from steps.bibtex import BibtexStep
from steps.citentry import CitentryStep
from steps.crossref import CrossrefResponseStep
from steps.core import Step


class CitationFileStep(Step):
    step_links = [
        (
            "CITATION file introduction",
            "https://www.software.ac.uk/blog/2013-09-02-encouraging-citation-software-introducing-citation-files",
        ),
        (
            "CITATION file specifications for R",
            "http://r-pkgs.had.co.nz/inst.html#inst-citation",
        ),
    ]
    step_intro = "Software sometimes includes a plain text file called 'CITATION' that specifies the project's title and authors, particularly software written in R."
    step_more = (
        "The CITATION file can be parsed to extract this attribution information."
    )

    @property
    def starting_children(self):
        if self.host == "cran":
            return [BibtexStep, CrossrefResponseStep, CitentryStep]
        else:
            return [CrossrefResponseStep, CitentryStep, BibtexStep]

    def set_content_url(self, input):
        # in this case set_content does it, because it knows the url
        self.parent_content_url = input