import logging

from flask import make_response, jsonify
from flask_restful.utils.cors import crossdomain

from app import app
from data import model
from data.readreplica import ReadOnlyModeException
from util.config.provider.baseprovider import CannotWriteConfigException
from util.useremails import CannotSendEmailException


logger = logging.getLogger(__name__)


@app.errorhandler(model.DataModelException)
def handle_dme(ex):
  logger.exception(ex)
  response = jsonify({'message': str(ex)})
  response.status_code = 400
  return response

@app.errorhandler(CannotSendEmailException)
def handle_emailexception(ex):
  message = 'Could not send email. Please contact an administrator and report this problem.'
  response = jsonify({'message': message})
  response.status_code = 400
  return response

@app.errorhandler(CannotWriteConfigException)
def handle_configexception(ex):
  message = ('Configuration could not be written to the mounted volume. \n' +
             'Please make sure the mounted volume is not read-only and restart ' +
             'the setup process. \n\nIssue: %s' % ex)
  response = jsonify({'message': message})
  response.status_code = 400
  return response

@app.errorhandler(model.TooManyLoginAttemptsException)
@crossdomain(origin='*', headers=['Authorization', 'Content-Type'])
def handle_too_many_login_attempts(error):
  msg = 'Too many login attempts. \nPlease reset your Quay password and try again.'
  response = make_response(msg, 429)
  response.headers['Retry-After'] = int(error.retry_after)
  return response

@app.errorhandler(ReadOnlyModeException)
def handle_readonly(ex):
  logger.exception(ex)
  response = jsonify({'message': 'System is currently read-only. Pulls will succeed but all ' +
                                 'write operations are currently suspended.',
                      'is_readonly': True})
  response.status_code = 503
  return response