import logging
import os
import random
import shutil
from datetime import datetime, timedelta, timezone
from importlib.metadata import entry_points
from typing import Optional

import allure
import pytest
import yaml
from dateutil import parser
from frostfs_testlib import plugins, reporter
from frostfs_testlib.credentials.interfaces import CredentialsProvider, User
from frostfs_testlib.healthcheck.interfaces import Healthcheck
from frostfs_testlib.hosting import Hosting
from frostfs_testlib.reporter import AllureHandler, StepsLogger
from frostfs_testlib.resources.common import (
    ASSETS_DIR,
    COMPLEX_OBJECT_CHUNKS_COUNT,
    COMPLEX_OBJECT_TAIL_SIZE,
    SIMPLE_OBJECT_SIZE,
)
from frostfs_testlib.s3 import AwsCliClient, Boto3ClientWrapper, S3ClientWrapper, VersioningStatus
from frostfs_testlib.shell import LocalShell, Shell
from frostfs_testlib.steps.cli.container import DEFAULT_EC_PLACEMENT_RULE, DEFAULT_PLACEMENT_RULE
from frostfs_testlib.steps.cli.object import get_netmap_netinfo
from frostfs_testlib.steps.s3 import s3_helper
from frostfs_testlib.storage import get_service_registry
from frostfs_testlib.storage.cluster import Cluster, ClusterNode
from frostfs_testlib.storage.controllers.cluster_state_controller import ClusterStateController
from frostfs_testlib.storage.dataclasses.frostfs_services import StorageNode
from frostfs_testlib.storage.dataclasses.object_size import ObjectSize
from frostfs_testlib.storage.dataclasses.policy import PlacementPolicy
from frostfs_testlib.storage.dataclasses.wallet import WalletInfo
from frostfs_testlib.testing.cluster_test_base import ClusterTestBase
from frostfs_testlib.testing.parallel import parallel
from frostfs_testlib.testing.test_control import wait_for_success
from frostfs_testlib.utils import env_utils, version_utils
from frostfs_testlib.utils.file_utils import generate_file

from pytest_tests.resources.common import HOSTING_CONFIG_FILE, TEST_CYCLES_COUNT

logger = logging.getLogger("NeoLogger")

SERVICE_ACTIVE_TIME = 20

# 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 != "" and "sanity" not in markers:
        config.option.markexpr = f"logs_after_session or ({markers})"


number_key = pytest.StashKey[str]()
start_time = pytest.StashKey[int]()
test_outcome = pytest.StashKey[str]()
# 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
        is_system_time_test = 10 if item.get_closest_marker("time") else 0
        return is_node_mgmt_test + is_logs_check_test + is_system_time_test

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


# pytest hook. Do not rename
def pytest_collection_finish(session: pytest.Session):
    items_total = len(session.items)
    for number, item in enumerate(session.items, 1):
        item.stash[number_key] = f"[{number}/{items_total}]"
        item.stash[test_outcome] = ""
        item.stash[start_time] = 0


# pytest hook. Do not rename
def pytest_runtest_setup(item: pytest.Item):
    item.stash[start_time] = int(datetime.now().timestamp())
    logger.info(f"STARTED {item.stash[number_key]}: {item.name}")


# pytest hook. Do not rename
def pytest_runtest_makereport(item: pytest.Item, call: pytest.CallInfo):
    if call.excinfo is not None:
        if call.excinfo.typename == "Skipped":
            item.stash[start_time] = int(datetime.now().timestamp())
            item.stash[test_outcome] += f"SKIPPED on {call.when}; "
        else:
            item.stash[test_outcome] += f"FAILED on {call.when}; "

    if call.when == "teardown":
        duration = int(datetime.now().timestamp()) - item.stash[start_time]
        if not item.stash[test_outcome]:
            outcome = "PASSED "
        else:
            outcome = item.stash[test_outcome]
        logger.info(f"ENDED {item.stash[number_key]}: {item.name}: {outcome}(duration={duration}s)")


# pytest hook. Do not rename
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():
    reporter.get_reporter().register_handler(AllureHandler())
    reporter.get_reporter().register_handler(StepsLogger())

    logging.getLogger("paramiko").setLevel(logging.INFO)

    # Register Services for cluster
    registry = get_service_registry()
    services = entry_points(group="frostfs.testlib.services")
    for svc in services:
        registry.register_service(svc.name, svc.load())

    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 require_multiple_interfaces(cluster: Cluster):
    """
    We determine that there are the required number of interfaces for tests

    If there are no required interfaces, the tests will be skipped.
    """
    interfaces = cluster.cluster_nodes[0].host.config.interfaces
    if "internal1" not in interfaces or "data1" not in interfaces:
        pytest.skip("This test requires multiple internal and data interfaces")
    yield


@pytest.fixture(scope="session")
def max_object_size(cluster: Cluster, client_shell: Shell) -> int:
    storage_node = cluster.storage_nodes[0]
    wallet = WalletInfo.from_node(storage_node)
    net_info = get_netmap_netinfo(
        wallet=wallet,
        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()
def file_path(object_size: ObjectSize) -> str:
    yield generate_file(object_size.value)


@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=[pytest.param("simple", marks=pytest.mark.simple), pytest.param("complex", marks=pytest.mark.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 rep_placement_policy() -> PlacementPolicy:
    return PlacementPolicy("rep", DEFAULT_PLACEMENT_RULE)


@pytest.fixture(scope="session")
def ec_placement_policy() -> PlacementPolicy:
    return PlacementPolicy("ec", DEFAULT_EC_PLACEMENT_RULE)


# By default we want all tests to be executed with both storage policies.
# This can be overriden in choosen tests if needed.
@pytest.fixture(
    scope="session",
    params=[pytest.param("rep", marks=pytest.mark.rep), pytest.param("ec", marks=pytest.mark.ec)],
)
def placement_policy(
    rep_placement_policy: PlacementPolicy, ec_placement_policy: PlacementPolicy, request: pytest.FixtureRequest
) -> PlacementPolicy:
    if request.param == "rep":
        return rep_placement_policy

    return ec_placement_policy


@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


@reporter.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")
@allure.title("[Session] Create healthcheck object")
def healthcheck(cluster: Cluster) -> Healthcheck:
    healthcheck_cls = plugins.load_plugin(
        "frostfs.testlib.healthcheck", cluster.cluster_nodes[0].host.config.healthcheck_plugin_name
    )

    return healthcheck_cls()


@pytest.fixture(scope="session")
def cluster_state_controller_session(
    client_shell: Shell, cluster: Cluster, healthcheck: Healthcheck
) -> ClusterStateController:
    controller = ClusterStateController(client_shell, cluster, healthcheck)
    return controller


@pytest.fixture
def cluster_state_controller(cluster_state_controller_session: ClusterStateController) -> ClusterStateController:
    yield cluster_state_controller_session
    cluster_state_controller_session.start_stopped_hosts()
    cluster_state_controller_session.start_all_stopped_services()


@pytest.fixture(scope="session")
def credentials_provider(cluster: Cluster) -> CredentialsProvider:
    return CredentialsProvider(cluster)


@reporter.step("[Class]: Create S3 client")
@pytest.fixture(
    scope="class",
    params=[
        pytest.param(AwsCliClient, marks=pytest.mark.aws),
        pytest.param(Boto3ClientWrapper, marks=pytest.mark.boto3),
    ],
)
def s3_client(
    default_user: User,
    s3_policy: Optional[str],
    cluster: Cluster,
    request: pytest.FixtureRequest,
    credentials_provider: CredentialsProvider,
) -> S3ClientWrapper:
    node = cluster.cluster_nodes[0]
    credentials_provider.S3.provide(default_user, node, s3_policy)

    s3_client_cls = request.param
    client = s3_client_cls(
        default_user.s3_credentials.access_key, default_user.s3_credentials.secret_key, cluster.default_s3_gate_endpoint
    )
    return client


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

    return VersioningStatus.UNDEFINED


@reporter.step("Create/delete bucket")
@pytest.fixture
def bucket(s3_client: S3ClientWrapper, versioning_status: VersioningStatus, request: pytest.FixtureRequest):

    bucket_name = s3_client.create_bucket()

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

    yield bucket_name

    if "sanity" not in request.config.option.markexpr:
        s3_helper.delete_bucket_with_objects(s3_client, bucket_name)


@reporter.step("Create two buckets")
@pytest.fixture
def two_buckets(s3_client: S3ClientWrapper, request: pytest.FixtureRequest):
    bucket_1 = s3_client.create_bucket()
    bucket_2 = s3_client.create_bucket()
    yield bucket_1, bucket_2

    if "sanity" not in request.config.option.markexpr:
        for bucket_name in [bucket_1, bucket_2]:
            s3_helper.delete_bucket_with_objects(s3_client, bucket_name)


@allure.title("[Autouse/Session] 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, exсeptions_remote_binaries_versions = version_utils.get_remote_binaries_versions(hosting)

    all_versions = {
        **local_versions,
        **{binary_name: binary["version"] for binary_name, binary in remote_versions.items()},
    }

    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)


@reporter.step("Prepare tmp directory")
@pytest.fixture(scope="session")
def temp_directory(configure_testlib):
    with reporter.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 reporter.step("Remove tmp directory"):
        shutil.rmtree(full_path)


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


@allure.title("[Autouse/Session] After deploy healthcheck")
@pytest.fixture(scope="session", autouse=True)
def after_deploy_healthcheck(cluster: Cluster):
    with reporter.step("Wait for cluster readiness after deploy"):
        parallel(readiness_on_node, cluster.cluster_nodes)


@wait_for_success(60 * SERVICE_ACTIVE_TIME * 3, 60, title="Wait for {cluster_node} readiness")
def readiness_on_node(cluster_node: ClusterNode):
    if (
        "skip_readiness_check" in cluster_node.host.config.attributes
        and cluster_node.host.config.attributes["skip_readiness_check"]
    ):
        return

    # TODO: Move to healtcheck classes
    svc_name = cluster_node.service(StorageNode).get_service_systemctl_name()
    with reporter.step(f"Check service {svc_name} is active"):
        result = cluster_node.host.get_shell().exec(f"systemctl is-active {svc_name}")
        assert "active" == result.stdout.strip(), f"Service {svc_name} should be in active state"

    with reporter.step(f"Check service {svc_name} is active more than {SERVICE_ACTIVE_TIME} minutes"):
        result = cluster_node.host.get_shell().exec(
            f"systemctl show {svc_name} --property ActiveEnterTimestamp | cut -d '=' -f 2"
        )
        start_time = parser.parse(result.stdout.strip())
        current_time = datetime.now(tz=timezone.utc)
        active_time = current_time - start_time

        active_minutes = active_time.seconds // 60
        active_seconds = active_time.seconds - active_minutes * 60

        assert active_time > timedelta(
            minutes=SERVICE_ACTIVE_TIME
        ), f"Service should be in active state more than {SERVICE_ACTIVE_TIME} minutes, current {active_minutes}m:{active_seconds}s"


@allure.title("[Autouse/Test] Run health check for all nodes")
@pytest.fixture(autouse=True)
def run_health_check(healthcheck: Healthcheck, cluster: Cluster, request: pytest.FixtureRequest):
    if request.node.get_closest_marker("no_healthcheck"):
        # Skip healthcheck for tests marked with no_healthcheck
        return
    parallel(healthcheck.storage_healthcheck, cluster.cluster_nodes)


@reporter.step("Prepare default user with wallet")
@pytest.fixture(scope="session")
def default_user(credentials_provider: CredentialsProvider, cluster: Cluster) -> User:
    # always unique username
    user = User(f"user_{hex(int(datetime.now().timestamp() * 1000000))}")
    node = cluster.cluster_nodes[0]

    credentials_provider.GRPC.provide(user, node)

    return user


@reporter.step("Get wallet for default user")
@pytest.fixture(scope="session")
def default_wallet(default_user: User) -> WalletInfo:
    return default_user.wallet


@pytest.fixture()
@allure.title("Select random node for testing")
def node_under_test(cluster: Cluster) -> ClusterNode:
    selected_node = random.choice(cluster.cluster_nodes)
    reporter.attach(f"{selected_node}", "Selected node")
    return selected_node