import pkgutil
import sys
import platform
import pkg_resources
import textwrap

import cpl_cli
from cpl_cli.helper.dependencies import Dependencies
from cpl_core.console.console import Console
from cpl_core.console.foreground_color_enum import ForegroundColorEnum
from cpl_cli.command_abc import CommandABC


class VersionService(CommandABC):
    def __init__(self):
        """
        Service for the CLI command version
        """
        CommandABC.__init__(self)

    @property
    def help_message(self) -> str:
        return textwrap.dedent(
            """\
        Lists the version of CPL, CPL CLI and all installed packages from pip.
        Usage: cpl version
        """
        )

    def execute(self, args: list[str]):
        """
        Entry point of command
        :param args:
        :return:
        """
        Console.set_foreground_color(ForegroundColorEnum.yellow)
        Console.banner("CPL CLI")
        Console.set_foreground_color(ForegroundColorEnum.default)
        if "__version__" in dir(cpl_cli):
            Console.write_line(f"Common Python library CLI: ")
            Console.write(cpl_cli.__version__)

        Console.write_line(f"Python: ")
        Console.write(f"{sys.version_info.major}.{sys.version_info.minor}.{sys.version_info.micro}")
        Console.write_line(f"OS: {platform.system()} {platform.processor()}")
        Console.write_line("\nCPL packages:")
        Console.table(["Name", "Version"], Dependencies.get_cpl_packages())
        Console.write_line("\nPython packages:")
        Console.table(["Name", "Version"], Dependencies.get_packages())