#  IRIS Source Code
#  Copyright (C) 2021 - Airbus CyberSecurity (SAS)
#  ir@cyberactionlab.net
#
#  This program 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 3 of the License, or (at your option) any later version.
#
#  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
#  Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser 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.

import json
from flask import Blueprint
from flask import redirect
from flask import render_template
from flask import request
from flask import url_for

from app.forms import AddAssetForm
from app.forms import AttributeForm
from app.models.authorization import Permissions
from app.models.models import CustomAttribute
from app.blueprints.access_controls import ac_requires
from app.blueprints.responses import response_error

manage_attributes_blueprint = Blueprint('manage_attributes', __name__, template_folder='templates')


@manage_attributes_blueprint.route('/manage/attributes')
@ac_requires(Permissions.server_administrator, no_cid_required=True)
def manage_attributes(caseid, url_redir):
    if url_redir:
        return redirect(url_for('manage_attributes.manage_attributes', cid=caseid))

    form = AddAssetForm()

    return render_template('manage_attributes.html', form=form)


@manage_attributes_blueprint.route('/manage/attributes/<int:cur_id>/modal', methods=['GET'])
@ac_requires(Permissions.server_administrator, no_cid_required=True)
def attributes_modal(cur_id, caseid, url_redir):
    if url_redir:
        return redirect(url_for('manage_attributes.manage_attributes', cid=caseid))

    form = AttributeForm()

    attribute = CustomAttribute.query.filter(CustomAttribute.attribute_id == cur_id).first()
    if not attribute:
        return response_error(f'Invalid Attribute ID {cur_id}')

    form.attribute_content.data = attribute.attribute_content

    return render_template('modal_add_attribute.html', form=form, attribute=attribute)


# TODO this endpoint should probably be a GET
@manage_attributes_blueprint.route('/manage/attributes/preview', methods=['POST'])
@ac_requires(Permissions.server_administrator, no_cid_required=True)
def attributes_preview(caseid, url_redir):
    if url_redir:
        return redirect(url_for('manage_attributes.manage_attributes', cid=caseid))

    data = request.get_json()
    if not data:
        return response_error('Invalid request')

    attribute = data.get('attribute_content')
    if not attribute:
        return response_error('Invalid request')

    try:
        attribute = json.loads(attribute)
    except Exception as e:
        return response_error('Invalid JSON', data=str(e))

    return render_template('modal_preview_attribute.html', attributes=attribute)