import logging
import os
import shutil
from datetime import datetime
from typing import Optional

import allure
import pytest
import yaml
from frostfs_testlib.hosting import Hosting
from frostfs_testlib.reporter import AllureHandler, get_reporter
from frostfs_testlib.resources.common import (
    ASSETS_DIR,
    COMPLEX_OBJECT_CHUNKS_COUNT,
    COMPLEX_OBJECT_TAIL_SIZE,
    DEFAULT_WALLET_PASS,
    SIMPLE_OBJECT_SIZE,
)
from frostfs_testlib.s3.interfaces import S3ClientWrapper, VersioningStatus
from frostfs_testlib.shell import LocalShell, Shell
from frostfs_testlib.steps.cli.container import list_containers
from frostfs_testlib.steps.cli.object import get_netmap_netinfo
from frostfs_testlib.steps.node_management import storage_node_healthcheck
from frostfs_testlib.steps.s3 import s3_helper
from frostfs_testlib.storage.cluster import Cluster
from frostfs_testlib.storage.controllers.cluster_state_controller import ClusterStateController
from frostfs_testlib.storage.dataclasses.object_size import ObjectSize
from frostfs_testlib.storage.dataclasses.wallet import WalletFactory, WalletInfo
from frostfs_testlib.testing.cluster_test_base import ClusterTestBase
from frostfs_testlib.utils import env_utils, version_utils
from frostfs_testlib.utils.failover_utils import search_for_consensus_nodes

from pytest_tests.resources.common import HOSTING_CONFIG_FILE, TEST_CYCLES_COUNT

logger = logging.getLogger("NeoLogger")


# Add logs check test even if it's not fit to mark selectors
def pytest_configure(config: pytest.Config):
    markers = config.option.markexpr
    if markers != "":
        config.option.markexpr = f"logs_after_session or ({markers})"


# pytest hook. Do not rename
def pytest_collection_modifyitems(items: list[pytest.Item]):
    # Make network tests last based on @pytest.mark.node_mgmt and logs_test to be latest
    def priority(item: pytest.Item) -> int:
        is_node_mgmt_test = 1 if item.get_closest_marker("node_mgmt") else 0
        is_logs_check_test = 100 if item.get_closest_marker("logs_after_session") else 0
        return is_node_mgmt_test + is_logs_check_test

    items.sort(key=lambda item: priority(item))


def pytest_generate_tests(metafunc: pytest.Metafunc):
    if (
        TEST_CYCLES_COUNT <= 1
        or metafunc.definition.get_closest_marker("logs_after_session")
        or metafunc.definition.get_closest_marker("no_cycles")
    ):
        return

    metafunc.fixturenames.append("cycle")
    metafunc.parametrize(
        "cycle",
        range(1, TEST_CYCLES_COUNT + 1),
        ids=[f"cycle {cycle}" for cycle in range(1, TEST_CYCLES_COUNT + 1)],
    )


@pytest.fixture(scope="session")
def configure_testlib():
    get_reporter().register_handler(AllureHandler())
    logging.getLogger("paramiko").setLevel(logging.INFO)
    yield


@pytest.fixture(scope="session")
def client_shell(configure_testlib) -> Shell:
    yield LocalShell()


@pytest.fixture(scope="session")
def hosting(configure_testlib) -> Hosting:
    with open(HOSTING_CONFIG_FILE, "r") as file:
        hosting_config = yaml.full_load(file)

    hosting_instance = Hosting()
    hosting_instance.configure(hosting_config)

    yield hosting_instance


@pytest.fixture(scope="session")
def require_multiple_hosts(hosting: Hosting):
    """Designates tests that require environment with multiple hosts.

    These tests will be skipped on an environment that has only 1 host.
    """
    if len(hosting.hosts) <= 1:
        pytest.skip("Test only works with multiple hosts")
    yield


@pytest.fixture(scope="session")
def max_object_size(cluster: Cluster, client_shell: Shell) -> int:
    storage_node = cluster.storage_nodes[0]
    net_info = get_netmap_netinfo(
        wallet=storage_node.get_wallet_path(),
        wallet_config=storage_node.get_wallet_config_path(),
        endpoint=storage_node.get_rpc_endpoint(),
        shell=client_shell,
    )
    yield net_info["maximum_object_size"]


@pytest.fixture(scope="session")
def simple_object_size(max_object_size: int) -> ObjectSize:
    size = min(int(SIMPLE_OBJECT_SIZE), max_object_size)
    return ObjectSize("simple", size)


@pytest.fixture(scope="session")
def complex_object_size(max_object_size: int) -> ObjectSize:
    size = max_object_size * int(COMPLEX_OBJECT_CHUNKS_COUNT) + int(COMPLEX_OBJECT_TAIL_SIZE)
    return ObjectSize("complex", size)


# By default we want all tests to be executed with both object sizes
# This can be overriden in choosen tests if needed
@pytest.fixture(scope="session", params=["simple", "complex"])
def object_size(
    simple_object_size: ObjectSize, complex_object_size: ObjectSize, request: pytest.FixtureRequest
) -> ObjectSize:
    if request.param == "simple":
        return simple_object_size

    return complex_object_size


@pytest.fixture(scope="session")
def wallet_factory(temp_directory: str, client_shell: Shell, cluster: Cluster) -> WalletFactory:
    return WalletFactory(temp_directory, client_shell, cluster)


@pytest.fixture(scope="session")
def cluster(temp_directory: str, hosting: Hosting, client_shell: Shell) -> Cluster:
    cluster = Cluster(hosting)
    if cluster.is_local_devenv():
        cluster.create_wallet_configs(hosting)

    ClusterTestBase.shell = client_shell
    ClusterTestBase.cluster = cluster

    yield cluster


@allure.step("[Class]: Provide S3 policy")
@pytest.fixture(scope="class")
def s3_policy(request: pytest.FixtureRequest):
    policy = None
    if "param" in request.__dict__:
        policy = request.param

    return policy


@pytest.fixture(scope="session")
def cluster_state_controller(client_shell: Shell, cluster: Cluster) -> ClusterStateController:
    controller = ClusterStateController(client_shell, cluster)
    yield controller


@allure.step("[Class]: Create S3 client")
@pytest.fixture(scope="class")
def s3_client(
    default_wallet: str,
    client_shell: Shell,
    s3_policy: Optional[str],
    cluster: Cluster,
    auth_container_placement_policy: str,
    request: pytest.FixtureRequest,
) -> S3ClientWrapper:
    wallet = WalletInfo(path=default_wallet, password=DEFAULT_WALLET_PASS)

    (cid, access_key_id, secret_access_key) = s3_helper.init_s3_credentials(
        wallet,
        client_shell,
        cluster,
        s3gates=[cluster_node.s3_gate for cluster_node in cluster.cluster_nodes],
        policy=s3_policy,
        container_placement_policy=auth_container_placement_policy,
    )
    containers_list = list_containers(
        wallet.path, shell=client_shell, endpoint=cluster.default_rpc_endpoint
    )
    assert cid in containers_list, f"Expected cid {cid} in {containers_list}"

    s3_client_cls = request.param
    client = s3_client_cls(access_key_id, secret_access_key, cluster.default_s3_gate_endpoint)
    yield client


@pytest.fixture
def versioning_status(request: pytest.FixtureRequest) -> VersioningStatus:
    if "param" in request.__dict__:
        return request.param

    return VersioningStatus.UNDEFINED


@allure.step("Create/delete bucket")
@pytest.fixture
def bucket(s3_client: S3ClientWrapper, versioning_status: VersioningStatus):
    bucket_name = s3_client.create_bucket()

    if versioning_status:
        s3_helper.set_bucket_versioning(s3_client, bucket_name, versioning_status)

    yield bucket_name
    s3_helper.delete_bucket_with_objects(s3_client, bucket_name)


@allure.step("Create two buckets")
@pytest.fixture
def two_buckets(s3_client: S3ClientWrapper):
    bucket_1 = s3_client.create_bucket()
    bucket_2 = s3_client.create_bucket()
    yield bucket_1, bucket_2
    for bucket_name in [bucket_1, bucket_2]:
        s3_helper.delete_bucket_with_objects(s3_client, bucket_name)


@allure.step("Check binary versions")
@pytest.fixture(scope="session", autouse=True)
def check_binary_versions(hosting: Hosting, client_shell: Shell, request: pytest.FixtureRequest):
    local_versions = version_utils.get_local_binaries_versions(client_shell)
    remote_versions = version_utils.get_remote_binaries_versions(hosting)

    all_versions = {**local_versions, **remote_versions}

    environment_dir = request.config.getoption("--alluredir")
    if not environment_dir:
        return None

    file_path = f"{environment_dir}/environment.properties"
    env_utils.save_env_properties(file_path, all_versions)


@allure.step("Prepare tmp directory")
@pytest.fixture(scope="session")
def temp_directory():
    with allure.step("Prepare tmp directory"):
        full_path = os.path.join(os.getcwd(), ASSETS_DIR)
        shutil.rmtree(full_path, ignore_errors=True)
        os.mkdir(full_path)

    yield full_path

    with allure.step("Remove tmp directory"):
        shutil.rmtree(full_path)


@allure.step("[Autouse/Session] Test session start time")
@pytest.fixture(scope="session", autouse=True)
def session_start_time():
    start_time = datetime.utcnow()
    return start_time


@allure.step("Run health check for all storage nodes")
@pytest.fixture(scope="session", autouse=True)
def run_health_check(session_start_time, cluster: Cluster):
    failed_nodes = []
    for node in cluster.storage_nodes:
        health_check = storage_node_healthcheck(node)
        if health_check.health_status != "READY" or health_check.network_status != "ONLINE":
            failed_nodes.append(node)

    if failed_nodes:
        raise AssertionError(f"Nodes {failed_nodes} are not healthy")


@allure.step("Prepare wallet and deposit")
@pytest.fixture(scope="session")
def default_wallet(wallet_factory: WalletFactory) -> str:
    wallet = wallet_factory.create_wallet(password=DEFAULT_WALLET_PASS)
    allure.attach.file(wallet.path, os.path.basename(wallet.path), allure.attachment_type.JSON)
    return wallet.path


@allure.step("[Class]: Container placement policy for keys")
@pytest.fixture(scope="class")
def auth_container_placement_policy(cluster: Cluster, request: pytest.FixtureRequest):
    auth_container_placement_policy = None
    placeholders = {
        "ALPHABET_NODE_COUNT": 4 if len(cluster.cluster_nodes) < 8 else 8,
        "$NODE_COUNT$": len(cluster.cluster_nodes),
    }
    if "param" in request.__dict__:
        for key, value in placeholders.items():
            auth_container_placement_policy.replace(key, value)
    return auth_container_placement_policy