import os
import logging

from data.logs_model.table_logs_model import TableLogsModel
from data.logs_model.document_logs_model import DocumentLogsModel
from data.logs_model.table_document_transition_logs_model import TableDocumentTransitionLogsModel
from data.logs_model.elastic_logs import AWSElasticsearchLogs
from data.logs_model.interface import ActionLogsDataInterface

logger = logging.getLogger(__name__)

_LOG_MODELS = {
  'database': TableLogsModel,
  'transition': TableDocumentTransitionLogsModel,
  'elasticsearch': DocumentLogsModel,
}

class LogsModelProxy(object):
  def __init__(self):
    self._model = None

  def initialize(self, model):
    self._model = model
    logger.info('===============================')
    logger.info('Using logs model `%s`', self._model)
    logger.info('===============================')


  def __getattr__(self, attr):
    if not self._model:
      raise AttributeError("LogsModelProxy is not initialized")
    return getattr(self._model, attr)

logs_model = LogsModelProxy()

def configure(config_object):
  logger.debug('Configuring Log Model')
  model = config_object.get('LOGS_MODEL', ('database', {}))
  model_name = model[0]
  params = {} if len(model) == 1 else model[1]
  logs_model.initialize(_LOG_MODELS[model_name](**params))