"""
Contains Kernel class
"""

import requests
from distro import Distro
from shared import CSC_MIRROR

class Kernel(Distro):
    """Kernel class"""
    @staticmethod
    def __get_line_count(checksum_file_url):
        """Get Kernel line count of checksum file"""
        response_text = requests.get(checksum_file_url).text
        return len(response_text.split('\n'))

    @staticmethod
    def name():
        """Get name of Kernel"""
        return "Kernel"

    @staticmethod
    def check():
        """Check if Kernel packages are up-to-date"""
        official_line_count = Kernel.__get_line_count(
            "https://mirrors.edge.kernel.org/pub/linux/kernel/next/sha256sums.asc")
        csc_line_count = Kernel.__get_line_count(
            f"{CSC_MIRROR}kernel.org/linux/kernel/next/sha256sums.asc")
        # A new update on a certain day adds 2 new lines
        return official_line_count <= csc_line_count + 2