//! Scripts Module
const Data = struct {
    s1: []const u16 = undefined,
    s2: []const u8 = undefined,
    s3: []const u8 = undefined,
};

const scripts = scripts: {
    const data = @import("script");
    break :scripts Data{
        .s1 = &data.s1,
        .s2 = &data.s2,
        .s3 = &data.s3,
    };
};

/// Scripts enum
pub const Script = enum {
    none,
    Adlam,
    Ahom,
    Anatolian_Hieroglyphs,
    Arabic,
    Armenian,
    Avestan,
    Balinese,
    Bamum,
    Bassa_Vah,
    Batak,
    Bengali,
    Bhaiksuki,
    Bopomofo,
    Brahmi,
    Braille,
    Buginese,
    Buhid,
    Canadian_Aboriginal,
    Carian,
    Caucasian_Albanian,
    Chakma,
    Cham,
    Cherokee,
    Chorasmian,
    Common,
    Coptic,
    Cuneiform,
    Cypriot,
    Cypro_Minoan,
    Cyrillic,
    Deseret,
    Devanagari,
    Dives_Akuru,
    Dogra,
    Duployan,
    Egyptian_Hieroglyphs,
    Elbasan,
    Elymaic,
    Ethiopic,
    Garay,
    Georgian,
    Glagolitic,
    Gothic,
    Grantha,
    Greek,
    Gujarati,
    Gunjala_Gondi,
    Gurmukhi,
    Gurung_Khema,
    Han,
    Hangul,
    Hanifi_Rohingya,
    Hanunoo,
    Hatran,
    Hebrew,
    Hiragana,
    Imperial_Aramaic,
    Inherited,
    Inscriptional_Pahlavi,
    Inscriptional_Parthian,
    Javanese,
    Kaithi,
    Kannada,
    Katakana,
    Kawi,
    Kayah_Li,
    Kharoshthi,
    Khitan_Small_Script,
    Khmer,
    Khojki,
    Khudawadi,
    Kirat_Rai,
    Lao,
    Latin,
    Lepcha,
    Limbu,
    Linear_A,
    Linear_B,
    Lisu,
    Lycian,
    Lydian,
    Mahajani,
    Makasar,
    Malayalam,
    Mandaic,
    Manichaean,
    Marchen,
    Masaram_Gondi,
    Medefaidrin,
    Meetei_Mayek,
    Mende_Kikakui,
    Meroitic_Cursive,
    Meroitic_Hieroglyphs,
    Miao,
    Modi,
    Mongolian,
    Mro,
    Multani,
    Myanmar,
    Nabataean,
    Nag_Mundari,
    Nandinagari,
    New_Tai_Lue,
    Newa,
    Nko,
    Nushu,
    Nyiakeng_Puachue_Hmong,
    Ogham,
    Ol_Chiki,
    Ol_Onal,
    Old_Hungarian,
    Old_Italic,
    Old_North_Arabian,
    Old_Permic,
    Old_Persian,
    Old_Sogdian,
    Old_South_Arabian,
    Old_Turkic,
    Old_Uyghur,
    Oriya,
    Osage,
    Osmanya,
    Pahawh_Hmong,
    Palmyrene,
    Pau_Cin_Hau,
    Phags_Pa,
    Phoenician,
    Psalter_Pahlavi,
    Rejang,
    Runic,
    Samaritan,
    Saurashtra,
    Sharada,
    Shavian,
    Siddham,
    SignWriting,
    Sinhala,
    Sogdian,
    Sora_Sompeng,
    Soyombo,
    Sundanese,
    Sunuwar,
    Syloti_Nagri,
    Syriac,
    Tagalog,
    Tagbanwa,
    Tai_Le,
    Tai_Tham,
    Tai_Viet,
    Takri,
    Tamil,
    Tangsa,
    Tangut,
    Telugu,
    Thaana,
    Thai,
    Tibetan,
    Tifinagh,
    Tirhuta,
    Todhri,
    Toto,
    Tulu_Tigalari,
    Ugaritic,
    Vai,
    Vithkuqi,
    Wancho,
    Warang_Citi,
    Yezidi,
    Yi,
    Zanabazar_Square,
};

/// Lookup the Script type for `cp`.
pub fn script(cp: u21) ?Script {
    const byte = scripts.s3[scripts.s2[scripts.s1[cp >> 8] + (cp & 0xff)]];
    if (byte == 0) return null;
    return @enumFromInt(byte);
}

test "script" {
    try testing.expectEqual(Script.Latin, script('A').?);
    // try testing.expectEqual(Script.Deseret, script('𐐌').?);
}

const std = @import("std");
const builtin = @import("builtin");
const unicode = std.unicode;
const testing = std.testing;