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# Copyright (C) 2017-2018  Lars Wirzenius
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


import os
import shutil
import tempfile
import unittest


import yaml


import ick2


class ProjectAPITests(unittest.TestCase):

    def setUp(self):
        self.tempdir = tempfile.mkdtemp()
        self.statedir = os.path.join(self.tempdir, 'state/dir')
        self.state = ick2.ControllerState()
        self.state.set_state_directory(self.statedir)

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

    def create_api(self):
        return ick2.ProjectAPI(self.state)

    def create_pipeline_api(self):
        return ick2.PipelineAPI(self.state)

    def test_has_not_projects_initially(self):
        api = self.create_api()
        self.assertEqual(api.list(), {'projects': []})

    def test_creates_project(self):
        project = {
            'project': 'foo',
            'pipelines': ['build'],
            'parameters': {
                'foo': 'bar',
            },
        }
        api = self.create_api()
        new = api.create(project)
        project['next_build_id'] = None
        self.assertEqual(new, project)
        self.assertEqual(api.list(), {'projects': [new]})
        dirname = os.path.join(self.statedir, 'projects')
        filename = os.listdir(dirname)[0]
        obj = yaml.safe_load(open(os.path.join(dirname, filename)))
        self.assertEqual(api.get_status('foo'), {'status': 'idle'})

    def test_raises_error_when_getting_missing_project_status(self):
        api = self.create_api()
        with self.assertRaises(ick2.NotFound):
            api.get_status('does-not-exist')

    def test_loads_projects_from_state_directory(self):
        project = {
            'project': 'foo',
            'pipelines': ['build'],
            'next_build_id': None,
        }
        api = self.create_api()
        api.create(project)

        api2 = self.create_api()
        self.assertEqual(api2.list(), {'projects': [project]})

    def test_gets_named_project(self):
        project = {
            'project': 'foo',
            'pipelines': ['build'],
            'next_build_id': None,
        }
        api = self.create_api()
        api.create(project)
        self.assertEqual(api.show('foo'), project)

    def test_updates_named_project(self):
        project_v1 = {
            'project': 'foo',
            'pipelines': ['build'],
            'next_build_id': None,
        }
        project_v2 = dict(project_v1)
        project_v2['shell_steps'] = ['build it using magic']
        api = self.create_api()
        api.create(project_v1)
        updated = api.update(project_v2, 'foo')
        self.assertEqual(updated, project_v2)
        self.assertEqual(api.show('foo'), project_v2)

    def test_deletes_named_project(self):
        project = {
            'project': 'foo',
            'pipelines': ['build'],
        }
        api = self.create_api()
        api.create(project)
        api.delete('foo')
        self.assertEqual(api.list(), {'projects': []})
        with self.assertRaises(ick2.NotFound):
            api.show('foo')

    def test_raises_error_deleting_missing_project(self):
        api = self.create_api()
        with self.assertRaises(ick2.NotFound):
            api.delete('foo')

    def test_updates_project_status(self):
        project = {
            'project': 'foo',
        }
        api = self.create_api()
        api.create(project)
        self.assertEqual(api.get_status('foo'), {'status': 'idle'})

        with self.assertRaises(ick2.WrongProjectStatus):
            api.set_status('foo', 'build')

        api.set_status('foo', 'triggered')
        self.assertEqual(api.get_status('foo'), {'status': 'triggered'})

        with self.assertRaises(ick2.WrongProjectStatus):
            api.set_status('foo', 'idle')

        api.set_status('foo', 'building')
        self.assertEqual(api.get_status('foo'), {'status': 'building'})

        with self.assertRaises(ick2.WrongProjectStatus):
            api.set_status('foo', 'triggered')

        api.set_status('foo', 'idle')
        self.assertEqual(api.get_status('foo'), {'status': 'idle'})

    def test_raises_error_updating_status_of_missing_pipeline(self):
        api = self.create_api()
        with self.assertRaises(ick2.NotFound):
            api.set_status('does-not-exist', 'triggered')