GreasyFork Search

To search scripts using Google Search
目前為 2023-09-17 提交的版本，檢視最新版本。
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// ==UserScript==
// @name         GreasyFork Search
// @namespace    http://tampermonkey.net/
// @version      0.6.2
// @description  To search scripts using Google Search
// @author       CY Fung
// @match        https://greasyfork.org/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=greasyfork.org
// @require      https://fastly.jsdelivr.net/npm/[email protected]/dist/jstat.min.js
// @grant        none
// @license MIT
// ==/UserScript==



(() => {



    function jacobi(a) {
        var n = a.length;
        var trial = n*n*2;
        var e = jStat.identity(n, n);
        var ev = [];
        var i, j, p, q, maxim, s;
        let vaildResult = false;
        outer: while (trial-- > 0) {
            maxim = a[0][1];
            p = 0;
            q = 1;
            for (i = 0; i < n; i++) {
                for (j = 0; j < n; j++) {
                    if (i != j) {
                        let t = Math.abs(a[i][j]);
                        if (maxim < t) {
                            maxim = t;
                            p = i;
                            q = j
                        }
                    }
                }
            }

            s = jStat.identity(n, n);

            let tanValue = 2 * a[p][q] / (a[p][p] - a[q][q]);

            let cosTwoTheta = Math.sqrt(1 / (1 + tanValue * tanValue));
            let cosTheta = Math.sqrt(.5 * (1 + cosTwoTheta));
            let sinTheta = Math.sqrt(.5 * (1 - cosTwoTheta));

            s[p][p] = cosTheta;
            s[p][q] = -sinTheta;
            s[q][p] = sinTheta;
            s[q][q] = cosTheta;

            e = jStat.multiply(e, s);
            a = jStat.multiply(jStat.multiply(jStat.transpose(s), a), s);

            for (i = 0; i < n; i++) {
                for (j = i + 1; j < n; j++) {
                    if (Math.abs(a[i][j]) > .0004) {
                        continue outer;
                    }
                }
            }

            vaildResult = true;
            break;
        }
        if (!vaildResult) {
            console.warn("The matrix is not symmetric.")
            return null;
        }
        for (i = 0; i < n; i++) ev.push(a[i][i]);
        //returns both the eigenvalue and eigenmatrix
        return [e, ev];
    }



    function getVN(A) {
        // normalized the matrix values such that det(A) will be a finite value close to 1.0
        // vn = sqrt( ( column_vector_1 ^2 + column_vector_2 ^2 + ... + column_vector_n ^2 ) / n )
        let vn = 0;
        const AT = jStat.transpose(A);
        let N = AT.length;
        for (let i = 0; i < N; i++) {
            vn += jStat.dot(AT[i], AT[i]);
        }
        vn = Math.sqrt(vn / N);
        return vn;
    }

    function subtractLambdaFromDiagonal(matrix, lambda) {
        // A - lambda I
        return matrix.map((row, rowIndex) => row.map((val, colIndex) => rowIndex === colIndex ? val - lambda : val));
    }


    function eigenvalueNewton(A, lambda0) {
        const N = A.length;
        const epsilon = 1e-5; // epsilon is applied on the normalized scale of lambda
        const maxTrial = 8;

        function f(lambda) {
            return jStat.det(subtractLambdaFromDiagonal(A, lambda));
        }

        function fPrime(lambda) {
            return (f(lambda + epsilon) - f(lambda)) / epsilon;
        }

        let x_k = lambda0;
        let positiveSign = 0;
        let negativeSign = 0;
        for (let i = 0; i < maxTrial; i++) {
            const fx = f(x_k);
            const fxPrime = fPrime(x_k);
            const diff = fx / fxPrime;
            if (isNaN(diff)) return x_k; // ignore f/f'
            const x_k1 = x_k - diff;
            if ((diff > 0 ? diff : -diff) < epsilon) {
                return x_k1;
            }
            x_k = x_k1;
            if (fx > 0) positiveSign = 1;
            else if (fx < 0) negativeSign = 1;
        }
        return positiveSign && negativeSign ? x_k : lambda0; // avoid diverging iterations
    }

    function vectorNorm(v) {
        // Math.sqrt(v dot v), same as jStat.norm(jStat.transpose(v))
        let s = 0;
        for (const k of v) s += k[0] * k[0];
        return Math.sqrt(s);
    }

    function isUnitVector(v, tol = 0.01) {
        // Check if it is likely a unit vector
        let s = 0;
        for (const k of v) {
            s += k[0] * k[0];
            if (s > 1 + tol) return false;
        }
        return s > 1 - tol;
    }

    jStat.jacobiOri = jStat.jacobi;
    // https://www.statskingdom.com/pca-calculator.html
    jStat.jacobi = function (C) {

        const vn = getVN(C);
        C = jStat.multiply(C, 1 / vn);
        let r1 = jacobi(C);
        // let r0 = JSON.parse(JSON.stringify(r1))
        // r0[1] = r0[1].map(v => vn * v);
        let A = C;
        let eigenvectors = r1[0];
        let eigenvalues = r1[1];
        const iterationCount = 4;

        for (let i = 0; i < eigenvalues.length; i++) {
            let q, m;
            q = jStat.transpose(eigenvectors[i]);
            if (!isUnitVector(q)) break;
            eigenvalues[i] = eigenvalueNewton(A, eigenvalues[i]); // refine eigenvalues obtained in jacobiOri

            // inverse power method (A-lambda I) y_k = b_{k-1}
            // b_k = y_k / norm(y_k)
            let M = subtractLambdaFromDiagonal(A, eigenvalues[i]);
            for (let j = 0; j < iterationCount; j++) {
                m = jStat.transpose(jStat.gauss_elimination(M, q));
                m = jStat.multiply(m, 1 / vectorNorm(m))
                if (!isUnitVector(m)) break; // avoid Inf / NaN error
                q = m;
            }
            eigenvectors[i] = jStat.transpose(q);

        }
        r1[1] = r1[1].map(v => vn * v);
        return r1;
    };



})();


jStat.PCA = function PCA(X) {
    var m = X.length;
    var n = X[0].length;
    var i = 0;
    var j, temp1;
    var u = [];
    var D = [];
    var result = [];
    var temp2 = [];
    var Y = [];
    var Bt = [];
    var B = [];
    var C = [];
    var V = [];
    var Vt = [];
    for (i = 0; i < m; i++) {
        u[i] = jStat.sum(X[i]) / n;
    }
    for (i = 0; i < n; i++) {
        B[i] = [];
        for (j = 0; j < m; j++) {
            B[i][j] = X[j][i] - u[j];
        }
    }
    B = jStat.transpose(B);
    for (i = 0; i < m; i++) {
        C[i] = [];
        for (j = 0; j < m; j++) {
            C[i][j] = (jStat.dot([B[i]], [B[j]])) / (n - 1);
        }
    }
    result = jStat.jacobi(C);
    V = result[0];
    D = result[1];

    Vt = jStat.transpose(V);


    let vd = [];
    for (i = 0; i < D.length; i++) {
        vd[i] = {
            Vt: Vt[i],
            D: D[i],
            k: D[i] * D[i]
        };
    }

    vd.sort((a, b) => {
        return b.k - a.k
    })

    Vt = vd.map(e => e.Vt);
    D = vd.map(e => e.D);



    V = null;


    Bt = jStat.transpose(B);

    let pcs_11 = [];
    let pt_11 = [1, 1];
    for (i = 0; i < m; i++) {


        pcs_11[i] = jStat.dot([Vt[i]], [pt_11]);
        if (pcs_11[i] < 0) Vt[i] = jStat.multiply(Vt[i], -1);
        pcs_11[i] = jStat.dot([Vt[i]], [pt_11]);
    }





    for (i = 0; i < m; i++) {
        Y[i] = [];
        for (j = 0; j < Bt.length; j++) {
            Y[i][j] = jStat.dot([Vt[i]], [Bt[j]]);
        }
    }
    return [X, D, Vt, Y];
};

(function () {
    'use strict';

    let input = document.querySelector('form input[name="q"]');
    if (!(input instanceof HTMLInputElement)) return;
    let form = input.closest('form');
    if (!(form instanceof HTMLFormElement)) return;


    let locales = [...document.querySelectorAll('select#language-selector-locale > option')].map(x => x.value)

    document.head.appendChild(document.createElement('style')).textContent = `


    @keyframes rs1tmAnimation {
        0% {
            background-position-x: 3px;
        }
        100% {
            background-position-x: 4px;
        }
    }

    form.rs1tm{
        position: fixed;
        top:-300px;
        left:-300px;
        width: 1px;
        height: 1px;
        contain: strict;
        display: flex;
        overflow: hidden;
        animation: rs1tmAnimation 1ms linear 1ms 1 normal forwards;
    }

    `
    document.addEventListener('animationstart', (evt) => {

        if (evt.animationName === 'rs1tmAnimation') {
            const target = evt.target;
            target && target.parentNode && target.remove();
        }

    }, true);

    window.callback947 = function (rainijpolynomialRegressionJs) {
        if (!rainijpolynomialRegressionJs) return;
        const { PolynomialFeatures, PolynomialRegressor, RegressionError } = rainijpolynomialRegressionJs;
        if (!PolynomialFeatures || !PolynomialRegressor || !RegressionError) return;

        console.log(rainijpolynomialRegressionJs)
    }

    form.addEventListener('submit', function (evt) {

        try {


            let form = evt.target;
            if (!(form instanceof HTMLFormElement)) return;
            let input = form.querySelector('input[name="q"]');
            if (!(input instanceof HTMLInputElement)) return;

            if (form.classList.contains('rs1tm')) return;

            let value = input.value;
            const lang = document.documentElement.lang || '';

            let useLang = false;


            let u = 0;
            let isGoogleSearch = false;

            let sites = [];

            const split = value.split(/\s+/);
            let forceLang = 'all';
            let reformedSplit = [];
            for (const s of split) {

                if (!isGoogleSearch && /^[a-z][a-z0-9_-]{2,}(\.[a-z][a-z0-9_-]{2,})*(\.[a-z-]{2,4})+$/.test(s)) {
                    sites.push(s);
                } else if (s === 'js') {
                    forceLang = 'js'; reformedSplit.push(s);
                } else if (s === 'css') {
                    forceLang = 'css'; reformedSplit.push(s);
                } else if (s === 'user.js') {
                    forceLang = 'js';
                } else if (s === 'user.css') {
                    forceLang = 'css';
                } else if (s === '"js"') {
                    reformedSplit.push('js');
                } else if (s === '"css"') {
                    reformedSplit.push('css');
                } else if (u === 0 && s === 'g') {
                    isGoogleSearch = true;
                } else if (locales.indexOf(s) >= 0 || s === lang) {
                    useLang = s;
                } else {
                    reformedSplit.push(s);
                }
                u++;
            }
            console.log(sites)

            value = reformedSplit.join(' ')

            let onlySite = '';

            if (sites.length === 1 && sites[0]) {
                onlySite = sites[0];
            }

            /*
              if (!isGoogleSearch && onlySite && /\.\w+\.\w+/.test(onlySite)) {
                  alert('Greasy Fork only lists eTLD+1.');
                      evt.preventDefault();
                  evt.stopImmediatePropagation();
                  evt.stopPropagation();
                  return;
              }
              */


            if (isGoogleSearch && value) {
                let q = value.replace('g ', '');

                let m = "-inurl%3A%22%2Fusers%2F%22+-inurl%3A%22%2Fdiscussions%22-inurl%3A%22%2Fstats%22+-inurl%3A%22%2Ffeedback%22+-inurl%3A%22%2Fcode%22+-inurl%3A%22q%3D%22+-inurl%3A%22%2Fby-site%2F%22+inurl%3A%22%2Fscripts%2F%22+site%3Agreasyfork.org";



                let lr = useLang ? `&lr=lang_${useLang}` : '';
                evt.preventDefault();
                evt.stopImmediatePropagation();
                evt.stopPropagation();
                location.href = `https://www.google.com/search?q=${encodeURIComponent(q)}+${m}${lr}`

            } else if (!isGoogleSearch && (value || onlySite)) {


                let newForm = document.createElement('form');
                newForm.className = 'rs1tm';
                const copyAttr = (x) => {
                    let t = form.getAttribute(x);
                    if (typeof t === 'string') newForm.setAttribute(x, t);
                }
                copyAttr('action');
                copyAttr('accept-charset');
                copyAttr('method');
                newForm.innerHTML = `<input name="q" type="hidden" value="" /><input name="site" type="hidden" /><input name="language" type="hidden" value="all" /><input name="sort" type="hidden" />`


                const nq = newForm.querySelector('input[name="q"]');
                const language = newForm.querySelector('input[name="language"]');
                const site = newForm.querySelector('input[name="site"]');
                const sort = newForm.querySelector('input[name="sort"]');

                value = value.replace(/\s+/g, ' ');
                site.value = onlySite;

                if (form.getAttribute('action') === `/${lang}/scripts` && useLang && useLang !== lang) {
                    form.setAttribute('action', `/${useLang}/scripts`)
                }


                if (site.value === '') site.remove();

                nq.value = value;

                language.value = forceLang;

                if (language.value === '') language.remove();


                sort.value = 'updated';

                let sorting = document.querySelector('#script-list-sort');
                if (sorting) {
                    let sorts1 = {
                        nil: 0,
                        daily_installs: 0,
                        total_installs: 0,
                        ratings: 0,
                        created: 0,
                        updated: 0,
                        name: 0
                    }
                    let sorts2 = {
                        daily_installs: 0,
                        total_installs: 0,
                        ratings: 0,
                        created: 0,
                        updated: 0,
                        name: 0
                    }
                    const allOptions = sorting.querySelectorAll('.list-option');
                    const sorts = allOptions.length === 6 ? (sorts2) : (sorts1);
                    const keys = Object.keys(sorts)

                    if (allOptions.length === keys.length) {


                        for (const key of keys) {
                            let e = `.list-option:not(.list-current) a[href$="sort=${key}"]`
                            if (key === 'nil') {
                                e = `.list-option:not(.list-current) a[href]:not([href*="sort="])`
                                e = sorting.querySelector(e)
                            } else {
                                e = sorting.querySelector(e)
                            }

                            if (e) {
                                sorts[key] = 1;
                            }

                        }



                        let p = Object.entries(sorts).filter(r => !r[1])
                        if (p.length === 1) {
                            sort.value = p[0][0]
                        }

                    }

                }




                if (sort.value === '') sort.remove();

                evt.preventDefault();
                evt.stopImmediatePropagation();
                evt.stopPropagation();

                form.parentNode.insertBefore(newForm, form);
                newForm.submit();
                Promise.resolve().then(() => {
                    newForm.remove();
                })


            } else {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                evt.stopPropagation();
            }

        } catch (e) {
            console.log(e);

            evt.preventDefault();
            evt.stopImmediatePropagation();
            evt.stopPropagation();
        }

    })

    // Your code here...
})();

(() => {

    function prettyMatrix(A) {
        let w = '';
        for (let i = 0; i < A.length; i++) {
            for (let j = 0; j < A[i].length; j++) {
                w += A[i][j].toFixed(4) + '\t'
            }
            w += '\n\t';
        }
        return '[\n\t' + w.trim() + '\n]';
    }


    setTimeout(() => {

        if ((location.search.includes('sort=updated') || location.search.includes('sort=created')) && location.pathname.endsWith('/scripts')) { } else return;
        let items = document.querySelectorAll('[data-script-id][data-script-daily-installs][data-script-total-installs]');

        let data = [...items].map(e => ({
            id: parseInt(e.getAttribute('data-script-id')),
            daily: parseInt(e.getAttribute('data-script-daily-installs')),
            total: parseInt(e.getAttribute('data-script-total-installs'))
        })).filter(e => e.id && !isNaN(e.daily) && !isNaN(e.total));

        const daily = data.map(d => d.daily);
        const total = data.map(d => d.total);
        dailyMean = jStat.mean(daily);
        dailySD = jStat.stdev(daily, true);
        totalMean = jStat.mean(total);
        totalSD = jStat.stdev(total, true);

        const uDaily = jStat.multiply(jStat.subtract(daily, dailyMean), 1 / dailySD);
        const uTotal = jStat.multiply(jStat.subtract(total, totalMean), 1 / totalSD);

        let dataA = data.map((d, i) => [uDaily[i], uTotal[i]]);

        // dataA = dataA.slice(0, 4)
        // console.log(dataA)

        let matrixA = jStat.transpose(dataA)


        const result = jStat.PCA(matrixA);
        const [X, D, Vt, Y] = result;



        let q = null;
        let qSet = null;
        if (location.search.includes('q=')) {
            q = new URLSearchParams(location.search)
            q = q.get('q')

        }

        function makeQA(q) {
            let qSet = new Set();
            q.replace(/_-/g, ' ').replace(/\b\S+\b/g, (_) => {
                qSet.add(_.toLowerCase())
            });
            return qSet;
        }

        if (q) {
            qSet = makeQA(q);
        }

        let mr = new Map();
        let u = 0;
        for (const d of data) {
            d.pcaScore = Y[0][u++];
            let elm = document.querySelector(`[data-script-id="${d.id}"]`);
            if (elm) {

                let order = 0;
                order -= Math.floor(d.pcaScore * 1000);

                let u1 = 0, u2 = 0;

                if (qSet) {

                    const pSet = qSet;

                    let elp = elm.querySelector('.script-link')
                    if (elp) {
                        let t = elp.textContent

                        t.replace(/_-/g, ' ').replace(/\b\S+\b/g, (_) => {
                            if (pSet.has(_.toLowerCase())) u1++;
                        });


                    }



                    let elq = elm.querySelector('.script-description')

                    if (elq) {
                        let t = elq.textContent

                        t.replace(/_-/g, ' ').replace(/\b\S+\b/g, (_) => {
                            if (pSet.has(_.toLowerCase())) u2++;
                        });


                    }


                }


                if (u1 && u2) order -= 30000
                else if (u1) order -= 20000
                else if (u2) order -= 10000


                mr.set(d.id, order);
                // elm.style.order = order;
                // elm.parentNode.style.display = 'flex';


                // elm.parentNode.style.flexDirection = 'column';


            }
        }


        let lists = [...new Set([...document.querySelectorAll(`[data-script-id]`)].map(p => p.parentNode))];
        for (const list of lists) {

            let m = [...list.childNodes].map(e => ({
                element: e,
                order: mr.get(e instanceof HTMLElement ? (+e.getAttribute('data-script-id') || '') : '') || 0
            }));

            m.sort((a, b) => {
                return Math.round(a.order - b.order)
            });
            let newNodes = m.map(e => e.element);

            list.replaceChildren(...newNodes);
        }


        // console.log(prettyMatrix(X))

        // console.log(prettyMatrix(Y))





    }, 300);



})();