# -*- coding: utf-8 -*-
#
# This file is part of SENAITE.CORE.
#
# SENAITE.CORE is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, version 2.
#
# This program 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 General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright 2018-2021 by it's authors.
# Some rights reserved, see README and LICENSE.

from plone.jsonapi.core import router
from plone.jsonapi.core.interfaces import IRouteProvider
from Products.CMFCore.utils import getToolByName
from zExceptions import BadRequest
from zope import interface
import transaction


class Remove(object):
    interface.implements(IRouteProvider)

    def initialize(self, context, request):
        pass

    @property
    def routes(self):
        return (
            ("/remove", "remove", self.remove, dict(methods=['GET', 'POST'])),
        )

    def remove(self, context, request):
        """/@@API/remove: Remove existing object

        Required parameters:

            - UID: UID for the object.

        {
            runtime: Function running time.
            error: true or string(message) if error. false if no error.
            success: true or string(message) if success. false if no success.
        }

        So.

        >>> portal = layer['portal']
        >>> portal_url = portal.absolute_url()
        >>> from plone.app.testing import SITE_OWNER_NAME
        >>> from plone.app.testing import SITE_OWNER_PASSWORD
        >>> blah = portal.portal_catalog(Type = "Contact")[-1]
        >>> uid = blah.UID

        >>> browser = layer['getBrowser'](portal, loggedIn=True, username=SITE_OWNER_NAME, password=SITE_OWNER_PASSWORD)
        >>> browser.open(portal_url+"/@@API/remove?UID="+uid)
        >>> browser.contents
        '{..."success": true...}'
        """

        savepoint = transaction.savepoint()
        uc = getToolByName(context, 'uid_catalog')

        _uid = request.get('UID', '')
        if not _uid:
            raise BadRequest("No UID specified in request")

        ret = {
            "url": router.url_for("remove", force_external=True),
            "success": True,
            "error": False,
        }
        
        data = uc(UID=_uid)
        if not data:
            raise BadRequest("No objects found")
        
        for proxy in data:
            try:
                parent = proxy.getObject().aq_parent
                parent.manage_delObjects([proxy.id])
            except Exception as e:
                savepoint.rollback()
                msg = "Cannot delete '{0}' because ({1})".format(_uid, e.message)
                raise BadRequest(msg)
        return ret
