// Copyright 2016 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef COBALT_DOM_TESTING_STUB_WINDOW_H_
#define COBALT_DOM_TESTING_STUB_WINDOW_H_

#include <memory>
#include <string>
#include <utility>

#include "base/bind.h"
#include "base/callback.h"
#include "base/message_loop/message_loop.h"
#include "base/optional.h"
#include "base/threading/platform_thread.h"
#include "cobalt/base/debugger_hooks.h"
#include "cobalt/css_parser/parser.h"
#include "cobalt/cssom/viewport_size.h"
#include "cobalt/dom/dom_settings.h"
#include "cobalt/dom/local_storage_database.h"
#include "cobalt/dom/testing/stub_environment_settings.h"
#include "cobalt/dom/window.h"
#include "cobalt/dom_parser/parser.h"
#include "cobalt/loader/fetcher_factory.h"
#include "cobalt/loader/loader_factory.h"
#include "cobalt/script/global_environment.h"
#include "cobalt/script/javascript_engine.h"
#include "cobalt/web/context.h"
#include "cobalt/web/environment_settings.h"
#include "cobalt/web/stub_web_context.h"
#include "starboard/window.h"
#include "url/gurl.h"

namespace cobalt {
namespace dom {
namespace testing {
// A helper class for tests that brings up a dom::Window with a number of parts
// stubbed out.
class StubWindow {
 public:
  explicit StubWindow(
      const DOMSettings::Options& options = DOMSettings::Options())
      : message_loop_(base::MessageLoop::TYPE_DEFAULT),
        css_parser_(css_parser::Parser::Create()),
        dom_parser_(
            new dom_parser::Parser(base::Bind(&StubLoadCompleteCallback))),
        local_storage_database_(NULL),
        dom_stat_tracker_(new dom::DomStatTracker("StubWindow")) {
    web_context_.reset(new web::test::StubWebContext());
    web_context_->setup_environment_settings(
        new dom::testing::StubEnvironmentSettings(options));
    web_context_->environment_settings()->set_base_url(GURL("about:blank"));
    web_context_->set_fetcher_factory(new loader::FetcherFactory(NULL));
    loader_factory_.reset(new loader::LoaderFactory(
        "Test", web_context_->fetcher_factory(), NULL,
        web_context_->environment_settings()->debugger_hooks(), 0,
        base::ThreadPriority::DEFAULT)),
        window_ = new dom::Window(
            web_context_->environment_settings(),
            cssom::ViewportSize(1920, 1080), base::kApplicationStateStarted,
            css_parser_.get(), dom_parser_.get(),
            web_context_->fetcher_factory(), loader_factory_.get(), NULL, NULL,
            NULL, NULL, NULL, NULL, &local_storage_database_, NULL, NULL, NULL,
            NULL, global_environment()->script_value_factory(), NULL,
            dom_stat_tracker_.get(),
            web_context_->environment_settings()->base_url(), "", NULL, "en-US",
            "en", base::Callback<void(const GURL&)>(),
            base::Bind(&StubLoadCompleteCallback), NULL,
            network_bridge::PostSender(), csp::kCSPRequired,
            dom::kCspEnforcementEnable,
            base::Closure() /* csp_policy_changed */,
            base::Closure() /* ran_animation_frame_callbacks */,
            dom::Window::CloseCallback() /* window_close */,
            base::Closure() /* window_minimize */, NULL, NULL,
            dom::Window::OnStartDispatchEventCallback(),
            dom::Window::OnStopDispatchEventCallback(),
            dom::ScreenshotManager::ProvideScreenshotFunctionCallback(), NULL);
    base::polymorphic_downcast<dom::DOMSettings*>(
        web_context_->environment_settings())
        ->set_window(window_);
    global_environment()->CreateGlobalObject(
        window_, web_context_->environment_settings());
  }
  virtual ~StubWindow() { window_->DestroyTimers(); }

  scoped_refptr<dom::Window> window() { return window_; }
  scoped_refptr<script::GlobalEnvironment> global_environment() {
    return web_context_->global_environment();
  }
  css_parser::Parser* css_parser() { return css_parser_.get(); }
  script::EnvironmentSettings* environment_settings() {
    return web_context_->environment_settings();
  }

 private:
  static void StubLoadCompleteCallback(
      const base::Optional<std::string>& error) {}

  base::MessageLoop message_loop_;
  base::NullDebuggerHooks null_debugger_hooks_;
  std::unique_ptr<css_parser::Parser> css_parser_;
  std::unique_ptr<dom_parser::Parser> dom_parser_;
  std::unique_ptr<loader::LoaderFactory> loader_factory_;
  dom::LocalStorageDatabase local_storage_database_;
  std::unique_ptr<dom::DomStatTracker> dom_stat_tracker_;
  std::unique_ptr<web::Context> web_context_;
  scoped_refptr<dom::Window> window_;
};

}  // namespace testing
}  // namespace dom
}  // namespace cobalt

#endif  // COBALT_DOM_TESTING_STUB_WINDOW_H_