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AtCoder TestCase Extension

AtCoderテストケースへのリンクを追加します

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// ==UserScript==
// @name           AtCoder TestCase Extension
// @namespace      tatsumack
// @version        1.0.8
// @description    AtCoderテストケースへのリンクを追加します
// @author         tatsumack
// @license        MIT
// @supportURL     https://github.com/tatsumack/atcoder-testcase-extension/issues
// @match          https://atcoder.jp/contests/*/submissions/*
// ==/UserScript==

(function (callback) {
    var script = document.createElement("script");
    script.setAttribute("src", "//code.jquery.com/jquery-3.3.1.min.js");
    script.addEventListener('load', function() {
        var script = document.createElement("script");
        script.textContent = "(" + callback.toString() + ")(jQuery.noConflict(true));";
        document.body.appendChild(script);
    }, false);
    document.body.appendChild(script);
})(function ($) {
    const url = location.href;
    const contestName = getContestName();
    const cacheDataKey = "atcoder-testcase-" + contestName;
    const cacheFetchedAtKey = "atcoder-test-case-last-fetched-at-" + contestName;
    const cacheMin = 10;

    function onSuccess(data) {
        if (data.status != "success") return;
        localStorage.setItem(cacheDataKey, JSON.stringify(data));

        var problemId = getProbremId();
        var content = JSON.parse(data.content);
        draw(content[problemId].in, content[problemId].out, content[problemId].ext);
    }

    function draw(inUrl, outUrl, ext) {
        if (!inUrl || !outUrl) return;

        $("#main-container > div.row > div:nth-child(2) > div:nth-last-child(1) > table > tbody > tr > td:nth-child(1)").each(function () {
            var testCaseName = $(this).text();
            var fileName = getFileName(testCaseName, ext);
            $(this).append(" [ <a href='" + inUrl + "?preview=" + fileName.in + "'>in</a> / <a href='" + outUrl + "?preview=" + fileName.out + "'>out</a> ]");
        });
    }

    function getFileName(testCaseName, ext) {
        let inFile = testCaseName;
        let outFile = testCaseName;
        if (testCaseName.indexOf(".txt") === -1 && ext !== 'none') {
            inFile += ext === '' ? ".in" : '.' + ext;
            outFile += ext === '' ? ".out" : '.' + ext;
        }
        return {in: inFile, out: outFile};
    }

    function getContestName() {
        return url.split("/")[4];
    }

    function getProbremId() {
        return $("#main-container > div.row > div:nth-child(2) > div:nth-child(9) > table > tbody > tr:nth-child(2) > td > a").first().text().slice(0, 1).toUpperCase();
    }

    function main() {
        const data = localStorage.getItem(cacheDataKey);
        const lastFetchedAt = localStorage.getItem(cacheFetchedAtKey);
        if (data && lastFetchedAt && new Date().getTime() < Number(lastFetchedAt) + cacheMin * 60 * 1000) {
            onSuccess(JSON.parse(data));
            return;
        }

        $.ajax({
            url: "https://script.google.com/macros/s/AKfycbyUlYoF05ux7M1jBRnXwYkV9SjJIL9MNlHbWiB_eFiE93_91Hs/exec?contest=" + contestName,
            dataType: "json",
            type: "get",
            crossDomain: true,
            success: onSuccess
        });
        localStorage.setItem(cacheFetchedAtKey, new Date().getTime().toString());
    }

    main();

});

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