from bitbucket import BitBucket

from util import get_app_url_from_scheme_hostname
from util.config.validators import BaseValidator, ConfigValidationException

class BitbucketTriggerValidator(BaseValidator):
  name = "bitbucket-trigger"

  @classmethod
  def validate(cls, validator_context):
    """ Validates the config for BitBucket. """
    config = validator_context.config

    trigger_config = config.get('BITBUCKET_TRIGGER_CONFIG')
    if not trigger_config:
      raise ConfigValidationException('Missing client ID and client secret')

    if not trigger_config.get('CONSUMER_KEY'):
      raise ConfigValidationException('Missing Consumer Key')

    if not trigger_config.get('CONSUMER_SECRET'):
      raise ConfigValidationException('Missing Consumer Secret')

    key = trigger_config['CONSUMER_KEY']
    secret = trigger_config['CONSUMER_SECRET']
    callback_url = '%s/oauth1/bitbucket/callback/trigger/' % (get_app_url(validator_context.scheme_and_hostname))

    bitbucket_client = BitBucket(key, secret, callback_url)
    (result, _, _) = bitbucket_client.get_authorization_url()
    if not result:
      raise ConfigValidationException('Invalid consumer key or secret')