from typing import Callable, Iterator, Optional
from sqlalchemy import select
from sqlalchemy.orm import Session


#from ..models.user import  User
from models.user import User
from .security import hash_password, manager
import xml.dom.minidom


import hashlib

from .ldap import LDAPConsole
# lc = None  # LDAP disabilitato temporaneamente

def getText( nodelist):
    rc = []
    for node in nodelist:
        if node.nodeType == node.TEXT_NODE:
            rc.append(node.data)
    return ''.join(rc)

def check_is_admin(uidname):
    # use the parse() function to load and parse an XML file
    doc = xml.dom.minidom.parse("/conf/etc/useradmin/mnusers.xml");
        
    ssonode = doc.getElementsByTagName("useradmin")
    print ( "%d ssonode:" % ssonode.length)
    is_adminlevel= "";    
    for skill in ssonode:
        binddn = getText(skill.getElementsByTagName("uid")[0].childNodes)
        #print(binddn)
        if binddn == uidname:
            is_adminlevel = getText (skill.getElementsByTagName("privilegi")[0].childNodes)
            #print (is_adminlevel)
            break
    return is_adminlevel    


@manager.user_loader()
def get_user_by_name(
    name: str,
    #db: Optional[Session] = None,
    #session_provider: Callable[[], Iterator[Session]] = None
) -> Optional[User]:
    """

    Args:
        name: The name of the user

    Returns:
        The user object or none
    """

#if db is None and session_provider is None:
#        raise ValueError("db and session_provider cannot both be None.")

#    if db is None:
#        db = next(session_provider())
    print (name)
    
    results = lc.doLdapGetUser("ou=users", username=name)
    print (results)
    #user = db.query(User).where(User.username == name).first()
    user=User()
    if results['authen'] == "yeah":
        print ('Welcome', results['authen'])
        user.username = name
        user.password = results['data']['ntPassword']
    else:
        print (' wrong!')
    print (check_is_admin(name))
    if check_is_admin(name) == "gruppo4":
        user.is_admin = True
    print (user)
    return user


# def create_user(name: str, password: str, db: Session, is_admin: bool = False) -> User:
    # """
    # Creates and commits a new user object to the database

    # Args:
        # name: The name of the user
        # password: The plaintext password
        # db: The active db session
        # is_admin: Whether the user is a admin, defaults to false

    # Returns:
        # The newly created user.
    # """
    # hashed_pw = hash_password(password)
    # user = User(username=name, password=hashed_pw, is_admin=is_admin)
    # db.add(user)
    # db.commit()
    # return user


# def create_post(text: str, owner: User, db: Session) -> Post:
    # post = Post(text=text, owner=owner)
    # db.add(post)
    # db.commit()
    # db.close()
    # return post