// 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 "chrome/browser/google/google_brand.h"

#include <string>


#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/installer/util/google_update_settings.h"

#if defined(OS_MACOSX)
#include "chrome/browser/mac/keystone_glue.h"
#elif defined(OS_CHROMEOS)
#include "chrome/browser/google/google_brand_chromeos.h"
#endif


// Helpers --------------------------------------------------------------------

namespace {

const char* g_brand_for_testing = NULL;

}  // namespace


namespace google_brand {

// Global functions -----------------------------------------------------------

#if defined(OS_WIN)

bool GetBrand(std::string* brand) {
  if (g_brand_for_testing) {
    brand->assign(g_brand_for_testing);
    return true;
  }

  base::string16 brand16;
  bool ret = GoogleUpdateSettings::GetBrand(&brand16);
  if (ret)
    brand->assign(base::UTF16ToASCII(brand16));
  return ret;
}

bool GetReactivationBrand(std::string* brand) {
  base::string16 brand16;
  bool ret = GoogleUpdateSettings::GetReactivationBrand(&brand16);
  if (ret)
    brand->assign(base::UTF16ToASCII(brand16));
  return ret;
}

#else

bool GetBrand(std::string* brand) {
  if (g_brand_for_testing) {
    brand->assign(g_brand_for_testing);
    return true;
  }

#if defined(OS_MACOSX)
  brand->assign(keystone_glue::BrandCode());
#elif defined(OS_CHROMEOS)
  brand->assign(google_brand::chromeos::GetBrand());
#else
  brand->clear();
#endif
  return true;
}

bool GetReactivationBrand(std::string* brand) {
  brand->clear();
  return true;
}

#endif

bool IsOrganic(const std::string& brand) {
#if defined(OS_MACOSX)
  if (brand.empty()) {
    // An empty brand string on Mac is used for channels other than stable,
    // which are always organic.
    return true;
  }
#endif

  const char* const kBrands[] = {
      "CHCA", "CHCB", "CHCG", "CHCH", "CHCI", "CHCJ", "CHCK", "CHCL",
      "CHFO", "CHFT", "CHHS", "CHHM", "CHMA", "CHMB", "CHME", "CHMF",
      "CHMG", "CHMH", "CHMI", "CHMQ", "CHMV", "CHNB", "CHNC", "CHNG",
      "CHNH", "CHNI", "CHOA", "CHOB", "CHOC", "CHON", "CHOO", "CHOP",
      "CHOQ", "CHOR", "CHOS", "CHOT", "CHOU", "CHOX", "CHOY", "CHOZ",
      "CHPD", "CHPE", "CHPF", "CHPG", "ECBA", "ECBB", "ECDA", "ECDB",
      "ECSA", "ECSB", "ECVA", "ECVB", "ECWA", "ECWB", "ECWC", "ECWD",
      "ECWE", "ECWF", "EUBB", "EUBC", "GGLA", "GGLS"
  };
  const char* const* end = &kBrands[arraysize(kBrands)];
  const char* const* found = std::find(&kBrands[0], end, brand);
  if (found != end)
    return true;

  return StartsWithASCII(brand, "EUB", true) ||
         StartsWithASCII(brand, "EUC", true) ||
         StartsWithASCII(brand, "GGR", true);
}

bool IsOrganicFirstRun(const std::string& brand) {
#if defined(OS_MACOSX)
  if (brand.empty()) {
    // An empty brand string on Mac is used for channels other than stable,
    // which are always organic.
    return true;
  }
#endif

  return StartsWithASCII(brand, "GG", true) ||
         StartsWithASCII(brand, "EU", true);
}

bool IsInternetCafeBrandCode(const std::string& brand) {
  const char* const kBrands[] = {
    "CHIQ", "CHSG", "HLJY", "NTMO", "OOBA", "OOBB", "OOBC", "OOBD", "OOBE",
    "OOBF", "OOBG", "OOBH", "OOBI", "OOBJ", "IDCM",
  };
  const char* const* end = &kBrands[arraysize(kBrands)];
  const char* const* found = std::find(&kBrands[0], end, brand);
  return found != end;
}

// BrandForTesting ------------------------------------------------------------

BrandForTesting::BrandForTesting(const std::string& brand) : brand_(brand) {
  DCHECK(g_brand_for_testing == NULL);
  g_brand_for_testing = brand_.c_str();
}

BrandForTesting::~BrandForTesting() {
  g_brand_for_testing = NULL;
}


}  // namespace google_brand