# Copyright 2013 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.

"""Runs a Google Maps performance test.
Rerforms several common navigation actions on the map (pan, zoom, rotate)"""

import os
import re

from telemetry import benchmark
from telemetry.core import util
from telemetry.page import page as page_module
from telemetry.page import page_set as page_set_module
from telemetry.page import page_test
from telemetry.value import scalar


class _MapsMeasurement(page_test.PageTest):
  def ValidateAndMeasurePage(self, page, tab, results):
    js_get_results = 'document.getElementsByTagName("pre")[0].innerText'
    test_results = tab.EvaluateJavaScript(js_get_results)

    total = re.search('total=([0-9]+)', test_results).group(1)
    render = re.search('render=([0-9.]+),([0-9.]+)', test_results).group(2)
    results.AddValue(scalar.ScalarValue(
        results.current_page, 'total_time', 'ms', total))
    results.AddValue(scalar.ScalarValue(
        results.current_page, 'render_mean_time', 'ms', render))

class MapsPage(page_module.Page):
  def __init__(self, page_set, base_dir):
    super(MapsPage, self).__init__(
      url='http://localhost:10020/tracker.html',
      page_set=page_set,
      base_dir=base_dir)

  def RunNavigateSteps(self, action_runner):
    action_runner.NavigateToPage(self)
    action_runner.WaitForJavaScriptCondition('window.testDone')


@benchmark.Disabled
class MapsBenchmark(benchmark.Benchmark):
  """Basic Google Maps benchmarks."""
  test = _MapsMeasurement

  def CreatePageSet(self, options):
    page_set_path = os.path.join(
        util.GetChromiumSrcDir(), 'tools', 'perf', 'page_sets')
    ps = page_set_module.PageSet(
      archive_data_file='data/maps.json',
      make_javascript_deterministic=False,
      file_path=page_set_path)
    ps.AddPage(MapsPage(ps, ps.base_dir))
    return ps

class MapsNoVsync(MapsBenchmark):
  """Runs the Google Maps benchmark with Vsync disabled"""
  tag = 'novsync'

  def CustomizeBrowserOptions(self, options):
    options.AppendExtraBrowserArgs('--disable-gpu-vsync')