#!/usr/bin/env python
"""
Script to encode/decode the IDs that galaxy exposes to users and admins.
"""
import argparse
import logging
import os
import sys

sys.path.insert(1, os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir, 'lib')))

from galaxy.util.script import app_properties_from_args, populate_config_args
from galaxy.web.security import SecurityHelper

logging.basicConfig()
log = logging.getLogger(__name__)

parser = argparse.ArgumentParser()
parser.add_argument('action', metavar='ACTION', type=str,
                    default=None,
                    help='decode|encode')
parser.add_argument('value', metavar='VALUE', type=str,
                    default=None,
                    help='value to encode or decode')
populate_config_args(parser)
args = parser.parse_args()

app_properties = app_properties_from_args(args)
helper = SecurityHelper(id_secret=app_properties.get('id_secret'))

# We need the ID secret for configuring the security helper to decrypt
# galaxysession cookies.
if "id_secret" not in app_properties:
    log.warning('No ID_SECRET specified. Please set the "id_secret" in your galaxy.yml.')

id_secret = app_properties.get('id_secret', 'dangerous_default')

security_helper = SecurityHelper(id_secret=id_secret)
# And get access to the models
# Login manager to manage current_user functionality

if args.action == 'decode':
    sys.stdout.write(security_helper.decode_guid(args.value.lstrip('F')))
elif args.action == 'encode':
    sys.stdout.write(security_helper.encode_guid(args.value).decode('utf-8'))
else:
    sys.stdout.write("Unknown argument")
sys.stdout.write('\n')