# 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/.
"""
Transform the checksums signing task into an actual task description.
"""

from __future__ import absolute_import, print_function, unicode_literals

from taskgraph.transforms.base import TransformSequence
from taskgraph.util.attributes import copy_attributes_from_dependent_job
from taskgraph.util.schema import validate_schema, Schema
from taskgraph.util.scriptworker import (
    get_signing_cert_scope,
    get_worker_type_for_scope,
)
from taskgraph.transforms.task import task_description_schema
from voluptuous import Any, Required, Optional

# Voluptuous uses marker objects as dictionary *keys*, but they are not
# comparable, so we cast all of the keys back to regular strings
task_description_schema = {str(k): v for k, v in task_description_schema.schema.iteritems()}

transforms = TransformSequence()

taskref_or_string = Any(
    basestring,
    {Required('task-reference'): basestring})

checksums_signing_description_schema = Schema({
    Required('dependent-task'): object,
    Required('depname', default='beetmover'): basestring,
    Optional('label'): basestring,
    Optional('treeherder'): task_description_schema['treeherder'],
    Optional('shipping-product'): task_description_schema['shipping-product'],
    Optional('shipping-phase'): task_description_schema['shipping-phase'],
})


@transforms.add
def validate(config, jobs):
    for job in jobs:
        label = job.get('dependent-task', object).__dict__.get('label', '?no-label?')
        validate_schema(
            checksums_signing_description_schema, job,
            "In checksums-signing ({!r} kind) task for {!r}:".format(config.kind, label))
        yield job


@transforms.add
def make_checksums_signing_description(config, jobs):
    for job in jobs:
        dep_job = job['dependent-task']
        attributes = dep_job.attributes

        treeherder = job.get('treeherder', {})
        treeherder.setdefault('symbol', 'cs(N)')
        dep_th_platform = dep_job.task.get('extra', {}).get(
            'treeherder', {}).get('machine', {}).get('platform', '')
        treeherder.setdefault('platform',
                              "{}/opt".format(dep_th_platform))
        treeherder.setdefault('tier', 1)
        treeherder.setdefault('kind', 'build')

        label = job['label']
        description = (
            "Signing of Checksums file for locale '{locale}' for build '"
            "{build_platform}/{build_type}'".format(
                locale=attributes.get('locale', 'en-US'),
                build_platform=attributes.get('build_platform'),
                build_type=attributes.get('build_type')
            )
        )
        dependencies = {"beetmover": dep_job.label}

        attributes = copy_attributes_from_dependent_job(dep_job)

        if dep_job.attributes.get('locale'):
            treeherder['symbol'] = 'cs({})'.format(dep_job.attributes.get('locale'))
            attributes['locale'] = dep_job.attributes.get('locale')

        upstream_artifacts = [{
            "taskId": {"task-reference": "<beetmover>"},
            "taskType": "beetmover",
            "paths": [
                "public/target.checksums",
            ],
            "formats": ["gpg"]
        }]

        signing_cert_scope = get_signing_cert_scope(config)
        task = {
            'label': label,
            'description': description,
            'worker-type': get_worker_type_for_scope(config, signing_cert_scope),
            'worker': {'implementation': 'scriptworker-signing',
                       'upstream-artifacts': upstream_artifacts,
                       'max-run-time': 3600},
            'scopes': [
                signing_cert_scope,
                "project:releng:signing:format:gpg"
            ],
            'dependencies': dependencies,
            'attributes': attributes,
            'run-on-projects': dep_job.attributes.get('run_on_projects'),
            'treeherder': treeherder,
        }

        yield task