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

publisher to get a full CubicWeb web application

:organization: Logilab

:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.

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

:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses

"""

__docformat__ = "restructuredtext en"

_ = unicode

from decimal import Decimal

from datetime import datetime, date, timedelta

from simplejson import dumps

from logilab.common.deprecation import obsolete

from cubicweb.common.uilib import urlquote

from cubicweb.web._exceptions import *

INTERNAL_FIELD_VALUE = '__cubicweb_internal_field__'

class stdmsgs(object):

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

    BUTTON_OK     = _('button_ok')

    BUTTON_APPLY  = _('button_apply')

    BUTTON_CANCEL = _('button_cancel')

    BUTTON_DELETE = _('button_delete')

    YES = _('yes')

    NO  = _('no')

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):

    if isinstance(value, Decimal):

        value = float(value)

    elif isinstance(value, (date, datetime)):

        value = value.strftime('%Y-%m-%d %H:%M')

    elif isinstance(value, timedelta):

        value = (value.days * 24*60*60) + value.seconds

    try:

        return dumps(value)

    except TypeError:

        return dumps(repr(value))

def jsonize(function):

    def newfunc(*args, **kwargs):

        return json_dumps(function(*args, **kwargs))

    return newfunc

@obsolete('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)