// Copyright (c) 2009 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.
//
// This file declares extension specific l10n utils.

#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_L10N_UTIL_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_L10N_UTIL_H_

#include <set>
#include <string>

class DictionaryValue;
class Extension;
class ExtensionMessageBundle;
class FilePath;

namespace extension_l10n_util {

// Returns default locale in form "en-US" or "sr" or empty string if
// "default_locale" section was not defined in the manifest.json file.
std::string GetDefaultLocaleFromManifest(const DictionaryValue& manifest,
                                         std::string* error);

// Adds locale_name to the extension if it's in chrome_locales, and
// if messages file is present (we don't check content of messages file here).
// Returns false if locale_name was not found in chrome_locales, and sets
// error with locale_name.
// If file name starts with . return true (helps testing extensions under svn).
bool AddLocale(const std::set<std::string>& chrome_locales,
               const FilePath& locale_folder,
               std::set<std::string>* valid_locales,
               std::string* locale_name,
               std::string* error);

// Adds valid locales to the extension.
// 1. Do nothing if _locales directory is missing (not an error).
// 2. Get list of Chrome locales.
// 3. Enumerate all subdirectories of _locales directory.
// 4. Intersect both lists, and add intersection to the extension.
// Returns false if any of supplied locales don't match chrome list of locales.
// Fills out error with offending locale name.
bool GetValidLocales(const FilePath& locale_path,
                     std::set<std::string>* locales,
                     std::string* error);

// Loads messages file for default locale, and application locale (application
// locale doesn't have to exist).
// It creates simplified in-memory representation of name-value pairs, where
// value part is actual message with placeholders resolved.
// Returns message bundle if it can load default locale messages file, and all
// messages are valid, else returns NULL and sets error.
ExtensionMessageBundle* LoadMessageCatalogs(const FilePath& locale_path,
                                            const std::string& default_locale,
                                            const std::string& app_locale,
                                            std::string* error);

// Returns relative l10n path to the resource.
FilePath GetL10nRelativePath(const FilePath& relative_resource_path);

}  // namespace extension_l10n_util

#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_L10N_UTIL_H_