from mod_python import apache, Session
from genshi.template import TemplateLoader, TemplateNotFound
from genshi import ParseError

def findtemplate(uri):
  templates = {"/" : "index.xml"}
  if uri in templates:
    return templates[uri]
  return None

def handler(req):
  session = Session.Session(req)
  try:
    session['hits'] += 1
  except:
    session['hits'] = 1

  session.save()

  template = findtemplate(req.uri)
  if template:

    loader = TemplateLoader([req.document_root()])
    try:
      req.content_type = "text/html; charset=UTF-8"
      tmpl = loader.load(template)
      stream = tmpl.generate(title='Hello World: Reloaded',
        hits=session['hits'])
      pagebuffer = stream.render('xhtml')
    except TemplateNotFound, tnf:
      req.content_type = "text/plain; charset=UTF-8"
      pagebuffer = str(tnf)
    except ParseError, pe:
      req.content_type = "text/plain; charset=UTF-8"
      pagebuffer = str(pe)

    #pagebuffer = "Hits: %d\n" % session['hits']
    #pagebuffer += "Yippieh: I found %s -> %s!" % (req.uri, template)
    
    req.write(pagebuffer)
    return (apache.OK)
  return (apache.HTTP_NOT_FOUND)