MF-Contest-Draw/draw.html at main · MarioForeverCommunity/MF-Contest-Draw · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<title>抽签程序网页版</title>
<style>
  body { font-family: Arial, sans-serif; padding: 20px; max-width: 600px; margin: auto; background-image: url('background.png'); background-size: cover; background-position: center; background-attachment: fixed; }
  h1 { text-align: center; }
  h3 { margin: 15px 0 10px 0; }
  #orderList, #candidateList {
    border: 1px solid #ccc; padding: 8px; height: 160px; overflow-y: auto;
    background: #f9f9f9; white-space: pre-wrap;
  }
  #drawArea { margin-top: 16px; text-align: center; }
  #currentDraw { line-height: 36px; font-size: 30px; margin: 10px 0 4px 0; min-height: 30px; }
  button { margin: 10px 5px; padding: 8px 12px; font-size: 16px; }
  table { width: 100%; border-collapse: collapse; margin-top: 10px; }
  th, td { border: 1px solid #000; padding: 8px; text-align: center; }
</style>
</head>
<body>

<h1 id="pageTitle">抽签程序</h1>

<label>选择名单文件 (.txt)：</label>
<input type="file" id="fileInput" accept=".txt" />
<br />
<button id="loadBtn">加载名单文件</button>
<button id="nextBatchBtn" disabled>下一批</button>
<button id="exportBtn" disabled>导出抽签结果</button>
<label><input type="checkbox" id="allowRepeatsCheckbox" />允许重复抽取</label>
<br />
<label style="margin-top:15px;">选择背景音乐 (可选)：</label>
<input type="file" id="bgmInput" accept="audio/*" />
<audio id="bgmPlayer" loop></audio>

<div style="display: flex; gap: 20px;">
  <div style="flex: 1;">
    <h3>待抽顺序</h3>
    <div id="orderList"></div>
  </div>
  <div style="flex: 1;">
    <h3>待抽名单</h3>
    <div id="candidateList"></div>
  </div>
</div>

<div id="drawArea" style="display:none;">
  <div>当前抽取：<span id="currentOrder"></span></div>
  <div id="currentDraw"></div>
  <button id="startStopBtn">开始抽签</button>
  <button id="undoBtn" disabled>撤销</button>
</div>

<table id="resultTable" style="display:none;">
  <thead>
    <tr><th>序号</th><th>抽签项</th><th>抽中人员</th></tr>
  </thead>
  <tbody></tbody>
</table>

<script>
  const fileInput = document.getElementById('fileInput');
  const musicInput = document.getElementById('musicInput');
  const loadBtn = document.getElementById('loadBtn');
  const nextBatchBtn = document.getElementById('nextBatchBtn');
  const exportBtn = document.getElementById('exportBtn');
  const orderListDiv = document.getElementById('orderList');
  const candidateListDiv = document.getElementById('candidateList');
  const drawArea = document.getElementById('drawArea');
  const currentOrderSpan = document.getElementById('currentOrder');
  const currentDrawDiv = document.getElementById('currentDraw');
  const startStopBtn = document.getElementById('startStopBtn');
  const undoBtn = document.getElementById('undoBtn');
  const resultTable = document.getElementById('resultTable');
  const tbody = resultTable.querySelector('tbody');
  const pageTitle = document.getElementById('pageTitle');
  const bgmInput = document.getElementById('bgmInput');
  const bgmPlayer = document.getElementById('bgmPlayer');
  const allowRepeatsCheckbox = document.getElementById('allowRepeatsCheckbox');

  let batches = [];
  let baseTitle = '';
  let currentBatchIndex = 0;

  let orderList = [];
  let candidateList = [];
  let candidatePool = [];
  let assigned = [];
  let allAssigned = [];
  let drawIndex = 0;

  let rolling = false;
  let intervalId = null;

  let hasLoadedFile = false;

  window.onload = () => {
    nextBatchBtn.disabled = true;
    exportBtn.disabled = true;
  };

  bgmInput.onchange = () => {
    const bgmFile = bgmInput.files[0];
    if (bgmFile) {
      const url = URL.createObjectURL(bgmFile);
      bgmPlayer.src = url;
    } else {
      bgmPlayer.src = '';
    }
  };

  // 加载名单文件
  loadBtn.onclick = () => {
    if (hasLoadedFile) {
      const confirmReload = confirm('确定要加载名单吗？这将清空当前抽签数据（包括未导出的抽签结果）！');
      if (!confirmReload) return;
    }
    const file = fileInput.files[0];
    if (!file) {
      alert('请选择名单文件');
      return;
    }
    const reader = new FileReader();
    reader.onload = () => {
      parseFile(reader.result);
      if (batches.length === 0) {
        alert('未找到有效批次');
        return;
      }
      allAssigned.length = 0;  // 清空所有记录
      assigned.length = 0;
      drawIndex = 0;
      currentBatchIndex = 0;
      loadBatch(currentBatchIndex);
      nextBatchBtn.disabled = batches.length <= 1;
      exportBtn.disabled = allAssigned.length === 0;
      tbody.innerHTML = '';
      resultTable.style.display = 'none';
    };
    reader.readAsText(file, 'utf-8');
    hasLoadedFile = true;
  };

  // 解析名单文本
  function parseFile(text) {
    batches = [];
    const lines = text.split(/\r?\n/).map(l => l.trim()).filter(l => l.length > 0);

    if (lines.length === 0) {
      alert('文件为空');
      return;
    }

    baseTitle = lines[0];
    document.title = baseTitle;

    let batchIndexes = [];
    for(let i = 1; i < lines.length; i++) {
      if (/^==[^=]+==$/.test(lines[i])) {
        batchIndexes.push(i);
      }
    }

    if (batchIndexes.length === 0) {
      alert('未找到批次标题（格式: == 批次标题 ==）');
      return;
    }

    for(let i = 0; i < batchIndexes.length; i++) {
      const startIdx = batchIndexes[i];
      const endIdx = i + 1 < batchIndexes.length ? batchIndexes[i + 1] : lines.length;
      const batchLines = lines.slice(startIdx, endIdx);

      const title = batchLines[0].replace(/^==\s*|\s*==$/g, '');

      const orderIdx = batchLines.findIndex(l => l.toLowerCase() === 'order');
      const idIdx = batchLines.findIndex(l => l.toLowerCase() === 'id');

      if (orderIdx === -1 || idIdx === -1 || orderIdx >= idIdx) {
        continue;
      }

      const orderListBatch = batchLines.slice(orderIdx + 1, idIdx);
      const candidateListBatch = batchLines.slice(idIdx + 1);

      if (orderListBatch.length === 0 || candidateListBatch.length === 0) continue;

      batches.push({title, orderList: orderListBatch, candidateList: candidateListBatch});
    }
  }

  // 加载某批次数据
  function loadBatch(index) {
    if (index < 0 || index >= batches.length) return;
    const batch = batches[index];
    orderList = batch.orderList.slice();
    candidateList = batch.candidateList.slice();
    candidatePool = candidateList.slice();

    // 如果不允许重复抽取，且待抽人数不足 orderList，则补齐 `[empty]`
    if (!allowRepeatsCheckbox.checked && candidatePool.length < orderList.length) {
      const diff = orderList.length - candidatePool.length;
      for (let i = 0; i < diff; i++) {
        candidatePool.push('[empty]');
      }
    }

    assigned = [];
    drawIndex = 0;
    rolling = false;
    clearInterval(intervalId);
    intervalId = null;

    pageTitle.textContent = `${baseTitle} - ${batch.title}`;
    orderListDiv.textContent = orderList.join('\n');
    candidateListDiv.textContent = candidatePool.join('\n');
    currentDrawDiv.textContent = '';
    updateCurrentOrder();

    drawArea.style.display = 'block';
    startStopBtn.disabled = false;
    startStopBtn.textContent = '开始抽签';
    undoBtn.disabled = true;
    allowRepeatsCheckbox.disabled = false;

    tbody.innerHTML = '';
    resultTable.style.display = 'none';
  }

  function updateCurrentOrder() {
    currentOrderSpan.textContent = drawIndex < orderList.length ? orderList[drawIndex] : '本批抽完';
  }

  startStopBtn.onclick = () => {
    if (!rolling) {
      if (drawIndex >= orderList.length) {
        alert('本批已抽完');
        return;
      }
      if (candidatePool.length === 0) {
        alert('本批待抽名单为空，无法继续抽签');
        return;
      }
      rolling = true;
      startStopBtn.textContent = '停止抽签';
      intervalId = setInterval(() => {
        const idx = Math.floor(Math.random() * candidatePool.length);
        currentDrawDiv.textContent = candidatePool[idx];
      }, 30);
      // 禁用“允许重复抽取”复选框
      allowRepeatsCheckbox.disabled = true;
      // 播放背景音乐
      if (bgmPlayer.src) {
        bgmPlayer.currentTime = 0;
        bgmPlayer.play().catch(err => console.warn("BGM 播放失败:", err));
      }
    } else {
      rolling = false;
      startStopBtn.textContent = '开始抽签';
      clearInterval(intervalId);

      const selected = currentDrawDiv.textContent;
      assigned.push({order: orderList[drawIndex], candidate: selected});
      allAssigned.push({order: orderList[drawIndex], candidate: selected});

      // 根据是否允许重复来决定是否移除待抽项
      if (!allowRepeatsCheckbox.checked) {
        const removeIdx = candidatePool.indexOf(selected);
        if (removeIdx !== -1) candidatePool.splice(removeIdx, 1);
      }

      orderListDiv.textContent = orderList.slice(drawIndex + 1).join('\n');
      candidateListDiv.textContent = candidatePool.join('\n');

      const tr = document.createElement('tr');
      tr.innerHTML = `<td>${tbody.children.length + 1}</td><td>${orderList[drawIndex]}</td><td>${selected}</td>`;
      tbody.appendChild(tr);
      resultTable.style.display = 'table';

      drawIndex++;
      updateCurrentOrder();

      undoBtn.disabled = false;
      exportBtn.disabled = false;

      // 暂停音乐
      if (!bgmPlayer.paused) {
        bgmPlayer.pause();
      }

      // 检查是否只剩最后一项
      if (drawIndex === orderList.length - 1 && candidatePool.length === 1) {
        const finalOrder = orderList[drawIndex];
        const finalCandidate = candidatePool[0];

        assigned.push({order: finalOrder, candidate: finalCandidate});
        allAssigned.push({order: finalOrder, candidate: finalCandidate});

        const tr = document.createElement('tr');
        tr.innerHTML = `<td>${drawIndex + 1}</td><td>${finalOrder}</td><td>${finalCandidate}</td>`;
        tbody.appendChild(tr);
        resultTable.style.display = 'table';

        currentDrawDiv.textContent = finalCandidate; // 让界面上显示出最后一个被自动分配的抽签结果
        candidatePool = [];
        drawIndex++;
        updateCurrentOrder();

        orderListDiv.textContent = '';
        candidateListDiv.textContent = '';

        startStopBtn.disabled = true;
        undoBtn.disabled = false;
        exportBtn.disabled = false;
      }

      if (drawIndex >= orderList.length) {
        startStopBtn.disabled = true;
        undoBtn.disabled = false;
        exportBtn.disabled = false;
      }
    }
  };

  undoBtn.onclick = () => {
    if (rolling) {
      alert('正在抽签中，无法撤销');
      return;
    }
    if (assigned.length === 0) {
      alert('没有可以撤销的抽签');
      return;
    }

    // 撤销最后一次抽签
    const last = assigned.pop();

    // 从 allAssigned 中移除对应项
    for (let i = allAssigned.length - 1; i >= 0; i--) {
      if (
        allAssigned[i].order === last.order &&
        allAssigned[i].candidate === last.candidate
      ) {
        allAssigned.splice(i, 1);
        break;
      }
    }

    // 将待抽项放回待抽名单（末尾即可）
    if (!allowRepeatsCheckbox.checked) {
      candidatePool.push(last.candidate);
    }

    // 减少当前抽签索引
    drawIndex--;

    // 删除结果表最后一行
    const lastTr = tbody.querySelector('tr:last-child');
    if (lastTr) tbody.removeChild(lastTr);

    // 更新待抽列表显示（不再更改 orderList，只用 slice 动态显示）
    orderListDiv.textContent = orderList.slice(drawIndex).join('\n');
    candidateListDiv.textContent = candidatePool.join('\n');

    updateCurrentOrder();

    startStopBtn.disabled = false;
    allowRepeatsCheckbox.disabled = assigned.length !== 0;
    undoBtn.disabled = assigned.length === 0;
    exportBtn.disabled = allAssigned.length === 0;
  };

  nextBatchBtn.onclick = () => {
    const currentBatchUnfinished = drawIndex < orderList.length;
    if (currentBatchUnfinished) {
      const confirmNext = confirm('当前批次尚未抽完，确定要加载下一批吗？');
      if (!confirmNext) return;
    }

    if (rolling) {
      alert('正在抽签中，无法切换批次');
      return;
    }
    if (currentBatchIndex + 1 >= batches.length) {
      alert('已经是最后一批');
      return;
    }
    currentBatchIndex++;
    loadBatch(currentBatchIndex);
  };

  exportBtn.onclick = () => {
    if (allAssigned.length === 0) {
      alert('无抽签结果可导出');
      return;
    }
    let content = '';
    allAssigned.forEach(pair => {
      content += `${pair.order}: ${pair.candidate}\n`;
    });
    const blob = new Blob([content], {type: 'text/plain;charset=utf-8'});
    const url = URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
    a.download = `${baseTitle}_抽签结果.txt`;
    document.body.appendChild(a);
    a.click();
    setTimeout(() => {
      document.body.removeChild(a);
      URL.revokeObjectURL(url);
    }, 0);
  };
</script>

</body>
</html>