豆瓣小组管理助手

DoubanGroupPlus.user.js

// ==UserScript==
// @name         豆瓣小组管理助手
// @namespace    https://anl.gg/
// @version      2025-03-26
// @description  改进豆瓣小组管理功能，保存用户申请加入群组的备注
// @author       greatghoul
// @match        https://www.douban.com/group/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=douban.com
// @require      https://code.jquery.com/jquery-3.7.1.min.js
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_getValues
// @grant        GM_listValues
// ==/UserScript==

/* global $ */

(function() {
    'use strict';

    const cache = {};

    const PAGE_PATTERNS = {
        GROUP_REQUEST: /^\/group\/(.*?)\/requests\/$/,
        GROUP_SUB_PAGE: /^\/group\/(.*?)\/.*$/,
    };

    function log(...args) {
        console.log('[豆瓣小组助手]', ...args);
    }

    function matchPage(pathPattern) {
        const pathname = window.location.pathname;
        return pathname.match(pathPattern);
    }

    function parseUserId(url) {
        return url.match(/people\/([^/]+)\/?/)[1];
    }

    function saveUserNote(userId, groupId, userNote) {
        log('Saving user note:', { userId, groupId, userNote });
        const userKey = `users.${userId}`;
        const user = GM_getValue(userKey, {})
        user.groupRequests = user.groupRequests || {};
        user.groupRequests[groupId] = userNote;
        GM_setValue(userKey, user);
    }

    function handleGroupRequestBackup(groupId) {
        $('.group-request-list > li').has(':checked').each((i, request) => {
            const $request = $(request);
            const userLink = $request.find('.group-request-userface > a').attr('href');
            const userId = parseUserId(userLink);
            const userNote = $request.find('.group-request-content').text().trim();
            saveUserNote(userId, groupId, userNote);
        });
        initGroupRequestReader();
    }

    function initGroupReqeustSaver() {
        const match = matchPage(PAGE_PATTERNS.GROUP_REQUEST);
        if (!match) return;

        const groupId = match[1];
        $('<button />', {
            type: 'button',
            text: '保存备注',
            title: '将入群申请备注到用户信息，方便日后查看',
            click: () => handleGroupRequestBackup(groupId)
        }).appendTo('.list-opt');
    }

    function prepareUserNote(groupId, userLink) {
        const $userLink = $(userLink);
        const userId = parseUserId($userLink.attr('href'));
        const userKey = `users.${userId}`;
        const user = cache[userKey] || GM_getValue(userKey, {});
        const { groupRequests = {} } = user;
        const requestNote = groupRequests[groupId];
        if (requestNote) {
            $userLink.attr('title', requestNote);
            $userLink.toggleClass('anl__user_note', true);
        }
    }

    function initGroupRequestReader() {
        const match = matchPage(PAGE_PATTERNS.GROUP_SUB_PAGE);
        if (!match) return;

        const groupId = match[1];
        $('a[href^="https://www.douban.com/people"]:not(.anl__user_note)').each((i, userLink) => {
            prepareUserNote(groupId, userLink);
        });
    }

    function init() {
        initGroupReqeustSaver();
        initGroupRequestReader();
    }

    init();
})();