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/**
 * @toast-ui/editor : i18n
 * @version 3.2.0 | Fri Aug 05 2022
 * @author NHN Cloud FE Development Lab 
 * @license MIT
 */

/**
 * @fileoverview Extend the target object from other objects.
 * @author NHN FE Development Lab 
 */

/**
 * @module object
 */

/**
 * Extend the target object from other objects.
 * @param {object} target - Object that will be extended
 * @param {...object} objects - Objects as sources
 * @returns {object} Extended object
 * @memberof module:object
 */
function extend(target, objects) { // eslint-disable-line no-unused-vars
  var hasOwnProp = Object.prototype.hasOwnProperty;
  var source, prop, i, len;

  for (i = 1, len = arguments.length; i < len; i += 1) {
    source = arguments[i];
    for (prop in source) {
      if (hasOwnProp.call(source, prop)) {
        target[prop] = source[prop];
      }
    }
  }

  return target;
}

var extend_1 = extend;

/**
 * @fileoverview Check whether the given variable is an instance of Array or not.
 * @author NHN FE Development Lab 
 */

/**
 * Check whether the given variable is an instance of Array or not.
 * If the given variable is an instance of Array, return true.
 * @param {*} obj - Target for checking
 * @returns {boolean} Is array instance?
 * @memberof module:type
 */
function isArray$1(obj) {
  return obj instanceof Array;
}

var isArray_1 = isArray$1;

/* eslint-disable complexity */

var isArray = isArray_1;

/**
 * @module array
 */

/**
 * Returns the first index at which a given element can be found in the array
 * from start index(default 0), or -1 if it is not present.
 * It compares searchElement to elements of the Array using strict equality
 * (the same method used by the ===, or triple-equals, operator).
 * @param {*} searchElement Element to locate in the array
 * @param {Array} array Array that will be traversed.
 * @param {number} startIndex Start index in array for searching (default 0)
 * @returns {number} the First index at which a given element, or -1 if it is not present
 * @memberof module:array
 * @example
 * // ES6
 * import inArray from 'tui-code-snippet/array/inArray';
 * 
 * // CommonJS
 * const inArray = require('tui-code-snippet/array/inArray');
 *
 * const arr = ['one', 'two', 'three', 'four'];
 * const idx1 = inArray('one', arr, 3); // -1
 * const idx2 = inArray('one', arr); // 0
 */
function inArray(searchElement, array, startIndex) {
  var i;
  var length;
  startIndex = startIndex || 0;

  if (!isArray(array)) {
    return -1;
  }

  if (Array.prototype.indexOf) {
    return Array.prototype.indexOf.call(array, searchElement, startIndex);
  }

  length = array.length;
  for (i = startIndex; startIndex >= 0 && i < length; i += 1) {
    if (array[i] === searchElement) {
      return i;
    }
  }

  return -1;
}

var inArray_1 = inArray;

/**
 * @class
 * @ignore
 * @classdesc ES6 Map
 */
var Map = /** @class */ (function () {
    function Map() {
        this.keys = [];
        this.values = [];
    }
    Map.prototype.getKeyIndex = function (key) {
        return inArray_1(key, this.keys);
    };
    Map.prototype.get = function (key) {
        return this.values[this.getKeyIndex(key)];
    };
    Map.prototype.set = function (key, value) {
        var keyIndex = this.getKeyIndex(key);
        if (keyIndex > -1) {
            this.values[keyIndex] = value;
        }
        else {
            this.keys.push(key);
            this.values.push(value);
        }
        return this;
    };
    Map.prototype.has = function (key) {
        return this.getKeyIndex(key) > -1;
    };
    Map.prototype.delete = function (key) {
        var keyIndex = this.getKeyIndex(key);
        if (keyIndex > -1) {
            this.keys.splice(keyIndex, 1);
            this.values.splice(keyIndex, 1);
            return true;
        }
        return false;
    };
    Map.prototype.forEach = function (callback, thisArg) {
        var _this = this;
        if (thisArg === void 0) { thisArg = this; }
        this.values.forEach(function (value, index) {
            if (value && _this.keys[index]) {
                callback.call(thisArg, value, _this.keys[index], _this);
            }
        });
    };
    Map.prototype.clear = function () {
        this.keys = [];
        this.values = [];
    };
    return Map;
}());

/**
 * @fileoverview Implements i18n
 * @author NHN Cloud FE Development Lab 
 */
var DEFAULT_CODE = 'en-US';
/**
 * Class I18n
 * @ignore
 */
var I18n = /** @class */ (function () {
    function I18n() {
        this.code = DEFAULT_CODE;
        this.langs = new Map();
    }
    I18n.prototype.setCode = function (code) {
        this.code = code || DEFAULT_CODE;
    };
    /**
     * Set language set
     * @param {string|string[]} codes locale code
     * @param {object} data language set
     */
    I18n.prototype.setLanguage = function (codes, data) {
        var _this = this;
        codes = [].concat(codes);
        codes.forEach(function (code) {
            if (!_this.langs.has(code)) {
                _this.langs.set(code, data);
            }
            else {
                var langData = _this.langs.get(code);
                _this.langs.set(code, extend_1(langData, data));
            }
        });
    };
    I18n.prototype.get = function (key, code) {
        if (!code) {
            code = this.code;
        }
        var langSet = this.langs.get(code);
        if (!langSet) {
            langSet = this.langs.get(DEFAULT_CODE);
        }
        var text = langSet[key];
        if (!text) {
            throw new Error("There is no text key \"" + key + "\" in " + code);
        }
        return text;
    };
    return I18n;
}());
var i18n = new I18n();

export { I18n, i18n as default };