# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

#

# This file is part of CubicWeb.

#

# CubicWeb is free software: you can redistribute it and/or modify it under the

# terms of the GNU Lesser General Public License as published by the Free

# Software Foundation, either version 2.1 of the License, or (at your option)

# any later version.

#

# CubicWeb is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

# details.

#

# You should have received a copy of the GNU Lesser General Public License along

# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

"""mime type transformation engine for cubicweb, based on mtconverter

"""

__docformat__ = "restructuredtext en"

from logilab import mtconverter

from logilab.mtconverter.engine import TransformEngine

from logilab.mtconverter.transform import Transform

from cubicweb.uilib import rest_publish, html_publish, remove_html_tags

HTML_MIMETYPES = ('text/html', 'text/xhtml', 'application/xhtml+xml')

# CubicWeb specific transformations

class rest_to_html(Transform):

    inputs = ('text/rest', 'text/x-rst')

    output = 'text/html'

    def _convert(self, trdata):

        return rest_publish(trdata.appobject, trdata.decode())

class html_to_html(Transform):

    inputs = HTML_MIMETYPES

    output = 'text/html'

    def _convert(self, trdata):

        return html_publish(trdata.appobject, trdata.data)

# Instantiate and configure the transformation engine

mtconverter.UNICODE_POLICY = 'replace'

ENGINE = TransformEngine()

ENGINE.add_transform(rest_to_html())

ENGINE.add_transform(html_to_html())

HAS_PIL_TRANSFORMS = False

HAS_PYGMENTS_TRANSFORMS = False

class html_to_text(Transform):

    inputs = HTML_MIMETYPES

    output = 'text/plain'

    def _convert(self, trdata):

        return remove_html_tags(trdata.data)

ENGINE.add_transform(html_to_text())