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// Copyright 2008 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//      http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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 * @fileoverview Functions to list locale-specific font list and generic name.
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 * Generic name used for a font family would be locale dependent. For example,
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 * for 'zh'(Chinese) users, the name for Serif family would be in Chinese.
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 * Further documentation at: http://go/genericfontnames.
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 */
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goog.provide('goog.locale.genericFontNames');
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/**
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 * This object maps (resourceName, localeName) to a resourceObj.
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 * @type {Object}
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 * @private
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 */
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goog.locale.genericFontNames.data_ = {};
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/**
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 * Normalizes the given locale id to standard form. eg: zh_Hant_TW.
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 * Many a times, input locale would be like: zh-tw, zh-hant-tw.
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 * @param {string} locale The locale id to be normalized.
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 * @return {string} Normalized locale id.
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 * @private
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 */
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goog.locale.genericFontNames.normalize_ = function(locale) {
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  locale = locale.replace(/-/g, '_');
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  locale =
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      locale.replace(/_[a-z]{2}$/, function(str) { return str.toUpperCase(); });
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  locale = locale.replace(/[a-z]{4}/, function(str) {
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    return str.substring(0, 1).toUpperCase() + str.substring(1);
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  });
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  return locale;
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};
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/**
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 * Gets the list of fonts and their generic names for the given locale.
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 * @param {string} locale The locale for which font lists and font family names
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 *     to be produced. The expected locale id is as described in
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 *     http://wiki/Main/IIISynonyms in all lowercase for easy matching.
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 *     Smallest possible id is expected.
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 *     Examples: 'zh', 'zh-tw', 'iw' instead of 'zh-CN', 'zh-Hant-TW', 'he'.
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 * @return {Array<Object>} List of objects with generic name as 'caption' and
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 *     corresponding font name lists as 'value' property.
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 */
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goog.locale.genericFontNames.getList = function(locale) {
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  locale = goog.locale.genericFontNames.normalize_(locale);
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  if (locale in goog.locale.genericFontNames.data_) {
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    return goog.locale.genericFontNames.data_[locale];
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  }
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  return [];
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};
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