'''

    Script d'export des données de configuration des applcations SuiviDesActivtes et SuiviActivitePC

    Les données d'origine sont issues de la base \\h2o\LOCAL\4-transversal\BDD\mdb\PDA\db_PDA.mdb

    Les fichiers résultats sont les fichiers *.xml du répertoire \\h2o\LOCAL\4-transversal\BDD\mdb\PDA\Fichiers_PDA\

'''
import logging

from lxml import builder  # @UnresolvedImport
from lxml import etree  # @UnresolvedImport
from path import Path  # @UnusedImport

from core import logconf
from core.pde import PdaDb, PDA_FILES_DEST


logger = logging.getLogger("pda2suiviactivite")
logconf.start("pda2suiviactivite", logging.DEBUG)

logger.info("Initialization")


# # POUR TESTER, décommenter les lignes suivantes
##-----------------------------------------------

# PDA_FILES_DEST = Path(r"\\h2o\local\4-transversal\BDD\mdb_test\PDA\Fichiers_PDA")
# PdaDb._path = Path(r"\\h2o\local\4-transversal\BDD\mdb_test\PDA\db_PDA.mdb")
# logger.handlers = [h for h in logger.handlers if (type(h) == logging.StreamHandler)]
# logger.warning("Mode TEST")

##-----------------------------------------------


# Connect to db_PDA.mdb
pda_db = PdaDb(autocommit=True)


# Explication du mapping ci dessous:
    # (
    #  nom de la table,
    #  {champ: noeud),
    #  nom des nodes contenant chaque enregistrement,
    #  nom du fichier cible
    # Order by
    # )

mapping = [
            ("pdaEngin",
             {"strEnginId": "Id", "strEnginLibelleLong": "Nom"},
             "Attelage",
             "attelages.xml",
             ["strEnginLibelleLong"]
             ),
            ("pdaorigine",
             {"lngorigine": "Id", "strorigine": "Nom"},
             "Depart",
             "depart.xml",
             ["strorigine"]
             ),
            ("pdaHeures",
             {"annee": "annee", "mois": "mois", "heures": "heures"},
             "pdaHeures",
             "heures.xml",
             ["annee", "mois"]
             ),
            ("pdaEquip",
             {"strEquipesId": "Id", "strEquipesLibelle": "Nom"},
             "Equipe",
             "equipes.xml",
             ["strEquipesLibelle"]
             ),
            ("pdalocalisation",
             {"lngTiersId": "Id", "strTiersMnemo": "Nom"},
             "Localisation",
             "localisation.xml",
             ["strTiersMnemo"]
             ),
            ("pdaNatInterv",
             {"strCategorieInterventioinId": "Id", "strCategorieInterventioinLibelle": "Nom"},
             "NatureRealisation",
             "naturesinterventions.xml",
             ["strCategorieInterventioinLibelle"]
             )
          ]

for tablename, fieldmapping, eltname, filename, order in mapping:

    maker = builder.ElementMaker(nsmap={'xsd': "http://www.w3.org/2001/XMLSchema",
                                        'xsi': "http://www.w3.org/2001/XMLSchema-instance"})
    nodes = []


    sql = "SELECT {mapping} FROM {tbl} ORDER BY {order}".format(
                                                            mapping=",".join(["[{}].[{}] as {}".format(tablename, key, val) for key, val in fieldmapping.items()]),
                                                            tbl=tablename,
                                                            order=",".join(order)
                                                            )
    logger.debug(sql)

    data = [record._asdict() for record in pda_db.read_all(sql)]

    for record in data:
        node = maker.__call__(eltname, *[maker.__call__(field, str(value)) for field, value in record.items()])
        nodes.append(node)

    root = maker.__call__("ArrayOf" + eltname, *nodes)

    if not filename[-4:] == ".xml":
        filename += ".xml"

    with open(PDA_FILES_DEST / filename, "wb") as f:
        f.write(etree.tostring(root, xml_declaration=True, encoding='utf-8', pretty_print=True))
    logger.info("> Exporte: {}".format(filename))

logger.info("Export termine")