#!/usr/bin/python
# Copyright (c) 2012 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.

import copy
import mox
import os
import multiprocessing
import sys
import tempfile

sys.path.insert(0, os.path.join(os.path.dirname(os.path.realpath(__file__)),
                                '..', '..'))
from chromite.scripts import upload_prebuilts as prebuilt
from chromite.lib import cros_test_lib
from chromite.lib import gs
from chromite.lib import binpkg
from chromite.lib import osutils

# pylint: disable=E1120,W0212,R0904
PUBLIC_PACKAGES = [{'CPV': 'gtk+/public1', 'SHA1': '1', 'MTIME': '1'},
                   {'CPV': 'gtk+/public2', 'SHA1': '2',
                    'PATH': 'gtk+/foo.tgz', 'MTIME': '2'}]
PRIVATE_PACKAGES = [{'CPV': 'private', 'SHA1': '3', 'MTIME': '3'}]


def SimplePackageIndex(header=True, packages=True):
  pkgindex = binpkg.PackageIndex()
  if header:
    pkgindex.header['URI'] = 'gs://example'
  if packages:
    pkgindex.packages = copy.deepcopy(PUBLIC_PACKAGES + PRIVATE_PACKAGES)
  return pkgindex


class TestUpdateFile(cros_test_lib.TempDirTestCase):

  def setUp(self):
    self.contents_str = ['# comment that should be skipped',
                         'PKGDIR="/var/lib/portage/pkgs"',
                         'PORTAGE_BINHOST="http://no.thanks.com"',
                         'portage portage-20100310.tar.bz2',
                         'COMPILE_FLAGS="some_value=some_other"',
                         ]
    self.version_file = os.path.join(self.tempdir, 'version')
    osutils.WriteFile(self.version_file, '\n'.join(self.contents_str))

  def _read_version_file(self, version_file=None):
    """Read the contents of self.version_file and return as a list."""
    if not version_file:
      version_file = self.version_file

    version_fh = open(version_file)
    try:
      return [line.strip() for line in version_fh.readlines()]
    finally:
      version_fh.close()

  def _verify_key_pair(self, key, val):
    file_contents = self._read_version_file()
    # ensure key for verify is wrapped on quotes
    if '"' not in val:
      val = '"%s"' % val
    for entry in file_contents:
      if '=' not in entry:
        continue
      file_key, file_val = entry.split('=')
      if file_key == key:
        if val == file_val:
          break
    else:
      self.fail('Could not find "%s=%s" in version file' % (key, val))

  def testAddVariableThatDoesNotExist(self):
    """Add in a new variable that was no present in the file."""
    key = 'PORTAGE_BINHOST'
    value = '1234567'
    prebuilt.UpdateLocalFile(self.version_file, value)
    print self.version_file
    self._read_version_file()
    self._verify_key_pair(key, value)
    print self.version_file

  def testUpdateVariable(self):
    """Test updating a variable that already exists."""
    key, val = self.contents_str[2].split('=')
    new_val = 'test_update'
    self._verify_key_pair(key, val)
    prebuilt.UpdateLocalFile(self.version_file, new_val)
    self._verify_key_pair(key, new_val)

  def testUpdateNonExistentFile(self):
    key = 'PORTAGE_BINHOST'
    value = '1234567'
    non_existent_file = tempfile.mktemp()
    try:
      prebuilt.UpdateLocalFile(non_existent_file, value)
      file_contents = self._read_version_file(non_existent_file)
      self.assertEqual(file_contents, ['%s="%s"' % (key, value)])
    finally:
      if os.path.exists(non_existent_file):
        os.remove(non_existent_file)


class TestPrebuilt(cros_test_lib.MoxTestCase):

  def testGenerateUploadDict(self):
    base_local_path = '/b/cbuild/build/chroot/build/x86-dogfood/'
    gs_bucket_path = 'gs://chromeos-prebuilt/host/version'
    local_path = os.path.join(base_local_path, 'public1.tbz2')
    self.mox.StubOutWithMock(prebuilt.os.path, 'exists')
    prebuilt.os.path.exists(local_path).AndReturn(True)
    self.mox.ReplayAll()
    pkgs = [{ 'CPV': 'public1' }]
    result = prebuilt.GenerateUploadDict(base_local_path, gs_bucket_path, pkgs)
    expected = { local_path: gs_bucket_path + '/public1.tbz2' }
    self.assertEqual(result, expected)

  def testDeterminePrebuiltConfHost(self):
    """Test that the host prebuilt path comes back properly."""
    expected_path = os.path.join(prebuilt._PREBUILT_MAKE_CONF['amd64'])
    self.assertEqual(prebuilt.DeterminePrebuiltConfFile('fake_path', 'amd64'),
                     expected_path)


class TestPkgIndex(cros_test_lib.TestCase):

  def setUp(self):
    self.db = {}
    self.pkgindex = SimplePackageIndex()
    self.empty = SimplePackageIndex(packages=False)

  def assertURIs(self, uris):
    """Verify that the duplicate DB has the specified URLs."""
    expected = [v.uri for _, v in sorted(self.db.items())]
    self.assertEqual(expected, uris)


class TestPackagesFileFiltering(TestPkgIndex):

  def testFilterPkgIndex(self):
    """Test filtering out of private packages."""
    self.pkgindex.RemoveFilteredPackages(lambda pkg: pkg in PRIVATE_PACKAGES)
    self.assertEqual(self.pkgindex.packages, PUBLIC_PACKAGES)
    self.assertEqual(self.pkgindex.modified, True)


class TestPopulateDuplicateDB(TestPkgIndex):

  def testEmptyIndex(self):
    """Test population of the duplicate DB with an empty index."""
    self.empty._PopulateDuplicateDB(self.db, 0)
    self.assertEqual(self.db, {})

  def testNormalIndex(self):
    """Test population of the duplicate DB with a full index."""
    self.pkgindex._PopulateDuplicateDB(self.db, 0)
    self.assertURIs(['gs://example/gtk+/public1.tbz2',
                     'gs://example/gtk+/foo.tgz',
                     'gs://example/private.tbz2'])

  def testMissingSHA1(self):
    """Test population of the duplicate DB with a missing SHA1."""
    del self.pkgindex.packages[0]['SHA1']
    self.pkgindex._PopulateDuplicateDB(self.db, 0)
    self.assertURIs(['gs://example/gtk+/foo.tgz',
                     'gs://example/private.tbz2'])

  def testFailedPopulate(self):
    """Test failure conditions for the populate method."""
    headerless = SimplePackageIndex(header=False)
    self.assertRaises(KeyError, headerless._PopulateDuplicateDB, self.db, 0)
    del self.pkgindex.packages[0]['CPV']
    self.assertRaises(KeyError, self.pkgindex._PopulateDuplicateDB, self.db, 0)


class TestResolveDuplicateUploads(cros_test_lib.MoxTestCase, TestPkgIndex):

  def setUp(self):
    self.mox.StubOutWithMock(binpkg.time, 'time')
    binpkg.time.time().AndReturn(binpkg.TWO_WEEKS)
    self.mox.ReplayAll()
    self.db = {}
    self.dup = SimplePackageIndex()
    self.expected_pkgindex = SimplePackageIndex()

  def assertNoDuplicates(self, candidates):
    """Verify no duplicates are found with the specified candidates."""
    uploads = self.pkgindex.ResolveDuplicateUploads(candidates)
    self.assertEqual(uploads, self.pkgindex.packages)
    self.assertEqual(len(self.pkgindex.packages),
                     len(self.expected_pkgindex.packages))
    for pkg1, pkg2 in zip(self.pkgindex.packages,
                          self.expected_pkgindex.packages):
      self.assertNotEqual(pkg1['MTIME'], pkg2['MTIME'])
      del pkg1['MTIME']
      del pkg2['MTIME']
    self.assertEqual(self.pkgindex.modified, False)
    self.assertEqual(self.pkgindex.packages, self.expected_pkgindex.packages)

  def assertAllDuplicates(self, candidates):
    """Verify every package is a duplicate in the specified list."""
    for pkg in self.expected_pkgindex.packages:
      pkg.setdefault('PATH', pkg['CPV'] + '.tbz2')
    self.pkgindex.ResolveDuplicateUploads(candidates)
    self.assertEqual(self.pkgindex.packages, self.expected_pkgindex.packages)

  def testEmptyList(self):
    """If no candidates are supplied, no duplicates should be found."""
    self.assertNoDuplicates([])

  def testEmptyIndex(self):
    """If no packages are supplied, no duplicates should be found."""
    self.assertNoDuplicates([self.empty])

  def testDifferentURI(self):
    """If the URI differs, no duplicates should be found."""
    self.dup.header['URI'] = 'gs://example2'
    self.assertNoDuplicates([self.dup])

  def testUpdateModificationTime(self):
    """When duplicates are found, we should use the latest mtime."""
    for pkg in self.expected_pkgindex.packages:
      pkg['MTIME'] = '10'
    for pkg in self.dup.packages:
      pkg['MTIME'] = '4'
    self.assertAllDuplicates([self.expected_pkgindex, self.dup])

  def testCanonicalUrl(self):
    """If the URL is in a different format, we should still find duplicates."""
    self.dup.header['URI'] = gs.PUBLIC_BASE_HTTPS_URL + 'example'
    self.assertAllDuplicates([self.dup])

  def testMissingSHA1(self):
    """We should not find duplicates if there is no SHA1."""
    del self.pkgindex.packages[0]['SHA1']
    del self.expected_pkgindex.packages[0]['SHA1']
    for pkg in self.expected_pkgindex.packages[1:]:
      pkg.setdefault('PATH', pkg['CPV'] + '.tbz2')
    self.pkgindex.ResolveDuplicateUploads([self.dup])
    self.assertNotEqual(self.pkgindex.packages[0]['MTIME'],
                        self.expected_pkgindex.packages[0]['MTIME'])
    del self.pkgindex.packages[0]['MTIME']
    del self.expected_pkgindex.packages[0]['MTIME']
    self.assertEqual(self.pkgindex.packages, self.expected_pkgindex.packages)


class TestWritePackageIndex(cros_test_lib.MoxTestCase, TestPkgIndex):

  def testSimple(self):
    """Test simple call of WriteToNamedTemporaryFile()"""
    self.mox.StubOutWithMock(self.pkgindex, 'Write')
    self.pkgindex.Write(mox.IgnoreArg())
    self.mox.ReplayAll()
    f = self.pkgindex.WriteToNamedTemporaryFile()
    self.assertEqual(f.read(), '')


class TestUploadPrebuilt(cros_test_lib.MoxTestCase):

  def setUp(self):
    class MockTemporaryFile(object):
      def __init__(self, name):
        self.name = name
    self.pkgindex = SimplePackageIndex()
    self.mox.StubOutWithMock(binpkg, 'GrabLocalPackageIndex')
    binpkg.GrabLocalPackageIndex('/packages').AndReturn(self.pkgindex)
    self.mox.StubOutWithMock(prebuilt, 'RemoteUpload')
    self.mox.StubOutWithMock(self.pkgindex, 'ResolveDuplicateUploads')
    self.pkgindex.ResolveDuplicateUploads([]).AndReturn(PRIVATE_PACKAGES)
    self.mox.StubOutWithMock(self.pkgindex, 'WriteToNamedTemporaryFile')
    fake_pkgs_file = MockTemporaryFile('fake')
    self.pkgindex.WriteToNamedTemporaryFile().AndReturn(fake_pkgs_file)

  def testSuccessfulGsUpload(self):
    uploads = {'/packages/private.tbz2': 'gs://foo/private.tbz2'}
    self.mox.StubOutWithMock(prebuilt, 'GenerateUploadDict')
    prebuilt.GenerateUploadDict('/packages', 'gs://foo/suffix',
        PRIVATE_PACKAGES).AndReturn(uploads)
    uploads = uploads.copy()
    uploads['fake'] = 'gs://foo/suffix/Packages'
    acl = 'public-read'
    prebuilt.RemoteUpload(acl, uploads)
    self.mox.ReplayAll()
    uri = self.pkgindex.header['URI']
    uploader = prebuilt.PrebuiltUploader('gs://foo', acl, uri, [], '/', [],
                                         False, 'foo', False, 'x86-foo', [])
    uploader._UploadPrebuilt('/packages', 'suffix')


class TestSyncPrebuilts(cros_test_lib.MoxTestCase):

  def setUp(self):
    self.mox.StubOutWithMock(prebuilt, 'DeterminePrebuiltConfFile')
    self.mox.StubOutWithMock(prebuilt, 'RevGitFile')
    self.mox.StubOutWithMock(prebuilt, 'UpdateBinhostConfFile')
    self.build_path = '/trunk'
    self.upload_location = 'gs://upload/'
    self.version = '1'
    self.binhost = 'http://prebuilt/'
    self.key = 'PORTAGE_BINHOST'
    self.mox.StubOutWithMock(prebuilt.PrebuiltUploader, '_UploadPrebuilt')

  def testSyncHostPrebuilts(self):
    board = 'x86-foo'
    target = prebuilt.BuildTarget(board, 'aura')
    slave_targets = [prebuilt.BuildTarget('x86-bar', 'aura')]
    package_path = os.path.join(self.build_path,
                                prebuilt._HOST_PACKAGES_PATH)
    url_suffix = prebuilt._REL_HOST_PATH % {'version': self.version,
        'host_arch': prebuilt._HOST_ARCH, 'target': target}
    packages_url_suffix = '%s/packages' % url_suffix.rstrip('/')
    prebuilt.PrebuiltUploader._UploadPrebuilt(package_path,
        packages_url_suffix).AndReturn(True)
    url_value = '%s/%s/' % (self.binhost.rstrip('/'),
                            packages_url_suffix.rstrip('/'))
    urls = [url_value.replace('foo', 'bar'), url_value]
    binhost = ' '.join(urls)
    prebuilt.RevGitFile(mox.IgnoreArg(), binhost, key=self.key, dryrun=False)
    prebuilt.UpdateBinhostConfFile(mox.IgnoreArg(), self.key, binhost)
    self.mox.ReplayAll()
    uploader = prebuilt.PrebuiltUploader(
        self.upload_location, 'public-read', self.binhost, [],
        self.build_path, [], False, 'foo', False, target, slave_targets)
    uploader.SyncHostPrebuilts(self.version, self.key, True, True)

  def testSyncBoardPrebuilts(self):
    board = 'x86-foo'
    target = prebuilt.BuildTarget(board, 'aura')
    slave_targets = [prebuilt.BuildTarget('x86-bar', 'aura')]
    board_path = os.path.join(self.build_path,
        prebuilt._BOARD_PATH % {'board': board})
    package_path = os.path.join(board_path, 'packages')
    url_suffix = prebuilt._REL_BOARD_PATH % {'version': self.version,
        'target': target}
    packages_url_suffix = '%s/packages' % url_suffix.rstrip('/')
    self.mox.StubOutWithMock(multiprocessing.Process, '__init__')
    self.mox.StubOutWithMock(multiprocessing.Process, 'exitcode')
    self.mox.StubOutWithMock(multiprocessing.Process, 'start')
    self.mox.StubOutWithMock(multiprocessing.Process, 'join')
    multiprocessing.Process.__init__(target=mox.IgnoreArg(),
        args=(board_path, url_suffix, self.version, None))
    multiprocessing.Process.start()
    prebuilt.PrebuiltUploader._UploadPrebuilt(package_path,
        packages_url_suffix).AndReturn(True)
    multiprocessing.Process.join()
    multiprocessing.Process.exitcode = 0
    url_value = '%s/%s/' % (self.binhost.rstrip('/'),
                            packages_url_suffix.rstrip('/'))
    bar_binhost = url_value.replace('foo', 'bar')
    prebuilt.DeterminePrebuiltConfFile(self.build_path,
        slave_targets[0]).AndReturn('bar')
    prebuilt.RevGitFile('bar', bar_binhost, key=self.key, dryrun=False)
    prebuilt.UpdateBinhostConfFile(mox.IgnoreArg(), self.key, bar_binhost)
    prebuilt.DeterminePrebuiltConfFile(self.build_path, target).AndReturn('foo')
    prebuilt.RevGitFile('foo', url_value, key=self.key, dryrun=False)
    prebuilt.UpdateBinhostConfFile(mox.IgnoreArg(), self.key, url_value)
    self.mox.ReplayAll()
    uploader = prebuilt.PrebuiltUploader(
        self.upload_location, 'public-read', self.binhost, [],
        self.build_path, [], False, 'foo', False, target, slave_targets)
    uploader.SyncBoardPrebuilts(self.version, self.key, True, True, True, None)


class TestMain(cros_test_lib.MoxTestCase):

  def testMain(self):
    """Test that the main function works."""
    options = mox.MockObject(object)
    old_binhost = 'http://prebuilt/1'
    options.previous_binhost_url = [old_binhost]
    options.board = 'x86-foo'
    options.profile = None
    target = prebuilt.BuildTarget(options.board, options.profile)
    options.build_path = '/trunk'
    options.debug = False
    options.private = True
    options.packages = []
    options.sync_host = True
    options.git_sync = True
    options.upload_board_tarball = True
    options.prepackaged_tarball = None
    options.upload = 'gs://upload/'
    options.binhost_base_url = options.upload
    options.prepend_version = True
    options.set_version = None
    options.skip_upload = False
    options.filters = True
    options.key = 'PORTAGE_BINHOST'
    options.binhost_conf_dir = 'foo'
    options.sync_binhost_conf = True
    options.slave_targets = [prebuilt.BuildTarget('x86-bar', 'aura')]
    self.mox.StubOutWithMock(prebuilt, 'ParseOptions')
    prebuilt.ParseOptions().AndReturn(tuple([options, target]))
    self.mox.StubOutWithMock(binpkg, 'GrabRemotePackageIndex')
    binpkg.GrabRemotePackageIndex(old_binhost).AndReturn(True)
    self.mox.StubOutWithMock(prebuilt.PrebuiltUploader, '__init__')
    self.mox.StubOutWithMock(prebuilt, 'GetBoardOverlay')
    fake_overlay_path = '/fake_path'
    prebuilt.GetBoardOverlay(
        options.build_path, options.board).AndReturn(fake_overlay_path)
    expected_gs_acl_path = os.path.join(fake_overlay_path,
                                        prebuilt._GOOGLESTORAGE_ACL_FILE)
    prebuilt.PrebuiltUploader.__init__(options.upload, expected_gs_acl_path,
                                       options.upload, mox.IgnoreArg(),
                                       options.build_path, options.packages,
                                       False, options.binhost_conf_dir, False,
                                       target, options.slave_targets)
    self.mox.StubOutWithMock(prebuilt.PrebuiltUploader, 'SyncHostPrebuilts')
    prebuilt.PrebuiltUploader.SyncHostPrebuilts(mox.IgnoreArg(), options.key,
        options.git_sync, options.sync_binhost_conf)
    self.mox.StubOutWithMock(prebuilt.PrebuiltUploader, 'SyncBoardPrebuilts')
    prebuilt.PrebuiltUploader.SyncBoardPrebuilts(
        mox.IgnoreArg(), options.key, options.git_sync,
        options.sync_binhost_conf, options.upload_board_tarball, None)
    self.mox.ReplayAll()
    prebuilt.main([])

if __name__ == '__main__':
  cros_test_lib.main()