// 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.

#include "apps/shell_window.h"
#include "apps/shell_window_registry.h"
#include "base/bind.h"
#include "chrome/browser/apps/app_browsertest_util.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/extensions/api/feedback_private/feedback_private_api.h"
#include "chrome/browser/extensions/component_loader.h"
#include "chrome/browser/extensions/extension_browsertest.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/common/extensions/api/feedback_private.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "content/public/common/content_switches.h"
#include "extensions/browser/event_router.h"

using apps::ShellWindow;
using apps::ShellWindowRegistry;
using extensions::Extension;

namespace {

void StopMessageLoopCallback() {
  base::MessageLoopForUI::current()->Quit();
}

}  // namespace

namespace extensions {

class FeedbackTest : public ExtensionBrowserTest {
 public:
  virtual void SetUp() OVERRIDE {
    extensions::ComponentLoader::EnableBackgroundExtensionsForTesting();
    InProcessBrowserTest::SetUp();
  }

  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
    command_line->AppendSwitch(::switches::kEnableUserMediaScreenCapturing);
    InProcessBrowserTest::SetUpCommandLine(command_line);
  }

 protected:
  bool IsFeedbackAppAvailable() {
    return extensions::ExtensionSystem::Get(
        browser()->profile())->event_router()->ExtensionHasEventListener(
            kFeedbackExtensionId,
            extensions::api::feedback_private::OnFeedbackRequested::kEventName);
  }

  void StartFeedbackUI() {
    base::Closure callback = base::Bind(&StopMessageLoopCallback);
    extensions::FeedbackPrivateGetStringsFunction::set_test_callback(&callback);
    InvokeFeedbackUI();
    content::RunMessageLoop();
    extensions::FeedbackPrivateGetStringsFunction::set_test_callback(NULL);
  }

  void VerifyFeedbackAppLaunch() {
    ShellWindow* window =
        PlatformAppBrowserTest::GetFirstShellWindowForBrowser(browser());
    ASSERT_TRUE(window);
    const Extension* feedback_app = window->extension();
    ASSERT_TRUE(feedback_app);
    EXPECT_EQ(feedback_app->id(), std::string(kFeedbackExtensionId));
  }

 private:
  void InvokeFeedbackUI() {
    extensions::FeedbackPrivateAPI* api =
        extensions::FeedbackPrivateAPI::GetFactoryInstance()->GetForProfile(
            browser()->profile());
    api->RequestFeedback("Test description",
                         "Test tag",
                         GURL("http://www.test.com"));
  }
};

IN_PROC_BROWSER_TEST_F(FeedbackTest, ShowFeedback) {
  WaitForExtensionViewsToLoad();

  ASSERT_TRUE(IsFeedbackAppAvailable());
  StartFeedbackUI();
  VerifyFeedbackAppLaunch();
}

}  // namespace extensions