# -*- 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_docs(request, doc_id):
    """Lire les doc"""
    if doc_id == 0:
        query = "SELECT * FROM docs ORDER BY theme, intitule;"
        results = request.dbsession.execute(query).fetchall()
    elif doc_id == -1:
        query = "SELECT * FROM docs where theme <> 'INTERNE' ORDER BY theme, intitule;"
        results = request.dbsession.execute(query).fetchall()
    else:
        query = "SELECT * FROM docs where doc_id = :doc_id;"
        results = request.dbsession.execute(query, {'doc_id': doc_id}).first()
    return results

def update_doc(request, doc_id, intitule, texte, theme):
    """créér ou modifier le doc"""
    if doc_id == '0':
        query = "INSERT INTO docs (intitule, texte, theme) VALUES(:intitule, :texte, :theme);"
        execute_query(request, query, {'intitule': intitule, 'texte': texte, 'theme': theme})
    else:
        query = "update docs set intitule=:intitule, texte=:texte, theme=:theme where doc_id = :doc_id;"
        execute_query(request, query, {'doc_id': doc_id, 'intitule': intitule, 'texte': texte, 'theme': theme})

def delete_doc(request, doc_id):
    """supprimer la doc"""
    query = "delete from docs where doc_id = :doc_id;"
    results = request.dbsession.execute(query, {'doc_id': doc_id})

def get_categories(request, no_cat):
    if no_cat == '0':
        query = "SELECT * FROM categories ORDER BY categorie"
        results = request.dbsession.execute(query).fetchall()
    else:
        # lire le actif par son identifiant
        query = """SELECT * FROM categories WHERE no_cat=:no_cat;"""
        results = request.dbsession.execute(query, {'no_cat': no_cat}).first()
    return results

def update_categorie(request, no_cat, new_values):
    # formater les champs
    s = ''
    for param in new_values.keys():
        if s:
            s += ",%s=:%s" % (param, param)
        else:
            s = "%s=:%s" % (param, param)

    if no_cat == '0':
        query = "INSERT INTO categories SET %s" % s
    else:
        new_values['no_cat'] = no_cat
        query = "UPDATE categories SET %s WHERE no_cat = :no_cat;" % s
    execute_query(request, query, new_values)

def delete_categorie(request, no_cat):
    query = "DELETE FROM categories WHERE no_cat = :no_cat ;"
    execute_query(request, query, {'no_cat': no_cat})