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NUSMods Export Planner

Export and import NUS mods

当前为 2025-03-05 提交的版本，查看 最新版本。

// ==UserScript==
// @name         NUSMods Export Planner
// @namespace    http://tampermonkey.net/
// @version      2025-03-03
// @description  Export and import NUS mods
// @author       Someone
// @match        https://nusmods.com/planner
// @icon         https://www.google.com/s2/favicons?sz=64&domain=nusmods.com
// @run-at       document-end
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';
    var plannerFunctions = window.plannerFunctions = {};

    plannerFunctions.importPlanner = function () {
        if (confirm("Are you sure to overwrite the existing planner with new data?")) {
            var i0 = document.createElement('input');
            var f0;
            i0.type = 'file';
            i0.onchange = e => {
                f0 = e.target.files[0];
                try {
                    var reader = new FileReader();
                    reader.readAsText(f0,'UTF-8');
                    reader.onload = readerEvent => {
                        var content = readerEvent.target.result;
                        localStorage.setItem("persist:planner", content);
                        window.location.reload();
                    }
                } catch (error) {
                    console.error(error);
                    alert(error);
                }
            }
            i0.click();
        }
    }

    plannerFunctions.exportPlanner = function () {
        var plannerObj = localStorage.getItem("persist:planner");
        function download(content, fileName, contentType) {
            var a = document.createElement("a");
            var file = new Blob([content], {type: contentType});
            a.href = URL.createObjectURL(file);
            a.download = fileName;
            a.click();
        }
        download(plannerObj, 'planner.json', 'text/json');
    }

    plannerFunctions.clearPlanner = function () {
        if (confirm("Are you ABSOLUTELY SURE that you want to remove all existing data from the planner?")) {
            localStorage.removeItem("persist:planner");
            window.location.reload();
        }
    }

    // https://stackoverflow.com/a/61511955
    function waitForElm(selector) {
        return new Promise(resolve => {
            if (document.querySelector(selector)) {
                return resolve(document.querySelector(selector));
            }
            const observer = new MutationObserver(mutations => {
                if (document.querySelector(selector)) {
                    observer.disconnect();
                    resolve(document.querySelector(selector));
                }
            });
            // If you get "parameter 1 is not of type 'Node'" error, see https://stackoverflow.com/a/77855838/492336
            observer.observe(document.body, {
                childList: true,
                subtree: true
            });
        });
    }

    window.addEventListener('load', async function () {
        let c = document.createElement("ul");
        c.classList += 'R2Qt7mz2 list-unstyled';
        c.innerHTML = '<li><button type="button" class="btn btn-block btn-outline-primary" onclick="plannerFunctions.exportPlanner();">Export Planner</button></li><li><button onclick="plannerFunctions.importPlanner();" class="btn btn-block btn-outline-primary">Import Planner</button></li><li> <button onclick="plannerFunctions.clearPlanner();" class="btn btn-block btn-outline-primary" type="button">Clear Planner</button></li>';
        const h = await waitForElm('header');
        h.after(c);
    });
})();