// Author: Amir Hossein Kargaran (TypeScript port)
// Date: March, 2025

import { ISO_15924_CODE } from "../iso";

// Description: This code detects/separates the script(s) (writing system(s)) of the given text.
// TypeScript port of the original Python implementation.

// Types
type ScriptRange = [number, number];
type ScriptRanges = Record<string, ScriptRange[]>;

type ScoredScript = [ISO_15924_CODE | null, number, ScriptDetails];

interface ScriptDetails {
  details: Record<ISO_15924_CODE, number> | null;
  tie: boolean | null;
  interval: number | null;
}

// The SCRIPT_RANGES object contains Unicode ranges for different scripts
export const SCRIPT_RANGES: ScriptRanges = {
  Latn: [
    [65, 90],
    [97, 122],
    [170, 170],
    [186, 186],
    [192, 214],
    [216, 246],
    [248, 696],
    [736, 740],
    [7424, 7461],
    [7468, 7516],
    [7522, 7525],
    [7531, 7543],
    [7545, 7614],
    [7680, 7935],
    [8305, 8305],
    [8319, 8319],
    [8336, 8348],
    [8490, 8491],
    [8498, 8498],
    [8526, 8526],
    [8544, 8584],
    [11360, 11391],
    [42786, 42887],
    [42891, 42954],
    [42960, 42961],
    [42963, 42963],
    [42965, 42969],
    [42994, 43007],
    [43824, 43866],
    [43868, 43876],
    [43878, 43881],
    [64256, 64262],
    [65313, 65338],
    [65345, 65370],
    [67456, 67461],
    [67463, 67504],
    [67506, 67514],
    [122624, 122654],
    [122661, 122666],
  ], // Latin
  Bopo: [
    [746, 747],
    [12549, 12591],
    [12704, 12735],
  ], // Bopomofo
  Zinh: [
    [768, 879],
    [1157, 1158],
    [2385, 2388],
    [6832, 6862],
    [7376, 7378],
    [7380, 7392],
    [7394, 7400],
    [7405, 7405],
    [7412, 7412],
    [7416, 7417],
    [7616, 7679],
    [8204, 8205],
    [8400, 8432],
    [12330, 12333],
    [12441, 12442],
    [65024, 65039],
    [65056, 65069],
    [66045, 66045],
    [66272, 66272],
    [70459, 70459],
    [118528, 118573],
    [118576, 118598],
    [119143, 119145],
    [119163, 119170],
    [119173, 119179],
    [119210, 119213],
    [917760, 917999],
  ], // Inherited
  Grek: [
    [880, 883],
    [885, 887],
    [890, 893],
    [895, 895],
    [900, 900],
    [902, 902],
    [904, 906],
    [908, 908],
    [910, 929],
    [931, 993],
    [1008, 1023],
    [7462, 7466],
    [7517, 7521],
    [7526, 7530],
    [7615, 7615],
    [7936, 7957],
    [7960, 7965],
    [7968, 8005],
    [8008, 8013],
    [8016, 8023],
    [8025, 8025],
    [8027, 8027],
    [8029, 8029],
    [8031, 8061],
    [8064, 8116],
    [8118, 8132],
    [8134, 8147],
    [8150, 8155],
    [8157, 8175],
    [8178, 8180],
    [8182, 8190],
    [8486, 8486],
    [43877, 43877],
    [65856, 65934],
    [65952, 65952],
    [119296, 119365],
  ], // Greek
  Copt: [
    [994, 1007],
    [11392, 11507],
    [11513, 11519],
  ], // Coptic
  Cyrl: [
    [1024, 1156],
    [1159, 1327],
    [7296, 7304],
    [7467, 7467],
    [7544, 7544],
    [11744, 11775],
    [42560, 42655],
    [65070, 65071],
    [122928, 122989],
    [123023, 123023],
  ], // Cyrillic
  Armn: [
    [1329, 1366],
    [1369, 1418],
    [1421, 1423],
    [64275, 64279],
  ], // Armenian
  Hebr: [
    [1425, 1479],
    [1488, 1514],
    [1519, 1524],
    [64285, 64310],
    [64312, 64316],
    [64318, 64318],
    [64320, 64321],
    [64323, 64324],
    [64326, 64335],
  ], // Hebrew
  Arab: [
    [1536, 1540],
    [1542, 1547],
    [1549, 1562],
    [1564, 1566],
    [1568, 1599],
    [1601, 1648],
    [1649, 1756],
    [1758, 1791],
    [1872, 1919],
    [2160, 2190],
    [2192, 2193],
    [2200, 2273],
    [2275, 2303],
    [64336, 64450],
    [64467, 64829],
    [64832, 64911],
    [64914, 64967],
    [64975, 64975],
    [65008, 65023],
    [65136, 65140],
    [65142, 65276],
    [69216, 69246],
    [69373, 69375],
    [126464, 126467],
    [126469, 126495],
    [126497, 126498],
    [126500, 126500],
    [126503, 126503],
    [126505, 126514],
    [126516, 126519],
    [126521, 126521],
    [126523, 126523],
    [126530, 126530],
    [126535, 126535],
    [126537, 126537],
    [126539, 126539],
    [126541, 126543],
    [126545, 126546],
    [126548, 126548],
    [126551, 126551],
    [126553, 126553],
    [126555, 126555],
    [126557, 126557],
    [126559, 126559],
    [126561, 126562],
    [126564, 126564],
    [126567, 126570],
    [126572, 126578],
    [126580, 126583],
    [126585, 126588],
    [126590, 126590],
    [126592, 126601],
    [126603, 126619],
    [126625, 126627],
    [126629, 126633],
    [126635, 126651],
    [126704, 126705],
  ], // Arabic
  Syrc: [
    [1792, 1805],
    [1807, 1866],
    [1869, 1871],
    [2144, 2154],
  ], // Syriac
  Thaa: [[1920, 1969]], // Thaana
  Nkoo: [
    [1984, 2042],
    [2045, 2047],
  ], // Nko
  Samr: [
    [2048, 2093],
    [2096, 2110],
  ], // Samaritan
  Mand: [
    [2112, 2139],
    [2142, 2142],
  ], // Mandaic
  Deva: [
    [2304, 2384],
    [2389, 2403],
    [2406, 2431],
    [43232, 43263],
    [72448, 72457],
  ], // Devanagari
  Beng: [
    [2432, 2435],
    [2437, 2444],
    [2447, 2448],
    [2451, 2472],
    [2474, 2480],
    [2482, 2482],
    [2486, 2489],
    [2492, 2500],
    [2503, 2504],
    [2507, 2510],
    [2519, 2519],
    [2524, 2525],
    [2527, 2531],
    [2534, 2558],
  ], // Bengali
  Guru: [
    [2561, 2563],
    [2565, 2570],
    [2575, 2576],
    [2579, 2600],
    [2602, 2608],
    [2610, 2611],
    [2613, 2614],
    [2616, 2617],
    [2620, 2620],
    [2622, 2626],
    [2631, 2632],
    [2635, 2637],
    [2641, 2641],
    [2649, 2652],
    [2654, 2654],
    [2662, 2678],
  ], // Gurmukhi
  Gujr: [
    [2689, 2691],
    [2693, 2701],
    [2703, 2705],
    [2707, 2728],
    [2730, 2736],
    [2738, 2739],
    [2741, 2745],
    [2748, 2757],
    [2759, 2761],
    [2763, 2765],
    [2768, 2768],
    [2784, 2787],
    [2790, 2801],
    [2809, 2815],
  ], // Gujarati
  Orya: [
    [2817, 2819],
    [2821, 2828],
    [2831, 2832],
    [2835, 2856],
    [2858, 2864],
    [2866, 2867],
    [2869, 2873],
    [2876, 2884],
    [2887, 2888],
    [2891, 2893],
    [2901, 2903],
    [2908, 2909],
    [2911, 2915],
    [2918, 2935],
  ], // Oriya
  Taml: [
    [2946, 2947],
    [2949, 2954],
    [2958, 2960],
    [2962, 2965],
    [2969, 2970],
    [2972, 2972],
    [2974, 2975],
    [2979, 2980],
    [2984, 2986],
    [2990, 3001],
    [3006, 3010],
    [3014, 3016],
    [3018, 3021],
    [3024, 3024],
    [3031, 3031],
    [3046, 3066],
    [73664, 73713],
    [73727, 73727],
  ], // Tamil
  Telu: [
    [3072, 3084],
    [3086, 3088],
    [3090, 3112],
    [3114, 3129],
    [3132, 3140],
    [3142, 3144],
    [3146, 3149],
    [3157, 3158],
    [3160, 3162],
    [3165, 3165],
    [3168, 3171],
    [3174, 3183],
    [3191, 3199],
  ], // Telugu
  Knda: [
    [3200, 3212],
    [3214, 3216],
    [3218, 3240],
    [3242, 3251],
    [3253, 3257],
    [3260, 3268],
    [3270, 3272],
    [3274, 3277],
    [3285, 3286],
    [3293, 3294],
    [3296, 3299],
    [3302, 3311],
    [3313, 3315],
  ], // Kannada
  Mlym: [
    [3328, 3340],
    [3342, 3344],
    [3346, 3396],
    [3398, 3400],
    [3402, 3407],
    [3412, 3427],
    [3430, 3455],
  ], // Malayalam
  Sinh: [
    [3457, 3459],
    [3461, 3478],
    [3482, 3505],
    [3507, 3515],
    [3517, 3517],
    [3520, 3526],
    [3530, 3530],
    [3535, 3540],
    [3542, 3542],
    [3544, 3551],
    [3558, 3567],
    [3570, 3572],
    [70113, 70132],
  ], // Sinhala
  Thai: [
    [3585, 3642],
    [3648, 3675],
  ], // Thai
  Laoo: [
    [3713, 3714],
    [3716, 3716],
    [3718, 3722],
    [3724, 3747],
    [3749, 3749],
    [3751, 3773],
    [3776, 3780],
    [3782, 3782],
    [3784, 3790],
    [3792, 3801],
    [3804, 3807],
  ], // Lao
  Tibt: [
    [3840, 3911],
    [3913, 3948],
    [3953, 3991],
    [3993, 4028],
    [4030, 4044],
    [4046, 4052],
    [4057, 4058],
  ], // Tibetan
  Mymr: [
    [4096, 4255],
    [43488, 43518],
    [43616, 43647],
  ], // Myanmar
  Geor: [
    [4256, 4293],
    [4295, 4295],
    [4301, 4301],
    [4304, 4346],
    [4348, 4351],
    [7312, 7354],
    [7357, 7359],
    [11520, 11557],
    [11559, 11559],
    [11565, 11565],
  ], // Georgian
  Hang: [
    [4352, 4607],
    [12334, 12335],
    [12593, 12686],
    [12800, 12830],
    [12896, 12926],
    [43360, 43388],
    [44032, 55203],
    [55216, 55238],
    [55243, 55291],
    [65440, 65470],
    [65474, 65479],
    [65482, 65487],
    [65490, 65495],
    [65498, 65500],
  ], // Hangul
  Ethi: [
    [4608, 4680],
    [4682, 4685],
    [4688, 4694],
    [4696, 4696],
    [4698, 4701],
    [4704, 4744],
    [4746, 4749],
    [4752, 4784],
    [4786, 4789],
    [4792, 4798],
    [4800, 4800],
    [4802, 4805],
    [4808, 4822],
    [4824, 4880],
    [4882, 4885],
    [4888, 4954],
    [4957, 4988],
    [4992, 5017],
    [11648, 11670],
    [11680, 11686],
    [11688, 11694],
    [11696, 11702],
    [11704, 11710],
    [11712, 11718],
    [11720, 11726],
    [11728, 11734],
    [11736, 11742],
    [43777, 43782],
    [43785, 43790],
    [43793, 43798],
    [43808, 43814],
    [43816, 43822],
    [124896, 124902],
    [124904, 124907],
    [124909, 124910],
    [124912, 124926],
  ], // Ethiopic
  Cher: [
    [5024, 5109],
    [5112, 5117],
    [43888, 43967],
  ], // Cherokee
  Cans: [
    [5120, 5759],
    [6320, 6389],
    [72368, 72383],
  ], // Canadian_Aboriginal
  Ogam: [[5760, 5788]], // Ogham
  Runr: [
    [5792, 5866],
    [5870, 5880],
  ], // Runic
  Tglg: [
    [5888, 5909],
    [5919, 5919],
  ], // Tagalog
  Hano: [[5920, 5940]], // Hanunoo
  Buhd: [[5952, 5971]], // Buhid
  Tagb: [
    [5984, 5996],
    [5998, 6000],
    [6002, 6003],
  ], // Tagbanwa
  Khmr: [
    [6016, 6109],
    [6112, 6121],
    [6128, 6137],
    [6624, 6655],
  ], // Khmer
  Mong: [
    [6144, 6145],
    [6148, 6148],
    [6150, 6169],
    [6176, 6264],
    [6272, 6314],
    [71264, 71276],
  ], // Mongolian
  Limb: [
    [6400, 6430],
    [6432, 6443],
    [6448, 6459],
    [6464, 6464],
    [6468, 6479],
  ], // Limbu
  Tale: [
    [6480, 6509],
    [6512, 6516],
  ], // Tai_Le
  Talu: [
    [6528, 6571],
    [6576, 6601],
    [6608, 6618],
    [6622, 6623],
  ], // New_Tai_Lue
  Bugi: [
    [6656, 6683],
    [6686, 6687],
  ], // Buginese
  Lana: [
    [6688, 6750],
    [6752, 6780],
    [6783, 6793],
    [6800, 6809],
    [6816, 6829],
  ], // Tai_Tham
  Bali: [
    [6912, 6988],
    [6992, 7038],
  ], // Balinese
  Sund: [
    [7040, 7103],
    [7360, 7367],
  ], // Sundanese
  Batk: [
    [7104, 7155],
    [7164, 7167],
  ], // Batak
  Lepc: [
    [7168, 7223],
    [7227, 7241],
    [7245, 7247],
  ], // Lepcha
  Olck: [[7248, 7295]], // Ol_Chiki
  Brai: [[10240, 10495]], // Braille
  Glag: [
    [11264, 11359],
    [122880, 122886],
    [122888, 122904],
    [122907, 122913],
    [122915, 122916],
    [122918, 122922],
  ], // Glagolitic
  Tfng: [
    [11568, 11623],
    [11631, 11632],
    [11647, 11647],
  ], // Tifinagh
  Hani: [
    [11904, 11929],
    [11931, 12019],
    [12032, 12245],
    [12293, 12293],
    [12295, 12295],
    [12321, 12329],
    [12344, 12347],
    [13312, 19903],
    [19968, 40959],
    [63744, 64109],
    [64112, 64217],
    [94178, 94179],
    [94192, 94193],
    [131072, 173791],
    [173824, 177977],
    [177984, 178205],
    [178208, 183969],
    [183984, 191456],
    [194560, 195101],
    [196608, 201546],
    [201552, 205743],
  ], // Han
  Hira: [
    [12353, 12438],
    [12445, 12447],
    [110593, 110879],
    [110898, 110898],
    [110928, 110930],
    [127488, 127488],
  ], // Hiragana
  Kana: [
    [12449, 12538],
    [12541, 12543],
    [12784, 12799],
    [13008, 13054],
    [13056, 13143],
    [65382, 65391],
    [65393, 65437],
    [110576, 110579],
    [110581, 110587],
    [110589, 110590],
    [110592, 110592],
    [110880, 110882],
    [110933, 110933],
    [110948, 110951],
  ], // Katakana
  Yiii: [
    [40960, 42124],
    [42128, 42182],
  ], // Yi
  Lisu: [
    [42192, 42239],
    [73648, 73648],
  ], // Lisu
  Vaii: [[42240, 42539]], // Vai
  Bamu: [
    [42656, 42743],
    [92160, 92728],
  ], // Bamum
  Sylo: [[43008, 43052]], // Syloti_Nagri
  Phag: [[43072, 43127]], // Phags_Pa
  Saur: [
    [43136, 43205],
    [43214, 43225],
  ], // Saurashtra
  Kali: [
    [43264, 43309],
    [43311, 43311],
  ], // Kayah_Li
  Rjng: [
    [43312, 43347],
    [43359, 43359],
  ], // Rejang
  Java: [
    [43392, 43469],
    [43472, 43481],
    [43486, 43487],
  ], // Javanese
  Cham: [
    [43520, 43574],
    [43584, 43597],
    [43600, 43609],
    [43612, 43615],
  ], // Cham
  Tavt: [
    [43648, 43714],
    [43739, 43743],
  ], // Tai_Viet
  Mtei: [
    [43744, 43766],
    [43968, 44013],
    [44016, 44025],
  ], // Meetei_Mayek
  Linb: [
    [65536, 65547],
    [65549, 65574],
    [65576, 65594],
    [65596, 65597],
    [65599, 65613],
    [65616, 65629],
    [65664, 65786],
  ], // Linear_B
  Lyci: [[66176, 66204]], // Lycian
  Cari: [[66208, 66256]], // Carian
  Ital: [
    [66304, 66339],
    [66349, 66351],
  ], // Old_Italic
  Goth: [[66352, 66378]], // Gothic
  Perm: [[66384, 66426]], // Old_Permic
  Ugar: [
    [66432, 66461],
    [66463, 66463],
  ], // Ugaritic
  Xpeo: [
    [66464, 66499],
    [66504, 66517],
  ], // Old_Persian
  Dsrt: [[66560, 66639]], // Deseret
  Shaw: [[66640, 66687]], // Shavian
  Osma: [
    [66688, 66717],
    [66720, 66729],
  ], // Osmanya
  Osge: [
    [66736, 66771],
    [66776, 66811],
  ], // Osage
  Elba: [[66816, 66855]], // Elbasan
  Aghb: [
    [66864, 66915],
    [66927, 66927],
  ], // Caucasian_Albanian
  Vith: [
    [66928, 66938],
    [66940, 66954],
    [66956, 66962],
    [66964, 66965],
    [66967, 66977],
    [66979, 66993],
    [66995, 67001],
    [67003, 67004],
  ], // Vithkuqi
  Lina: [
    [67072, 67382],
    [67392, 67413],
    [67424, 67431],
  ], // Linear_A
  Cprt: [
    [67584, 67589],
    [67592, 67592],
    [67594, 67637],
    [67639, 67640],
    [67644, 67644],
    [67647, 67647],
  ], // Cypriot
  Armi: [
    [67648, 67669],
    [67671, 67679],
  ], // Imperial_Aramaic
  Palm: [[67680, 67711]], // Palmyrene
  Nbat: [
    [67712, 67742],
    [67751, 67759],
  ], // Nabataean
  Hatr: [
    [67808, 67826],
    [67828, 67829],
    [67835, 67839],
  ], // Hatran
  Phnx: [
    [67840, 67867],
    [67871, 67871],
  ], // Phoenician
  Lydi: [
    [67872, 67897],
    [67903, 67903],
  ], // Lydian
  Mero: [[67968, 67999]], // Meroitic_Hieroglyphs
  Merc: [
    [68000, 68023],
    [68028, 68047],
    [68050, 68095],
  ], // Meroitic_Cursive
  Khar: [
    [68096, 68099],
    [68101, 68102],
    [68108, 68115],
    [68117, 68119],
    [68121, 68149],
    [68152, 68154],
    [68159, 68168],
    [68176, 68184],
  ], // Kharoshthi
  Sarb: [[68192, 68223]], // Old_South_Arabian
  Narb: [[68224, 68255]], // Old_North_Arabian
  Mani: [
    [68288, 68326],
    [68331, 68342],
  ], // Manichaean
  Avst: [
    [68352, 68405],
    [68409, 68415],
  ], // Avestan
  Prti: [
    [68416, 68437],
    [68440, 68447],
  ], // Inscriptional_Parthian
  Phli: [
    [68448, 68466],
    [68472, 68479],
  ], // Inscriptional_Pahlavi
  Phlp: [
    [68480, 68497],
    [68505, 68508],
    [68521, 68527],
  ], // Psalter_Pahlavi
  Orkh: [[68608, 68680]], // Old_Turkic
  Hung: [
    [68736, 68786],
    [68800, 68850],
    [68858, 68863],
  ], // Old_Hungarian
  Rohg: [
    [68864, 68903],
    [68912, 68921],
  ], // Hanifi_Rohingya
  Yezi: [
    [69248, 69289],
    [69291, 69293],
    [69296, 69297],
  ], // Yezidi
  Sogo: [[69376, 69415]], // Old_Sogdian
  Sogd: [[69424, 69465]], // Sogdian
  Ougr: [[69488, 69513]], // Old_Uyghur
  Chrs: [[69552, 69579]], // Chorasmian
  Elym: [[69600, 69622]], // Elymaic
  Brah: [
    [69632, 69709],
    [69714, 69749],
    [69759, 69759],
  ], // Brahmi
  Kthi: [
    [69760, 69826],
    [69837, 69837],
  ], // Kaithi
  Sora: [
    [69840, 69864],
    [69872, 69881],
  ], // Sora_Sompeng
  Cakm: [
    [69888, 69940],
    [69942, 69959],
  ], // Chakma
  Mahj: [[69968, 70006]], // Mahajani
  Shrd: [[70016, 70111]], // Sharada
  Khoj: [
    [70144, 70161],
    [70163, 70209],
  ], // Khojki
  Mult: [
    [70272, 70278],
    [70280, 70280],
    [70282, 70285],
    [70287, 70301],
    [70303, 70313],
  ], // Multani
  Sind: [
    [70320, 70378],
    [70384, 70393],
  ], // Khudawadi
  Gran: [
    [70400, 70403],
    [70405, 70412],
    [70415, 70416],
    [70419, 70440],
    [70442, 70448],
    [70450, 70451],
    [70453, 70457],
    [70460, 70468],
    [70471, 70472],
    [70475, 70477],
    [70480, 70480],
    [70487, 70487],
    [70493, 70499],
    [70502, 70508],
    [70512, 70516],
  ], // Grantha
  Newa: [
    [70656, 70747],
    [70749, 70753],
  ], // Newa
  Tirh: [
    [70784, 70855],
    [70864, 70873],
  ], // Tirhuta
  Sidd: [
    [71040, 71093],
    [71096, 71133],
  ], // Siddham
  Modi: [
    [71168, 71236],
    [71248, 71257],
  ], // Modi
  Takr: [
    [71296, 71353],
    [71360, 71369],
  ], // Takri
  Ahom: [
    [71424, 71450],
    [71453, 71467],
    [71472, 71494],
  ], // Ahom
  Dogr: [[71680, 71739]], // Dogra
  Wara: [
    [71840, 71922],
    [71935, 71935],
  ], // Warang_Citi
  Diak: [
    [71936, 71942],
    [71945, 71945],
    [71948, 71955],
    [71957, 71958],
    [71960, 71989],
    [71991, 71992],
    [71995, 72006],
    [72016, 72025],
  ], // Dives_Akuru
  Nand: [
    [72096, 72103],
    [72106, 72151],
    [72154, 72164],
  ], // Nandinagari
  Zanb: [[72192, 72263]], // Zanabazar_Square
  Soyo: [[72272, 72354]], // Soyombo
  Pauc: [[72384, 72440]], // Pau_Cin_Hau
  Bhks: [
    [72704, 72712],
    [72714, 72758],
    [72760, 72773],
    [72784, 72812],
  ], // Bhaiksuki
  Marc: [
    [72816, 72847],
    [72850, 72871],
    [72873, 72886],
  ], // Marchen
  Gonm: [
    [72960, 72966],
    [72968, 72969],
    [72971, 73014],
    [73018, 73018],
    [73020, 73021],
    [73023, 73031],
    [73040, 73049],
  ], // Masaram_Gondi
  Gong: [
    [73056, 73061],
    [73063, 73064],
    [73066, 73102],
    [73104, 73105],
    [73107, 73112],
    [73120, 73129],
  ], // Gunjala_Gondi
  Maka: [[73440, 73464]], // Makasar
  Kawi: [
    [73472, 73488],
    [73490, 73530],
    [73534, 73561],
  ], // Kawi
  Xsux: [
    [73728, 74649],
    [74752, 74862],
    [74864, 74868],
    [74880, 75075],
  ], // Cuneiform
  Cpmn: [[77712, 77810]], // Cypro_Minoan
  Egyp: [[77824, 78933]], // Egyptian_Hieroglyphs
  Hluw: [[82944, 83526]], // Anatolian_Hieroglyphs
  Mroo: [
    [92736, 92766],
    [92768, 92777],
    [92782, 92783],
  ], // Mro
  Tnsa: [
    [92784, 92862],
    [92864, 92873],
  ], // Tangsa
  Bass: [
    [92880, 92909],
    [92912, 92917],
  ], // Bassa_Vah
  Hmng: [
    [92928, 92997],
    [93008, 93017],
    [93019, 93025],
    [93027, 93047],
    [93053, 93071],
  ], // Pahawh_Hmong
  Medf: [[93760, 93850]], // Medefaidrin
  Plrd: [
    [93952, 94026],
    [94031, 94087],
    [94095, 94111],
  ], // Miao
  Tang: [
    [94176, 94176],
    [94208, 100343],
    [100352, 101119],
    [101632, 101640],
  ], // Tangut
  Nshu: [
    [94177, 94177],
    [110960, 111355],
  ], // Nushu
  Kits: [
    [94180, 94180],
    [101120, 101589],
  ], // Khitan_Small_Script
  Dupl: [
    [113664, 113770],
    [113776, 113788],
    [113792, 113800],
    [113808, 113817],
    [113820, 113823],
  ], // Duployan
  Sgnw: [
    [120832, 121483],
    [121499, 121503],
    [121505, 121519],
  ], // SignWriting
  Hmnp: [
    [123136, 123180],
    [123184, 123197],
    [123200, 123209],
    [123214, 123215],
  ], // Nyiakeng_Puachue_Hmong
  Toto: [[123536, 123566]], // Toto
  Wcho: [
    [123584, 123641],
    [123647, 123647],
  ], // Wancho
  Nagm: [[124112, 124153]], // Nag_Mundari
  Mend: [
    [124928, 125124],
    [125127, 125142],
  ], // Mende_Kikakui
  Adlm: [
    [125184, 125259],
    [125264, 125273],
    [125278, 125279],
  ], // Adlam
  Zyyy: [
    [0, 64],
    [91, 96],
    [123, 169],
    [171, 185],
    [187, 191],
    [215, 215],
    [247, 247],
    [697, 735],
    [741, 745],
    [748, 767],
    [884, 884],
    [894, 894],
    [901, 901],
    [903, 903],
    [1541, 1541],
    [1548, 1548],
    [1563, 1563],
    [1567, 1567],
    [1600, 1600],
    [1757, 1757],
    [2274, 2274],
    [2404, 2405],
    [3647, 3647],
    [4053, 4056],
    [4347, 4347],
    [5867, 5869],
    [5941, 5942],
    [6146, 6147],
    [6149, 6149],
    [7379, 7379],
    [7393, 7393],
    [7401, 7404],
    [7406, 7411],
    [7413, 7415],
    [7418, 7418],
    [8192, 8203],
    [8206, 8292],
    [8294, 8304],
    [8308, 8318],
    [8320, 8334],
    [8352, 8384],
    [8448, 8485],
    [8487, 8489],
    [8492, 8497],
    [8499, 8525],
    [8527, 8543],
    [8585, 8587],
    [8592, 9254],
    [9280, 9290],
    [9312, 10239],
    [10496, 11123],
    [11126, 11157],
    [11159, 11263],
    [11776, 11869],
    [12272, 12283],
    [12288, 12292],
    [12294, 12294],
    [12296, 12320],
    [12336, 12343],
    [12348, 12351],
    [12443, 12444],
    [12448, 12448],
    [12539, 12540],
    [12688, 12703],
    [12736, 12771],
    [12832, 12895],
    [12927, 13007],
    [13055, 13055],
    [13144, 13311],
    [19904, 19967],
    [42752, 42785],
    [42888, 42890],
    [43056, 43065],
    [43310, 43310],
    [43471, 43471],
    [43867, 43867],
    [43882, 43883],
    [64830, 64831],
    [65040, 65049],
    [65072, 65106],
    [65108, 65126],
    [65128, 65131],
    [65279, 65279],
    [65281, 65312],
    [65339, 65344],
    [65371, 65381],
    [65392, 65392],
    [65438, 65439],
    [65504, 65510],
    [65512, 65518],
    [65529, 65532],
    [65792, 65794],
    [65799, 65843],
    [65847, 65855],
    [65936, 65948],
    [66000, 66044],
    [66273, 66299],
    [113824, 113827],
    [118608, 118723],
    [118784, 119029],
    [119040, 119078],
    [119081, 119142],
    [119146, 119162],
    [119171, 119172],
    [119180, 119209],
    [119214, 119274],
    [119488, 119507],
    [119520, 119539],
    [119552, 119638],
    [119648, 119672],
    [119808, 119892],
    [119894, 119964],
    [119966, 119967],
    [119970, 119970],
    [119973, 119974],
    [119977, 119980],
    [119982, 119993],
    [119995, 119995],
    [119997, 120003],
    [120005, 120069],
    [120071, 120074],
    [120077, 120084],
    [120086, 120092],
    [120094, 120121],
    [120123, 120126],
    [120128, 120132],
    [120134, 120134],
    [120138, 120144],
    [120146, 120485],
    [120488, 120779],
    [120782, 120831],
    [126065, 126132],
    [126209, 126269],
    [126976, 127019],
    [127024, 127123],
    [127136, 127150],
    [127153, 127167],
    [127169, 127183],
    [127185, 127221],
    [127232, 127405],
    [127462, 127487],
    [127489, 127490],
    [127504, 127547],
    [127552, 127560],
    [127568, 127569],
    [127584, 127589],
    [127744, 128727],
    [128732, 128748],
    [128752, 128764],
    [128768, 128886],
    [128891, 128985],
    [128992, 129003],
    [129008, 129008],
    [129024, 129035],
    [129040, 129095],
    [129104, 129113],
    [129120, 129159],
    [129168, 129197],
    [129200, 129201],
    [129280, 129619],
    [129632, 129645],
    [129648, 129660],
    [129664, 129672],
    [129680, 129725],
    [129727, 129733],
    [129742, 129755],
    [129760, 129768],
    [129776, 129784],
    [129792, 129938],
    [129940, 129994],
    [130032, 130041],
    [917505, 917505],
    [917536, 917631],
  ], // Common
  Zzzz: [[65533, 65533]],
};

export function getScriptPredictor(
  replaceWhitespace: boolean = true,
  replacePunctuation: boolean = true,
  replaceDigits: boolean = true,
): (sent: string) => ScoredScript {
  // Create a map of code points to script names
  const histMap: Map<number, Set<string>> = new Map();

  for (const [key, ranges] of Object.entries(SCRIPT_RANGES)) {
    for (const [start, end] of ranges) {
      for (let ordinal = start; ordinal <= end; ordinal++) {
        if (!histMap.has(ordinal)) {
          histMap.set(ordinal, new Set());
        }
        histMap.get(ordinal)!.add(key);
      }
    }
  }

  // Helper function to check if a character is whitespace
  const isWhitespace = (char: string): boolean => /\s/.test(char);

  // Helper function to check if a character is punctuation
  const isPunctuation = (char: string): boolean =>
    /[!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~]/.test(char);

  // Helper function to check if a character is a digit
  const isDigit = (char: string): boolean => /\d/.test(char);

  return (sent: string): ScoredScript => {
    // Filter out characters based on settings
    const filteredText = sent
      .split("")
      .filter((char) => {
        if (replaceWhitespace && isWhitespace(char)) return false;
        if (replacePunctuation && isPunctuation(char)) return false;
        if (replaceDigits && isDigit(char)) return false;
        return true;
      })
      .join("");

    if (filteredText.length === 0) {
      return [null, 0, { details: null, tie: null, interval: null }];
    }

    // Count characters by script
    const scriptCount: Map<string, number> = new Map();

    for (const char of filteredText) {
      const ordinal = char.codePointAt(0)!;
      const scripts = histMap.get(ordinal) || new Set(["Zzzz"]);

      for (const script of scripts) {
        scriptCount.set(script, (scriptCount.get(script) || 0) + 1);
      }
    }

    // Convert to sorted object for details
    const sortedScores: Record<string, number> = {};
    for (const [script, count] of scriptCount.entries()) {
      sortedScores[script] = count / filteredText.length;
    }

    // Find the script with maximum score
    let maxScore = 0;
    let maxScript: string | null = null;

    for (const [script, count] of scriptCount.entries()) {
      const score = count / filteredText.length;
      if (score > maxScore) {
        maxScore = score;
        maxScript = script;
      }
    }

    // Sort scores for details
    const sortedEntries = Object.entries(sortedScores).sort(
      (a, b) => b[1] - a[1],
    );
    const sortedDetails: Record<string, number> =
      Object.fromEntries(sortedEntries);

    // Calculate interval and check for ties
    if (sortedEntries.length > 1) {
      const secondScore = sortedEntries[1][1];
      const interval = maxScore - secondScore;
      return [
        maxScript,
        maxScore,
        {
          details: sortedDetails,
          tie: interval === 0,
          interval: interval,
        },
      ];
    }

    return [
      maxScript,
      maxScore,
      {
        details: sortedDetails,
        tie: false,
        interval: 1,
      },
    ];
  };
}

export function separateScript(sent: string): Record<string, string> {
  const result: Record<string, string[]> = {};

  for (const char of sent) {
    const codePoint = char.codePointAt(0)!;

    for (const [script, ranges] of Object.entries(SCRIPT_RANGES)) {
      for (const [start, end] of ranges) {
        if ((start <= codePoint && codePoint <= end) || char === " ") {
          if (!result[script]) {
            result[script] = [];
          }
          result[script].push(char);
          break;
        }
      }
    }
  }

  // Filter out empty values and spaces, convert arrays to strings
  const filtered: Record<string, string> = {};
  for (const [key, value] of Object.entries(result)) {
    const joined = value.join("");
    if (joined && joined.trim()) {
      filtered[key] = joined;
    }
  }

  return filtered;
}

// Test functions
export function testPredictScript(): void {
  const predictor = getScriptPredictor();

  const tests: [string, [string | null, number]][] = [
    ["this is a latin script.", ["Latn", 1.0]],
    ["isso é escrita latina 1234", ["Latn", 1.0]],
    ["এটি বাংলা লিপি", ["Beng", 1.0]],
    ["นี่คืออักษรไทย", ["Thai", 1.0]],
    [
      "자미로콰이 Jamiroquai는 영국의 애시드 재즈 밴드이다 자미로콰이는 년대 초반 런던에서 활발하게 일어난 애시드 재즈",
      ["Hang", 0.8148148148148148],
    ],
    ["이어지는기사  에서그점  에관해알려줄것  입니다", ["Hang", 1.0]],
    ["12345", [null, 0]],
    ["   ", [null, 0]],
    ["", [null, 0]],
  ];

  for (const [input, expected] of tests) {
    const result = predictor(input);
    console.assert(
      result[0] === expected[0] && Math.abs(result[1] - expected[1]) < 0.0001,
      `Test failed for "${input}"\nExpected: ${expected}\nGot: [${result[0]}, ${result[1]}]`,
    );
  }
}

export function testSeparateScript(): void {
  const sent = "Hello Salut سلام 你好 こんにちは שלום مرحبا";
  const detected = separateScript(sent);

  const groundTruth: Record<string, string> = {
    Latn: "Hello Salut     ",
    Hebr: "     שלום ",
    Arab: "  سلام    مرحبا",
    Hani: "   你好   ",
    Hira: "    こんにちは  ",
  };

  for (const key of Object.keys(groundTruth)) {
    console.assert(
      key in detected,
      `Error: '${key}' script not found in detected scripts.`,
    );

    const detectedTokens = detected[key]
      .split(" ")
      .map((x) => x.trim())
      .filter((x) => x.length > 0);
    const groundTruthTokens = groundTruth[key]
      .split(" ")
      .map((x) => x.trim())
      .filter((x) => x.length > 0);

    console.assert(
      JSON.stringify(detectedTokens.sort()) ===
        JSON.stringify(groundTruthTokens.sort()),
      `Error: Tokens for key '${key}' do not match.`,
    );
  }
}