# Copyright © 2022 Aravinth Manivannan <realaravinth@batsense.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
from pathlib import Path
import shutil

from django.test import TestCase, Client, override_settings
from django.conf import settings
from git import Repo

from dash.models import Instance
from .utils import Infra

from accounts.tests import register_util, login_util
from dash.tests import create_configurations, create_instance_util


def custom_config(test_name: str):
    c = settings.HOSTEA
    path = Path(f"/tmp/hostea/dashboard/{c}/repo")
    if path.exists():
        print(f"[!] {path} exists, deleting.")
        shutil.rmtree(path)
    c["INFRA"]["HOSTEA_REPO"]["PATH"] = str(path)
    return c


class InfraUtilTest(TestCase):
    """
    Tests billing system
    """

    def setUp(self):
        self.username = "infrautil_user"
        register_util(t=self, username=self.username)
        create_configurations(t=self)

    @override_settings(HOSTEA=custom_config(test_name="test_path_util"))
    def test_path_utils(self):
        infra = Infra()
        subdomain = "foo"
        base = infra.repo_path

        self.assertEqual(
            base.joinpath(f"inventory/host_vars/{subdomain}-host/"),
            infra._host_vars_dir(subdomain=subdomain),
        )

        self.assertEqual(
            base.joinpath(f"inventory/host_vars/{subdomain}-host/gitea.yml"),
            infra._gitea_path(subdomain=subdomain),
        )

        self.assertEqual(
            base.joinpath(f"inventory/host_vars/{subdomain}-host/provision.yml"),
            infra._provision_path(subdomain=subdomain),
        )

        self.assertEqual(
            base.joinpath(f"inventory/{subdomain}-backup.yml"),
            infra._backup_path(subdomain=subdomain),
        )

        self.assertEqual(
            base.joinpath(f"inventory/hosts-scripts/{subdomain}-host.sh"),
            infra._hostscript_path(subdomain=subdomain),
        )

    @override_settings(HOSTEA=custom_config(test_name="test_add_vm"))
    def test_add_vm(self):
        infra = Infra()
        c = Client()
        conf = settings.HOSTEA["INFRA"]["HOSTEA_REPO"]
        login_util(self, c, "accounts.home")
        subdomain = "add_vm"

        base = infra.repo_path

        create_instance_util(
            t=self, c=c, instance_name=subdomain, config=self.instance_config[0]
        )

        before_add = infra.repo.head.commit.hexsha
        instance = Instance.objects.get(name=subdomain)
        woodpecker_agent_secret = infra.add_vm(instance=instance)
        after_add = infra.repo.head.commit.hexsha
        self.assertEqual(before_add is not after_add, True)

        c = custom_config(test_name="test_add_vm--get-head")
        path = c["INFRA"]["HOSTEA_REPO"]["PATH"]
        repo = Repo.clone_from(
            conf["REMOTE"], path, env={"GIT_SSH_COMMAND": infra.ssh_cmd}
        )
        self.assertEqual(repo.head.commit.hexsha == after_add, True)

        before_rm = infra.repo.head.commit.hexsha
        infra.remove_vm(instance=instance)
        after_rm = infra.repo.head.commit.hexsha
        self.assertEqual(before_add is not after_add, True)

        repo.git.pull()
        self.assertEqual(repo.head.commit.hexsha == after_rm, True)