# coding: utf-8

# (c) 2021-2022, Famedly GmbH
# GNU Affero General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/agpl-3.0.txt)

from __future__ import (absolute_import, division, print_function)

__metaclass__ = type

import traceback

from ansible.module_utils.basic import AnsibleModule, missing_required_lib

# Check if all required libs can load
LIB_IMP_ERR = None
try:
    from nio import AsyncClient, AsyncClientConfig, \
        Api, \
        LoginResponse, LoginError, \
        LogoutResponse, LogoutError, \
        RoomGetStateResponse, RoomGetStateError, \
        RoomBanResponse, RoomBanError, \
        RoomUnbanResponse, RoomUnbanError, \
        RoomKickResponse, RoomKickError, \
        RoomInviteResponse, RoomInviteError, \
        RoomResolveAliasResponse, RoomResolveAliasError, \
        JoinedRoomsResponse, JoinedRoomsError
    HAS_LIB = True
except ImportError:
    LIB_IMP_ERR = traceback.format_exc()
    HAS_LIB = False


class AnsibleNioModule:
    def __init__(self,
                 custom_spec=None,
                 bypass_checks=False,
                 no_log=False,
                 mutually_exclusive=None,
                 required_together=None,
                 required_one_of=None,
                 required_by=None,
                 add_file_common_args=False,
                 supports_check_mode=True,
                 required_if=None,
                 user_logout=None):

        if required_by is None:
            required_by = {'password': 'user_id'}

        if required_one_of is None:
            required_one_of = [['password', 'token']]

        if mutually_exclusive is None:
            mutually_exclusive = [['password', 'token']]

        if custom_spec is None:
            custom_spec = {}

        # Create the Ansible module
        self.module = AnsibleModule(
            argument_spec=AnsibleNioModule.__common_argument_spec(custom_spec),
            bypass_checks=bypass_checks,
            no_log=no_log,
            mutually_exclusive=mutually_exclusive,
            required_together=required_together,
            required_one_of=required_one_of,
            add_file_common_args=add_file_common_args,
            supports_check_mode=supports_check_mode,
            required_if=required_if,
            required_by=required_by
        )

        if user_logout is None:
            # If a user/password login is provided, should we logout when exiting?
            self.user_logout = self.module.params['token'] is not None
        else:
            self.user_logout = user_logout

        # Make some values from the module easly accessible
        self.check_mode = self.module.check_mode
        self.params = self.module.params

        # Fail when matix-nio is not installed
        # WARNING: We don't perform a version check!
        if not HAS_LIB:
            self.module.fail_json(msg=missing_required_lib("matrix-nio"))

    async def matrix_login(self):
        # Login with token or supplied user account
        if self.module.params['token'] is None:
            self.client = AsyncClient(self.module.params['hs_url'], self.module.params['user_id'])
            login_response = await self.client.login(password=self.module.params['password'])
        else:
            self.client = AsyncClient(self.module.params['hs_url'])
            login_response = await self.client.login(token=self.module.params['token'])
        if isinstance(login_response, LoginResponse):
            self.access_token = login_response.access_token
            self.device_id = login_response.device_id
        else:
            result = {
                'msg': login_response.message,
                'http_status_code': login_response.status_code
            }
            self.module.fail_json(**result)

    async def matrix_logout(self):
        if self.client.logged_in:
            request = await self.client.logout()
            if isinstance(request, LogoutError):
                result = {'msg': request.message}
                self.module.fail_json(**result)

    async def exit_json(self, **result):
        if self.module.params['token'] is None and self.user_logout is True:
            await self.matrix_logout()
        await self.client.close()
        self.module.exit_json(**result)

    async def fail_json(self, **result):
        if self.module.params['token'] is None and self.user_logout is True:
            await self.matrix_logout()
        await self.client.close()
        self.module.fail_json(**result)

    @staticmethod
    def __common_argument_spec(custom_spec: dict):
        argument_spec = dict(
            hs_url=dict(type='str', required=True),
            user_id=dict(type='str', required=False),
            password=dict(type='str', required=False, no_log=True),
            token=dict(type='str', required=False, no_log=True)
        )
        return {**argument_spec, **custom_spec}