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from patchtracker import Conf
from patchtracker.DiffGzHandler import DiffGzHandler
from patchtracker.SourceArchive import ReleaseList

from Cheetah.Template import Template
from Cheetah.Compiler import Compiler
import os, errno
import re

class OurTemplate(Template):
  def __init__(self, file, searchList=None):
    ourSearchList={"conf":Conf, "crumbs":[]}
    if searchList:
      for k,v in searchList.iteritems():
        ourSearchList[k]=v
    self.escape_name = self._escape_name
    self.link = self._link
    Template.__init__(self, file=file, searchList=ourSearchList)

  def _link(self, where, name):
    return str("<a href=\"%s\">%s</a>"%(where,name))

  def _escape_name(self, name):
    return re.sub("([^a-zA-Z0-9-])", (lambda x: "_%d"%(ord(x.group(1)))), name)


class PackageVersTemplate(OurTemplate):
  def __init__(self, srcpkg):
    self.src = srcpkg
    tpl=os.sep.join([Conf.template_dir, "package_vers.tmpl"])
    sl = {}
    if srcpkg.diffgz_name:
      dfile = os.sep.join([Conf.archive_root,srcpkg.loc,srcpkg.diffgz_name])
      sl['diffhandler'] = DiffGzHandler(dfile)
    else:
      sl['diffhandler'] = None
    sl['crumbs'] = [("package/"+srcpkg.name,srcpkg.name),
                    ("package/"+srcpkg.name+"/"+srcpkg.version,
                     srcpkg.name+"/"+srcpkg.version)]
    OurTemplate.__init__(self, file=tpl, searchList=sl)

class FrontPageTemplate(OurTemplate):
  def __init__(self, indices):
    tpl = os.sep.join([Conf.template_dir, "frontpage.tmpl"])
    OurTemplate.__init__(self, file=tpl)
    self.indices = indices

class LetterTocTemplate(OurTemplate):
  def __init__(self, letter, collection):
    self.pkgs = collection
    self.idx = letter
    self.dists = ReleaseList("debian")
    sl = {}
    sl['crumbs'] = [("index/"+letter,"index for "+letter)]
    tpl = os.sep.join([Conf.template_dir, "letter_toc.tmpl"])
    OurTemplate.__init__(self, file=tpl, searchList=sl)

class SearchResultsTemplate(OurTemplate):
  def __init__(self, search, collection):
    self.pkgs = {}
    self.idx = search
    self.dists = ReleaseList("debian")
    for idx in collection.indices():
      for name,packagelist in collection.getletter(idx).iteritems():
        self.pkgs[name] = packagelist
    tpl = os.sep.join([Conf.template_dir, "searchresults.tmpl"])
    OurTemplate.__init__(self, file=tpl)


class ErrorTemplate(OurTemplate):
  def __init__(self, msg):
    tpl = os.sep.join([Conf.template_dir, "cgi_error.tmpl"])
    OurTemplate.__init__(self, file=tpl, searchList={'error':msg})

class PatchTemplate(OurTemplate):
  def __init__(self, pkg=None, vers=None, name=None, patch=None,patchtype=None):
    tpl = os.sep.join([Conf.template_dir, "patch_view.tmpl"])
    sl = {'package':pkg, 'version':vers, 'name':name, 
          'patch':patch, 'patchtype':patchtype}
    sl['crumbs'] = [("package/"+pkg,pkg),
                    ("package/"+pkg+"/"+vers, pkg+"/"+vers)]
    if patchtype == "debianonly":
      sl['crumbs'].append( ("patch/%s/view/%s/%s"%(patchtype,pkg,vers),
                            "./debian-dir only patch") )
    elif patchtype == "series":
      sl['crumbs'].append(("patch/%s/view/%s/%s/%s"%(patchtype,pkg,vers,name),
                           "series patch "+name) )
    elif patchtype == "misc":
      sl['crumbs'].append(("patch/%s/view/%s/%s/%s"%(patchtype,pkg,vers,name),
                           "direct patch of "+name) )
    OurTemplate.__init__(self, file=tpl, searchList=sl)