# -*- coding: utf-8 -*-

from vsg.token import conditional_force_assignment as token
from vsg.vhdlFile import utils
from vsg.vhdlFile.classify import conditional_expressions, force_mode


def detect(iToken, lObjects):
    """
    conditional_force_assignment ::=
        target <= force [ force_mode ] conditional_expressions ;
    """

    if utils.is_next_token_one_of(["when", "if", "elsif", "else"], iToken, lObjects):
        return False
    if utils.find_in_range("<=", iToken, ";", lObjects):  #
        if utils.find_in_range("force", iToken, ";", lObjects):
            return classify(iToken, lObjects)
    return iToken


def classify(iToken, lObjects):
    iCurrent = utils.assign_tokens_until("<=", token.target, iToken, lObjects)
    iCurrent = utils.assign_next_token_required("<=", token.assignment, iCurrent, lObjects)
    iCurrent = utils.assign_next_token_required("force", token.force_keyword, iCurrent, lObjects)

    iCurrent = force_mode.detect(iCurrent, lObjects)

    iCurrent = conditional_expressions.classify_until([";"], iCurrent, lObjects)

    iCurrent = utils.assign_next_token_required(";", token.semicolon, iCurrent, lObjects)

    return iCurrent
