"""CubicWeb web client core. You'll need a apache-modpython or twisted

publisher to get a full CubicWeb web application

"""

__docformat__ = "restructuredtext en"

_ = unicode

import sys

if sys.version_info < (2,6):

    import simplejson as json

else:

    import json

dumps = json.dumps

from urllib import quote as urlquote

from logilab.common.deprecation import deprecated

from cubicweb.web._exceptions import *

from cubicweb.utils import CubicWebJsonEncoder

INTERNAL_FIELD_VALUE = '__cubicweb_internal_field__'

class stdmsgs(object):

    """standard ui message (in a class for bw compat)"""

    BUTTON_OK     = (_('button_ok'), 'OK_ICON')

    BUTTON_APPLY  = (_('button_apply'), 'APPLY_ICON')

    BUTTON_CANCEL = (_('button_cancel'), 'CANCEL_ICON')

    BUTTON_DELETE = (_('button_delete'), 'TRASH_ICON')

    YES = (_('yes'), None)

    NO  = (_('no'), None)

def eid_param(name, eid):

    assert eid is not None

    if eid is None:

        eid = ''

    return '%s:%s' % (name, eid)

from logging import getLogger

LOGGER = getLogger('cubicweb.web')

# XXX deprecated

FACETTES = set()

def json_dumps(value):

    return dumps(value, cls=CubicWebJsonEncoder)

def jsonize(function):

    def newfunc(*args, **kwargs):

        value = function(*args, **kwargs)

        try:

            return json_dumps(value)

        except TypeError:

            return json_dumps(repr(value))

    return newfunc

@deprecated('[3.4] use req.build_ajax_replace_url() instead')

def ajax_replace_url(nodeid, rql, vid=None, swap=False, **extraparams):

    """builds a replacePageChunk-like url

    >>> ajax_replace_url('foo', 'Person P')

    "javascript: replacePageChunk('foo', 'Person%20P');"

    >>> ajax_replace_url('foo', 'Person P', 'oneline')

    "javascript: replacePageChunk('foo', 'Person%20P', 'oneline');"

    >>> ajax_replace_url('foo', 'Person P', 'oneline', name='bar', age=12)

    "javascript: replacePageChunk('foo', 'Person%20P', 'oneline', {'age':12, 'name':'bar'});"

    >>> ajax_replace_url('foo', 'Person P', name='bar', age=12)

    "javascript: replacePageChunk('foo', 'Person%20P', 'null', {'age':12, 'name':'bar'});"

    """

    params = [repr(nodeid), repr(urlquote(rql))]

    if extraparams and not vid:

        params.append("'null'")

    elif vid:

        params.append(repr(vid))

    if extraparams:

        params.append(json_dumps(extraparams))

    if swap:

        params.append('true')

    return "javascript: replacePageChunk(%s);" % ', '.join(params)