from urllib.parse import urlparse
from getpass import getpass
import re

from ...models import Credentials
from ...service import storage
from ...service.connection import DockgeConnection
from ..utils import stack_formatter, status_formatter, generic_formatter, credential_parser_factory

class FunctionBindings():
    """
    Helper class that provides all the static methods in an organized way
    This is an abstraction layer of the CLI, as those functions only do little preprocessing before calling the actural DockgeConnection
    """
    @staticmethod
    def __setup():
        """
        Creates a connection and logs into Dockge
        """
        con = DockgeConnection()
        con.connect_and_login()
        return con

    @staticmethod
    def host(extra_args):
        """
        host command binding
        """
        if len(extra_args) > 0:
            mat = re.search(r"((\w+\.)?\w+\.\w+(\/.+)?)", extra_args[0], re.IGNORECASE)
            if mat is None:
                raise ValueError("Given host did not match regex")
            res = urlparse(f"https://{mat[0]}")
            if all([res.scheme, res.netloc]):
                storage.put("host", mat[0])
            else:
                raise ValueError(f"Malformed URL {extra_args[0]}")
        print(storage.get("host"))

    @staticmethod
    def login(extra_args):
        """
        login command binding
        """
        print(f"WARNING! These credentials will be saved unencrypted in {storage._file.absolute()}")
        if len(extra_args) > 0:
            credentials = credential_parser_factory().parse_args(extra_args, namespace=Credentials)
            storage.put("username", credentials.username, encoded=True)
            storage.put("password", credentials.password, encoded=True)
            return
        storage.put("username", input("Username: "), encoded=True)
        storage.put("password", getpass("Password: "), encoded=True)

    @staticmethod
    def logout(_):
        """
        logout command binding
        """
        storage.remove("username")
        storage.remove("password")

    @staticmethod
    def exit(_):
        """
        exit command binding
        """
        storage.clear()

    @staticmethod
    def list(_):
        """
        list command binding
        """
        con = FunctionBindings.__setup()
        stack_formatter(con.list_stacks())
        con.disconnect()

    @staticmethod
    def status(extra_args):
        """
        status command binding
        """
        con = FunctionBindings.__setup()
        status_formatter(con.list_stack(extra_args[0]))
        con.disconnect()

    @staticmethod
    def restart(extra_args):
        """
        restart command binding
        """
        con = FunctionBindings.__setup()
        generic_formatter(con.restart(extra_args[0]))
        con.disconnect()

    @staticmethod
    def update(extra_args):
        """
        update command binding
        """
        con = FunctionBindings.__setup()
        generic_formatter(con.update(extra_args[0]))
        con.disconnect()

    @staticmethod
    def stop(extra_args):
        """
        stop command binding
        """
        con = FunctionBindings.__setup()
        generic_formatter(con.stop(extra_args[0]))
        con.disconnect()

    @staticmethod
    def start(extra_args):
        """
        start command binding
        """
        con = FunctionBindings.__setup()
        generic_formatter(con.start(extra_args[0]))
        con.disconnect()

    @staticmethod
    def down(extra_args):
        """
        down command binding
        """
        con = FunctionBindings.__setup()
        generic_formatter(con.down(extra_args[0]))
        con.disconnect()

    @staticmethod
    def help():
        """
        exit command binding - This should never be invoked
        """
        print("WTF")