import json

import allure
import pytest
from frostfs_testlib import reporter
from frostfs_testlib.cli import FrostfsCli
from frostfs_testlib.resources.cli import CLI_DEFAULT_TIMEOUT
from frostfs_testlib.resources.wellknown_acl import EACL_PUBLIC_READ_WRITE
from frostfs_testlib.steps.cli.container import create_container, delete_container
from frostfs_testlib.steps.cli.object import delete_object, get_object, get_object_nodes, put_object
from frostfs_testlib.storage.cluster import Cluster, ClusterNode, StorageNode
from frostfs_testlib.storage.controllers import ClusterStateController, ShardsWatcher
from frostfs_testlib.storage.controllers.state_managers.config_state_manager import ConfigStateManager
from frostfs_testlib.storage.dataclasses.shard import Shard
from frostfs_testlib.storage.dataclasses.wallet import WalletInfo
from frostfs_testlib.testing import parallel, wait_for_success
from frostfs_testlib.testing.cluster_test_base import ClusterTestBase
from frostfs_testlib.utils.file_utils import generate_file


@pytest.mark.nightly
@pytest.mark.shard
class TestControlShard(ClusterTestBase):
    @staticmethod
    @wait_for_success(180, 30)
    def get_object_path_and_name_file(oid: str, cid: str, node: ClusterNode) -> tuple[str, str]:
        oid_path = f"{oid[0]}/{oid[1]}/{oid[2]}/{oid[3]}"
        object_path = None

        with reporter.step("Search object file"):
            node_shell = node.storage_node.host.get_shell()
            data_path = node.storage_node.get_data_directory()
            all_datas = node_shell.exec(f"ls -la {data_path}/data | awk '{{ print $9 }}'").stdout.strip()
            for data_dir in all_datas.replace(".", "").strip().split("\n"):
                check_dir = node_shell.exec(f" [ -d {data_path}/data/{data_dir}/data/{oid_path} ] && echo 1 || echo 0").stdout
                if "1" in check_dir:
                    object_path = f"{data_path}/data/{data_dir}/data/{oid_path}"
                    object_name = f"{oid[4:]}.{cid}"
                    break

        assert object_path is not None, f"{oid} object not found in directory - {data_path}/data"
        return object_path, object_name

    def set_shard_rw_mode(self, node: ClusterNode):
        watcher = ShardsWatcher(node)
        shards = watcher.get_shards()
        for shard in shards:
            watcher.set_shard_mode(shard["shard_id"], mode="read-write")
        watcher.await_for_all_shards_status(status="read-write")

    @pytest.fixture()
    @allure.title("Revert all shards mode")
    def revert_all_shards_mode(self) -> None:
        yield
        parallel(self.set_shard_rw_mode, self.cluster.cluster_nodes)

    @pytest.fixture()
    def oid_cid_node(self, default_wallet: WalletInfo, max_object_size: int) -> tuple[str, str, ClusterNode]:
        with reporter.step("Create container, and put object"):
            cid = create_container(
                wallet=default_wallet,
                shell=self.shell,
                endpoint=self.cluster.default_rpc_endpoint,
                rule="REP 1 CBF 1",
                basic_acl=EACL_PUBLIC_READ_WRITE,
            )
            file = generate_file(round(max_object_size * 0.8))
            oid = put_object(wallet=default_wallet, path=file, cid=cid, shell=self.shell, endpoint=self.cluster.default_rpc_endpoint)
        with reporter.step("Search node with object"):
            nodes = get_object_nodes(cluster=self.cluster, cid=cid, oid=oid, alive_node=self.cluster.cluster_nodes[0])

        yield oid, cid, nodes[0]

        object_path, object_name = self.get_object_path_and_name_file(oid, cid, nodes[0])
        nodes[0].host.get_shell().exec(f"chmod +r {object_path}/{object_name}")
        delete_object(wallet=default_wallet, cid=cid, oid=oid, shell=self.shell, endpoint=self.cluster.default_rpc_endpoint)
        delete_container(wallet=default_wallet, cid=cid, shell=self.shell, endpoint=self.cluster.default_rpc_endpoint)

    @staticmethod
    def get_shards_from_cli(node: StorageNode) -> list[Shard]:
        wallet_path = node.get_remote_wallet_path()
        wallet_password = node.get_wallet_password()
        control_endpoint = node.get_control_endpoint()

        cli_config = node.host.get_cli_config("frostfs-cli")

        cli = FrostfsCli(node.host.get_shell(), cli_config.exec_path)
        result = cli.shards.list(
            endpoint=control_endpoint,
            wallet=wallet_path,
            wallet_password=wallet_password,
            json_mode=True,
            timeout=CLI_DEFAULT_TIMEOUT,
        )
        return [Shard.from_object(shard) for shard in json.loads(result.stdout.split(">", 1)[1])]

    @pytest.fixture()
    def change_config_storage(self, cluster_state_controller: ClusterStateController):
        with reporter.step("Change threshold error shards"):
            cluster_state_controller.manager(ConfigStateManager).set_on_all_nodes(
                service_type=StorageNode, values={"storage:shard_ro_error_threshold": "5"}
            )
        yield
        with reporter.step("Restore threshold error shards"):
            cluster_state_controller.manager(ConfigStateManager).revert_all()

    @allure.title("All shards are available")
    def test_control_shard(self, cluster: Cluster):
        for storage_node in cluster.storage_nodes:
            shards_from_config = storage_node.get_shards()
            shards_from_cli = self.get_shards_from_cli(storage_node)

            assert set(shards_from_config) == set(shards_from_cli)

    @allure.title("Shard become read-only when errors exceeds threshold")
    @pytest.mark.failover
    def test_shard_errors(
        self,
        default_wallet: WalletInfo,
        oid_cid_node: tuple[str, str, ClusterNode],
        change_config_storage: None,
        revert_all_shards_mode: None,
    ):
        oid, cid, node = oid_cid_node
        with reporter.step("Search object in system."):
            object_path, object_name = self.get_object_path_and_name_file(*oid_cid_node)
        with reporter.step("Block read file"):
            node.host.get_shell().exec(f"chmod a-r {object_path}/{object_name}")
        with reporter.step("Get object, expect 6 errors"):
            for _ in range(6):
                with pytest.raises(RuntimeError):
                    get_object(
                        wallet=default_wallet,
                        cid=cid,
                        oid=oid,
                        shell=self.shell,
                        endpoint=node.storage_node.get_rpc_endpoint(),
                    )
        with reporter.step("Check shard status"):
            for shard in ShardsWatcher(node).get_shards():
                if shard["blobstor"][1]["path"] in object_path:
                    with reporter.step(f"Shard - {shard['shard_id']} to {node.host_ip}, mode - {shard['mode']}"):
                        assert shard["mode"] == "read-only"
                        break