#-----------------------------------------------------------------------------
# Copyright (c) 2012 - 2018, Anaconda, Inc. and Intake contributors
# All rights reserved.
#
# The full license is in the LICENSE file, distributed with this software.
#-----------------------------------------------------------------------------
'''

'''
from __future__ import print_function

import logging
log = logging.getLogger(__name__)

#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------

# Standard library imports
from os.path import dirname, exists, join
import os, shutil

# External imports

# Intake imports
from intake.cli.util import Subcommand

#-----------------------------------------------------------------------------
# API
#-----------------------------------------------------------------------------

class Example(Subcommand):
    ''' Create example catalog

    '''

    name = "example"

    def initialize(self):
        pass

    def invoke(self, args):
        print('Creating example catalog...')
        files = ['us_states.yml', 'states_1.csv', 'states_2.csv']
        for filename in files:
            if exists(filename):
                print('Cannot create example catalog in current directory.\n'
                    '%s already exists.' % filename)
                return 1

        src_dir = join(dirname(__file__), '..', '..', 'sample')

        for filename in files:
            src_name = join(src_dir, filename)
            dest_name = filename
            dest_dir = dirname(filename)
            print('  Writing %s' % filename)
            if dest_dir != '' and not exists(dest_dir):
                os.mkdir(dest_dir)
            shutil.copyfile(src_name, dest_name)

        print('''\nTo load the catalog:
    >>> import intake
    >>> cat = intake.open_catalog('%s')
    ''' % files[0])
