terom@5: 
terom@5: """
terom@5:     HTML output
terom@5: """
terom@5: 
terom@5: import os.path
terom@5: 
terom@13: def urljoin (*parts) :
terom@13:     url = ""
terom@13: 
terom@13:     for part in parts :
terom@13:         if part :
terom@13:             if url :
terom@13:                 url += "/" + part
terom@13:             else :
terom@13:                 url += part
terom@13: 
terom@13:     return url
terom@13: 
terom@22: class BaseFormatter (object) :
terom@22:     """
terom@22:         Trivial HTML template formatter.
terom@22:     """
terom@22: 
terom@22:     def __init__ (self, basedir, encoding = 'utf-8') :
terom@22:         """
terom@22:                 basedir     - directory containing the required .html files
terom@22:                 encoding    - unicode encoding of file content (default: utf-8)
terom@22:         """
terom@22: 
terom@22:         self.basedir = os.path.abspath(basedir)
terom@22:         self.encoding = encoding
terom@22: 
terom@22:     def render (self, name, **vars) :
terom@22:         """
terom@22:             Format and return given template.
terom@22: 
terom@22:                 name        - basename of template without .html
terom@22:                 **vars      - template context
terom@22: 
terom@22:             The template is rendered and returned as unicode.
terom@22:         """
terom@22: 
terom@22:         path = os.path.join(self.basedir, name) + '.html'
terom@22:         
terom@22:         # read contents
terom@22:         data = open(path).read().decode(self.encoding)
terom@22: 
terom@22:         # format
terom@22:         return data % vars
terom@22: 
terom@22: 
terom@22: # XXX: legacy
terom@22: class Formatter (BaseFormatter) :
terom@22: 
terom@5:     TEMPLATE_DIR = 'etc/templates'
terom@5: 
terom@5:     IMG_URL = '%(prefix)s?t=%(target)s&s=%(style)&i=%(interval)s'
terom@5:     TARGET_URL = '%(prefix)s?t=%(target)s'
terom@5: 
terom@5:     def __init__ (self, template_dir=TEMPLATE_DIR, url_prefix='', img_url=IMG_URL, target_url=TARGET_URL) :
terom@22:         BaseFormatter.__init__(self, template_dir, 'utf-8')
terom@22: 
terom@5:         self.url_prefix = url_prefix
terom@5:         self.img_url = img_url
terom@5:         self.target_url = target_url
terom@5: 
terom@5:     def page (self, content) :
terom@5:         """
terom@5:             Format page contents
terom@5:         """
terom@5: 
terom@25:         return self.render('layout', 
terom@25:                 title       = 'MRTG',
terom@25:                 breadcrumb  = '',   # XXX: not supported
terom@25:                 content     = content
terom@25:         )
terom@5: 
terom@5:     def fmt_img_url (self, style, interval, target) :
terom@5:         return self.img_url % dict(
terom@5:             prefix      = self.url_prefix,
terom@11:             target      = target,
terom@5:             style       = style,
terom@5:             interval    = interval,
terom@5:         )
terom@5: 
terom@5:     def fmt_target_url (self, target) :
terom@5:         return self.target_url % dict(
terom@5:             prefix      = self.url_prefix,
terom@11:             target      = target,
terom@5:         )
terom@5: 
terom@25:     def overview (self, dirname, targets) :
terom@5:         """
terom@11:             Format target listing for given list of (target, title) pairs
terom@5:         """
terom@5: 
terom@22:         return self.page(self.render('overview', 
terom@25:             dir                 = dirname,
terom@25:             overview_subdirs    = '',   # XXX: not supported
terom@25:             overview_graphs     = '\n'.join(
terom@22:                 self.render('overview-target',
terom@11:                     title               = title,
terom@5:                     daily_overview_img  = self.fmt_img_url('overview', 'daily', target),
terom@5:                     target_url          = self.fmt_target_url(target),
terom@5: 
terom@11:                 ) for target, title in targets
terom@25:             ),
terom@5:         ))
terom@5: 
terom@11:     def target (self, target, title) :
terom@5:         """
terom@5:             Format a specific target
terom@5:         """
terom@5:         
terom@22:         return self.page(self.render('target',
terom@11:             title               = title,
terom@5:             daily_img           = self.fmt_img_url('detail', 'daily', target),
terom@5:             weekly_img          = self.fmt_img_url('detail', 'weekly', target),
terom@5:             yearly_img          = self.fmt_img_url('detail', 'yearly', target),
terom@5:         ))
terom@5: