# Copyright 2016 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.

from recipe_engine import recipe_api


class JiriApi(recipe_api.RecipeApi):
    """JiriApi provides support for Jiri managed checkouts."""

    def __init__(self, *args, **kwargs):
        super(JiriApi, self).__init__(*args, **kwargs)
        self._jiri_executable = None

    def __call__(self, *args, **kwargs):
        """Return a jiri command step."""
        assert self._jiri_executable
        name = kwargs.pop('name', 'jiri ' + args[0])
        jiri_cmd = [self._jiri_executable]
        return self.m.step(name, jiri_cmd + list(args), **kwargs)

    def ensure_jiri(self, version=None):
        with self.m.step.nest('ensure_jiri'):
            with self.m.step.context({'infra_step': True}):
                jiri_package = ('fuchsia/tools/jiri/%s' %
                    self.m.cipd.platform_suffix())
                cipd_dir = self.m.path['start_dir'].join('cipd', 'jiri')

                self.m.cipd.ensure(cipd_dir,
                                   {jiri_package: version or 'latest'})
                self._jiri_executable = cipd_dir.join('jiri')

                return self._jiri_executable

    @property
    def jiri(self):
        return self._jiri_executable

    def init(self, dir=None, **kwargs):
        cmd = [ 'init', '-cache', self.m.path['cache'].join('git') ]
        if dir:
            cmd.append(dir)

        return self(*cmd, **kwargs)

    def describe(self, *projects, **kwargs):
        cmd = [
            'project', 'info', '-json-output', self.m.json.output(),
        ] + list(projects)
        kwargs.setdefault('name', 'jiri project info')

        return self(
            *cmd,
            step_test_data=lambda: self.test_api.example_describe(projects),
            **kwargs
        )

    def update(self, gc=False, snapshot=None, **kwargs):
        cmd = [ 'update', '-autoupdate=false' ]
        if gc:
            cmd.extend(['-gc=true'])
        if snapshot is not None:
            cmd.append(snapshot)

        return self(*cmd, **kwargs)

    def clean_project(self, branches=False, **kwargs):
        cmd = [ 'project', 'clean' ]
        if branches:
            cmd.extend(['-branches=true'])
        kwargs.setdefault('name', 'jiri project clean')

        return self(*cmd, **kwargs)

    def import_manifest(self, manifest, remote, overwrite=False, **kwargs):
        cmd = [ 'import' ]
        if overwrite:
            cmd.extend(['-overwrite=true'])
        cmd.extend([manifest, remote])

        return self(*cmd, **kwargs)

    def patch(self, ref, host=None, delete=False, force=False, **kwargs):
        cmd = [ 'patch' ]
        if host:
            cmd.extend(['-host', host])
        if delete:
            cmd.extend(['-delete=true'])
        if force:
            cmd.extend(['-force=true'])
        cmd.extend([ref])

        return self(*cmd, **kwargs)

    def snapshot(self, file, step_test_data=None, **kwargs):
        return self(
            'snapshot', file,
            step_test_data=step_test_data or self.test_api.example_snapshot,
            **kwargs
        )