"""Routines for presentation of list-specific HTML text."""

__version__ = "$Revision: 415 $"


import os
import regsub 
import string
import mm_cfg, mm_utils
import htmlformat

class HTMLFormatter:
    def InitVars(self):
	self._template_dir = os.path.join(mm_cfg.TEMPLATE_DIR, 
					  self._internal_name)

    def GetMailmanFooter(self):
	owners_html = htmlformat.Container()
	for i in range(len(self.owner)):
	    owner = self.owner[i]
	    owners_html.AddItem(htmlformat.Link('mailto:%s' % owner, owner))
	    if i + 1 <> len(self.owner):
		owners_html.AddItem(', ')

	# Remove the .Format() when htmlformat conversion is done.
	return htmlformat.Container(
	    '<hr>',
	    htmlformat.Address(
		htmlformat.Container( 
		    'List run by ',
		    owners_html,
		    '<p>',
		    'HTML generated by ',
		    htmlformat.Link(
                        mm_cfg.MAILMAN_URL, 
                        "Mailman v %s" % mm_cfg.VERSION)))).Format()

    def SnarfHTMLTemplate(self, file):
	filename = os.path.join(self._template_dir, file)
	f = open(filename,'r')
	str = f.read()
	f.close()
	return str

    def FormatUsers(self, digest):
	def NotHidden(x, s=self, v=mm_cfg.ConcealSubscription):
	    return not s.GetUserOption(x, v)

	if digest:
	    people = filter(NotHidden, self.digest_members)
	    num_concealed = len(self.digest_members) - len(people)
	else:
	    people = filter(NotHidden, self.members)
	    num_concealed = len(self.members) - len(people)
        people.sort()
	if (num_concealed > 0):
	    plurality = (((num_concealed > 1) and "s") or "")
	    concealed = ("<em>(%d private member%s not shown)</em>"
			 % (num_concealed, plurality))
 	else:
 	    concealed = ""

	def FormatOneUser(person, me=self, disdel=mm_cfg.DisableDelivery):
	    import htmlformat, os
	    id = mm_utils.ObscureEmail(person)
	    if me.obscure_addresses:
		showing = mm_utils.ObscureEmail(person, for_text=1)
	    else:
		showing = person
	    got = htmlformat.Link(os.path.join(me.GetScriptURL('options'),
                                               id), showing)
            if me.GetUserOption(person, disdel):
                got = htmlformat.Italic("(",
                                        got,
                                        ")")
            return got
	items = map(FormatOneUser, people) 
	# Just return the .Format() so this works until I finish
	# converting everything to htmlformat...
	return (concealed +
		apply(htmlformat.UnorderedList, tuple(items)).Format())


    def FormatOptionButton(self, type, value, user):
	users_val = self.GetUserOption(user, type)
	if users_val == value:
	    checked = ' CHECKED'
	else:
	    checked = ''
	name = { mm_cfg.DontReceiveOwnPosts : "dontreceive",
		 mm_cfg.DisableDelivery : "disablemail",
		 mm_cfg.DisableMime : "mime",
		 mm_cfg.AcknowlegePosts : "ackposts",
		 mm_cfg.Digests : "digest",
		 mm_cfg.ConcealSubscription : "conceal"
	       }[type]
	import sys
	return ('<input type=radio name="%s" value="%d"%s>'
		% (name, value, checked))

    def FormatDigestButton(self):
	if self.digest_is_default:
	    checked = ' CHECKED'
	else:
	    checked = ''
	return '<input type=radio name="digest" value="1"%s>' % checked

    def FormatSubscriptionMsg(self):
        "Tailor to approval, roster privacy, and web vetting requirements."
        msg = ""
        also = ""
        if self.web_subscribe_requires_confirmation:
            msg = msg + ("You will be sent email requesting confirmation, "
                         "to prevent others from gratuitously subscribing "
                         "you.  ")
        if not self.open_subscribe:
            msg = msg + ("This is a closed list, which means your "
                         "subscription will be held for approval.  You will "
                         "be notified of the administrators decision by "
                         "email.  ")
            also = "also "
        if self.private_roster:
            msg = msg + ("This is %sa private list, which means that "
                         "the members list is not available to non-"
                         "members.  " % also)
        else:
            msg = msg + ("This is %sa public list, which means that the "
                         "members list is openly available" % also)
            if self.obscure_addresses:
                msg = msg + (" (but we obscure the addresses so they are "
                             "not easily recognizable by spammers).  ")
            else:
                msg = msg + ".  "

        return msg

    def FormatUndigestButton(self):
	if self.digest_is_default:
	    checked = ''
	else:
	    checked = ' CHECKED'
	return '<input type=radio name="digest" value="0"%s>' % checked

    def FormatMimeDigestsButton(self):
	if self.mime_is_default_digest:
	    checked = ' CHECKED'
	else:
	    checked = ''
	return '<input type=radio name="mime" value="1"%s>' % checked
    def FormatPlainDigestsButton(self):
	if self.mime_is_default_digest:
	    checked = ''
	else:
	    checked = ' CHECKED'
	return '<input type=radio name="plain" value="1"%s>' % checked

    def FormatEditingOption(self):
        "Present editing options, according to list privacy."

        text = ('To change your subscription (set options like digest'
                ' and delivery modes, get a reminder of your password,'
                ' or unsubscribe from '
                + self.real_name
                + '), %senter your subscription email address:<p><center> ')

        if self.private_roster == 0:
            text = text % "<b><i>either</i></b> "
        else:
            text = text % ""
        text = (text
                + htmlformat.TextBox('info', size=30).Format()
                + "  "
                + htmlformat.SubmitButton('UserOptions',
                                          'Edit Options').Format()
                + "</center>")
        if self.private_roster == 0:
            text = text + ("<p>... <b><i>or</i></b> select your entry from the"
                           " subscribers list (see above).")
        return text
        
    def RestrictedListMessage(self, which, restriction):
        if not restriction:
            return ""
        elif restriction == 1:
            return ("<i>The %s is only available to the list members.</i>"
                    % which)
        else:
            return ("<i>The %s is only available to the list"
                    " administrator.</i>" % which)
    def FormatRosterOptionForUser(self):
        return self.RosterOption().Format()
    def RosterOption(self):
        "Provide avenue to subscribers roster, contingent to .private_roster."
        container = htmlformat.Container()
        if not self.private_roster:
            container.AddItem("Click here for the list of "
                              + self.real_name
                              + " subscribers: ")
            container.AddItem(htmlformat.SubmitButton('SubscriberRoster',
                                                      'Visit Subscriber list'))
        else:
            if self.private_roster == 1:
                only = 'members'
                whom = 'Address:'
            else:
                only = 'the list administrator'
                whom = 'Admin address:'
            # Solicit the user and password.
            container.AddItem(self.RestrictedListMessage('subscribers list',
                                                         self.private_roster)
                              + " <p>Enter your "
                              + string.lower(whom[:-1])
                              + " address and password to visit"
                              "  the subscribers list: <p><center> "
                              + whom
                              + " ")
            container.AddItem(self.FormatBox('roster-email'))
            container.AddItem(" Password: "
                              + self.FormatSecureBox('roster-pw')
                              + "&nbsp;&nbsp;")
            container.AddItem(htmlformat.SubmitButton('SubscriberRoster',
                                                      'Visit Subscriber List'))
            container.AddItem("</center>")
        return container

    def FormatFormStart(self, name, extra=''):
	base_url = self.GetScriptURL(name)
	full_url = os.path.join(base_url, extra)
	return ('<FORM Method=POST ACTION="%s">' % full_url)

    def FormatArchiveAnchor(self):
	return '<a href="%s">' % self._base_archive_url

    def FormatFormEnd(self):
	return '</FORM>'

    def FormatBox(self, name, size=20):
	return '<INPUT type="Text" name="%s" size="%d">' % (name, size)

    def FormatSecureBox(self, name):
	return '<INPUT type="Password" name="%s" size="15">' % name

    def FormatButton(self, name, text='Submit'):
	return '<INPUT type="Submit" name="%s" value="%s">' % (name, text)

    def ParseTags(self, template, replacements):
	text = self.SnarfHTMLTemplate(template)
	parts = regsub.splitx(text, '</?[Mm][Mm]-[^>]*>')
	i = 1
	while i < len(parts):
	    tag = string.lower(parts[i])
	    if replacements.has_key(tag):
		parts[i] = replacements[tag]
	    else:
		parts[i] = ''
	    i = i + 2
	return string.join(parts, '')

    # This needs to wait until after the list is inited, so let's build it
    # when it's needed only.
    def GetStandardReplacements(self):
	return { 
	    '<mm-mailman-footer>' : self.GetMailmanFooter(),
	    '<mm-list-name>' : self.real_name,
	    '<mm-email-user>' : self._internal_name,
	    '<mm-list-description>' : self.description,
	    '<mm-list-info>' : string.join(string.split(self.info, '\n'),
					   '<br>'),
	    '<mm-form-end>'  : self.FormatFormEnd(),
	    '<mm-archive>'   : self.FormatArchiveAnchor(),
	    '</mm-archive>'  : '</a>',
	    '<mm-regular-users>' : self.FormatUsers(0),
            '<mm-list-subscription-msg>' : self.FormatSubscriptionMsg(),
            '<mm-restricted-list-message>' : \
            	self.RestrictedListMessage('current archive',
                                           self.archive_private),
	    '<mm-digest-users>' : self.FormatUsers(1),
	    '<mm-num-reg-users>' : `len(self.members)`,
	    '<mm-num-digesters>' : `len(self.digest_members)`,
	    '<mm-num-members>' : (`len(self.members)`
				  + `len(self.digest_members)`),
	    '<mm-posting-addr>' : '%s' % self.GetListEmail(),
	    '<mm-request-addr>' : '%s' % self.GetRequestEmail(),
	    '<mm-owner>' : self.GetAdminEmail()
	    }
    
    def InitTemplates(self):
	def ExtensionFilter(item):
	    return item[-5:] == '.html'

	files = filter(ExtensionFilter, os.listdir(mm_cfg.TEMPLATE_DIR))
	mm_utils.MakeDirTree(self._template_dir)
	for filename in files:
	    file1 = open(os.path.join(mm_cfg.TEMPLATE_DIR, filename), 'r')
	    text = file1.read()
	    file1.close()
	    file2 = open(os.path.join(self._template_dir, filename), 'w+')
	    file2.write(text)
	    file2.close()