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import Type from './type';
import message from './loc/message';
/**
* Implements interface for works with language messages
* @memberOf BX
*/
export default class Loc
{
/**
* Gets message by id
* @param {string} messageId
* @param {object} replacements
* @return {?string}
*/
static getMessage(messageId: string, replacements:? {[key: string]: string} = null): ?string
{
let mess = message(messageId);
if (Type.isString(mess) && Type.isPlainObject(replacements))
{
Object.keys(replacements).forEach((replacement: string) => {
const globalRegexp = new RegExp(replacement, 'gi');
mess = mess.replace(
globalRegexp,
() => {
return Type.isNil(replacements[replacement]) ? '' : String(replacements[replacement]);
}
);
});
}
return mess;
}
static hasMessage(messageId: string): boolean
{
return Type.isString(messageId) && !Type.isNil(message[messageId]);
}
/**
* Sets message or messages
* @param {string | Object<string, string>} id
* @param {string} [value]
*/
static setMessage(id: string | {[key: string]: string}, value?: string)
{
if (Type.isString(id) && Type.isString(value))
{
message({[id]: value});
}
if (Type.isObject(id))
{
message(id);
}
}
/**
* Gets plural message by id and number
* @param {string} messageId
* @param {number} value
* @param {object} [replacements]
* @return {?string}
*/
static getMessagePlural(messageId: string, value: number, replacements:? {[key: string]: string} = null)
{
let result = '';
if (Type.isNumber(value))
{
if (this.hasMessage(`${messageId}_PLURAL_${this.getPluralForm(value)}`))
{
result = this.getMessage(`${messageId}_PLURAL_${this.getPluralForm(value)}`, replacements);
}
else
{
result = this.getMessage(`${messageId}_PLURAL_1`, replacements);
}
}
else
{
result = this.getMessage(messageId, replacements);
}
return result;
}
/**
* Gets language plural form id by number
* see http://docs.translatehouse.org/projects/localization-guide/en/latest/l10n/pluralforms.html
* @param {number} value
* @param {string} [languageId]
* @return {?number}
*/
static getPluralForm(value: number, languageId?: string)
{
let pluralForm;
if (!Type.isStringFilled(languageId))
{
languageId = message('LANGUAGE_ID');
}
if (value < 0)
{
value = (-1) * value;
}
switch (languageId)
{
case 'ar':
pluralForm = ((value !== 1) ? 1 : 0);
/*
if (value === 0)
{
pluralForm = 0;
}
else if (value === 1)
{
pluralForm = 1;
}
else if (value === 2)
{
pluralForm = 2;
}
else if (
value % 100 >= 3
&& value % 100 <= 10
)
{
pluralForm = 3;
}
else if (value % 100 >= 11)
{
pluralForm = 4;
}
else
{
pluralForm = 5;
}
*/
break;
case 'br':
case 'fr':
case 'tr':
pluralForm = ((value > 1) ? 1 : 0);
break;
case 'de':
case 'en':
case 'hi':
case 'it':
case 'la':
pluralForm = ((value !== 1) ? 1 : 0);
break;
case 'ru':
case 'ua':
if (
(value % 10 === 1)
&& (value % 100 !== 11)
)
{
pluralForm = 0;
}
else if (
(value % 10 >= 2)
&& (value % 10 <= 4)
&& (
(value % 100 < 10)
|| (value % 100 >= 20)
)
)
{
pluralForm = 1;
}
else
{
pluralForm = 2;
}
break;
case 'pl':
if (value === 1)
{
pluralForm = 0;
}
else if (
value % 10 >= 2
&& value % 10 <= 4
&& (
value % 100 < 10
|| value % 100 >= 20
)
)
{
pluralForm = 1;
}
else
{
pluralForm = 2;
}
break;
case 'id':
case 'ja':
case 'ms':
case 'sc':
case 'tc':
case 'th':
case 'vn':
pluralForm = 0;
break;
default:
pluralForm = 1;
break;
}
return pluralForm;
}
}