# Copyright 2015  Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=


import os
import shutil
import tempfile
import unittest

import icklib


class TargetTests(unittest.TestCase):

    def setUp(self):
        self.tempdir = tempfile.mkdtemp()
        self.run_ssh = os.environ.get(
            'ICK_UNIT_TEST_SSH_LOCALHOST_OK', False)

    def tearDown(self):
        shutil.rmtree(self.tempdir)

    def test_sets_name(self):
        t = icklib.Target('foo')
        self.assertEqual(t.name, 'foo')

    def test_syncs_to_target(self):
        if self.run_ssh:
            src = os.path.join(self.tempdir, 'src')
            os.mkdir(src)
            with open(os.path.join(src, 'source.py'), 'w') as f:
                f.write('this is source')

            t = icklib.Target('foo')
            t.set_address('localhost')
            t.sync_to_target(src, self.tempdir, 'dst')

            pathname = os.path.join(self.tempdir, 'dst', 'source.py')
            self.assertTrue(os.path.exists(pathname))

    def test_syncs_from_target(self):
        if self.run_ssh:
            src = os.path.join(self.tempdir, 'src')
            os.mkdir(src)
            with open(os.path.join(src, 'source.py'), 'w') as f:
                f.write('this is source')

            dst = os.path.join(self.tempdir, 'dst')
            os.mkdir(dst)

            t = icklib.Target('foo')
            t.set_address('localhost')
            t.sync_from_target(src, dst)

            pathname = os.path.join(dst, 'source.py')
            self.assertTrue(os.path.exists(pathname))

    def test_runs_command_on_target(self):
        if self.run_ssh:
            t = icklib.Target('foo')
            t.set_address('localhost')
            output = t.ssh_runcmd(['pwd'], remote_cwd=self.tempdir)
            self.assertEqual(output.rstrip('\n'), self.tempdir)

    def test_creates_and_removes_temporary_directory(self):
        if self.run_ssh:
            t = icklib.Target('foo')
            t.set_address('localhost')
            dirname = t.mkdtemp()
            self.assertTrue(os.path.isdir(dirname))
            self.assertEqual(os.listdir(dirname), [])
            t.remove_all([dirname])
            self.assertFalse(os.path.isdir(dirname))


class CreateTargetsFromIcTests(unittest.TestCase):

    def test_creates_specified_target(self):
        ick = {
            'targets': {
                'foo': {
                    'address': 'foo-address',
                    'pbuilder-ci-tgz': 'ci.tgz',
                }
            },
        }

        targets = icklib.create_targets_from_ick(ick, [])
        self.assertEqual(len(targets), 1)
        self.assertEqual(targets[0].name, 'foo')
        self.assertEqual(targets[0].address, 'foo-address')
        self.assertEqual(targets[0].pbuilder_ci_tgz, 'ci.tgz')