ny-exam-platform/dashboard.php

<?php
declare(strict_types=1);
require __DIR__ . '/bootstrap.php';

if (!ny_is_installed()) {
    header('Location: install.php');
    exit;
}
if (!ny_is_auth()) {
    header('Location: login.php');
    exit;
}
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>数据看板 · <?= htmlspecialchars(NY_APP_NAME) ?></title>
<link rel="stylesheet" href="assets/style.css">
</head>
<body class="dash">

<div class="wrap">

  <div class="dash-hero">
    <div class="brand">
      <span class="logo">NY</span>
      <div class="brand-text">
        <strong>NY问卷考试系统 · 数据看板</strong>
        <small>班级整体情况 · 面向班主任与学生</small>
      </div>
    </div>
    <div class="dash-controls">
      <select id="projectSel"><option value="">请选择问卷 / 考试</option></select>
      <label class="switch"><input type="checkbox" id="autoRefresh" checked><span></span></label>
      <select id="intervalSel" style="width:auto">
        <option value="5">5 秒</option>
        <option value="10">10 秒</option>
        <option value="15" selected>15 秒</option>
        <option value="30">30 秒</option>
        <option value="60">60 秒</option>
      </select>
      <button class="btn" id="btnRefresh">刷新</button>
      <button class="btn" id="btnFullscreen" title="切换全屏">⛶ 全屏</button>
    </div>
  </div>

  <div style="margin-top:14px;font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:6px;">
    最后更新：<span id="lastUpdate">—</span><i id="liveDot" class="dot"></i>
  </div>

  <!-- ================= 总览 ================= -->
  <div id="overview">
    <div class="sec-title">整体概况</div>
    <section class="cards" id="summary">
      <div class="card accent-blue"><span>名单总人数</span><b id="oTotal">-</b></div>
      <div class="card ok accent-green"><span>已提交</span><b id="oSubmit">-</b></div>
      <div class="card warn accent-orange"><span>缺考</span><b id="oAbsent">-</b></div>
      <div class="card accent-purple"><span>提交率</span><b id="oRate">-</b></div>
      <div class="card accent-teal"><span>平均分</span><b id="oAvg">-</b></div>
      <div class="card accent-indigo"><span>合格率(≥60%满分)</span><b id="oPass">-</b></div>
    </section>

    <div class="sec-title">各班整体情况 <span class="tag-gray" id="classCount"></span>
      <span class="hint" style="margin-left:auto;font-weight:500">点击班级卡片查看该班详情</span>
    </div>
    <div class="class-grid" id="classGrid">
      <div class="empty">请选择问卷 / 考试以查看各班数据</div>
    </div>
  </div>

  <!-- ================= 班级详情 ================= -->
  <div id="detail" class="hidden">
    <div class="detail-head">
      <button class="btn" id="btnBack">← 返回总览</button>
      <h2 id="detailTitle">班级详情</h2>
      <span class="tag-gray" id="detailSub"></span>
    </div>

    <section class="cards" id="detailSummary"></section>

    <div class="sec-title" id="groupSecTitle">分组对比</div>
    <div id="groupCompare"></div>
  </div>

</div>

<script>
const $ = s => document.querySelector(s);
const $$ = s => Array.from(document.querySelectorAll(s));
function esc(s){ return String(s == null ? '' : s).replace(/[&<>"]/g, c => ({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;'}[c])); }
function rateColor(r){
  if (r >= 90) return 'var(--ok)';
  if (r >= 60) return 'var(--warn)';
  return 'var(--danger)';
}

/* 本地存储（缓存问卷列表/看板数据，重开即恢复） */
const LS = {
  get(k, def){ try { const v = localStorage.getItem(k); return v == null ? def : JSON.parse(v); } catch(e){ return def; } },
  set(k, v){ try { localStorage.setItem(k, JSON.stringify(v)); } catch(e){} },
  del(k){ try { localStorage.removeItem(k); } catch(e){} }
};
const LS_PROJECTS = 'ny_projects';
const LS_DASH = pid => 'ny_dashboard_' + pid;

let DASH = null;   // 最近一次看板数据
let CUR  = null;   // 当前查看的班级名

async function api(action, opts){
  opts = opts || {};
  let url = 'api.php?action=' + encodeURIComponent(action);
  if (opts.params) {
    for (const k in opts.params) url += '&' + k + '=' + encodeURIComponent(opts.params[k]);
  }
  const res = await fetch(url, { headers: { 'Accept': 'application/json' } });
  const j = await res.json();
  if (j && j.ok) return j.data;
  throw new Error((j && (j.msg || j.error)) || '请求失败');
}

/* ---------- 问卷列表：双策略识别文件夹 + 缓存优先 ---------- */
function renderProjects(list){
  const sel = $('#projectSel');
  const keep = sel.value;
  sel.innerHTML = '<option value="">请选择问卷 / 考试</option>';
  // 双策略识别文件夹：mode 含 folder，或被其他项目作为 parent_id 引用
  const isFolder = p => (p.mode || '').toLowerCase().includes('folder');
  const parentIds = new Set();
  list.forEach(p => { const pid = (p.parent_id || '0'); if (pid && pid !== '0' && pid !== '') parentIds.add(pid); });
  const folderSet = new Set();
  list.forEach(p => { if (isFolder(p) || parentIds.has(p.id)) folderSet.add(p.id); });
  const childOf = fid => list.filter(p => !folderSet.has(p.id) && (p.parent_id || '0') === fid);

  // 根项
  list.filter(p => !folderSet.has(p.id)).forEach(p => {
    const o = document.createElement('option');
    o.value = p.id; o.textContent = (p.mode ? '[' + p.mode + '] ' : '') + p.name + '（' + (p.total || 0) + '份）';
    sel.appendChild(o);
  });
  // 文件夹
  list.filter(p => folderSet.has(p.id)).forEach(f => {
    const kids = childOf(f.id);
    if (!kids.length) return;
    const og = document.createElement('optgroup');
    og.label = '📁 ' + f.name;
    kids.forEach(p => {
      const o = document.createElement('option');
      o.value = p.id; o.textContent = (p.mode ? '[' + p.mode + '] ' : '') + p.name + '（' + (p.total || 0) + '份）';
      og.appendChild(o);
    });
    sel.appendChild(og);
  });
  if (keep && list.some(p => p.id === keep)) sel.value = keep;
  else {
    const last = LS.get('ny_dash_last_pid', '');
    if (last && list.some(p => p.id === last)) sel.value = last;
  }
}

async function loadProjects(){
  // 1) 先读本地缓存
  const cached = LS.get(LS_PROJECTS, []);
  if (Array.isArray(cached) && cached.length) {
    renderProjects(cached);
  }
  // 2) 后台异步刷新
  try {
    const list = await api('projects');
    LS.set(LS_PROJECTS, list || []);
    renderProjects(list || []);
  } catch (e) {
    if (!cached || !cached.length) {
      $('#classGrid').innerHTML = '<div class="empty">加载问卷列表失败：' + esc(e.message) + '</div>';
    }
  }
}

function renderSummary(d){
  const o = d.overall || {};
  $('#oTotal').textContent  = o.roster_total ?? '-';
  $('#oSubmit').textContent = o.submitted ?? '-';
  $('#oAbsent').textContent = o.absent ?? '-';
  $('#oRate').textContent   = (o.submit_rate != null ? o.submit_rate + '%' : '-');
  $('#oAvg').textContent    = o.avg_score != null ? o.avg_score : '-';
  $('#oPass').textContent   = (o.pass_rate != null ? o.pass_rate + '%' : '-');
}

function renderClasses(d){
  const classes = d.classes || [];
  $('#classCount').textContent = classes.length ? classes.length + ' 个班级' : '';
  if (!classes.length) {
    $('#classGrid').innerHTML = '<div class="empty">暂无班级数据（名单未导入班级信息）</div>';
    return;
  }
  $('#classGrid').innerHTML = classes.map(c => {
    const rate = c.rate || 0;
    const color = rateColor(rate);
    const gs = (c.groups || []).filter(g => g.group !== '（未分组）');
    const gtag = gs.length ? gs.map(g => esc(g.group) + '组').join(' / ') : '';
    return '<div class="class-card clickable" data-cls="' + esc(c.class) + '">' +
      '<h3><span>' + esc(c.class) + '</span><span class="rate-num" style="color:' + color + '">' + rate + '%</span></h3>' +
      '<div class="sub">已提交 ' + c.submitted + ' / 总人数 ' + c.total + ' · 缺考 ' + c.absent + '</div>' +
      '<div class="bar"><i style="width:' + rate + '%;background:' + color + '"></i></div>' +
      '<div class="class-metrics">' +
        '<div class="m"><span>平均分</span><b>' + (c.avg != null ? c.avg : '-') + '</b></div>' +
        '<div class="m"><span>合格率</span><b>' + c.pass_rate + '%</b></div>' +
        '<div class="m metric-ok"><span>最高分</span><b>' + (c.max != null ? c.max : '-') + '</b></div>' +
        '<div class="m metric-danger"><span>最低分</span><b>' + (c.min != null ? c.min : '-') + '</b></div>' +
      '</div>' +
      (gtag ? '<div class="grp-tag">' + gtag + '</div>' : '') +
    '</div>';
  }).join('');
}

/* ---------- 成员榜：排名 / 姓名 / 成绩（默认成绩降序） ---------- */
function membersTable(members){
  if (!members || !members.length) {
    return '<div class="empty" style="padding:18px 0">暂无考试成员</div>';
  }
  return '<div class="member-list"><table class="grid compact">' +
    '<thead><tr><th style="width:60px">排名</th><th>姓名</th><th style="width:80px">成绩</th></tr></thead><tbody>' +
    members.map(m => {
      const rk = m.rank;
      const badge = rk === 1 ? 'rk rk-1' : (rk === 2 ? 'rk rk-2' : (rk === 3 ? 'rk rk-3' : 'rk'));
      const sc = m.score;
      const cls = sc == null ? '' : (sc >= 90 ? 'score-high' : (sc >= 60 ? 'score-mid' : 'score-low'));
      return '<tr>' +
        '<td class="num"><span class="' + badge + '">' + rk + '</span></td>' +
        '<td class="name">' + esc(m.name) + '</td>' +
        '<td class="score num ' + cls + '">' + (sc == null ? '-' : sc) + '</td>' +
      '</tr>';
    }).join('') +
    '</tbody></table></div>';
}

/* ---------- 班级详情：整体 + A/B 分组对比 ---------- */
function showClassDetail(name){
  if (!DASH) return;
  const c = (DASH.classes || []).find(x => x.class === name);
  if (!c) return;
  CUR = name;

  $('#overview').classList.add('hidden');
  $('#detail').classList.remove('hidden');

  $('#detailTitle').textContent = c.class;
  $('#detailSub').textContent = '总人数 ' + c.total + ' · 已提交 ' + c.submitted + ' · 缺考 ' + c.absent;

  const color = rateColor(c.rate || 0);
  $('#detailSummary').innerHTML =
    '<div class="card accent-purple"><span>提交率</span><b style="color:' + color + '">' + c.rate + '%</b></div>' +
    '<div class="card ok accent-green"><span>已提交</span><b>' + c.submitted + '</b></div>' +
    '<div class="card warn accent-orange"><span>缺考</span><b>' + c.absent + '</b></div>' +
    '<div class="card accent-blue"><span>总人数</span><b>' + c.total + '</b></div>' +
    '<div class="card accent-teal"><span>平均分</span><b>' + (c.avg != null ? c.avg : '-') + '</b></div>' +
    '<div class="card accent-indigo"><span>合格率</span><b>' + c.pass_rate + '%</b></div>' +
    '<div class="card accent-green"><span>最高分</span><b>' + (c.max != null ? c.max : '-') + '</b></div>' +
    '<div class="card accent-red"><span>最低分</span><b>' + (c.min != null ? c.min : '-') + '</b></div>';

  // 分组对比：过滤掉“未分组”，按组名排序（A 在左，B 在右）
  const groups = (c.groups || []).filter(g => g.group !== '（未分组）');
  const box = $('#groupCompare');
  if (!groups.length) {
    $('#groupSecTitle').textContent = '考试成员';
    box.innerHTML = '<div class="gpanel">' +
      '<div class="ghead"><strong>本班考试成员</strong>' +
      '<span class="rate-num">' + c.submitted + ' 人</span></div>' +
      '<div class="sub">该班级未设置分组（A/B），以下按成绩从高到低排列</div>' +
      membersTable(c.members) + '</div>';
    return;
  }
  $('#groupSecTitle').textContent = '分组对比（' + groups.map(g => g.group).join(' vs ') + '）';
  box.innerHTML = '<div class="group-compare">' + groups.map(g => {
    const gc = rateColor(g.rate || 0);
    return '<div class="gpanel">' +
      '<div class="ghead"><strong>' + esc(g.group) + ' 组</strong>' +
      '<span class="rate-num" style="color:' + gc + '">' + g.rate + '%</span></div>' +
      '<div class="sub">已提交 ' + g.submitted + ' / 总人数 ' + g.total + ' · 缺考 ' + g.absent + '</div>' +
      '<div class="bar"><i style="width:' + g.rate + '%;background:' + gc + '"></i></div>' +
      '<div class="class-metrics">' +
        '<div class="m"><span>平均分</span><b>' + (g.avg != null ? g.avg : '-') + '</b></div>' +
        '<div class="m"><span>合格率</span><b>' + g.pass_rate + '%</b></div>' +
        '<div class="m metric-ok"><span>最高分</span><b>' + (g.max != null ? g.max : '-') + '</b></div>' +
        '<div class="m metric-danger"><span>最低分</span><b>' + (g.min != null ? g.min : '-') + '</b></div>' +
      '</div>' +
      '<div class="mem-title">考试成员 · 按成绩降序（' + g.submitted + ' 人）</div>' +
      membersTable(g.members) +
    '</div>';
  }).join('') + '</div>';
}

function backToOverview(){
  CUR = null;
  $('#detail').classList.add('hidden');
  $('#overview').classList.remove('hidden');
}

async function loadDashboard(){
  const pid = $('#projectSel').value;
  if (!pid) {
    $('#classGrid').innerHTML = '<div class="empty">请选择问卷 / 考试以查看各班数据</div>';
    return;
  }

  // 1) 缓存优先：先渲染上次保存的看板，避免空白
  const cached = LS.get(LS_DASH(pid), null);
  if (cached && cached.classes) {
    DASH = cached;
    renderSummary(DASH);
    renderClasses(DASH);
    $('#lastUpdate').textContent = (cached.updated_at || '—') + '（缓存）';
    if (CUR) {
      const still = (DASH.classes || []).some(x => x.class === CUR);
      if (still) showClassDetail(CUR); else backToOverview();
    }
  }

  // 2) 后台拉真实数据
  try {
    const fresh = await api('dashboard', { params: { projectId: pid } });
    DASH = fresh;
    LS.set(LS_DASH(pid), fresh);
    LS.set('ny_dash_last_pid', pid);
    renderSummary(DASH);
    renderClasses(DASH);
    $('#lastUpdate').textContent = DASH.updated_at || '-';
    $('#liveDot').classList.add('on');
    setTimeout(() => $('#liveDot').classList.remove('on'), 900);
    if (CUR) {
      const still = (DASH.classes || []).some(x => x.class === CUR);
      if (still) showClassDetail(CUR); else backToOverview();
    }
  } catch (e) {
    if (!cached) {
      $('#classGrid').innerHTML = '<div class="empty">数据加载失败：' + esc(e.message) + '</div>';
    }
  }
}

/* ---------- 全屏 ---------- */
function toggleFullscreen(){
  const el = document.documentElement;
  if (!document.fullscreenElement && !document.webkitFullscreenElement) {
    const req = el.requestFullscreen || el.webkitRequestFullscreen;
    if (req) req.call(el);
  } else {
    const ex = document.exitFullscreen || document.webkitExitFullscreen;
    if (ex) ex.call(document);
  }
}
function onFsChange(){
  const on = !!(document.fullscreenElement || document.webkitFullscreenElement);
  document.body.classList.toggle('fs-on', on);
  const btn = $('#btnFullscreen');
  if (btn) btn.textContent = on ? '⛶ 退出全屏' : '⛶ 全屏';
}

function schedule(){
  if (window.__timer) clearInterval(window.__timer);
  if (!$('#autoRefresh').checked) return;
  const sec = parseInt($('#intervalSel').value, 10) || 15;
  window.__timer = setInterval(loadDashboard, sec * 1000);
}

/* ---------- 事件 ---------- */
$('#projectSel').addEventListener('change', () => { backToOverview(); loadDashboard(); });
$('#btnRefresh').addEventListener('click', loadDashboard);
$('#autoRefresh').addEventListener('change', schedule);
$('#intervalSel').addEventListener('change', schedule);
$('#btnFullscreen').addEventListener('click', toggleFullscreen);
document.addEventListener('fullscreenchange', onFsChange);
document.addEventListener('webkitfullscreenchange', onFsChange);
$('#btnBack').addEventListener('click', backToOverview);

// 班级卡片点击进入详情
$('#classGrid').addEventListener('click', e => {
  const card = e.target.closest('.class-card');
  if (card && card.dataset.cls) showClassDetail(card.dataset.cls);
});

loadProjects().then(loadDashboard);
schedule();
</script>
</body>
</html>