<?php

namespace Translator {

    const PATH = 'locales/';

    function translate($identifier)
    {
        $args = \func_get_args();

        \array_shift($args);
        \array_unshift($args, get($identifier, $identifier));

        foreach ($args as &$arg) {
            $arg = htmlspecialchars($arg, ENT_QUOTES, 'UTF-8', false);
        }

        return \call_user_func_array(
            'sprintf',
            $args
        );
    }

    function number($number)
    {
        return number_format(
            $number,
            get('number.decimals', 2),
            get('number.decimals_separator', '.'),
            get('number.thousands_separator', ',')
        );
    }

    function currency($amount)
    {
        $position = get('currency.position', 'before');
        $symbol = get('currency.symbol', '$');
        $str = '';

        if ($position === 'before') {
            $str .= $symbol;
        }

        $str .= number($amount);

        if ($position === 'after') {
            $str .= ' '.$symbol;
        }

        return $str;
    }

    function datetime($format, $timestamp)
    {
        if (! $timestamp) {
            return '';
        }

        return strftime(get($format, $format), (int) $timestamp);
    }

    function get($identifier, $default = '')
    {
        $locales = container();

        if (isset($locales[$identifier])) {
            return $locales[$identifier];
        }
        else {
            return $default;
        }
    }

    function load($language)
    {
        setlocale(LC_TIME, $language.'.UTF-8', $language);

        $path = PATH.$language;
        $locales = array();

        if (is_dir($path)) {

            $dir = new \DirectoryIterator($path);

            foreach ($dir as $fileinfo) {

                if (strpos($fileinfo->getFilename(), '.php') !== false) {
                    $locales = array_merge($locales, include $fileinfo->getPathname());
                }
            }
        }

        container($locales);
    }

    function container($locales = null)
    {
        static $values = array();

        if ($locales !== null) {
            $values = $locales;
        }

        return $values;
    }
}


namespace {

    function t() {
        return call_user_func_array('\Translator\translate', func_get_args());
    }

    function c() {
        return call_user_func_array('\Translator\currency', func_get_args());
    }

    function n() {
        return call_user_func_array('\Translator\number', func_get_args());
    }

    function dt() {
        return call_user_func_array('\Translator\datetime', func_get_args());
    }

    function p($value, $t1, $t2) {
        return $value > 1 ? $t2 : $t1;
    }
}