import wikipediaapi

from .utils import Utils
from.rake import Rake


class Subject(Utils, Rake):
    def __init__(self, subject, bs_parser="lxml"):
        Utils.__init__(self, latin_encoder="latin-1")
        Rake.__init__(self)
        self.subject = subject
        self.bs_parser = bs_parser
        self.wikipedia = wikipediaapi.Wikipedia(language='en',
                    extract_format=wikipediaapi.ExtractFormat.WIKI)
        # lazy loaded
        self.wikipedia_object = None

    def _get_wiki_object(self):
        if not self.wikipedia_object:
            self.wikipedia_object = self.wikipedia.page(self.subject)

    def _get_links(self):
        if not self.wikipedia_object:
            self._get_wiki_object()
        return self.wikipedia_object.links

    def _get_url(self):
        if not self.wikipedia_object:
            self._get_wiki_object()
        return self.wikipedia_object.fullurl

    def _check_page_exists(self):
        if not self.wikipedia_object:
            self._get_wiki_object()
        return self.wikipedia_object.exists()
        
    def _get_summary(self):
        if not self.wikipedia_object:
            self._get_wiki_object()
        return self.wikipedia_object.summary

    def _get_content(self):
        if not self.wikipedia_object:
            self._get_wiki_object()
        return self.wikipedia_object.text

    # def _get_html(self):
    #     if not self.wikipedia_object:
    #         self._get_wiki_object()
    #     return self.wikipedia_object.html

    def get_meta(self):
        if not self.wikipedia_object:
            self._get_wiki_object()
        self.meta["url"] = self.wikipedia_object.fullurl
        self.meta["title"] = self.wikipedia_object.title

    def get_top_keywords_with_score_from_rake(self):
        return self.get_keyphrases_with_score(self._get_content()) 

    def get_top_keywords_from_rake(self):
        return self.get_keyphrases(self._get_content())