fisk/core/trading/assetfilter.py

def get_allowed(group, base, quote, direction):
    """
    Determine whether the trade is allowed according to the group.
    See tests for examples. The logic requires trading knowledge.
    :param group: The group to check
    :param base: The base currency
    :param quote: The quote currency
    :param direction: The direction of the trade
    """

    allowed = group.allowed
    if not isinstance(allowed, dict):
        return False

    # If our base has allowed == False, we can only short it, or long the quote
    if base in allowed:
        if not allowed[base]:
            if direction == "long":
                return False
        else:
            if direction == "short":
                return False

    # If our quote has allowed == False, we can only long it, or short the base
    if quote in allowed:
        if not allowed[quote]:
            if direction == "short":
                return False
        else:
            if direction == "long":
                return False

    return True


def check_asset_aggregation(value, trigger_above, trigger_below):
    """
    Check if the value is within the bounds of the aggregation.
    :param value: The value to check
    :param trigger_above: Only trigger if the value is above this
    :param trigger_below: Only trigger if the value is below this
    """
    # If both are defined
    if trigger_above is not None and trigger_below is not None:
        if value > trigger_above and value < trigger_below:
            return True
        return False
    if trigger_below is not None:
        if value < trigger_below:
            # Value is less than lower bound, match
            return True
    if trigger_above is not None:
        if value > trigger_above:
            return True
    return False