# 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/.
"""
Add notifications via taskcluster-notify for release tasks
"""

from __future__ import absolute_import, print_function, unicode_literals

from taskgraph.transforms.base import TransformSequence
from taskgraph.util.scriptworker import get_release_config, RELEASE_NOTIFICATION_PHASES


transforms = TransformSequence()

EMAIL_DESTINATIONS = {
    'mozilla-beta': ["release-automation-notifications@mozilla.com"],
    'mozilla-release': ["release-automation-notifications@mozilla.com"],
    'mozilla-esr60': ["release-automation-notifications@mozilla.com"],
    'maple': ["release+tcstaging@mozilla.com"],
    'jamun': ["release+tcstaging@mozilla.com"],
    # otherwise []
}

# Only notify on tasks that have issues
DEFAULT_ROUTES = [
    'notify.email.{email_dest}.on-failed',
    'notify.email.{email_dest}.on-exception',
]

SUBJECT_TEMPLATE = "${{status.state}}: [{shipping_product} {release_config[version]} " + \
                   "build{release_config[build_number]}/{config[params][project]}] {label}"


@transforms.add
def add_notifications(config, jobs):
    release_config = get_release_config(config)
    email_dest = EMAIL_DESTINATIONS.get(config.params['project'], [])

    for job in jobs:
        # Frankly, my dear, you're all over the place
        shipping_phase = job.get('attributes', {}).get('shipping_phase') or \
            job.get('shipping-phase')
        shipping_product = job.get('attributes', {}).get('shipping_product') or \
            job.get('shipping-product')
        label = job.get('label') or '{}-{}'.format(config.kind, job['name'])

        # We only modify release jobs, or nightly & release being run in the context of a release
        if shipping_phase in RELEASE_NOTIFICATION_PHASES and \
                config.params['target_tasks_method'].startswith(RELEASE_NOTIFICATION_PHASES):

            format_kwargs = dict(
                label=label,
                shipping_product=shipping_product,
                config=config.__dict__,
                release_config=release_config,
            )

            # Add routes to trigger notifications via tc-notify
            for dest in email_dest:
                job.setdefault('routes', []).extend(
                    [r.format(email_dest=dest) for r in DEFAULT_ROUTES]
                )

            # Customize the email subject to include release name and build number
            job.setdefault('extra', {}).update(
                {
                   'notify': {
                       'email': {
                            'subject': SUBJECT_TEMPLATE.format(**format_kwargs)
                        }
                    }
                }
            )

        yield job