查找指定ASIN，自然位与广告位分别定位，支持搜索历史记录保存及备注，优化了停止条件
// ==UserScript==
// @name Amazon KW Asin located
// @namespace http://tampermonkey.net/
// @version 5.0
// @description 查找指定ASIN，自然位与广告位分别定位，支持搜索历史记录保存及备注，优化了停止条件
// @author ciaociao
// @match https://www.amazon.com/*
// @icon https://www.amazon.com/favicon.ico
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
const MAX_EXTRA_PAGES = 5;
let searchState = { natural: null, sponsored: null, foundOne: false, pagesAfterFirstFind: 0 };
let targetASIN = '';
let currentPage = 1;
// 创建输入和控制面板
const panelHTML = `
<div style="position:fixed; top:10px; right:10px; background:white; border:1px solid #ccc; padding:10px; z-index:10000;">
<label for="asinSelect">选择ASIN: </label>
<select id="asinSelect" style="width:200px;"><option value="">-- 选择一个ASIN --</option></select><br>
<label for="asinInput">输入ASIN: </label>
<input type="text" id="asinInput" style="width:150px;" placeholder="输入ASIN" /><br>
<label for="asinLabel">备注: </label>
<input type="text" id="asinLabel" style="width:150px;" placeholder="输入备注 (可选)" /><br>
<button id="startSearch">开始搜索</button>
<button id="clearStorage">清空历史</button>
</div>`;
document.body.insertAdjacentHTML('beforeend', panelHTML);
// 加载保存的 ASIN
loadSavedASINs();
document.getElementById('startSearch').addEventListener('click', () => {
targetASIN = document.getElementById('asinInput').value.trim() || document.getElementById('asinSelect').value.trim();
if (!targetASIN) {
alert('请输入有效的ASIN！');
return;
}
const label = document.getElementById('asinLabel').value.trim() || '未命名';
saveASIN(targetASIN, label);
resetSearchState();
searchASIN();
});
document.getElementById('clearStorage').addEventListener('click', () => {
localStorage.removeItem('savedASINs');
loadSavedASINs();
alert('已清空所有保存的ASIN！');
});
function resetSearchState() {
searchState = { natural: null, sponsored: null, foundOne: false, pagesAfterFirstFind: 0 };
currentPage = 1;
}
function searchASIN() {
const productDivs = document.querySelectorAll('div[data-asin]');
let naturalPosition = 0; // 自然位计数
let sponsoredPosition = 0; // 广告位计数
for (const div of productDivs) {
const asin = div.getAttribute('data-asin');
// 修改广告位判断逻辑，更准确地识别广告商品
const isSponsored = div.querySelector('[data-component-type="sp-sponsored-result"], span.puis-label-popover-default, span.s-label-popover-default') !== null;
const hasAddToCart = div.querySelector('span.a-button-inner button.a-button-text');
if (asin && hasAddToCart) {
if (isSponsored) {
sponsoredPosition++; // 广告位计数
if (asin === targetASIN) {
searchState.sponsored = { page: currentPage, position: sponsoredPosition };
}
} else {
naturalPosition++; // 自然位计数
if (asin === targetASIN) {
searchState.natural = { page: currentPage, position: naturalPosition };
}
}
}
}
updateSearchState();
}
function updateSearchState() {
if (searchState.natural || searchState.sponsored) {
if (!searchState.foundOne) {
searchState.foundOne = true;
searchState.pagesAfterFirstFind = 0;
} else {
searchState.pagesAfterFirstFind++;
}
}
if (searchState.pagesAfterFirstFind >= MAX_EXTRA_PAGES || (searchState.natural && searchState.sponsored)) {
showResults();
} else {
goToNextPage();
}
}
function goToNextPage() {
const nextPageButton = document.querySelector('a.s-pagination-next');
if (nextPageButton) {
currentPage++;
nextPageButton.click();
setTimeout(searchASIN, 4000);
} else {
showResults();
}
}
function showResults() {
let message = `搜索完成：\n`;
message += searchState.natural ? `自然位: 第 ${searchState.natural.page} 页，第 ${searchState.natural.position} 个位置\n` : '自然位: 未找到\n';
message += searchState.sponsored ? `广告位: 第 ${searchState.sponsored.page} 页，第 ${searchState.sponsored.position} 个位置\n` : '广告位: 未找到\n';
alert(message);
}
function saveASIN(asin, label) {
const savedASINs = JSON.parse(localStorage.getItem('savedASINs') || '[]');
if (!savedASINs.some(item => item.asin === asin)) {
savedASINs.push({ asin, label });
localStorage.setItem('savedASINs', JSON.stringify(savedASINs));
loadSavedASINs();
}
}
function loadSavedASINs() {
const savedASINs = JSON.parse(localStorage.getItem('savedASINs') || '[]');
const asinSelect = document.getElementById('asinSelect');
asinSelect.innerHTML = '<option value="">-- 选择一个ASIN --</option>';
savedASINs.forEach(({ asin, label }) => {
const option = document.createElement('option');
option.value = asin;
option.textContent = `${asin} - ${label}`;
asinSelect.appendChild(option);
});
}
})();