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// ==UserScript==
// @name         美团券搜索
// @license      MIT
// @version      1.4
// @description  注意需要请求手机页面，先登录账户后，获取列表
// @author       Bingo95
// @match        https://offsiteact.meituan.com/web/hoae/collection_waimai_v8/index.html*
// @grant        none
// @namespace https://greasyfork.org/users/1312821
// @downloadURL https://update.greasyfork.icu/scripts/497642/%E7%BE%8E%E5%9B%A2%E5%88%B8%E6%90%9C%E7%B4%A2.user.js
// @updateURL https://update.greasyfork.icu/scripts/497642/%E7%BE%8E%E5%9B%A2%E5%88%B8%E6%90%9C%E7%B4%A2.meta.js
// ==/UserScript==

(function() {
    'use strict';

    // 创建UI元素
    function createUI() {
        // 创建搜索框
        const searchBox = document.createElement('input');
        searchBox.type = 'search';
        searchBox.placeholder = '输入商家名称搜索...';
        searchBox.style.cssText = `
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 40px;
            padding: 5px 15px;
            border: 1px solid #ccc;
            border-radius: 20px;
            z-index: 9999;
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        `;

        // 创建加载按钮
        const loadButton = document.createElement('button');
        loadButton.textContent = '加载更多';
        loadButton.style.cssText = `
            position: fixed;
            top: 40px;
            right: 20px;
            padding: 0 20px;
            height: 40px;
            border: none;
            border-radius: 20px;
            background: #FFC107;
            color: #fff;
            font-size: 16px;
            cursor: pointer;
            z-index: 9999;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        `;

        // 创建计数器
        const counter = document.createElement('div');
        counter.id = 'shop-counter';
        counter.style.cssText = `
            position: fixed;
            top: 40px;
            left: 20px;
            padding: 0 15px;
            height: 40px;
            line-height: 40px;
            font-size: 14px;
            color: #666;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            z-index: 9999;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        `;

        document.body.appendChild(searchBox);
        document.body.appendChild(loadButton);
        document.body.appendChild(counter);

        return { searchBox, loadButton, counter };
    }

    // 加载更多数据
function loadMoreData(loadButton) {
    let lastCount = 0;
    let sameCountTimes = 0;

    const loadInterval = setInterval(() => {
        const scrollHeight = document.documentElement.scrollHeight;
        window.scrollTo(0, scrollHeight);

        const currentCount = document.querySelectorAll('.index-module__poiCardContainer___L28Xd').length;

        // 如果连续3次数量没变化,认为加载完成
        if (currentCount === lastCount) {
            sameCountTimes++;
            if (sameCountTimes >= 3) {
                clearInterval(loadInterval);
                loadButton.disabled = true;
                loadButton.textContent = '加载完成';
                loadButton.style.background = '#ccc';
            }
        } else {
            sameCountTimes = 0;
            lastCount = currentCount;
        }
    }, 1000);
}
    // 搜索商家
    function searchShops(keyword) {
        const shops = document.querySelectorAll('.index-module__poiCardContainer___L28Xd');
        let visibleCount = 0;

        shops.forEach(shop => {
            const name = shop.querySelector('.name').textContent.trim();
            if (keyword && !name.toLowerCase().includes(keyword.toLowerCase())) {
                shop.style.display = 'none';
            } else {
                shop.style.display = 'block';
                visibleCount++;
            }
        });

        // 更新计数器
        const counter = document.getElementById('shop-counter');
        if (counter) {
            counter.textContent = `${visibleCount}/${shops.length}`;
        }
    }

    // 监听列表是否加载完成
    function observeListLoading(loadButton) {
        const observer = new MutationObserver((mutations) => {
            mutations.forEach(mutation => {
                const nodes = Array.from(mutation.addedNodes);
                nodes.forEach(node => {
                    if (node.nodeType === 1 && node.textContent.includes('没有更多了')) {
                        loadButton.disabled = true;
                        loadButton.textContent = '已加载完成';
                        loadButton.style.background = '#ccc';
                        observer.disconnect();
                        console.log('列表加载完成');
                    }
                });
            });
        });

        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    }

    // 初始化
    function init() {
        const { searchBox, loadButton, counter } = createUI();

        // 添加搜索事件
        searchBox.addEventListener('input', (e) => {
            searchShops(e.target.value.trim());
        });

        // 添加加载按钮事件
        loadButton.addEventListener('click', loadMoreData);

        // 监听列表加载状态
        observeListLoading(loadButton);

        // 初始计数
        searchShops('');
    }

    // 等待页面加载完成后执行
    if (document.readyState === 'complete') {
        init();
    } else {
        window.addEventListener('load', init);
    }
})();