# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
"""
Find upstream artifact task.
"""

from __future__ import absolute_import, print_function, unicode_literals

from taskgraph.transforms.base import TransformSequence


transforms = TransformSequence()


@transforms.add
def find_upstream_artifact_task(config, jobs):
    for job in jobs:
        dep_job = None
        if job.get('dependent-tasks'):
            dep_labels = [l for l in job['dependent-tasks'].keys()]
            for label in dep_labels:
                if 'notarization-part-1' in label:
                    assert dep_job is None, "Can't determine whether " \
                        "{} or {} is dep_job!".format(dep_job.label, label)
                    dep_job = job['dependent-tasks'][label]
            if dep_job is not None:
                job['upstream-artifact-task'] = dep_job
        yield job