#!/usr/bin/env python
# coding: utf-8
#
# This file is part of Supysonic.
# Supysonic is a Python implementation of the Subsonic server API.
#
# Copyright (C) 2017-2018 Alban 'spl0k' Féron
#
# Distributed under terms of the GNU AGPLv3 license.

import io
import os
import shutil
import tempfile
import unittest

from contextlib import contextmanager
from pony.orm import db_session

try: # Don't use io.StringIO on py2, it only accepts unicode and the CLI spits strs
    from StringIO import StringIO
except ImportError:
    from io import StringIO

from supysonic.db import Folder, User, init_database, release_database
from supysonic.cli import SupysonicCLI

from ..testbase import TestConfig

class CLITestCase(unittest.TestCase):
    """ Really basic tests. Some even don't check anything but are just there for coverage """

    def setUp(self):
        conf = TestConfig(False, False)
        self.__dbfile = tempfile.mkstemp()[1]
        conf.BASE['database_uri'] = 'sqlite:///' + self.__dbfile
        init_database(conf.BASE['database_uri'])

        self.__stdout = StringIO()
        self.__stderr = StringIO()
        self.__cli = SupysonicCLI(conf, stdout = self.__stdout, stderr = self.__stderr)

    def tearDown(self):
        self.__stdout.close()
        self.__stderr.close()
        release_database()
        os.unlink(self.__dbfile)

    @contextmanager
    def _tempdir(self):
        d = tempfile.mkdtemp()
        try:
            yield d
        finally:
            shutil.rmtree(d)

    def test_folder_add(self):
        with self._tempdir() as d:
            self.__cli.onecmd('folder add tmpfolder ' + d)

        with db_session:
            f = Folder.select().first()
            self.assertIsNotNone(f)
            self.assertEqual(f.path, d)

    def test_folder_add_errors(self):
        with self._tempdir() as d:
            self.__cli.onecmd('folder add f1 ' + d)
            self.__cli.onecmd('folder add f2 ' + d)
        with self._tempdir() as d:
            self.__cli.onecmd('folder add f1 ' + d)
        self.__cli.onecmd('folder add f3 /invalid/path')

        with db_session:
            self.assertEqual(Folder.select().count(), 1)

    def test_folder_delete(self):
        with self._tempdir() as d:
            self.__cli.onecmd('folder add tmpfolder ' + d)
        self.__cli.onecmd('folder delete randomfolder')
        self.__cli.onecmd('folder delete tmpfolder')

        with db_session:
            self.assertEqual(Folder.select().count(), 0)

    def test_folder_list(self):
        with self._tempdir() as d:
            self.__cli.onecmd('folder add tmpfolder ' + d)
            self.__cli.onecmd('folder list')
            self.assertIn('tmpfolder', self.__stdout.getvalue())
            self.assertIn(d, self.__stdout.getvalue())

    def test_folder_scan(self):
        with self._tempdir() as d:
            self.__cli.onecmd('folder add tmpfolder ' + d)
            with tempfile.NamedTemporaryFile(dir = d):
                self.__cli.onecmd('folder scan')
                self.__cli.onecmd('folder scan tmpfolder nonexistent')

    def test_user_add(self):
        self.__cli.onecmd('user add -p Alic3 alice')
        self.__cli.onecmd('user add -p alice alice')

        with db_session:
            self.assertEqual(User.select().count(), 1)

    def test_user_delete(self):
        self.__cli.onecmd('user add -p Alic3 alice')
        self.__cli.onecmd('user delete alice')
        self.__cli.onecmd('user delete bob')

        with db_session:
            self.assertEqual(User.select().count(), 0)

    def test_user_list(self):
        self.__cli.onecmd('user add -p Alic3 alice')
        self.__cli.onecmd('user list')
        self.assertIn('alice', self.__stdout.getvalue())

    def test_user_setadmin(self):
        self.__cli.onecmd('user add -p Alic3 alice')
        self.__cli.onecmd('user setadmin alice')
        self.__cli.onecmd('user setadmin bob')
        with db_session:
            self.assertTrue(User.get(name = 'alice').admin)

    def test_user_changepass(self):
        self.__cli.onecmd('user add -p Alic3 alice')
        self.__cli.onecmd('user changepass alice newpass')
        self.__cli.onecmd('user changepass bob B0b')

    def test_other(self):
        self.assertTrue(self.__cli.do_EOF(''))
        self.__cli.onecmd('unknown command')
        self.__cli.postloop()
        self.__cli.completedefault('user', 'user', 4, 4)

if __name__ == "__main__":
    unittest.main()