from django.conf import settings
from xml.dom.minidom import parse, parseString


def toc_from_xml(active_chapter,active_section):
    dom=parse(settings.DATA_DIR+'course.xml')

    course = dom.getElementsByTagName('course')[0]
    name=course.getAttribute("name")
    chapters = course.getElementsByTagName('chapter')
    ch=list()
    for c in chapters:
        sections=list()
        for s in c.getElementsByTagName('section'):
            sections.append({'name':s.getAttribute("name"), 
                             'time':s.getAttribute("time"), 
                             'format':s.getAttribute("format"), 
                             'due':s.getAttribute("due"),
                             'active':(c.getAttribute("name")==active_chapter and \
                                           s.getAttribute("name")==active_section)})
        ch.append({'name':c.getAttribute("name"), 
                   'sections':sections,
                   'active':(c.getAttribute("name")==active_chapter)})
    return ch