// 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 "apps/shell/app/shell_main_delegate.h"
#include "apps/shell/browser/shell_browser_main_delegate.h"
#include "apps/shell/browser/shell_desktop_controller.h"
#include "apps/shell/browser/shell_extension_system.h"
#include "apps/shell/renderer/shell_renderer_main_delegate.h"
#include "athena/content/public/content_activity_factory.h"
#include "athena/content/public/content_app_model_builder.h"
#include "athena/home/public/home_card.h"
#include "athena/main/athena_app_window_controller.h"
#include "athena/main/athena_launcher.h"
#include "athena/main/placeholder.h"
#include "athena/main/url_search_provider.h"
#include "athena/virtual_keyboard/public/virtual_keyboard_bindings.h"
#include "athena/virtual_keyboard/public/virtual_keyboard_manager.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "content/public/app/content_main.h"
#include "ui/aura/window_tree_host.h"
#include "ui/wm/core/visibility_controller.h"

namespace {
const char kAppSwitch[] = "app";

// We want to load the sample calculator app by default, for a while. Expecting
// to run athena_main at src/
const char kDefaultAppPath[] =
    "chrome/common/extensions/docs/examples/apps/calculator/app";
}  // namespace

class AthenaBrowserMainDelegate : public apps::ShellBrowserMainDelegate {
 public:
  AthenaBrowserMainDelegate() {}
  virtual ~AthenaBrowserMainDelegate() {}

  // apps::ShellBrowserMainDelegate:
  virtual void Start(content::BrowserContext* context) OVERRIDE {
    base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
    base::FilePath app_dir = base::FilePath::FromUTF8Unsafe(
        command_line->HasSwitch(kAppSwitch) ?
        command_line->GetSwitchValueNative(kAppSwitch) :
        kDefaultAppPath);

    base::FilePath app_absolute_dir = base::MakeAbsoluteFilePath(app_dir);
    if (base::DirectoryExists(app_absolute_dir)) {
      extensions::ShellExtensionSystem* extension_system =
          static_cast<extensions::ShellExtensionSystem*>(
              extensions::ExtensionSystem::Get(context));
      extension_system->LoadApp(app_absolute_dir);
    }

    athena::StartAthena(
        apps::ShellDesktopController::instance()->host()->window(),
        new athena::ContentActivityFactory(),
        new athena::ContentAppModelBuilder(context));
    athena::HomeCard::Get()->RegisterSearchProvider(
        new athena::UrlSearchProvider(context));
    athena::VirtualKeyboardManager::Create(context);

    CreateTestPages(context);
  }

  virtual void Shutdown() OVERRIDE { athena::ShutdownAthena(); }

  virtual apps::ShellDesktopController* CreateDesktopController() OVERRIDE {
    // TODO(mukai): create Athena's own ShellDesktopController subclass so that
    // it can initialize its own window manager logic.
    apps::ShellDesktopController* desktop = new apps::ShellDesktopController();
    desktop->SetAppWindowController(new athena::AthenaAppWindowController());
    return desktop;
  }

 private:
  DISALLOW_COPY_AND_ASSIGN(AthenaBrowserMainDelegate);
};

class AthenaRendererMainDelegate : public apps::ShellRendererMainDelegate {
 public:
  AthenaRendererMainDelegate() {}
  virtual ~AthenaRendererMainDelegate() {}

 private:
  // apps::ShellRendererMainDelegate:
  virtual void OnThreadStarted(content::RenderThread* thread) OVERRIDE {}

  virtual void OnViewCreated(content::RenderView* render_view) OVERRIDE {
    athena::VirtualKeyboardBindings::Create(render_view);
  }

  DISALLOW_COPY_AND_ASSIGN(AthenaRendererMainDelegate);
};

class AthenaMainDelegate : public apps::ShellMainDelegate {
 public:
  AthenaMainDelegate() {}
  virtual ~AthenaMainDelegate() {}

 private:
  // apps::ShellMainDelegate:
  virtual apps::ShellBrowserMainDelegate* CreateShellBrowserMainDelegate()
      OVERRIDE {
    return new AthenaBrowserMainDelegate();
  }

  virtual scoped_ptr<apps::ShellRendererMainDelegate>
  CreateShellRendererMainDelegate() OVERRIDE {
    return scoped_ptr<apps::ShellRendererMainDelegate>(
        new AthenaRendererMainDelegate());
  }

  DISALLOW_COPY_AND_ASSIGN(AthenaMainDelegate);
};

int main(int argc, const char** argv) {
  AthenaMainDelegate delegate;
  content::ContentMainParams params(&delegate);

  params.argc = argc;
  params.argv = argv;

  return content::ContentMain(params);
}