<?php

namespace NumberToWords\Legacy\Numbers\Words\Locale;

use NumberToWords\Exception\NumberToWordsException;
use NumberToWords\Legacy\Numbers\Words;

class Yo extends Words
{
    const LOCALE = 'yo';
    const LANGUAGE_NAME = 'Yoruba';
    const LANGUAGE_NAME_NATIVE = 'Yorùbá';
    const MINUS = 'iyokuro';

    protected $zero = 'odo';
    protected static $conjunction = 'ati';
    protected static $separator = 'pẹlu';

    /**
     * Sources
     * https://en.wikipedia.org/wiki/Yoruba_numerals
     * https://en.09nt.com/yoruba-numbers-from-1-to-100
     */
    protected static $unit = [
    0 => '',
    1 => 'ọkan',
    2 => 'meji',
    3 => 'mẹta',
    4 => 'mẹrin',
    5 => 'marun',
    6 => 'mẹfa',
    7 => 'meje',
    8 => 'mẹjọ',
    9 => 'mẹsan'
    ];

    protected static $teens = [
    10 => 'mẹwa',
    11 => 'mọkanla',
    12 => 'mejila',
    13 => 'mẹtala',
    14 => 'mẹrinla',
    15 => 'mẹẹdogun',
    16 => 'mẹrindilogun',
    17 => 'mẹtala',
    18 => 'mejidilogun',
    19 => 'mọkandinlogun',
    ];

    protected static $tens = [
    20 => 'ogun',
    30 => 'ọgbọn',
    40 => 'ogoji',
    50 => 'aadọta',
    60 => 'Ogota',
    70 => 'aadọrin',
    80 => 'ọgọrin',
    90 => 'aadọrun',
    ];

    protected static $hundred = [
    0 => '',
    100 => 'ọgọrun',
    200 => 'igba',
    300 => 'ọ̀ọ́dúrún',
    400 => 'irinwó',
    500 => 'ẹdẹgbẹta',
    600 => 'ẹgbẹta',
    700 => 'ẹẹdẹgbẹrin',
    800 => 'ẹgbẹ̀rin',
    900 => 'ẹ̀ẹ́dẹ́gbẹ̀rún',
    ];

    protected static $mega = [
    1 => 'ẹgbẹrun',
    2 => 'miliọnu',
    3 => 'biliọnu',
    4 => 'miliọnu miliọnu',
    5 => 'biliọnu miliọnu',
    6 => 'biliọnu biliọnu',
    7 => 'aimoye miliọnu',
    ];

    public static $currencyNames = [
    'ALL' => [['lek'], ['qindarka']],
    'AUD' => [['Australian dollar'], ['cent']],
    'BAM' => [['convertible marka'], ['fenig']],
    'BGN' => [['lev'], ['stotinka']],
    'BRL' => [['real'], ['centavos']],
    'BYR' => [['Belarussian rouble'], ['kopiejka']],
    'CAD' => [['Canadian dollar'], ['cent']],
    'CHF' => [['Swiss franc'], ['rapp']],
    'CYP' => [['Cypriot pound'], ['cent']],
    'CZK' => [['Czech koruna'], ['halerz']],
    'DKK' => [['Danish krone'], ['ore']],
    'DZD' => [['dinar'], ['cent']],
    'EEK' => [['kroon'], ['senti']],
    'EUR' => [['euro'], ['euro-cent']],
    'GBP' => [['pound', 'pounds'], ['pence', 'pence']],
    'HKD' => [['Hong Kong dollar'], ['cent']],
    'HRK' => [['Croatian kuna'], ['lipa']],
    'HUF' => [['forint'], ['filler']],
    'ILS' => [['new sheqel', 'new sheqels'], ['agora', 'agorot']],
    'ISK' => [['Icelandic króna'], ['aurar']],
    'JPY' => [['yen'], ['sen']],
    'LTL' => [['litas'], ['cent']],
    'LVL' => [['lat'], ['sentim']],
    'LYD' => [['dinar'], ['cent']],
    'MAD' => [['dirham'], ['cent']],
    'MKD' => [['Macedonian dinar'], ['deni']],
    'MRO' => [['ouguiya'], ['khoums']],
    'MTL' => [['Maltese lira'], ['centym']],
    'NGN' => [['Naira'], ['kobo']],
    'NOK' => [['Norwegian krone'], ['oere']],
    'PHP' => [['peso'], ['centavo']],
    'PLN' => [['zloty', 'zlotys'], ['grosz']],
    'ROL' => [['Romanian leu'], ['bani']],
    'RUB' => [['Russian Federation rouble'], ['kopiejka']],
    'SEK' => [['Swedish krona'], ['oere']],
    'SIT' => [['Tolar'], ['stotinia']],
    'SKK' => [['Slovak koruna'], []],
    'TMT' => [['manat'], ['tenge']],
    'TND' => [['dinar'], ['cent']],
    'TRL' => [['lira'], ['kuruş']],
    'UAH' => [['hryvna'], ['cent']],
    'USD' => [['dollar'], ['cent']],
    'XAF' => [['CFA franc'], ['cent']],
    'XOF' => [['CFA franc'], ['cent']],
    'XPF' => [['CFP franc'], ['centime']],
    'YUM' => [['dinar'], ['para']],
    'ZAR' => [['rand'], ['cent']],
    ];

    /**
     * @param  $num
     * @return string
     */
    protected function toWords($num)
    {
        $word = "";
        $num = preg_replace('/[\W]/', '', $num);
        $formatted = number_format((int)$num, 2);

        $leftNumber = explode(".", $formatted);
        $split = explode(",", $leftNumber[0]);

        foreach ($split as $key => $number) {
            if(!$number) { continue;
            }
            $suffix = $this->_suffix($number); //2
            $prefix = $this->_prefix(count($split) - 1); //million
            $combined = trim($prefix.' '.$suffix);

            $word .= ((count($split) == 1 && !empty($word)
                    ? " " . self::$conjunction . " "
                    : !empty($word)) ? ", " : "") . $combined;
            unset($split[$key]);
        }

        return preg_replace(array('/\s{2,}/', '/[\t\n]/'), ' ', $word);
    }

    private function _prefix($num)
    {
        switch ($num) {
        case 0:
            return '';
        case 1:
        case 2:
        case 3:
        case 4:
        case 5:
        case 6:
            return self::$mega[$num];
        default:
            return self::$mega[7];
        }
    }

    private function _suffix($num)
    {
        $word = "";
        $num = (int) $num;
        if (strlen($num) == 3) {
            $hundred = $num - ($num % 100);
            $word .= self::$hundred[$hundred];

            $num = (int) substr($num, 1);
        }
        if (strlen($num) == 2 && $num > 19) {
            $ten = $num - ($num % 10);
            $word .= ($word && !empty(self::$tens[$ten])
                    ? " " . self::$conjunction . " " : '') . self::$tens[$ten];

            $num = (int) substr($num, 1);
        }

        if (strlen($num) == 2 && $num <= 19) {
            $word .= ($word && !empty(self::$teens[$num])
                    ? " " . self::$conjunction . " " : '') . self::$teens[$num];

            $num = str_replace($num, "", $num);
        }

        if (strlen($num) == 1) {
            $word .= ($word && !empty(self::$unit[$num])
                    ? " " . self::$conjunction . " " : '') . self::$unit[$num];
        }

        return $word;
    }

    /**
     * @param string $currency
     * @param int    $decimal
     * @param int    $fraction
     *
     * @return string
     * @throws NumberToWordsException
     */
    public function toCurrencyWords($currency, $decimal, $fraction = null)
    {
        $currency = strtoupper($currency);

        if (!array_key_exists($currency, static::$currencyNames)) {
            throw new NumberToWordsException(
                sprintf(
                    'Currency "%s" is not available for "%s" language',
                    $currency,
                    get_class($this)
                )
            );
        }

        $actual = $this->toWords($decimal);

        $word = $actual . " " . self::$currencyNames[$currency][0][0];

        if ($fraction) {
            $decimal = $this->toWords($fraction);
            $word .= " ".self::$separator . " ";
            $word .= self::$currencyNames[$currency][1][0]. " ".$decimal;
        }

        return $word;
    }

}