# Copyright 2019 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
"""Test API for cq_deps."""

from recipe_engine import post_process, recipe_test_api


class CqDepsTestApi(recipe_test_api.RecipeTestApi):
    def properties(self, **kwargs):
        return {'$pigweed/cq_deps': kwargs}

    def lookup_cl(self, commit_hash, number=None, prefix='', found=True):
        if not found:
            return self.override_step_data(
                '{}resolve CL deps.number {}'.format(prefix, commit_hash),
                self.m.json.output(None),
            )

        return self.override_step_data(
            '{}resolve CL deps.number {}'.format(prefix, commit_hash),
            self.m.json.output([{'_number': number}] if number else []),
        )

    def _step_name(self, prefix, name, n):
        return '{}resolve CL deps.details {}{}'.format(
            prefix, name, ' ({})'.format(n) if n and n > 1 else '',
        )

    def details(
        self,
        name,
        message='',
        status='NEW',
        project='project',
        patchset=1,
        prefix='',
        commit_hash='HASH',
        parent=None,
        n=None,
    ):
        number = int(name.split(':')[1])

        if not parent:
            parent = 'parent-{}'.format(number)

        assert status in ('NEW', 'MERGED', 'ABANDONED')

        return self.override_step_data(
            self._step_name(prefix, name, n),
            self.m.json.output(
                {
                    '_number': number,
                    'current_revision': commit_hash,
                    'project': project,
                    'revisions': {
                        commit_hash: {
                            '_number': patchset,
                            'commit': {
                                'message': message,
                                'parents': [{'commit': parent,}],
                            },
                        }
                    },
                    'status': status,
                }
            ),
        )

    def transient(self, name, prefix='', n=None):
        return self.override_step_data(
            self._step_name(prefix, name, n),
            self.m.json.output({'transient': True}),
            retcode=1,
        )

    def forbidden(self, name, prefix='', attempts=2):
        data = []
        for i in range(0, attempts):
            data.append(
                self.override_step_data(
                    self._step_name(prefix, name, i + 1),
                    self.m.json.output({}),
                    retcode=1,
                )
            )
        return sum(data[1:], data[0])

    def has_deps(self, *names):
        results = []
        for name in names:
            results.append(
                self.post_process(
                    post_process.MustRun, 'final deps.{}'.format(name),
                )
            )

        return sum(results[1:], results[0])

    def lacks_deps(self, *names):
        results = []
        for name in names:
            results.append(
                self.post_process(
                    post_process.DoesNotRun, 'final deps.{}'.format(name),
                )
            )

        return sum(results[1:], results[0])

    def assert_disabled(self, prefix=''):
        return self.post_process(
            post_process.MustRun,
            '{}resolve CL deps.dependency processing disabled'.format(prefix),
        )