"""Test NotebookApp"""

#-----------------------------------------------------------------------------
#  Copyright (C) 2013 The IPython Development Team
#
#  Distributed under the terms of the BSD License.  The full license is in
#  the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------

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

import logging
import os
from tempfile import NamedTemporaryFile

import nose.tools as nt

from IPython.utils.tempdir import TemporaryDirectory
from IPython.utils.traitlets import TraitError
import IPython.testing.tools as tt
from IPython.html import notebookapp
NotebookApp = notebookapp.NotebookApp

#-----------------------------------------------------------------------------
# Test functions
#-----------------------------------------------------------------------------

def test_help_output():
    """ipython notebook --help-all works"""
    tt.help_all_output_test('notebook')

def test_server_info_file():
    nbapp = NotebookApp(profile='nbserver_file_test', log=logging.getLogger())
    def get_servers():
        return list(notebookapp.list_running_servers(profile='nbserver_file_test'))
    nbapp.initialize(argv=[])
    nbapp.write_server_info_file()
    servers = get_servers()
    nt.assert_equal(len(servers), 1)
    nt.assert_equal(servers[0]['port'], nbapp.port)
    nt.assert_equal(servers[0]['url'], nbapp.connection_url)
    nbapp.remove_server_info_file()
    nt.assert_equal(get_servers(), [])

    # The ENOENT error should be silenced.
    nbapp.remove_server_info_file()

def test_nb_dir():
    with TemporaryDirectory() as td:
        app = NotebookApp(notebook_dir=td)
        nt.assert_equal(app.notebook_dir, td)

def test_no_create_nb_dir():
    with TemporaryDirectory() as td:
        nbdir = os.path.join(td, 'notebooks')
        app = NotebookApp()
        with nt.assert_raises(TraitError):
            app.notebook_dir = nbdir

def test_missing_nb_dir():
    with TemporaryDirectory() as td:
        nbdir = os.path.join(td, 'notebook', 'dir', 'is', 'missing')
        app = NotebookApp()
        with nt.assert_raises(TraitError):
            app.notebook_dir = nbdir

def test_invalid_nb_dir():
    with NamedTemporaryFile() as tf:
        app = NotebookApp()
        with nt.assert_raises(TraitError):
            app.notebook_dir = tf