#!/usr/bin/env python

from pathlib import Path
from uuid import UUID
from OpenSSL import crypto

from .portal_sat import PortalSAT
from conf import RUTA_FIEL, NOMBRE_FIEL


def validate_uuid(value):
    try:
        UUID(value)
        return True
    except ValueError:
        return False


def validate_fiel(rfc):
    cert = {}
    error = ''

    fiel_cer = f'{NOMBRE_FIEL}.cer'
    fiel_pem = f'{NOMBRE_FIEL}.pem'
    path_fiel = Path(RUTA_FIEL) / rfc.lower()
    path_fiel_cer = path_fiel / fiel_cer
    path_fiel_pem = path_fiel / fiel_pem

    if not path_fiel_cer.exists():
        error = f'No se encontró el archivo: {path_fiel_cer}'
        return cert, error

    if not path_fiel_pem.exists():
        error = f'No se encontró el archivo: {path_fiel_pem}'
        return cert, error

    cert['key'] = str(path_fiel_pem)
    cert['cer'] = str(path_fiel_cer)

    return cert, error


def get_uuid(rfc, cfdi_uuid):
    data = {'error': '', 'xml': ''}

    if not validate_uuid(cfdi_uuid):
        data['error'] = 'UUID inválido'
        return data

    cert, error = validate_fiel(rfc)
    if not cert:
        data['error'] = error
        return data

    sat = PortalSAT()
    sat.login(cert)

    if not sat.is_connect:
        sat.logout()
        data['error'] = sat.error
        log.eror(sat.error)
        return data

    data = sat.get_uuid(cfdi_uuid)
    sat.logout()

    return data