# -*- coding: iso-8859-1 -*-
"""
    MoinMoin - RenamePage action

    This action allows you to rename a page.

    @copyright: 2002-2004 Michael Reinsch <mr@uue.org>,
                2006-2007 MoinMoin:ThomasWaldmann,
                2007 MoinMoin:ReimarBauer
    @license: GNU GPL, see COPYING for details.
"""
import re
from MoinMoin import wikiutil
from MoinMoin.Page import Page
from MoinMoin.PageEditor import PageEditor
from MoinMoin.action import ActionBase

class RenamePage(ActionBase):
    """ Rename page action

    Note: the action name is the class name
    """
    def __init__(self, pagename, request):
        ActionBase.__init__(self, pagename, request)
        self.use_ticket = True
        _ = self._
        self.form_trigger = 'rename'
        self.form_trigger_label = _('Rename Page')
        filterfn = re.compile(ur"^%s/.*$" % re.escape(pagename), re.U).match
        subpagenames = request.rootpage.getPageList(user='', exists=1, filter=filterfn)
        self.subpages = [pagename for pagename in subpagenames if self.request.user.may.delete(pagename)]

        form = self.request.form
        self.redirect = 0
        if 'rename_redirect' in form:
            try:
                self.redirect = int(form['rename_redirect'])
            except:
                pass


    def is_allowed(self):
        may = self.request.user.may
        return may.write(self.pagename) and may.delete(self.pagename)

    def check_condition(self):
        _ = self._
        if not self.page.exists():
            return _('This page is already deleted or was never created!')
        else:
            return None

    def do_action(self):
        """ Rename this page to "pagename" """
        _ = self._
        form = self.form
        newpagename = form.get('newpagename', [u''])
        #newpagename = self.request.normalizePagename(newpagename)
        newpagename = wikiutil.normalize_pagename(newpagename, self.cfg)
        comment = form.get('comment', u'')
        comment = wikiutil.clean_input(comment)
        rename_redirect = self.redirect

        rename_subpages = 0
        if 'rename_subpages' in form:
            try:
                rename_subpages = int(form['rename_subpages'])
            except:
                pass


        self.page = PageEditor(self.request, self.pagename)
        success, msgs = self.page.renamePage(newpagename, comment)

        if not success:
            return success, msgs

        if rename_redirect:
            self.page = PageEditor(self.request, self.pagename)
            self.page.saveText('#redirect %s' % newpagename, 0)

        if rename_subpages and self.subpages:
            for name in self.subpages:
                self.page = PageEditor(self.request, name)
                new_subpagename = name.replace(self.pagename, newpagename, 1)
                success_i, msg = self.page.renamePage(new_subpagename, comment)
                msgs = "%s %s" % (msgs, msg)

                if rename_redirect and success_i:
                    self.page = PageEditor(self.request, name)
                    self.page.saveText('#redirect %s' % new_subpagename, 0)


        self.newpagename = newpagename # keep there for finish
        return success, msgs

    def do_action_finish(self, success):
        if success:
            url = Page(self.request, self.newpagename).url(self.request)
            self.request.http_redirect(url)
            self.request.finish()
        else:
            self.render_msg(self.make_form(), "dialog")

    def get_form_html(self, buttons_html):
        _ = self._
        if self.subpages:
            subpages = ' '.join(self.subpages)

            d = {
                'subpage': subpages,
                'subpages_checked': ('', 'checked')[self.request.form.get('subpages_checked', ['0']) == '1'],
                'subpage_label': _('Rename all /subpages too?'),
                'pagename': wikiutil.escape(self.pagename, True),
                'newname_label': _("New name"),
                'comment_label': _("Optional reason for the renaming"),
                'buttons_html': buttons_html,
                'querytext': _('Really rename this page?'),
                'redirect': self.redirect,
                'redirect_label': _('Create redirect for renamed pages?'),
                }

            return '''
<strong>%(querytext)s</strong>
<br>
<br>
<table>
    <tr>
    <dd>
        %(subpage_label)s<input type="checkbox" name="rename_subpages" value="1" %(subpages_checked)s>
    </dd>
    <dd>
        <class="label"><subpage> %(subpage)s</subpage>
    </dd>
    </tr>
    <tr>
    <dd>
        %(redirect_label)s<input type="checkbox" name="rename_redirect" value="1" %(redirect)s>
    </dd>
    </tr>
</table>
<table>
    <tr>
        <td class="label"><label>%(newname_label)s</label></td>
        <td class="content">
            <input type="text" name="newpagename" value="%(pagename)s" size="80">
        </td>
    </tr>
    <tr>
        <td class="label"><label>%(comment_label)s</label></td>
        <td class="content">
            <input type="text" name="comment" size="80" maxlength="200">
        </td>
    </tr>
    <tr>
        <td></td>
        <td class="buttons">
            %(buttons_html)s
        </td>
    </tr>
</table>
''' % d

        else:
            d = {
                'pagename': wikiutil.escape(self.pagename, True),
                'newname_label': _("New name"),
                'comment_label': _("Optional reason for the renaming"),
                'buttons_html': buttons_html,
                'redirect': self.redirect,
                'redirect_label': _('Create redirect for renamed page?'),
                }
            return '''
<table>
    </tr>
    <tr>
    <dd>
        %(redirect_label)s<input type="checkbox" name="rename_redirect" value="1" %(redirect)s>
    </dd>
    </tr>
</table>
<table>
    <tr>
        <td class="label"><label>%(newname_label)s</label></td>
        <td class="content">
            <input type="text" name="newpagename" value="%(pagename)s" size="80">
        </td>
    </tr>
    <tr>
        <td class="label"><label>%(comment_label)s</label></td>
        <td class="content">
            <input type="text" name="comment" size="80" maxlength="200">
        </td>
    </tr>
    <tr>
        <td></td>
        <td class="buttons">
            %(buttons_html)s
        </td>
    </tr>
</table>
''' % d

def execute(pagename, request):
    """ Glue code for actions """
    RenamePage(pagename, request).render()