# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Recipe to take a jiri diff of two jiri project revisions.
"""

import json

from recipe_engine.recipe_api import Property

DEPS = [
    'fuchsia/jiri',
    'recipe_engine/context',
    'recipe_engine/path',
    'recipe_engine/properties',
    'recipe_engine/step',
]

PROPERTIES = {
    'revision_1':
        Property(
            kind=str,
            help='Revision 1 as commit SHA1.',
        ),
    'revision_2':
        Property(
            kind=str,
            help='Revision 2 as commit SHA1.',
        ),
    'project':
        Property(
            kind=str,
            help='Jiri project to use.',
        ),
    'manifest':
        Property(
            kind=str,
            help='Jiri manifest to use.',
        ),
    'remote':
        Property(
            kind=str,
            help='Remote manifest repository SSO.',
        ),
    'max_cls':
        Property(
            kind=int,
            default=1000,
            help='Max number of CLs to display per project.',
        )
}


def RunSteps(api, revision_1, revision_2, project, manifest, remote, max_cls):
  snapshot_file_1 = api.path.mkstemp()
  snapshot_file_2 = api.path.mkstemp()

  # Checkout at both revisions, taking a snapshot each time.
  with api.context(cwd=api.path.mkdtemp()):
    api.jiri.init()
    for revision, snapshot_file in (
        (revision_1, snapshot_file_1),
        (revision_2, snapshot_file_2),
    ):
      api.jiri.import_manifest(
          manifest=manifest,
          remote=remote,
          name=project,
          revision=revision,
          overwrite=True,
      )
      api.jiri.update(
          fetch_packages=False,
          run_hooks=False,
      )
      api.jiri.snapshot(snapshot_file=snapshot_file)

    diff = api.jiri.diff(
        snapshot_file_1=snapshot_file_1,
        snapshot_file_2=snapshot_file_2,
        max_cls=max_cls,
    )
    # Display diff on build UI.
    diff_logs = api.step.active_result.presentation.logs
    diff_logs['diff'] = diff.split('\n')


def GenTests(api):
  yield (api.test('basic') + api.properties(
      revision_1='foo',
      revision_2='bar',
      project='project',
      manifest='test/manifest/path',
      remote='sso://fuchsia/project',
  ))