// 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 "chrome/browser/ui/webui/chromeos/first_run/first_run_ui.h"

#include "ash/shell.h"
#include "base/command_line.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/chromeos/first_run/first_run_handler.h"
#include "chrome/common/url_constants.h"
#include "chromeos/chromeos_switches.h"
#include "content/public/browser/web_ui.h"
#include "content/public/browser/web_ui_data_source.h"
#include "grit/browser_resources.h"
#include "grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/webui/web_ui_util.h"

namespace {

const char kFirstRunJSPath[] = "first_run.js";
const char kShelfAlignmentBottom[] = "bottom";
const char kShelfAlignmentLeft[] = "left";
const char kShelfAlignmentRight[] = "right";

void SetLocalizedStrings(base::DictionaryValue* localized_strings) {
  localized_strings->SetString(
      "appListHeader",
      l10n_util::GetStringUTF16(IDS_FIRST_RUN_APP_LIST_STEP_HEADER));
  localized_strings->SetString(
      "appListText1",
      l10n_util::GetStringUTF16(IDS_FIRST_RUN_APP_LIST_STEP_TEXT_1));
  localized_strings->SetString(
      "appListText2",
      l10n_util::GetStringUTF16(IDS_FIRST_RUN_APP_LIST_STEP_TEXT_2));
  localized_strings->SetString(
      "trayHeader", l10n_util::GetStringUTF16(IDS_FIRST_RUN_TRAY_STEP_HEADER));
  localized_strings->SetString(
      "trayText", l10n_util::GetStringUTF16(IDS_FIRST_RUN_TRAY_STEP_TEXT));
  localized_strings->SetString(
      "helpHeader", l10n_util::GetStringUTF16(IDS_FIRST_RUN_HELP_STEP_HEADER));
  localized_strings->SetString(
      "helpText1", l10n_util::GetStringUTF16(IDS_FIRST_RUN_HELP_STEP_TEXT_1));
  localized_strings->SetString(
      "helpText2", l10n_util::GetStringUTF16(IDS_FIRST_RUN_HELP_STEP_TEXT_2));
  localized_strings->SetString(
      "helpText3", l10n_util::GetStringUTF16(IDS_FIRST_RUN_HELP_STEP_TEXT_3));
  localized_strings->SetString(
      "helpKeepExploringButton",
      l10n_util::GetStringUTF16(IDS_FIRST_RUN_HELP_STEP_KEEP_EXPLORING_BUTTON));
  localized_strings->SetString(
      "helpFinishButton",
      l10n_util::GetStringUTF16(IDS_FIRST_RUN_HELP_STEP_FINISH_BUTTON));
  localized_strings->SetString(
      "nextButton", l10n_util::GetStringUTF16(IDS_FIRST_RUN_NEXT_BUTTON));
  localized_strings->SetBoolean(
      "transitionsEnabled",
      CommandLine::ForCurrentProcess()->HasSwitch(
          chromeos::switches::kEnableFirstRunUITransitions));
  std::string shelf_alignment;
  ash::Shell* shell = ash::Shell::GetInstance();
  switch (shell->GetShelfAlignment(shell->GetPrimaryRootWindow())) {
    case ash::SHELF_ALIGNMENT_BOTTOM:
      shelf_alignment = kShelfAlignmentBottom;
      break;
    case ash::SHELF_ALIGNMENT_LEFT:
      shelf_alignment = kShelfAlignmentLeft;
      break;
    case ash::SHELF_ALIGNMENT_RIGHT:
      shelf_alignment = kShelfAlignmentRight;
      break;
    default:
      NOTREACHED() << "Unsupported shelf alignment";
  }
  localized_strings->SetString("shelfAlignment", shelf_alignment);
}

content::WebUIDataSource* CreateDataSource() {
  content::WebUIDataSource* source =
      content::WebUIDataSource::Create(chrome::kChromeUIFirstRunHost);
  source->SetUseJsonJSFormatV2();
  source->SetJsonPath("strings.js");
  source->SetDefaultResource(IDR_FIRST_RUN_HTML);
  source->AddResourcePath(kFirstRunJSPath, IDR_FIRST_RUN_JS);
  base::DictionaryValue localized_strings;
  webui::SetFontAndTextDirection(&localized_strings);
  SetLocalizedStrings(&localized_strings);
  source->AddLocalizedStrings(localized_strings);
  return source;
}

}  // anonymous namespace

namespace chromeos {

FirstRunUI::FirstRunUI(content::WebUI* web_ui)
    : WebUIController(web_ui),
      actor_(NULL) {
  FirstRunHandler* handler = new FirstRunHandler();
  actor_ = handler;
  web_ui->AddMessageHandler(handler);
  content::WebUIDataSource::Add(Profile::FromWebUI(web_ui), CreateDataSource());
}

}  // namespace chromeos