// Copyright 2014 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.

#include "chromecast/browser/cast_browser_main_parts.h"

#include "base/command_line.h"
#include "base/message_loop/message_loop.h"
#include "base/prefs/pref_registry_simple.h"
#include "chromecast/base/metrics/cast_metrics_helper.h"
#include "chromecast/browser/cast_browser_context.h"
#include "chromecast/browser/cast_browser_process.h"
#include "chromecast/browser/devtools/remote_debugging_server.h"
#include "chromecast/browser/metrics/cast_metrics_prefs.h"
#include "chromecast/browser/metrics/cast_metrics_service_client.h"
#include "chromecast/browser/service/cast_service.h"
#include "chromecast/browser/url_request_context_factory.h"
#include "chromecast/browser/webui/webui_cast.h"
#include "chromecast/common/chromecast_config.h"
#include "chromecast/net/network_change_notifier_cast.h"
#include "chromecast/net/network_change_notifier_factory_cast.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/common/content_switches.h"
#include "media/base/media_switches.h"

#if defined(OS_ANDROID)
#include "chromecast/crash/android/crash_handler.h"
#include "components/crash/browser/crash_dump_manager_android.h"
#include "net/android/network_change_notifier_factory_android.h"
#endif  // defined(OS_ANDROID)

namespace chromecast {
namespace shell {

namespace {

struct DefaultCommandLineSwitch {
  const char* const switch_name;
  const char* const switch_value;
};

DefaultCommandLineSwitch g_default_switches[] = {
#if defined(OS_ANDROID)
  { switches::kMediaDrmEnableNonCompositing, ""},
  { switches::kEnableOverlayFullscreenVideo, ""},
  { switches::kDisableInfobarForProtectedMediaIdentifier, ""},
  { switches::kDisableGestureRequirementForMediaPlayback, ""},
  { switches::kForceUseOverlayEmbeddedVideo, ""},
#endif
  { switches::kDisableApplicationCache, "" },
  { switches::kDisablePlugins, "" },
  // Always enable HTMLMediaElement logs.
  { switches::kBlinkPlatformLogChannels, "Media"},
  { NULL, NULL },  // Termination
};

void AddDefaultCommandLineSwitches(CommandLine* command_line) {
  int i = 0;
  while (g_default_switches[i].switch_name != NULL) {
    command_line->AppendSwitchASCII(
        std::string(g_default_switches[i].switch_name),
        std::string(g_default_switches[i].switch_value));
    ++i;
  }
}

}  // namespace

CastBrowserMainParts::CastBrowserMainParts(
    const content::MainFunctionParams& parameters,
    URLRequestContextFactory* url_request_context_factory)
    : BrowserMainParts(),
      cast_browser_process_(new CastBrowserProcess()),
      parameters_(parameters),
      url_request_context_factory_(url_request_context_factory) {
  CommandLine* command_line = CommandLine::ForCurrentProcess();
  AddDefaultCommandLineSwitches(command_line);
}

CastBrowserMainParts::~CastBrowserMainParts() {
}

void CastBrowserMainParts::PreMainMessageLoopStart() {
#if defined(OS_ANDROID)
  net::NetworkChangeNotifier::SetFactory(
      new net::NetworkChangeNotifierFactoryAndroid());
#else
  net::NetworkChangeNotifier::SetFactory(
      new NetworkChangeNotifierFactoryCast());
#endif  // defined(OS_ANDROID)
}

void CastBrowserMainParts::PostMainMessageLoopStart() {
  cast_browser_process_->SetMetricsHelper(
      new metrics::CastMetricsHelper(base::MessageLoopProxy::current()));

#if defined(OS_ANDROID)
  base::MessageLoopForUI::current()->Start();
#endif  // defined(OS_ANDROID)
}

int CastBrowserMainParts::PreCreateThreads() {
  PrefRegistrySimple* pref_registry = new PrefRegistrySimple();
  metrics::RegisterPrefs(pref_registry);
  ChromecastConfig::Create(pref_registry);
  return 0;
}

void CastBrowserMainParts::PreMainMessageLoopRun() {
  url_request_context_factory_->InitializeOnUIThread();

  cast_browser_process_->SetBrowserContext(
      new CastBrowserContext(url_request_context_factory_));
  cast_browser_process_->SetMetricsServiceClient(
      metrics::CastMetricsServiceClient::Create(
          content::BrowserThread::GetBlockingPool(),
          ChromecastConfig::GetInstance()->pref_service(),
          cast_browser_process_->browser_context()->GetRequestContext()));

#if defined(OS_ANDROID)
  base::FilePath crash_dumps_dir;
  if (!chromecast::CrashHandler::GetCrashDumpLocation(&crash_dumps_dir)) {
    LOG(ERROR) << "Could not find crash dump location.";
  }
  cast_browser_process_->SetCrashDumpManager(
      new breakpad::CrashDumpManager(crash_dumps_dir));
#endif

  cast_browser_process_->SetRemoteDebuggingServer(new RemoteDebuggingServer());

  InitializeWebUI();

  cast_browser_process_->SetCastService(CastService::Create(
      cast_browser_process_->browser_context(),
      url_request_context_factory_->GetSystemGetter(),
      base::Bind(
          &metrics::CastMetricsServiceClient::EnableMetricsService,
          base::Unretained(cast_browser_process_->metrics_service_client()))));

  // Initializing network delegates must happen after Cast service is created.
  url_request_context_factory_->InitializeNetworkDelegates();
  cast_browser_process_->cast_service()->Start();
}

bool CastBrowserMainParts::MainMessageLoopRun(int* result_code) {
  // If parameters_.ui_task is not NULL, we are running browser tests. In this
  // case, the browser's main message loop will not run.
  if (parameters_.ui_task) {
    parameters_.ui_task->Run();
  } else {
    base::MessageLoopForUI::current()->Run();
  }
  return true;
}

void CastBrowserMainParts::PostMainMessageLoopRun() {
  cast_browser_process_->cast_service()->Stop();
  cast_browser_process_.reset();
}

}  // namespace shell
}  // namespace chromecast