import os
from xml.dom.minidom import parse, parseString
from dynastie.generators.generator import DynastieGenerator
from dynastie.generators.index import Index
from django.db import models

class Article(Index):

    def _createArticle(self, article, dom, article_elem, root):
        self.createArticle(article, dom, article_elem, root)
        article_nodes = dom.getElementsByTagNameNS(self.URI, "article")
        article_elem = article_nodes[0]
        article_elem.parentNode.removeChild(article_elem)

    def generate(self, blog, src, output):
        from dynastie.models import Article, Blog

        hooks = {'article' : self._createArticle}

        if not os.path.exists(src + '/_article.html'):
            self.addError('No _article.html found, exiting')
            return self.report

        try:
            dom = parse(src + '/_article.html')
        except xml.dom.DOMException as e:
            self.addError('Error parsing _article.html : ' + e)
            return self.report
            
        if not os.path.exists(output + '/article'):
            os.mkdir(output + '/article')

        articles = Article.objects.all()

        for article in articles:
            #print 'Generate ' + filename
            nodes = dom.getElementsByTagName("*")
            nodes[0] = self.parse(src, hooks, article, dom, nodes[0])
            filename = output + '/article/' 
            filename = filename + article.creation_date.strftime("%Y") + '/' + article.creation_date.strftime("%m") + '/' 
            if not os.path.exists(filename):
                os.makedirs(filename)
            filename = filename + article.title_slug + '.html'
            self.writeIfNotTheSame(filename, nodes[0])
            dom = parse(src + '/_article.html')

        if not self.somethingWrote:
            self.addReport('Nothing changed')

        return self.report