import logging

import allure
import pytest
from common import (
    STORAGE_NODE_SSH_PASSWORD,
    STORAGE_NODE_SSH_PRIVATE_KEY_PATH,
    STORAGE_NODE_SSH_USER,
)
from failover_utils import wait_all_storage_node_returned, wait_object_replication_on_nodes
from python_keywords.container import create_container
from python_keywords.neofs_verbs import get_object, put_object
from python_keywords.utility_keywords import generate_file, get_file_hash
from sbercloud_helper import SberCloud, SberCloudConfig
from ssh_helper import HostClient
from wellknown_acl import PUBLIC_ACL

logger = logging.getLogger("NeoLogger")
stopped_hosts = []


@pytest.fixture(scope="session")
def sbercloud_client():
    with allure.step("Connect to SberCloud"):
        try:
            config = SberCloudConfig.from_env()
            yield SberCloud(config)
        except Exception as err:
            pytest.fail(f"SberCloud infrastructure not available. Error\n{err}")


@pytest.fixture(autouse=True)
@allure.step("Return all storage nodes")
def return_all_storage_nodes_fixture(sbercloud_client):
    yield
    return_all_storage_nodes(sbercloud_client)


def panic_reboot_host(ip: str = None):
    ssh = HostClient(
        ip=ip,
        login=STORAGE_NODE_SSH_USER,
        password=STORAGE_NODE_SSH_PASSWORD,
        private_key_path=STORAGE_NODE_SSH_PRIVATE_KEY_PATH,
    )
    ssh.exec('sudo sh -c "echo 1 > /proc/sys/kernel/sysrq"')
    ssh_stdin, _, _ = ssh.ssh_client.exec_command(
        'sudo sh -c "echo b > /proc/sysrq-trigger"', timeout=1
    )
    ssh_stdin.close()


def return_all_storage_nodes(sbercloud_client: SberCloud) -> None:
    for host in list(stopped_hosts):
        with allure.step(f"Start storage node {host}"):
            sbercloud_client.start_node(node_ip=host.split(":")[-2])
        stopped_hosts.remove(host)

    wait_all_storage_node_returned()


@allure.title("Lost and returned nodes")
@pytest.mark.parametrize("hard_reboot", [True, False])
@pytest.mark.failover
def test_lost_storage_node(
    prepare_wallet_and_deposit,
    sbercloud_client: SberCloud,
    cloud_infrastructure_check,
    hard_reboot: bool,
):
    wallet = prepare_wallet_and_deposit
    placement_rule = "REP 2 IN X CBF 2 SELECT 2 FROM * AS X"
    source_file_path = generate_file()
    cid = create_container(wallet, rule=placement_rule, basic_acl=PUBLIC_ACL)
    oid = put_object(wallet, source_file_path, cid)
    nodes = wait_object_replication_on_nodes(wallet, cid, oid, 2)

    new_nodes = []
    for node in nodes:
        stopped_hosts.append(node)
        with allure.step(f"Stop storage node {node}"):
            sbercloud_client.stop_node(node_ip=node.split(":")[-2], hard=hard_reboot)
        new_nodes = wait_object_replication_on_nodes(wallet, cid, oid, 2, excluded_nodes=[node])

    assert not [node for node in nodes if node in new_nodes]
    got_file_path = get_object(wallet, cid, oid, endpoint=new_nodes[0])
    assert get_file_hash(source_file_path) == get_file_hash(got_file_path)

    with allure.step(f"Return storage nodes"):
        return_all_storage_nodes(sbercloud_client)

    new_nodes = wait_object_replication_on_nodes(wallet, cid, oid, 2)

    got_file_path = get_object(wallet, cid, oid, endpoint=new_nodes[0])
    assert get_file_hash(source_file_path) == get_file_hash(got_file_path)


@allure.title("Panic storage node(s)")
@pytest.mark.parametrize("sequence", [True, False])
@pytest.mark.failover_panic
@pytest.mark.failover
def test_panic_storage_node(prepare_wallet_and_deposit, cloud_infrastructure_check, sequence: bool):
    wallet = prepare_wallet_and_deposit
    placement_rule = "REP 2 IN X CBF 2 SELECT 2 FROM * AS X"
    source_file_path = generate_file()
    cid = create_container(wallet, rule=placement_rule, basic_acl=PUBLIC_ACL)
    oid = put_object(wallet, source_file_path, cid)

    nodes = wait_object_replication_on_nodes(wallet, cid, oid, 2)
    new_nodes: list[str] = []
    allure.attach("\n".join(nodes), "Current nodes with object", allure.attachment_type.TEXT)
    for node in nodes:
        with allure.step(f"Hard reboot host {node} via magic SysRq option"):
            panic_reboot_host(ip=node.split(":")[-2])
            if sequence:
                try:
                    new_nodes = wait_object_replication_on_nodes(
                        wallet, cid, oid, 2, excluded_nodes=[node]
                    )
                except AssertionError:
                    new_nodes = wait_object_replication_on_nodes(wallet, cid, oid, 2)

                allure.attach(
                    "\n".join(new_nodes),
                    f"Nodes with object after {node} fail",
                    allure.attachment_type.TEXT,
                )

    if not sequence:
        new_nodes = wait_object_replication_on_nodes(wallet, cid, oid, 2)
        allure.attach(
            "\n".join(new_nodes), "Nodes with object after nodes fail", allure.attachment_type.TEXT
        )

    got_file_path = get_object(wallet, cid, oid, endpoint=new_nodes[0])
    assert get_file_hash(source_file_path) == get_file_hash(got_file_path)