// ==UserScript==
// @name         Генератор хуйни
// @namespace    Генератор_хуйни
// @version      1.2
// @description  Создай хуйню!
// @author       Анонимус
// @include      *://2ch.*
// @icon         https://i.imgur.com/XK5x1Zr.png
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    for (const area of document.querySelectorAll('.postarea')) {
        const button = document.createElement('div');
        button.innerHTML = `<a style='user-select: none;'><strong>Насрать хуйни</strong></a>`;
        area.parentNode.insertBefore(button, area.nextSibling.nextSibling.nextSibling);
        button.onclick = () => {
            for (const field of document.querySelectorAll('#shampoo')) field.value += paragraph();
        };
    }
})();

function choice(chances) {
    const roll = Math.random();
    return chances.find(i => roll <= i[1])[0]
}

function word() {
    const lenght = 5 + Math.round(Math.random() * 7);

    let letter = choice(chancesForFirstLetter);
    let result = letter;

    for (let i = 0; i < lenght; i++) {
        const nextLetter = choice(chances[letter]);
        result += nextLetter;
        letter = nextLetter;
    }

    return result;
}
function sentence() { return Array.apply(null, Array(2 + Math.round(Math.random() * 7))).map(word).join(' ') }
function paragraph() { return Array.apply(null, Array(2 + Math.round(Math.random() * 5))).map(sentence).map(s => s.charAt(0).toUpperCase() + s.slice(1)).join('. ') + '. ' }

// Шансы в формате {'буква': [('буква после', %шанс буквы% + %предыдущий шанс буквы%)]}

const chances = {
    'а': [['б', 0.02535211], ['в', 0.090140834], ['г', 0.10985914], ['д', 0.12112674], ['е', 0.15211265], ['ж', 0.16901405], ['з', 0.23098586], ['и', 0.23661967], ['й', 0.24788727], ['к', 0.3042253], ['л', 0.3887323], ['м', 0.43661964], ['н', 0.5887323], ['п', 0.6197182], ['р', 0.6760562], ['с', 0.74929565], ['т', 0.8422534], ['у', 0.853521], ['ф', 0.8563379], ['х', 0.87323934], ['ц', 0.912676], ['ч', 0.93239427], ['ш', 0.94084495], ['щ', 0.94366187], ['ю', 0.96338016], ['я', 1], ],
    'б': [['а', 0.084337346], ['е', 0.18072289], ['и', 0.22891566], ['к', 0.25301206], ['л', 0.3373494], ['н', 0.36144578], ['о', 0.57831323], ['р', 0.6385542], ['с', 0.68674695], ['у', 0.7831325], ['х', 0.7951807], ['щ', 0.8433734], ['ъ', 0.8554216], ['ы', 0.9638553], ['ю', 0.9879517], ['я', 1], ],
    'в': [['а', 0.1965812], ['в', 0.20512821], ['е', 0.37606838], ['з', 0.3888889], ['и', 0.47008547], ['к', 0.47863248], ['л', 0.52136755], ['м', 0.5256411], ['н', 0.59401715], ['о', 0.78632486], ['р', 0.8034189], ['с', 0.8376069], ['т', 0.86752146], ['у', 0.880342], ['ш', 0.897436], ['ы', 1], ],
    'г': [['а', 0.09782608], ['д', 0.11956521], ['е', 0.17391303], ['и', 0.27173913], ['л', 0.32608694], ['м', 0.3369565], ['н', 0.34782606], ['о', 0.8369564], ['р', 0.96739113], ['с', 0.9782607], ['у', 1], ],
    'д': [['а', 0.16666663], ['в', 0.18939391], ['е', 0.4393938], ['ж', 0.44696954], ['и', 0.5757574], ['к', 0.58333313], ['л', 0.61363614], ['н', 0.712121], ['о', 0.81818163], ['п', 0.8257574], ['р', 0.84848464], ['с', 0.8712119], ['у', 0.9545452], ['х', 0.96212095], ['ы', 0.97727245], ['ь', 0.9848482], ['я', 1], ],
    'е': [['а', 0.007481297], ['б', 0.009975063], ['в', 0.024937656], ['г', 0.057356607], ['д', 0.11471321], ['е', 0.12718204], ['ж', 0.13965087], ['з', 0.16708228], ['и', 0.17206982], ['й', 0.21446383], ['к', 0.2668329], ['л', 0.36907732], ['м', 0.436409], ['н', 0.640898], ['о', 0.65087306], ['п', 0.6558606], ['р', 0.73566115], ['с', 0.8628433], ['т', 0.93017495], ['ф', 0.9351625], ['х', 0.9576064], ['ц', 0.9601001], ['ч', 0.98753154], ['ш', 0.9950128], ['я', 1], ],
    'ж': [['а', 0.125], ['д', 0.40000004], ['е', 0.62500006], ['и', 0.8000001], ['н', 1], ],
    'з': [['а', 0.20792076], ['б', 0.23762372], ['в', 0.31683165], ['г', 0.3465346], ['д', 0.4653465], ['ж', 0.47524747], ['и', 0.51485145], ['к', 0.5346534], ['л', 0.5544554], ['м', 0.60396034], ['н', 0.78217816], ['о', 0.8514851], ['р', 0.88118804], ['у', 0.930693], ['ы', 0.96039593], ['ь', 0.9702969], ['я', 1], ],
    'и': [['а', 0.010025063], ['б', 0.01754386], ['в', 0.07268172], ['г', 0.08270678], ['д', 0.097744375], ['е', 0.21303257], ['ж', 0.2180451], ['з', 0.2706767], ['и', 0.31328323], ['й', 0.36591482], ['к', 0.39097747], ['л', 0.41604012], ['м', 0.4761905], ['н', 0.56390977], ['о', 0.5764411], ['п', 0.5814536], ['р', 0.63408524], ['с', 0.69172937], ['т', 0.7694236], ['у', 0.7744361], ['ф', 0.7794486], ['х', 0.79949874], ['ц', 0.8070175], ['ч', 0.87969923], ['ш', 0.88471174], ['ю', 0.9072681], ['я', 1], ],
    'й': [['д', 0.05263158], ['м', 0.10526316], ['н', 0.42105263], ['р', 0.5263158], ['с', 0.68421054], ['т', 0.84210527], ['ч', 0.8947368], ['ш', 1], ],
    'к': [['а', 0.15189874], ['в', 0.15822786], ['е', 0.1772152], ['и', 0.3417722], ['л', 0.386076], ['м', 0.39240512], ['н', 0.41139245], ['о', 0.70886093], ['р', 0.7531647], ['с', 0.79113936], ['т', 0.9177216], ['у', 0.993671], ['ц', 1], ],
    'л': [['а', 0.100529104], ['г', 0.10582011], ['е', 0.28042325], ['и', 0.4656084], ['л', 0.50264543], ['н', 0.52380943], ['о', 0.69312155], ['с', 0.69841254], ['у', 0.73015857], ['ь', 0.9153437], ['ю', 0.9365077], ['я', 1], ],
    'м': [['а', 0.16129029], ['в', 0.1693548], ['е', 0.37903214], ['и', 0.5403224], ['л', 0.54838693], ['м', 0.56451595], ['н', 0.61290306], ['о', 0.8306449], ['п', 0.862903], ['у', 0.9193546], ['ы', 1], ],
    'н': [['а', 0.13157901], ['г', 0.13684218], ['д', 0.13947375], ['е', 0.22368431], ['и', 0.47105262], ['к', 0.47631577], ['н', 0.56842107], ['о', 0.77368414], ['р', 0.7789473], ['с', 0.80789465], ['т', 0.85789466], ['у', 0.8736841], ['ф', 0.8763157], ['ц', 0.8789473], ['ч', 0.8815789], ['ы', 0.95526314], ['ь', 0.9605263], ['я', 1], ],
    'о': [['б', 0.060194183], ['в', 0.18834953], ['г', 0.27184469], ['д', 0.33980584], ['е', 0.36116508], ['ж', 0.38834953], ['з', 0.44466022], ['и', 0.4524272], ['й', 0.49902916], ['к', 0.5087379], ['л', 0.5572816], ['м', 0.64077675], ['н', 0.6912622], ['о', 0.7048544], ['п', 0.71650493], ['р', 0.7766991], ['с', 0.89902925], ['т', 0.9650487], ['ф', 0.9669904], ['х', 0.9708739], ['ц', 0.9825244], ['ч', 0.9864079], ['ш', 0.99029136], ['щ', 0.99417484], ['я', 1], ],
    'п': [['а', 0.024], ['е', 0.15200001], ['и', 0.16000001], ['л', 0.19200002], ['н', 0.20000002], ['о', 0.5279999], ['п', 0.54399985], ['р', 0.9279996], ['у', 0.9599996], ['ц', 0.96799964], ['ь', 0.9919996], ['я', 1], ],
    'р': [['а', 0.2835819], ['в', 0.29477593], ['г', 0.30596995], ['д', 0.3097013], ['е', 0.45149228], ['ж', 0.4626863], ['з', 0.46641764], ['и', 0.60820866], ['к', 0.61194], ['м', 0.6194027], ['н', 0.64179075], ['о', 0.8694025], ['с', 0.9104473], ['т', 0.92537266], ['у', 0.9477607], ['ч', 0.9514921], ['ш', 0.95895475], ['ы', 0.9813428], ['ь', 0.98507416], ['я', 1], ],
    'с': [['а', 0.030303031], ['б', 0.033333335], ['в', 0.04848485], ['д', 0.051515155], ['е', 0.09696971], ['и', 0.14242426], ['к', 0.26969695], ['л', 0.3363636], ['м', 0.3393939], ['н', 0.3515151], ['о', 0.46969688], ['п', 0.52727264], ['р', 0.53333324], ['с', 0.5878787], ['т', 0.87272704], ['у', 0.90303004], ['х', 0.92121184], ['ц', 0.92424214], ['ч', 0.92727244], ['ш', 0.93636334], ['ь', 0.94545424], ['я', 1], ],
    'т': [['а', 0.105263196], ['в', 0.21981433], ['е', 0.36532518], ['и', 0.5479877], ['к', 0.5603716], ['л', 0.56965953], ['м', 0.5758515], ['н', 0.6160992], ['о', 0.7368423], ['р', 0.80185777], ['с', 0.8359135], ['у', 0.8730652], ['ы', 0.88854504], ['ь', 0.9969042], ['я', 1], ],
    'у': [['а', 0.086538464], ['б', 0.09615385], ['г', 0.13461539], ['д', 0.22115386], ['е', 0.24038462], ['ж', 0.27884617], ['к', 0.28846157], ['л', 0.3269231], ['м', 0.37500003], ['н', 0.41346157], ['п', 0.4615385], ['р', 0.53846157], ['с', 0.6057693], ['т', 0.6923077], ['х', 0.7115385], ['ч', 0.82692313], ['ш', 0.8365385], ['щ', 0.91346157], ['ю', 1], ],
    'ф': [['а', 0.23076925], ['и', 0.61538464], ['л', 0.7692308], ['о', 0.84615386], ['с', 0.9230769], ['у', 1], ],
    'х': [['а', 0.10344827], ['е', 0.20689654], ['м', 0.2413793], ['н', 0.44827586], ['о', 0.89655167], ['р', 0.96551716], ['с', 1], ],
    'ц': [['а', 0.032258064], ['е', 0.29032257], ['и', 1], ],
    'ч': [['а', 0.15116279], ['е', 0.75581414], ['и', 0.8604653], ['н', 0.98837227], ['т', 1], ],
    'ш': [['а', 0.03448276], ['е', 0.34482756], ['и', 0.7586206], ['к', 0.8275861], ['л', 0.9310344], ['н', 1], ],
    'щ': [['а', 0.11538462], ['е', 0.61538464], ['и', 0.8846154], ['н', 0.923077], ['р', 0.96153855], ['ь', 1], ],
    'ъ': [['е', 1], ],
    'ы': [['в', 0.064935066], ['д', 0.077922076], ['е', 0.24675325], ['й', 0.37662336], ['к', 0.4025974], ['л', 0.45454544], ['м', 0.5324675], ['п', 0.5454545], ['р', 0.58441556], ['с', 0.6363636], ['т', 0.66233766], ['х', 0.90909094], ['ч', 0.935065], ['ш', 1], ],
    'ь': [['е', 0.040816326], ['з', 0.08163265], ['к', 0.14285713], ['н', 0.5918367], ['с', 0.67346936], ['т', 0.75510204], ['ч', 0.7755102], ['ш', 0.8163265], ['ю', 0.9795918], ['я', 1], ],
    'э': [['к', 0.3529412], ['л', 0.4117647], ['с', 0.47058824], ['т', 1], ],
    'ю': [['б', 0.03448276], ['д', 0.06896552], ['р', 0.13793103], ['т', 0.51724136], ['ч', 0.62068963], ['щ', 0.96551716], ['э', 1], ],
    'я': [['в', 0.04347826], ['д', 0.108695656], ['е', 0.21739131], ['м', 0.2826087], ['н', 0.32608694], ['с', 0.34782606], ['т', 0.7391304], ['х', 0.8260869], ['ш', 0.847826], ['ю', 0.95652163], ['я', 1], ],
    'ё': [['м', 0.14285715], ['н', 0.42857146], ['с', 0.5714286], ['т', 1], ],
}


const chancesForFirstLetter = [
    ['а', 0.018950438],
    ['б', 0.06268221],
    ['в', 0.15160352],
    ['г', 0.17346941],
    ['д', 0.20991257],
    ['е', 0.2230321],
    ['ж', 0.23032074],
    ['з', 0.25510207],
    ['и', 0.31195337],
    ['к', 0.3644315],
    ['л', 0.37317786],
    ['м', 0.41253644],
    ['н', 0.47667637],
    ['о', 0.54373175],
    ['п', 0.65451896],
    ['р', 0.71865886],
    ['с', 0.8556851],
    ['т', 0.9008746],
    ['у', 0.92565596],
    ['ф', 0.93586004],
    ['х', 0.9431487],
    ['ц', 0.94752187],
    ['ч', 0.9723032],
    ['ш', 0.97376096],
    ['э', 0.99708456],
    ['я', 1],
]