# Copyright (c) 2020 Gael Chamoulaud <gchamoul@redhat.com>
# Copyright (c) 2020 Sorin Sbarnea <ssbarnea@redhat.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

import re
from pathlib import Path
from typing import List

from ansiblelint.rules import AnsibleLintRule
from ansiblelint.utils import parse_yaml_from_file

ROLE_NAME_REGEX = '^[a-z][a-z0-9_]+$'


def _remove_prefix(text, prefix):
    return re.sub(r'^{0}'.format(re.escape(prefix)), '', text)


class RoleNames(AnsibleLintRule):
    id = '106'
    shortdesc = (
        "Role name {} does not match ``%s`` pattern" % ROLE_NAME_REGEX
    )
    description = (
        "Role names are now limited to contain only lowercase alphanumeric "
        "characters, plus '_' and start with an alpha character. See "
        "`developing collections <https://docs.ansible.com/ansible/devel/dev_guide/developing_"
        "collections.html#roles-directory>`_"
    )
    severity = 'HIGH'
    done: List[str] = []  # already noticed roles list
    tags = ['deprecated']
    version_added = 'v4.3.0'

    ROLE_NAME_REGEXP = re.compile(ROLE_NAME_REGEX)

    def match(self, file, text):
        path = file['path'].split("/")
        if "tasks" in path:
            role_name = _remove_prefix(path[path.index("tasks") - 1], "ansible-role-")
            role_root = path[:path.index("tasks")]
            meta = Path("/".join(role_root)) / "meta" / "main.yml"

            if meta.is_file():
                meta_data = parse_yaml_from_file(str(meta))
                if meta_data:
                    try:
                        role_name = meta_data['galaxy_info']['role_name']
                    except KeyError:
                        pass

            if role_name in self.done:
                return False
            self.done.append(role_name)
            if not re.match(self.ROLE_NAME_REGEXP, role_name):
                return self.shortdesc.format(role_name)
        return False