from threading import Lock
from ldap3.utils.log import set_library_log_detail_level, PROTOCOL

from phi.logging import get_logger
from phi.ldap.connection import make_connection
from phi.ldap.connection import open_connection, close_connection

log = get_logger(__name__)
set_library_log_detail_level(PROTOCOL)


class Client:
    def __init__(self,
                 host=None, port=389,
                 encryption=None, ciphers=None, validate=False, ca_certs=None,
                 username=None, password=None,
                 base_dn=None,
                 attribute_id='uid', attribute_mail='mail'):
        log.info("Initializing LDAP Client.")

        self.host = host
        self.port = port

        self.encryption = encryption
        self.ciphers = ciphers
        self.validate = validate
        self.ca_certs = ca_certs

        self.username = username
        self.password = password

        self.base_dn = base_dn

        self.attribute_id = attribute_id
        self.attribute_mail = attribute_mail

        self.connection_lock = Lock()
        self.connection = make_connection(host=self.host, port=self.port,
                                          encryption=self.encryption,
                                          ciphers=self.ciphers,
                                          validate=self.validate,
                                          ca_certs=self.ca_certs,
                                          username=self.username,
                                          password=self.password)

    def open(self):
        self.connection_lock.acquire()
        if self.connection.closed is True:
            open_connection(self.connection)
            self.connection_lock.release()
        else:
            self.connection_lock.release()
            raise Exception("Trying to open a connection, "
                            "but it is already open.")

    def close(self):
        self.connection_lock.acquire()
        close_connection(self.connection)
        self.connection_lock.release()