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

from vsg.token import conditional_variable_assignment as token
from vsg.vhdlFile import utils
from vsg.vhdlFile.classify import conditional_expressions


def detect(iToken, lObjects):
    """
    conditional_variable_assignment ::=
        target := 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 not utils.find_in_range("with", iToken, ";", lObjects):
            if utils.find_in_range("when", iToken, ";", lObjects):
                return True
    return False


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

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

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

    return iCurrent
