// Copyright (c) 2012 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 "chrome/test/chromedriver/chrome/chrome_impl.h"

#include "chrome/test/chromedriver/chrome/devtools_client.h"
#include "chrome/test/chromedriver/chrome/devtools_event_listener.h"
#include "chrome/test/chromedriver/chrome/devtools_http_client.h"
#include "chrome/test/chromedriver/chrome/status.h"
#include "chrome/test/chromedriver/chrome/version.h"
#include "chrome/test/chromedriver/chrome/web_view_impl.h"
#include "chrome/test/chromedriver/net/port_server.h"

ChromeImpl::~ChromeImpl() {
  if (!quit_)
    port_reservation_->Leak();
}

ChromeDesktopImpl* ChromeImpl::GetAsDesktop() {
  return NULL;
}

const BrowserInfo* ChromeImpl::GetBrowserInfo() {
  return devtools_http_client_->browser_info();
}

bool ChromeImpl::HasCrashedWebView() {
  for (WebViewList::iterator it = web_views_.begin();
       it != web_views_.end(); ++it) {
    if ((*it)->WasCrashed())
      return true;
  }
  return false;
}

Status ChromeImpl::GetWebViewIds(std::list<std::string>* web_view_ids) {
  WebViewsInfo views_info;
  Status status = devtools_http_client_->GetWebViewsInfo(&views_info);
  if (status.IsError())
    return status;

  // Check if some web views are closed.
  WebViewList::iterator it = web_views_.begin();
  while (it != web_views_.end()) {
    if (!views_info.GetForId((*it)->GetId())) {
      it = web_views_.erase(it);
    } else {
      ++it;
    }
  }

  // Check for newly-opened web views.
  for (size_t i = 0; i < views_info.GetSize(); ++i) {
    const WebViewInfo& view = views_info.Get(i);
    if (view.type != WebViewInfo::kPage && view.type != WebViewInfo::kApp)
      continue;

    // Workaround to ignore generated background pages that are
    // being returned as active windows for some builds of Chrome.
    // TODO(bustamante): Once Chrome builds < 1755 are no longer
    //   supported this check can be removed.
    int kBuildNumber = devtools_http_client_->browser_info()->build_no;
    if (kBuildNumber < 1755 && view.type == WebViewInfo::kApp &&
        view.url.find("_generated_background") != std::string::npos)
      continue;

    bool found = false;
    for (WebViewList::const_iterator web_view_iter = web_views_.begin();
         web_view_iter != web_views_.end(); ++web_view_iter) {
      if ((*web_view_iter)->GetId() == view.id) {
        found = true;
        break;
      }
    }
    if (!found) {
      scoped_ptr<DevToolsClient> client(
          devtools_http_client_->CreateClient(view.id));
      for (ScopedVector<DevToolsEventListener>::const_iterator listener =
               devtools_event_listeners_.begin();
           listener != devtools_event_listeners_.end(); ++listener) {
        client->AddListener(*listener);
        // OnConnected will fire when DevToolsClient connects later.
      }
      web_views_.push_back(make_linked_ptr(new WebViewImpl(
          view.id,
          devtools_http_client_->browser_info(),
          client.Pass(),
          devtools_http_client_->device_metrics())));
    }
  }

  std::list<std::string> web_view_ids_tmp;
  for (WebViewList::const_iterator web_view_iter = web_views_.begin();
       web_view_iter != web_views_.end(); ++web_view_iter) {
    web_view_ids_tmp.push_back((*web_view_iter)->GetId());
  }
  web_view_ids->swap(web_view_ids_tmp);
  return Status(kOk);
}

Status ChromeImpl::GetWebViewById(const std::string& id, WebView** web_view) {
  for (WebViewList::iterator it = web_views_.begin();
       it != web_views_.end(); ++it) {
    if ((*it)->GetId() == id) {
      *web_view = (*it).get();
      return Status(kOk);
    }
  }
  return Status(kUnknownError, "web view not found");
}

Status ChromeImpl::CloseWebView(const std::string& id) {
  Status status = devtools_http_client_->CloseWebView(id);
  if (status.IsError())
    return status;
  for (WebViewList::iterator iter = web_views_.begin();
       iter != web_views_.end(); ++iter) {
    if ((*iter)->GetId() == id) {
      web_views_.erase(iter);
      break;
    }
  }
  return Status(kOk);
}

Status ChromeImpl::ActivateWebView(const std::string& id) {
  return devtools_http_client_->ActivateWebView(id);
}

bool ChromeImpl::IsMobileEmulationEnabled() const {
  return false;
}

Status ChromeImpl::Quit() {
  Status status = QuitImpl();
  if (status.IsOk())
    quit_ = true;
  return status;
}

ChromeImpl::ChromeImpl(
    scoped_ptr<DevToolsHttpClient> client,
    ScopedVector<DevToolsEventListener>& devtools_event_listeners,
    scoped_ptr<PortReservation> port_reservation)
    : quit_(false),
      devtools_http_client_(client.Pass()),
      port_reservation_(port_reservation.Pass()) {
  devtools_event_listeners_.swap(devtools_event_listeners);
}