// Copyright (C) 2013 Google Inc.
//
// 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 I18N_ADDRESSINPUT_ADDRESS_UI_H_
#define I18N_ADDRESSINPUT_ADDRESS_UI_H_

#include <string>
#include <vector>

namespace i18n {
namespace addressinput {

class Localization;
struct AddressUiComponent;

// Returns the list of supported CLDR region codes.
const std::vector<std::string>& GetRegionCodes();

// Returns the UI components for the CLDR |region_code|. Uses the strings from
// |localization|. The components can be in default or Latin order, depending on
// the BCP 47 |ui_language_tag|.
//
// Sets the |best_address_language_tag| to the BCP 47 language tag that should
// be saved with this address. This language will be used to get drop-downs to
// help users fill in their address, and to format the address that the user
// entered. The parameter should not be nullptr.
//
// Returns an empty vector on error.
std::vector<AddressUiComponent> BuildComponents(
    const std::string& region_code,
    const Localization& localization,
    const std::string& ui_language_tag,
    std::string* best_address_language_tag);

// Similar to BuildComponents() but in addition, it returns literals such as
// "-", "\n" and ",".
std::vector<AddressUiComponent> BuildComponentsWithLiterals(
    const std::string& region_code, const Localization& localization,
    const std::string& ui_language_tag, std::string* best_address_language_tag);

}  // namespace addressinput
}  // namespace i18n

#endif  // I18N_ADDRESSINPUT_ADDRESS_UI_H_
