# -*- coding: utf-8 -*-
# Copyright 2019 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Artifacts service tests."""

from __future__ import print_function

import os
import shutil

from chromite.lib import build_target_util
from chromite.lib import chroot_lib
from chromite.lib import constants
from chromite.lib import cros_build_lib
from chromite.lib import cros_test_lib
from chromite.lib import osutils
from chromite.lib import sysroot_lib
from chromite.service import artifacts


class ArchiveChromeEbuildEnvTest(cros_test_lib.MockTempDirTestCase):
  """ArchiveChromeEbuildEnv tests."""

  def setUp(self):
    # Create the chroot and sysroot instances.
    self.chroot_path = os.path.join(self.tempdir, 'chroot_dir')
    self.chroot = chroot_lib.Chroot(path=self.chroot_path)
    self.sysroot_path = os.path.join(self.chroot_path, 'sysroot_dir')
    self.sysroot = sysroot_lib.Sysroot(self.sysroot_path)

    # Create the output directory.
    self.output_dir = os.path.join(self.tempdir, 'output_dir')
    osutils.SafeMakedirs(self.output_dir)

    # The sysroot's /var/db/pkg prefix for the chrome package directories.
    var_db_pkg = os.path.join(self.sysroot_path, 'var', 'db', 'pkg')
    # Create the var/db/pkg dir so we have that much for no-chrome tests.
    osutils.SafeMakedirs(var_db_pkg)

    # Two versions of chrome to test the multiple version checks/handling.
    chrome_v1 = '%s-1.0.0-r1' % constants.CHROME_PN
    chrome_v2 = '%s-2.0.0-r1' % constants.CHROME_PN

    # Build the two chrome version paths.
    chrome_cat_dir = os.path.join(var_db_pkg, constants.CHROME_CN)
    self.chrome_v1_dir = os.path.join(chrome_cat_dir, chrome_v1)
    self.chrome_v2_dir = os.path.join(chrome_cat_dir, chrome_v2)

    # Directory tuple for verifying the result archive contents.
    self.expected_archive_contents = cros_test_lib.Directory('./',
                                                             'environment')

    # Create a environment.bz2 file to put into folders.
    env_file = os.path.join(self.tempdir, 'environment')
    osutils.Touch(env_file)
    cros_build_lib.RunCommand(['bzip2', env_file])
    self.env_bz2 = '%s.bz2' % env_file

  def _CreateChromeDir(self, path, populate=True):
    """Setup a chrome package directory.

    Args:
      path (str): The full chrome package path.
      populate (bool): Whether to include the environment bz2.
    """
    osutils.SafeMakedirs(path)
    if populate:
      shutil.copy(self.env_bz2, path)

  def testSingleChromeVersion(self):
    """Test a successful single-version run."""
    self._CreateChromeDir(self.chrome_v1_dir)

    created = artifacts.ArchiveChromeEbuildEnv(self.sysroot, self.output_dir)

    self.assertStartsWith(created, self.output_dir)
    cros_test_lib.VerifyTarball(created, self.expected_archive_contents)

  def testMultipleChromeVersions(self):
    """Test a successful multiple version run."""
    # Create both directories, but don't populate the v1 dir so it'll hit an
    # error if the wrong one is used.
    self._CreateChromeDir(self.chrome_v1_dir, populate=False)
    self._CreateChromeDir(self.chrome_v2_dir)

    created = artifacts.ArchiveChromeEbuildEnv(self.sysroot, self.output_dir)

    self.assertStartsWith(created, self.output_dir)
    cros_test_lib.VerifyTarball(created, self.expected_archive_contents)

  def testNoChrome(self):
    """Test no version of chrome present."""
    with self.assertRaises(artifacts.NoFilesException):
      artifacts.ArchiveChromeEbuildEnv(self.sysroot, self.output_dir)


class CreateChromeRootTest(cros_test_lib.RunCommandTempDirTestCase):
  """CreateChromeRoot tests."""

  def setUp(self):
    # Create the build target.
    self.build_target = build_target_util.BuildTarget('board')

    # Create the chroot.
    self.chroot_dir = os.path.join(self.tempdir, 'chroot')
    self.chroot_tmp = os.path.join(self.chroot_dir, 'tmp')
    osutils.SafeMakedirs(self.chroot_tmp)
    self.chroot = chroot_lib.Chroot(path=self.chroot_dir)

    # Create the output directory.
    self.output_dir = os.path.join(self.tempdir, 'output_dir')
    osutils.SafeMakedirs(self.output_dir)

  def testRunCommandError(self):
    """Test handling when the run command call is not successful."""
    result = cros_build_lib.CommandResult()
    self.rc.SetDefaultCmdResult(
        side_effect=cros_build_lib.RunCommandError('Error', result))

    with self.assertRaises(artifacts.CrosGenerateSysrootError):
      artifacts.CreateChromeRoot(self.chroot, self.build_target,
                                 self.output_dir)

  def testSuccess(self):
    """Test success case."""
    # Separate tempdir for the method itself.
    call_tempdir = os.path.join(self.chroot_tmp, 'cgs_call_tempdir')
    osutils.SafeMakedirs(call_tempdir)
    self.PatchObject(osutils.TempDir, '__enter__', return_value=call_tempdir)

    # Set up files in the tempdir since the command isn't being called to
    # generate anything for it to handle.
    files = ['file1', 'file2', 'file3']
    expected_files = [os.path.join(self.output_dir, f) for f in files]
    for f in files:
      osutils.Touch(os.path.join(call_tempdir, f))

    created = artifacts.CreateChromeRoot(self.chroot, self.build_target,
                                         self.output_dir)

    # Just test the command itself and the parameter-based args.
    self.assertCommandContains(['cros_generate_sysroot',
                                '--board', self.build_target.name])
    # Make sure we
    self.assertItemsEqual(expected_files, created)
    for f in created:
      self.assertExists(f)