import logging

from functools import wraps

from cnr.exception import UnauthorizedAccess
from flask import Blueprint

from app import metric_queue
from auth.permissions import (AdministerRepositoryPermission, ReadRepositoryPermission,
                              ModifyRepositoryPermission)
from endpoints.appr.decorators import require_repo_permission
from util.metrics.metricqueue import time_blueprint


appr_bp = Blueprint('appr', __name__)
time_blueprint(appr_bp, metric_queue)
logger = logging.getLogger(__name__)


def _raise_method(repository, scopes):
  raise UnauthorizedAccess("Unauthorized access for: %s" % repository,
                           {"package": repository, "scopes": scopes})


def _get_reponame_kwargs(*args, **kwargs):
  return [kwargs['namespace'], kwargs['package_name']]


require_app_repo_read = require_repo_permission(ReadRepositoryPermission,
                                                scopes=['pull'],
                                                allow_public=True,
                                                raise_method=_raise_method,
                                                get_reponame_method=_get_reponame_kwargs)

require_app_repo_write = require_repo_permission(ModifyRepositoryPermission,
                                                 scopes=['pull', 'push'],
                                                 raise_method=_raise_method,
                                                 get_reponame_method=_get_reponame_kwargs)

require_app_repo_admin = require_repo_permission(AdministerRepositoryPermission,
                                                 scopes=['pull', 'push'],
                                                 raise_method=_raise_method,
                                                 get_reponame_method=_get_reponame_kwargs)