# Copyright 2018 The Chromium 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 functools

from recipe_engine import post_process

DEPS = [
    'gn',
    'recipe_engine/path',
    'recipe_engine/properties',
    'recipe_engine/raw_io',
]

_DEFAULT_ARGS = (
    'goma_dir = "/b/build/slave/cache/goma_client"\n'
    'target_cpu = "x86"\n'
    'use_goma = true\n')

def _test_args(api, args=None):
  args = args or _DEFAULT_ARGS
  return (api.properties(expected_args=args)
          + api.step_data('read GN args', api.raw_io.output_text(args)))

def RunSteps(api):
  args = api.gn.get_args(
      api.path['checkout'].join('out', 'Release'),
      location=api.properties.get('location'),
      max_text_lines=api.properties.get('max_text_lines'))
  assert args == api.properties.get('expected_args'), \
      'expected:\n%s\nactual:%s' % (api.properties.get('expected_args'), args)

def GenTests(api):
  yield (
      api.test('basic')
      + _test_args(api)
      + api.post_process(post_process.StepTextContains, 'read GN args', [
          ('target_cpu = "x86"<br/>'
           'use_goma = true<br/>'),
          'goma_dir = "/b/build/slave/cache/goma_client"'])
      + api.post_process(post_process.DropExpectation)
  )

  yield (
      api.test('present_to_logs')
      + _test_args(api)
      + api.properties(location=api.gn.LOGS)
      + api.post_process(post_process.LogContains, 'read GN args', 'gn_args', [
          ('target_cpu = "x86"\n'
           'use_goma = true\n'),
          'goma_dir = "/b/build/slave/cache/goma_client"\n'])
      + api.post_process(post_process.DropExpectation)
  )

  args = '\n'.join('arg%02d = "value%d"' % (i, i) for i in xrange(10))
  yield (
      api.test('many_args')
      + _test_args(api, args)
      + api.properties(max_text_lines=5)
      + api.post_process(post_process.LogContains, 'read GN args', 'gn_args',
                         [args])
      + api.post_process(post_process.StepTextContains, 'read GN args',
                         ['exceeds limit', 'presented in logs instead'])
      + api.post_process(post_process.DropExpectation)
  )

  args = '\n'.join('arg%02d = "value%d"' % (i, i) for i in xrange(10))
  yield (
      api.test('present_to_text')
      + _test_args(api, args)
      + api.properties(location=api.gn.TEXT, max_text_lines=5)
      + api.post_process(post_process.StepTextContains, 'read GN args',
                         [args.replace('\n', '<br/>')])
      + api.post_process(post_process.DropExpectation)
  )

  yield (
      api.test('args_with_imports')
      + _test_args(api, (
          'import("//build/args/headless.gn")\n'
          'goma_dir = "/b/build/slave/cache/goma_client"\n'
          'target_cpu = "x86"\n'
          'use_goma = true\n'))
      + api.post_process(post_process.StepTextContains, 'read GN args', [
          ('import("//build/args/headless.gn")<br/>'
           'target_cpu = "x86"<br/>'
           'use_goma = true<br/>'),
          'goma_dir = "/b/build/slave/cache/goma_client"'])
      + api.post_process(post_process.DropExpectation)
  )