// prettier-ignore
const supportedLocales = [
    'ach', 'af', 'am', 'an', 'ar', 'ast', 'az', 'be', 'bg', 'bn', 'br', 'bs',
    'ca', 'cak', 'ckb', 'cs', 'cy', 'da', 'de', 'dsb', 'el', 'en', 'eo', 'es',
    'et', 'eu', 'fa', 'ff', 'fi', 'fr', 'fy', 'ga', 'gd', 'gl', 'he', 'hr',
    'hsb', 'hu', 'ia', 'id', 'it', 'ja', 'ka', 'kk', 'kn', 'ko', 'lb', 'lo',
    'lt', 'lv', 'meh', 'ml', 'ms', 'nl', 'nn', 'no', 'oc', 'pl', 'pt', 'rm',
    'ro', 'ru', 'sc', 'scn', 'sk', 'sl', 'sr', 'sv', 'szl', 'tg', 'th', 'tr',
    'uk', 'zh-CN', 'zh-TW',
];
const placeholderFields = ['year', 'month', 'day'];
const placeholders = {
    ach: { year: 'mwaka', month: 'dwe', day: 'nino' },
    af: { year: 'jjjj', month: 'mm', day: 'dd' },
    am: { year: 'ዓዓዓዓ', month: 'ሚሜ', day: 'ቀቀ' },
    an: { year: 'aaaa', month: 'mm', day: 'dd' },
    ar: { year: 'سنة', month: 'شهر', day: 'يوم' },
    ast: { year: 'aaaa', month: 'mm', day: 'dd' },
    az: { year: 'iiii', month: 'aa', day: 'gg' },
    be: { year: 'гггг', month: 'мм', day: 'дд' },
    bg: { year: 'гггг', month: 'мм', day: 'дд' },
    bn: { year: 'yyyy', month: 'মিমি', day: 'dd' },
    br: { year: 'bbbb', month: 'mm', day: 'dd' },
    bs: { year: 'gggg', month: 'mm', day: 'dd' },
    ca: { year: 'aaaa', month: 'mm', day: 'dd' },
    cak: { year: 'jjjj', month: 'ii', day: "q'q'" },
    ckb: { year: 'ساڵ', month: 'مانگ', day: 'ڕۆژ' },
    cs: { year: 'rrrr', month: 'mm', day: 'dd' },
    cy: { year: 'bbbb', month: 'mm', day: 'dd' },
    da: { year: 'åååå', month: 'mm', day: 'dd' },
    de: { year: 'jjjj', month: 'mm', day: 'tt' },
    dsb: { year: 'llll', month: 'mm', day: 'źź' },
    el: { year: 'εεεε', month: 'μμ', day: 'ηη' },
    en: { year: 'yyyy', month: 'mm', day: 'dd' },
    eo: { year: 'jjjj', month: 'mm', day: 'tt' },
    es: { year: 'aaaa', month: 'mm', day: 'dd' },
    et: { year: 'aaaa', month: 'kk', day: 'pp' },
    eu: { year: 'uuuu', month: 'hh', day: 'ee' },
    fa: { year: 'سال', month: 'ماه', day: 'روز' },
    ff: { year: 'hhhh', month: 'll', day: 'ññ' },
    fi: { year: 'vvvv', month: 'kk', day: 'pp' },
    fr: { year: 'aaaa', month: 'mm', day: 'jj' },
    fy: { year: 'jjjj', month: 'mm', day: 'dd' },
    ga: { year: 'bbbb', month: 'mm', day: 'll' },
    gd: { year: 'bbbb', month: 'mm', day: 'll' },
    gl: { year: 'aaaa', month: 'mm', day: 'dd' },
    he: { year: 'שנה', month: 'חודש', day: 'יום' },
    hr: { year: 'gggg', month: 'mm', day: 'dd' },
    hsb: { year: 'llll', month: 'mm', day: 'dd' },
    hu: { year: 'éééé', month: 'hh', day: 'nn' },
    ia: { year: 'aaaa', month: 'mm', day: 'dd' },
    id: { year: 'tttt', month: 'bb', day: 'hh' },
    it: { year: 'aaaa', month: 'mm', day: 'gg' },
    ja: { year: ' 年 ', month: '月', day: '日' },
    ka: { year: 'წწწწ', month: 'თთ', day: 'რრ' },
    kk: { year: 'жжжж', month: 'аа', day: 'кк' },
    kn: { year: 'ವವವವ', month: 'ಮಿಮೀ', day: 'ದಿದಿ' },
    ko: { year: '연도', month: '월', day: '일' },
    lb: { year: 'jjjj', month: 'mm', day: 'dd' },
    lo: { year: 'ປປປປ', month: 'ດດ', day: 'ວວ' },
    lt: { year: 'mmmm', month: 'mm', day: 'dd' },
    lv: { year: 'gggg', month: 'mm', day: 'dd' },
    meh: { year: 'aaaa', month: 'mm', day: 'dd' },
    ml: { year: 'വർഷം', month: 'മാസം', day: 'തീയതി' },
    ms: { year: 'tttt', month: 'mm', day: 'hh' },
    nl: { year: 'jjjj', month: 'mm', day: 'dd' },
    nn: { year: 'åååå', month: 'mm', day: 'dd' },
    no: { year: 'åååå', month: 'mm', day: 'dd' },
    oc: { year: 'aaaa', month: 'mm', day: 'jj' },
    pl: { year: 'rrrr', month: 'mm', day: 'dd' },
    pt: { year: 'aaaa', month: 'mm', day: 'dd' },
    rm: { year: 'oooo', month: 'mm', day: 'dd' },
    ro: { year: 'aaaa', month: 'll', day: 'zz' },
    ru: { year: 'гггг', month: 'мм', day: 'дд' },
    sc: { year: 'aaaa', month: 'mm', day: 'dd' },
    scn: { year: 'aaaa', month: 'mm', day: 'jj' },
    sk: { year: 'rrrr', month: 'mm', day: 'dd' },
    sl: { year: 'llll', month: 'mm', day: 'dd' },
    sr: { year: 'гггг', month: 'мм', day: 'дд' },
    sv: { year: 'åååå', month: 'mm', day: 'dd' },
    szl: { year: 'rrrr', month: 'mm', day: 'dd' },
    tg: { year: 'сссс', month: 'мм', day: 'рр' },
    th: { year: 'ปปปป', month: 'ดด', day: 'วว' },
    tr: { year: 'yyyy', month: 'aa', day: 'gg' },
    uk: { year: 'рррр', month: 'мм', day: 'дд' },
    'zh-CN': { year: '年', month: '月', day: '日' },
    'zh-TW': { year: '年', month: '月', day: '日' },
};
// eslint-disable-next-line @typescript-eslint/ban-types
function getPlaceholderObj(locale) {
    if (!isSupportedLocale(locale)) {
        const localeLanguage = getLocaleLanguage(locale);
        if (!isSupportedLocale(localeLanguage)) {
            return placeholders.en;
        }
        else {
            return placeholders[localeLanguage];
        }
    }
    else {
        return placeholders[locale];
    }
}
export function getPlaceholder(field, value, 
// eslint-disable-next-line @typescript-eslint/ban-types
locale) {
    if (isPlaceholderField(field)) {
        return getPlaceholderObj(locale)[field];
    }
    if (isDefaultField(field)) {
        return value;
    }
    if (isTimeField(field)) {
        return '––';
    }
    return '';
}
function isSupportedLocale(locale) {
    return supportedLocales.includes(locale);
}
function isPlaceholderField(field) {
    return placeholderFields.includes(field);
}
function isTimeField(field) {
    return field === 'hour' || field === 'minute' || field === 'second';
}
function isDefaultField(field) {
    return field === 'era' || field === 'dayPeriod';
}
function getLocaleLanguage(locale) {
    if (Intl.Locale) {
        return new Intl.Locale(locale).language;
    }
    return locale.split('-')[0];
}