# -*- coding: utf-8 -*-
# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ._base import Config

DEFAULT_CONFIG = """\
# User Consent configuration
#
# Parts of this section are required if enabling the 'consent' resource under
# 'listeners', in particular 'template_dir' and 'version'.
#
# 'template_dir' gives the location of the templates for the HTML forms.
# This directory should contain one subdirectory per language (eg, 'en', 'fr'),
# and each language directory should contain the policy document (named as
# '<version>.html') and a success page (success.html).
#
# 'version' specifies the 'current' version of the policy document. It defines
# the version to be served by the consent resource if there is no 'v'
# parameter.
#
# 'server_notice_content', if enabled, will send a user a "Server Notice"
# asking them to consent to the privacy policy. The 'server_notices' section
# must also be configured for this to work. Notices will *not* be sent to
# guest users unless 'send_server_notice_to_guests' is set to true.
#
# 'block_events_error', if set, will block any attempts to send events
# until the user consents to the privacy policy. The value of the setting is
# used as the text of the error.
#
# user_consent:
#   template_dir: res/templates/privacy
#   version: 1.0
#   server_notice_content:
#     msgtype: m.text
#     body: >-
#       To continue using this homeserver you must review and agree to the
#       terms and conditions at %(consent_uri)s
#   send_server_notice_to_guests: True
#   block_events_error: >-
#     To continue using this homeserver you must review and agree to the
#     terms and conditions at %(consent_uri)s
#
"""


class ConsentConfig(Config):
    def __init__(self):
        super(ConsentConfig, self).__init__()

        self.user_consent_version = None
        self.user_consent_template_dir = None
        self.user_consent_server_notice_content = None
        self.user_consent_server_notice_to_guests = False
        self.block_events_without_consent_error = None

    def read_config(self, config):
        consent_config = config.get("user_consent")
        if consent_config is None:
            return
        self.user_consent_version = str(consent_config["version"])
        self.user_consent_template_dir = consent_config["template_dir"]
        self.user_consent_server_notice_content = consent_config.get(
            "server_notice_content",
        )
        self.block_events_without_consent_error = consent_config.get(
            "block_events_error",
        )
        self.user_consent_server_notice_to_guests = bool(consent_config.get(
            "send_server_notice_to_guests", False,
        ))

    def default_config(self, **kwargs):
        return DEFAULT_CONFIG
