# -*- coding: utf8 -*-
from sqlalchemy import text
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import (
    scoped_session,
    sessionmaker,
)
from zope.sqlalchemy import (
    ZopeTransactionExtension, 
    mark_changed
)

from datetime import *
import transaction

def execute_query(request, query, params):
    """Execute query and mark session as changed"""
    request.dbsession.execute(query, params)
    mark_changed(request.dbsession)
    transaction.commit()

def get_member_by_mdp_oublie(request, lien):
    query = "SELECT * FROM p_users WHERE mdp_oublie=:lien;"
    results = request.dbsession.execute(query, {'lien':lien}).first()
    return results

def get_member_by_id(request, mbr_id):
    # lire le membres par son identifianr
    query = """SELECT * FROM p_users WHERE CD_UTI=:mbr_id;"""
    results = request.dbsession.execute(query, {'mbr_id': mbr_id}).first()
    return results

def update_membre_mdp_oublie(request, login):
    import base64
    import uuid

    # get a UUID - URL safe, Base64
    r_uuid = base64.urlsafe_b64encode(uuid.uuid4().bytes)
    r_uuid = r_uuid.replace('=', '')
    query = "UPDATE p_users SET mdp_oublie=:r_uuid, mdp_oublie_date=now() WHERE CD_UTI=:login;"
    execute_query(request, query, {'r_uuid':r_uuid, 'login':login})
    return r_uuid

def update_membre_mdp(request, login, password):
    """Update password for member login"""
    query = "UPDATE p_users SET mdp = SHA1(:password), mdp_oublie=NULL, mdp_oublie_date=NULL WHERE CD_UTI=:login;"
    execute_query(request, query, {'login': login, 'password': password})