// ==UserScript==
// @name:zh-CN      Steam折扣截止日期查询
// @name            Steam_Discount_Query
// @namespace       https://blog.chrxw.com
// @supportURL      https://blog.chrxw.com/scripts.html
// @contributionURL https://afdian.com/@chr233
// @version         1.5
// @description:zh-CN  查询折扣截止日期
// @description     Query when the discounts expired
// @author          Chr_
// @match           https://store.steampowered.com/wishlist/*
// @license         AGPL-3.0
// @icon            https://blog.chrxw.com/favicon.ico
// @grant           GM_addStyle
// ==/UserScript==
(async () => {
"use strict";
const g_cache = {};
//初始化
const t = setInterval(() => {
for (let ele of document.querySelectorAll("div.Panel div[data-index]")) {
addQueryButton(ele);
}
}, 1000);
const matchAppId = /app\/(\d+)/;
//添加按钮
function addQueryButton(element) {
const oldBtn = element.querySelector("button.sdq_listbtns");
if (oldBtn) {
return;
}
const href = element.querySelector("a")?.getAttribute("href");
const match = href.match(matchAppId);
if (!match) {
return;
}
const appId = match[1];
const btn = document.createElement("button");
btn.addEventListener(
"click",
(e) => {
displaySaleEnds(appId, btn);
e.preventDefault();
},
false
);
btn.className = "sdq_listbtns";
btn.textContent = g_cache[appId] ?? "🔍";
if (btn.textContent.search(":") !== -1) {
btn.className += " sdq_listbtns_alert";
}
var inner = element.querySelector("div>div");
inner.appendChild(btn);
}
//显示折扣结束时间
async function displaySaleEnds(appId, ele) {
ele.enabled = false;
ele.className += " sdq_listbtns_show";
ele.textContent = "🔍……";
fetchSaleEnds(appId)
.then((endDate) => {
ele.textContent = endDate;
g_cache[appId] = endDate;
if (endDate.search(":") !== -1) {
ele.className += " sdq_listbtns_alert";
}
})
.catch((err) => {
let done = showAlert("网络错误", `<p>${err}</p>`, false);
setTimeout(() => {
done.Dismiss();
}, 2000);
dialog.Dismiss();
})
.finally(() => {
ele.enabled = true;
});
}
//读取折扣结束时间
function fetchSaleEnds(appId) {
const regSaleEnds = new RegExp(
/<p class="game_purchase_discount_countdown">(.+)<\/p>/,
""
);
const regDate = new RegExp(/\d+ 月 \d+ 日/, "");
const regTimestamp = new RegExp(
/InitDailyDealTimer\( \$DiscountCountdown, (\d+) \);/,
""
);
return new Promise((resolve, reject) => {
fetch(`https://store.steampowered.com/app/${appId}/?lang=schinese`, {
method: "GET",
credentials: "include",
})
.then(async (response) => {
if (response.ok) {
const html = await response.text();
const saleEnds = html.match(regSaleEnds)?.pop();
let endDate;
if (saleEnds) {
endDate = saleEnds.match(regDate)?.pop();
if (!endDate) {
const endsTimestamp = html.match(regTimestamp)?.pop();
const timestamp = parseInt(endsTimestamp) * 1000;
const date = new Date(timestamp);
if (date.getDate() === date.getDate()) {
endDate = `${date.getMonth() + 1
} 月 ${date.getDate()} 日 ${date
.getHours()
.toString()
.padStart(2, "0")}:${date
.getMinutes()
.toString()
.padStart(2, "0")}`;
} else {
endDate = "解析失败";
}
}
} else {
endDate = "未打折";
}
console.info(endDate);
resolve(endDate);
} else {
resolve("请求失败");
}
})
.catch((err) => {
reject(err);
});
});
}
//显示提示
function showAlert(title, text, succ = true) {
return ShowAlertDialog(`${succ ? "✅" : "❌"}${title}`, text);
}
})();
GM_addStyle(`
button.sdq_listbtns {
position: absolute;
z-index: 100;
padding: 1px;
right: 20px;
top: 20px;
}
div.wishlist_row > button.sdq_listbtns {
top: 35%;
right: 33%;
position: absolute;
}
button.sdq_listbtns_show,
div.wishlist_row:hover button.sdq_listbtns {
display: flex;
}
button.sdq_listbtns_alert {
color: red;
}
`);