// ==UserScript==
// @name Linux.do 抽奖器
// @namespace http://linux.do/
// @version 1.0.3
// @description 在Linux.do平台上进行抽奖，支持文章切换时自动更新，以表格形式展示结果，包含用户头像和参与时间，支持时间范围选择
// @author PastKing
// @match https://www.linux.do/t/topic/*
// @match https://linux.do/t/topic/*
// @grant none
// @license MIT
// @icon https://cdn.linux.do/uploads/default/optimized/1X/3a18b4b0da3e8cf96f7eea15241c3d251f28a39b_2_32x32.png
// ==/UserScript==
(function () {
"use strict";
let uiElements = null;
// 创建UI元素
function createUI() {
const container = document.createElement("div");
container.style.cssText = `
background-color: #ffffff;
padding: 30px;
border-radius: 10px;
margin: 30px auto;
text-align: center;
max-width: 800px;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
font-family: Arial, sans-serif;
margin-bottom: 0 !important;
`;
const title = document.createElement("h2");
title.textContent = "🎉 Linux.do 抽奖器 - @PastKing";
title.style.cssText = `
color: #2c3e50;
margin-bottom: 25px;
font-weight: bold;
`;
const dateContainer = document.createElement("div");
dateContainer.style.cssText = `
display: flex;
justify-content: center;
align-items: center;
margin-bottom: 25px;
`;
const startDateTimeInput = document.createElement("input");
startDateTimeInput.type = "datetime-local";
startDateTimeInput.style.cssText = `
padding: 10px;
margin: 0 10px;
border: 1px solid #bdc3c7;
border-radius: 5px;
font-size: 14px;
`;
const endDateTimeInput = document.createElement("input");
endDateTimeInput.type = "datetime-local";
endDateTimeInput.style.cssText = startDateTimeInput.style.cssText;
dateContainer.appendChild(createLabel("开始时间："));
dateContainer.appendChild(startDateTimeInput);
dateContainer.appendChild(createLabel("结束时间："));
dateContainer.appendChild(endDateTimeInput);
const inputContainer = document.createElement("div");
inputContainer.style.cssText = `
display: flex;
justify-content: center;
align-items: center;
margin-bottom: 25px;
`;
const input = document.createElement("input");
input.type = "number";
input.min = "1";
input.placeholder = "抽取数量";
input.style.cssText = `
padding: 10px;
margin-right: 15px;
border: 1px solid #bdc3c7;
border-radius: 5px;
font-size: 14px;
width: 120px;
marginBottom: '0 !important'
`;
const button = document.createElement("button");
button.textContent = "开始抽奖";
button.style.cssText = `
padding: 10px 20px;
background-color: #3498db;
color: white;
border: none;
border-radius: 5px;
font-size: 16px;
cursor: pointer;
transition: background-color 0.3s;
`;
button.onmouseover = () => (button.style.backgroundColor = "#2980b9");
button.onmouseout = () => (button.style.backgroundColor = "#3498db");
inputContainer.appendChild(input);
inputContainer.appendChild(button);
const result = document.createElement("div");
container.appendChild(title);
container.appendChild(dateContainer);
container.appendChild(inputContainer);
container.appendChild(result);
return {
container,
input,
button,
result,
startDateTimeInput,
endDateTimeInput,
};
}
function createLabel(text) {
const label = document.createElement("label");
label.textContent = text;
label.style.cssText = `
font-size: 14px;
color: #34495e;
margin-right: 5px;
`;
return label;
}
// 格式化日期
function formatDate(dateString) {
const date = new Date(dateString);
return date.toLocaleString("zh-CN", {
year: "numeric",
month: "numeric",
day: "numeric",
hour: "2-digit",
minute: "2-digit",
});
}
// 获取候选人列表
async function getCandidateList(startDateTime, endDateTime) {
const topicId = window.location.pathname.split("/")[3];
let candidateList = [];
let nameList = new Set();
const start = startDateTime ? new Date(startDateTime) : null;
const end = endDateTime ? new Date(endDateTime) : null;
// 首先获取主题信息以确定总页数
const initialResponse = await fetch(`/t/${topicId}.json`);
const initialData = await initialResponse.json();
const totalPosts = initialData.posts_count;
const totalPages = Math.ceil(totalPosts / 20); // 每页20个帖子
const topicOwner = initialData.details.created_by.username;
// 更新进度显示
const progressDiv = document.createElement("div");
progressDiv.style.cssText = `
margin: 10px 0;
padding: 10px;
background-color: #f8f9fa;
border-radius: 5px;
`;
uiElements.result.appendChild(progressDiv);
// 分批处理页面
const batchSize = 5; // 每批处理的页面数
for (let page = 1; page <= totalPages; page += batchSize) {
const batchPromises = [];
// 创建这一批次的请求
for (let i = 0; i < batchSize && page + i <= totalPages; i++) {
const currentPage = page + i;
batchPromises.push(
fetch(`/t/${topicId}.json?page=${currentPage}`).then((response) =>
response.ok ? response.json() : null
)
);
}
// 等待这一批次的所有请求完成
const results = await Promise.all(batchPromises);
// 处理结果
results.forEach((result) => {
if (result && result.post_stream && result.post_stream.posts) {
result.post_stream.posts.forEach((post) => {
const postDate = new Date(post.created_at);
if ((start && postDate < start) || (end && postDate > end)) return;
const onlyName = post.username;
if (!nameList.has(onlyName) && onlyName !== topicOwner) {
const candidate = {
only_name: onlyName,
display_name: post.display_username,
post_number: post.post_number,
created_at: post.created_at,
avatar: post.avatar_template.replace("{size}", "90"),
};
candidateList.push(candidate);
nameList.add(onlyName);
}
});
}
});
// 更新进度
const progress = Math.min(
100,
Math.round(((page + batchSize - 1) / totalPages) * 100)
);
progressDiv.innerHTML = `正在加载数据... ${progress}% (${candidateList.length} 个候选人)`;
// 添加短暂延迟以避免请求过快
await new Promise((resolve) => setTimeout(resolve, 1000));
}
progressDiv.remove();
return candidateList;
}
// 执行抽奖
async function performLottery(count, startDateTime, endDateTime) {
uiElements.result.innerHTML =
'<p style="color: #3498db; font-weight: bold;">正在收集候选人数据...</p>';
const candidates = await getCandidateList(startDateTime, endDateTime);
if (candidates.length === 0) {
return { error: "在选定的时间范围内没有找到任何候选人。" };
}
if (count > candidates.length) {
return {
error: `抽奖人数不能多于唯一发帖人数。当前只有 ${candidates.length} 个符合条件的候选人。`,
};
}
const chosenPosts = [];
const winners = new Set();
while (winners.size < count && candidates.length > 0) {
const randomIndex = Math.floor(Math.random() * candidates.length);
const winner = candidates.splice(randomIndex, 1)[0];
if (!winners.has(winner.only_name)) {
winners.add(winner.only_name);
chosenPosts.push(winner);
}
}
return { winners: chosenPosts };
}
// 显示抽奖结果
function displayResults(results) {
uiElements.result.innerHTML =
'<h3 style="color: #2c3e50; margin-bottom: 20px;">🏆 抽奖结果 <button id="copyAllButton" style="padding: 5px 10px; background-color: #e67e22; color: white; border: none; border-radius: 5px; font-size: 14px; cursor: pointer;">一键复制全体中奖信息</button></h3>';
const copyAllButton = document.getElementById("copyAllButton");
copyAllButton.onclick = () => {
const winnerNames = results
.map((result) => `@${result.only_name}`)
.join(", ");
const currentDate = new Date().toLocaleString("zh-CN", {
year: "numeric",
month: "numeric",
day: "numeric",
hour: "2-digit",
minute: "2-digit",
second: "2-digit",
hour12: false,
});
const markdownText = `🎉📢 恭喜以下幸运用户成功中奖：\n ${winnerNames}\n\n📅 开奖日期：${currentDate}\n🎁 奖品信息：\n \n\n✨ 再次感谢所有参与者的热情支持！\n💫 未中奖的小伙伴也不要灰心，继续关注我们的后续活动哦~\n\n**请中奖用户及时关注私信**`;
navigator.clipboard.writeText(markdownText).then(
() => {
alert("全体中奖信息已复制到剪贴板！");
},
() => {
alert("复制失败，请手动复制。");
}
);
};
const table = document.createElement("table");
table.style.cssText = `
width: 100%;
border-collapse: separate;
border-spacing: 0;
border: 1px solid #e0e0e0;
border-radius: 8px;
overflow: hidden;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
`;
const headerRow = table.insertRow();
["序号", "头像", "用户名", "楼层", "参与时间", "独立中奖信息"].forEach(
(text) => {
const th = document.createElement("th");
th.textContent = text;
th.style.cssText = `
padding: 15px;
background-color: #f2f2f2;
color: #333;
font-weight: bold;
text-align: left;
border-bottom: 2px solid #ddd;
`;
headerRow.appendChild(th);
}
);
results.forEach((result, index) => {
const row = table.insertRow();
row.style.backgroundColor = index % 2 === 0 ? "#ffffff" : "#f9f9f9";
const cellIndex = row.insertCell();
cellIndex.textContent = index + 1;
cellIndex.style.cssText = `
padding: 12px 15px;
text-align: center;
font-weight: bold;
color: #3498db;
`;
const cellAvatar = row.insertCell();
const avatar = document.createElement("img");
avatar.src = result.avatar.startsWith("http")
? result.avatar
: `https://linux.do${result.avatar}`;
avatar.style.cssText = `
width: 40px;
height: 40px;
border-radius: 50%;
display: block;
margin: 0 auto;
border: 2px solid #3498db;
`;
cellAvatar.appendChild(avatar);
cellAvatar.style.padding = "12px 15px";
const cellUsername = row.insertCell();
const userLink = document.createElement("a");
userLink.href = `https://linux.do/u/${encodeURIComponent(
result.only_name
)}/summary`;
userLink.textContent = `@${result.only_name}`;
userLink.target = "_blank";
userLink.style.cssText = `
text-decoration: none;
color: #3498db;
font-weight: bold;
transition: color 0.3s;
`;
userLink.onmouseover = () => (userLink.style.color = "#2980b9");
userLink.onmouseout = () => (userLink.style.color = "#3498db");
cellUsername.appendChild(userLink);
cellUsername.style.cssText = `
padding: 12px 15px;
text-align: left;
`;
const cellNumber = row.insertCell();
cellNumber.textContent = `#${result.post_number}`;
cellNumber.style.cssText = `
padding: 12px 15px;
text-align: center;
color: #7f8c8d;
`;
const cellTime = row.insertCell();
cellTime.textContent = formatDate(result.created_at);
cellTime.style.cssText = `
padding: 12px 15px;
text-align: center;
color: #7f8c8d;
`;
const cellCopy = row.insertCell();
const copyButton = document.createElement("button");
copyButton.textContent = "复制信息";
copyButton.style.cssText = `
padding: 5px 10px;
background-color: #2ecc71;
color: white;
border: none;
border-radius: 5px;
font-size: 14px;
cursor: pointer;
`;
copyButton.onclick = () => {
const currentDate = new Date().toLocaleDateString("zh-CN", {
year: "numeric",
month: "long",
day: "numeric",
hour: "2-digit",
minute: "2-digit",
second: "2-digit",
});
const markdownText = `🎉🎊 热烈祝贺 @${result.only_name}！成功中奖！🏆\n\n📅 中奖日期: ${currentDate}\n🔢 幸运楼层: #${result.post_number}\n🎁 获得奖品:\n - (具体奖品信息请查看活动详情)\n\n🙏 感谢你的热情参与和支持！\n🌟 希望你能继续关注我们的后续活动哦~`;
navigator.clipboard.writeText(markdownText).then(
() => {
alert("信息已复制到剪贴板！");
},
() => {
alert("复制失败，请手动复制。");
}
);
};
cellCopy.appendChild(copyButton);
cellCopy.style.cssText = `
padding: 12px 15px;
text-align: center;
`;
});
uiElements.result.appendChild(table);
}
// 主函数
function main() {
uiElements = createUI();
// 插入UI到指定位置
const targetElement = document.querySelector("#post_1 > div.row");
if (targetElement) {
targetElement.parentNode.insertBefore(
uiElements.container,
targetElement.nextSibling
);
// 强制移除目标元素的 marginBottom
function removeMarginBottom() {
targetElement.style.setProperty("margin-bottom", "0", "important");
const computedStyle = window.getComputedStyle(targetElement);
if (computedStyle.getPropertyValue("margin-bottom") !== "0px") {
targetElement.style.setProperty("margin-bottom", "-9px", "important");
}
}
removeMarginBottom();
const observer = new MutationObserver(removeMarginBottom);
observer.observe(targetElement, {
attributes: true,
attributeFilter: ["style"],
});
setInterval(removeMarginBottom, 100);
} else {
console.error("无法找到目标插入位置");
return;
}
uiElements.button.addEventListener("click", async () => {
const count = parseInt(uiElements.input.value);
if (isNaN(count) || count < 1) {
uiElements.result.innerHTML =
'<p style="color: #e74c3c; font-weight: bold;">请输入有效的抽取数量。</p>';
return;
}
const startDateTime = uiElements.startDateTimeInput.value
? new Date(uiElements.startDateTimeInput.value)
: null;
const endDateTime = uiElements.endDateTimeInput.value
? new Date(uiElements.endDateTimeInput.value)
: null;
if (startDateTime && endDateTime && startDateTime > endDateTime) {
uiElements.result.innerHTML =
'<p style="color: #e74c3c; font-weight: bold;">开始时间不能晚于结束时间。</p>';
return;
}
uiElements.button.disabled = true;
uiElements.button.textContent = "抽奖中...";
uiElements.button.style.backgroundColor = "#bdc3c7";
uiElements.result.innerHTML =
'<p style="color: #3498db; font-weight: bold;">正在抽奖，请稍候...</p>';
const lotteryResults = await performLottery(
count,
startDateTime,
endDateTime
);
if (lotteryResults.error) {
uiElements.result.innerHTML = `<p style="color: #e74c3c; font-weight: bold;">${lotteryResults.error}</p>`;
} else {
displayResults(lotteryResults.winners);
}
uiElements.button.disabled = false;
uiElements.button.textContent = "开始抽奖";
uiElements.button.style.backgroundColor = "#3498db";
});
}
// 运行主函数
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", main);
} else {
main();
}
})();
