import os
import shutil
import time
from datetime import datetime, timezone

import allure
import pytest
from frostfs_testlib import reporter
from frostfs_testlib.hosting import Host
from frostfs_testlib.testing.cluster_test_base import Cluster
from frostfs_testlib.testing.parallel import parallel


def pytest_generate_tests(metafunc: pytest.Metafunc):
    metafunc.fixturenames.append("repo")
    metafunc.fixturenames.append("markers")
    metafunc.parametrize(
        "repo, markers",
        [("frostfs-testcases", metafunc.config.option.markexpr)],
    )


@pytest.mark.logs_after_session
class TestLogs:
    @pytest.mark.order(1000)
    @allure.title("Check logs from frostfs-testcases with marks '{request.config.option.markexpr}' - search errors")
    def test_logs_search_errors(
        self, temp_directory: str, cluster: Cluster, session_start_time: datetime, request: pytest.FixtureRequest
    ):
        end_time = datetime.now(timezone.utc)
        logs_dir = os.path.join(temp_directory, "logs")
        if not os.path.exists(logs_dir):
            os.makedirs(logs_dir)

        issues_regex = r"\bpanic\b|\boom\b|too many|insufficient funds|insufficient amount of gas|cannot assign requested address|\bunable to process\b"
        exclude_filter = r"too many requests"
        log_level_priority = "3"  # will include 0-3 priority logs (0: emergency 1: alerts 2: critical 3: errors)

        time.sleep(2)

        futures = parallel(
            self._collect_logs_on_host,
            cluster.hosts,
            logs_dir,
            issues_regex,
            session_start_time,
            end_time,
            exclude_filter,
            priority=log_level_priority,
        )

        hosts_with_problems = [
            future.result() for future in futures if not future.exception() and future.result() is not None
        ]
        if hosts_with_problems:
            self._attach_logs(logs_dir)

        assert (
            not hosts_with_problems
        ), f"The following hosts contains critical errors in system logs: {', '.join(hosts_with_problems)}"

    @pytest.mark.order(1001)
    @allure.title(
        "Check logs from frostfs-testcases with marks '{request.config.option.markexpr}' - identify sensitive data"
    )
    def test_logs_identify_sensitive_data(
        self, temp_directory: str, cluster: Cluster, session_start_time: datetime, request: pytest.FixtureRequest
    ):
        end_time = datetime.now(timezone.utc)
        logs_dir = os.path.join(temp_directory, "logs")
        if not os.path.exists(logs_dir):
            os.makedirs(logs_dir)

        _regex = {
            "authorization_basic": r"basic [a-zA-Z0-9=:_\+\/-]{16,100}",
            "authorization_bearer": r"bearer [a-zA-Z0-9_\-\.=:_\+\/]{16,100}",
            "access_token": r"\"access_token\":\"[0-9a-z]{16}\$[0-9a-f]{32}\"",
            "api_token": r"\"api_token\":\"(xox[a-zA-Z]-[a-zA-Z0-9-]+)\"",
            "yadro_access_token": r"[a-zA-Z0-9_-]*:[a-zA-Z0-9_\-]+@yadro\.com*",
            "SSH_privKey": r"([-]+BEGIN [^\s]+ PRIVATE KEY[-]+[\s]*[^-]*[-]+END [^\s]+ PRIVATE KEY[-]+)",
            "possible_Creds": r"(?i)("
            r"password\s*[`=:]+\s*[^\s]+|"
            r"password is\s*[`=:]*\s*[^\s]+|"
            r"passwd\s*[`=:]+\s*[^\s]+)",
        }

        issues_regex = "|".join(_regex.values())
        exclude_filter = "COMMAND="

        time.sleep(2)

        futures = parallel(
            self._collect_logs_on_host,
            cluster.hosts,
            logs_dir,
            issues_regex,
            session_start_time,
            end_time,
            exclude_filter,
        )

        hosts_with_problems = [
            future.result() for future in futures if not future.exception() and future.result() is not None
        ]
        if hosts_with_problems:
            self._attach_logs(logs_dir)

        assert (
            not hosts_with_problems
        ), f"The following hosts contains sensitive data in system logs: {', '.join(hosts_with_problems)}"

    def _collect_logs_on_host(
        self,
        host: Host,
        logs_dir: str,
        regex: str,
        since: datetime,
        until: datetime,
        exclude_filter: str,
        priority: str = None,
    ):
        with reporter.step(f"Get logs from {host.config.address}"):
            logs = host.get_filtered_logs(
                filter_regex=regex, since=since, until=until, exclude_filter=exclude_filter, priority=priority
            )

        if not logs:
            return None

        with open(os.path.join(logs_dir, f"{host.config.address}.log"), "w") as file:
            file.write(logs)

        return host.config.address

    def _attach_logs(self, logs_dir: str) -> None:
        # Zip all files and attach to Allure because it is more convenient to download a single
        # zip with all logs rather than mess with individual logs files per service or node
        logs_zip_file_path = shutil.make_archive(logs_dir, "zip", logs_dir)
        reporter.attach(logs_zip_file_path, "logs.zip")