invalid(default_conf, update, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock())
    init(default_conf, 'sqlite://')

    # Trader is not running
    update_state(State.STOPPED)
    update.message.text = '/forcesell 1'
    _forcesell(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'not running' in msg_mock.call_args_list[0][0][0]

    # No argument
    msg_mock.reset_mock()
    update_state(State.RUNNING)
    update.message.text = '/forcesell'
    _forcesell(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'Invalid argument' in msg_mock.call_args_list[0][0][0]

    # Invalid argument
    msg_mock.reset_mock()
    update_state(State.RUNNING)
    update.message.text = '/forcesell 123456'
    _forcesell(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'no open trade' in msg_mock.call_args_list[0][0][0]


def test_performance_handle(default_conf, update, ticker, limit_buy_order, limit_sell_order, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock(),
                          get_ticker=ticker)
    init(default_conf, 'sqlite://')

    # Create some test data
    trade = create_trade(15.0)
    assert trade

    # Simulate fulfilled LIMIT_BUY order for trade
    trade.update(limit_buy_order)

    # Simulate fulfilled LIMIT_SELL order for trade
    trade.update(limit_sell_order)

    trade.close_date = datetime.utcnow()
    trade.is_open = False
    Trade.session.add(trade)
    Trade.session.flush()

    _performance(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 2
    assert 'Performance' in msg_mock.call_args_list[-1][0][0]
    assert '<code>BTC_ETH\t10.05%</code>' in msg_mock.call_args_list[-1][0][0]


def test_count_handle(default_conf, update, ticker, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple(
        'freqtrade.main.telegram',
        _CONF=default_conf,
        init=MagicMock(),
        send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock(),
                          get_ticker=ticker,
                          buy=MagicMock(return_value='mocked_order_id'))
    init(default_conf, 'sqlite://')
    update_state(State.STOPPED)
    _count(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'not running' in msg_mock.call_args_list[0][0][0]
    msg_mock.reset_mock()
    update_state(State.RUNNING)

    # Create some test data
    trade = create_trade(15.0)
    trade2 = create_trade(15.0)
    assert trade
    assert trade2
    Trade.session.add(trade)
    Trade.session.add(trade2)
    Trade.session.flush()

    _count(bot=MagicBot(), update=update)
    line = msg_mock.call_args_list[-1][0][0].split("\n")
    assert line[2] == '{}/{}'.format(2, default_conf['max_open_trades'])


def test_performance_handle_invalid(default_conf, update, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch('freqtrade.main.get_buy_signal', side_effect=lambda _: True)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          validate_pairs=MagicMock())
    init(default_conf, 'sqlite://')

    # Trader is not running
    update_state(State.STOPPED)
    _performance(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert 'not running' in msg_mock.call_args_list[0][0][0]


def test_start_handle(default_conf, update, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          _CONF=default_conf,
                          init=MagicMock())
    init(default_conf, 'sqlite://')
    update_state(State.STOPPED)
    assert get_state() == State.STOPPED
    _start(bot=MagicBot(), update=update)
    assert get_state() == State.RUNNING
    assert msg_mock.call_count == 0


def test_start_handle_already_running(default_conf, update, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          _CONF=default_conf,
                          init=MagicMock())
    init(default_conf, 'sqlite://')
    update_state(State.RUNNING)
    assert get_state() == State.RUNNING
    _start(bot=MagicBot(), update=update)
    assert get_state() == State.RUNNING
    assert msg_mock.call_count == 1
    assert 'already running' in msg_mock.call_args_list[0][0][0]


def test_stop_handle(default_conf, update, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          _CONF=default_conf,
                          init=MagicMock())
    init(default_conf, 'sqlite://')
    update_state(State.RUNNING)
    assert get_state() == State.RUNNING
    _stop(bot=MagicBot(), update=update)
    assert get_state() == State.STOPPED
    assert msg_mock.call_count == 1
    assert 'Stopping trader' in msg_mock.call_args_list[0][0][0]


def test_stop_handle_already_stopped(default_conf, update, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          _CONF=default_conf,
                          init=MagicMock())
    init(default_conf, 'sqlite://')
    update_state(State.STOPPED)
    assert get_state() == State.STOPPED
    _stop(bot=MagicBot(), update=update)
    assert get_state() == State.STOPPED
    assert msg_mock.call_count == 1
    assert 'already stopped' in msg_mock.call_args_list[0][0][0]


def test_balance_handle(default_conf, update, mocker):
    mock_balance = [{
        'Currency': 'BTC',
        'Balance': 10.0,
        'Available': 12.0,
        'Pending': 0.0,
        'CryptoAddress': 'XXXX',
    }, {
        'Currency': 'ETH',
        'Balance': 0.0,
        'Available': 0.0,
        'Pending': 0.0,
        'CryptoAddress': 'XXXX',
    }]
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)
    mocker.patch.multiple('freqtrade.main.exchange',
                          get_balances=MagicMock(return_value=mock_balance))

    _balance(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert '*Currency*: BTC' in msg_mock.call_args_list[0][0][0]
    assert 'Balance' in msg_mock.call_args_list[0][0][0]


def test_help_handle(default_conf, update, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    msg_mock = MagicMock()
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock(),
                          send_msg=msg_mock)

    _help(bot=MagicBot(), update=update)
    assert msg_mock.call_count == 1
    assert '*/help:* `This help message`' in msg_mock.call_args_list[0][0][0]


def test_send_msg(default_conf, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock())
    bot = MagicMock()
    send_msg('test', bot)
    assert len(bot.method_calls) == 0
    bot.reset_mock()

    default_conf['telegram']['enabled'] = True
    send_msg('test', bot)
    assert len(bot.method_calls) == 1


def test_send_msg_network_error(default_conf, mocker):
    mocker.patch.dict('freqtrade.main._CONF', default_conf)
    mocker.patch.multiple('freqtrade.main.telegram',
                          _CONF=default_conf,
                          init=MagicMock())
    default_conf['telegram']['enabled'] = True
    bot = MagicMock()
    bot.send_message = MagicMock(side_effect=NetworkError('Oh snap'))
    with pytest.raises(NetworkError, match=r'Oh snap'):
        send_msg('test', bot)

    # Bot should've tried to send it twice
    assert len(bot.method_calls) == 2