{% extends "base.html" %}
{% block title %}学习管线 - WeChat Viewer{% endblock %}
{% block body %}
<style>
body{overflow-y:auto!important;height:auto!important;}
.learn-container{max-width:1000px;margin:0 auto;padding:16px;}
.learn-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;flex-wrap:wrap;gap:8px;}
.learn-header h1{font-size:20px;color:#2c3e50;}

/* Pipeline flow */
.pipeline{display:flex;align-items:center;gap:6px;margin-bottom:16px;flex-wrap:wrap;font-size:12px;}
.pipe-step{background:white;padding:8px 12px;border-radius:8px;text-align:center;min-width:70px;box-shadow:0 1px 2px rgba(0,0,0,0.05);cursor:pointer;transition:.15s;border:2px solid transparent;}
.pipe-step:hover{border-color:#3498db;}
.pipe-step .n{font-size:18px;font-weight:bold;}
.pipe-step .l{font-size:10px;color:#999;}
.pipe-step.s1 .n{color:#9b59b6}.pipe-step.s2 .n{color:#f39c12}
.pipe-step.s3 .n{color:#e67e22}.pipe-step.s4 .n{color:#27ae60}
.pipe-step.s5 .n{color:#8e44ad}.pipe-step.s6 .n{color:#e74c3c}
.pipe-arrow{color:#ccc;font-size:14px;}

/* Tabs */
.tabs{display:flex;gap:4px;margin-bottom:10px;flex-wrap:wrap;}
.tab{padding:6px 12px;border-radius:6px;cursor:pointer;font-size:12px;border:1px solid #ddd;background:white;color:#666;}
.tab.active{background:#2c3e50;color:white;border-color:#2c3e50;}
.tab .count{font-size:10px;margin-left:4px;opacity:.7;}

/* Date filter */
.date-bar{display:flex;align-items:center;gap:8px;margin-bottom:12px;font-size:12px;flex-wrap:wrap;}
.date-bar input[type=date]{border:1px solid #cfd8e3;border-radius:6px;padding:5px 8px;font-size:12px;}
.date-bar .btn-sm{padding:4px 10px;border:1px solid #ddd;border-radius:6px;background:white;cursor:pointer;font-size:11px;color:#555;}
.date-bar .btn-sm.active{background:#2c3e50;color:white;border-color:#2c3e50;}
.date-bar .btn-sm:hover{border-color:#3498db;}
.date-bar .filtered-count{color:#888;font-size:11px;}

/* Cards */
.card{background:white;border-radius:8px;padding:12px 16px;margin-bottom:8px;box-shadow:0 1px 2px rgba(0,0,0,0.04);}
.card.skill{border-left:3px solid #1e8449}.card.memory{border-left:3px solid #1a5276}
.card.reference{border-left:3px solid #6c3483}.card.todo{border-left:3px solid #b9770e}
.card.failed{border-left-color:#e74c3c;opacity:.85;}
.card .row{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap;}
.card .title{font-size:13px;font-weight:600;flex:1;min-width:120px;}
.card .meta{font-size:11px;color:#888;}
.card .content{font-size:12px;color:#555;line-height:1.5;white-space:pre-wrap;max-height:60px;overflow:hidden;}
.card .content.open{max-height:none;}
.card .expand{font-size:10px;color:#3498db;cursor:pointer;margin-top:4px;}
.card .actions{margin-top:8px;display:flex;gap:6px;}

.badge{font-size:9px;padding:2px 7px;border-radius:8px;font-weight:600;white-space:nowrap;}
.badge.skill{background:#d5f5e3;color:#1e8449}.badge.memory{background:#d6eaf8;color:#1a5276}
.badge.reference{background:#e8daef;color:#6c3483}.badge.todo{background:#fdebd0;color:#b9770e}
.badge.high{background:#fadbd8;color:#922b21}.badge.medium{background:#fef9e7;color:#7d6608}.badge.low{background:#f2f3f4;color:#999}
.badge.auto{background:#e8daef;color:#6c3483}
.badge.score{font-weight:bold;font-size:11px;}
.badge.time{background:#f0f0f0;color:#888;}

.btn{padding:5px 12px;border:none;border-radius:5px;cursor:pointer;font-size:12px;color:white;}
.btn.green{background:#27ae60}.btn.green:hover{background:#219a52}
.btn.red{background:#e74c3c}.btn.red:hover{background:#c0392b}
.btn.orange{background:#f39c12}.btn.orange:hover{background:#d68910}
.btn.purple{background:#9b59b6}.btn.purple:hover{background:#8e44ad}
.btn:disabled{opacity:.5;cursor:not-allowed}

.empty-state{text-align:center;padding:40px 20px;color:#999;}
.loading{text-align:center;padding:30px;color:#999;}
.result-detail{font-size:11px;color:#888;margin-top:6px;line-height:1.6;}
.result-detail b{color:#555;}
.fb-box{border-top:1px solid #eee;margin-top:8px;padding-top:6px;}
.fb-input{width:100%;padding:5px 8px;border:1px solid #ddd;border-radius:4px;font-size:11px;box-sizing:border-box;}
.fb-btn{background:#3498db;color:white;border:none;padding:3px 8px;border-radius:4px;cursor:pointer;font-size:10px;margin-top:3px;}
.fb-done{font-size:10px;color:#8e44ad;padding:3px 6px;background:#f4ecf7;border-radius:4px;}
</style>

<div class="learn-container">
<div class="learn-header">
<h1>📚 学习管线</h1>
<div style="display:flex;gap:6px;">
<button class="btn purple" id="btnClassify" onclick="runClassify()">🤖 运行分类器</button>
<button class="btn" style="background:#7f8c8d;color:white;" onclick="refresh()">🔄 刷新</button>
</div>
</div>

<!-- Pipeline flow -->
<div class="pipeline" id="pipeline"></div>

<!-- Tabs -->
<div class="tabs" id="tabs">
<div class="tab active" data-tab="articles">📰 文章列表<span class="count"></span></div>
<div class="tab" data-tab="pending_review">待审核<span class="count"></span></div>
<div class="tab" data-tab="pending_learn">待学习<span class="count"></span></div>
<div class="tab" data-tab="applied">已吸收<span class="count"></span></div>
<div class="tab" data-tab="results">学习报告<span class="count"></span></div>
<div class="tab" data-tab="failed">失败<span class="count"></span></div>
</div>

<!-- Date filter -->
<div class="date-bar" id="dateBar">
  <span style="color:#999;">📅</span>
  <input type="date" id="dateFrom" onchange="applyDateFilter()" style="width:130px;">
  <span style="color:#999;">至</span>
  <input type="date" id="dateTo" onchange="applyDateFilter()" style="width:130px;">
  <button class="btn-sm active" data-range="all" onclick="setDateRange('all')">全部</button>
  <button class="btn-sm" data-range="today" onclick="setDateRange('today')">今天</button>
  <button class="btn-sm" data-range="7d" onclick="setDateRange('7d')">近7天</button>
  <button class="btn-sm" data-range="30d" onclick="setDateRange('30d')">近30天</button>
  <input type="text" id="searchInput" placeholder="搜索文章标题..." oninput="renderContent()" style="padding:5px 10px;border:1px solid #cfd8e3;border-radius:6px;font-size:12px;min-width:140px;">
  <select id="dateFilter" onchange="applyDateFilter()" style="padding:5px 10px;border:1px solid #cfd8e3;border-radius:6px;font-size:12px;background:white;cursor:pointer;min-width:120px;">
    <option value="">全部日期</option>
    <option value="today">今天</option>
    <option value="7d">近7天</option>
    <option value="30d">近30天</option>
  </select>
  <select id="sortBy" onchange="renderContent()" style="padding:5px 10px;border:1px solid #cfd8e3;border-radius:6px;font-size:12px;background:white;cursor:pointer;">
    <option value="score">按评分↓</option>
    <option value="time">按时间↓</option>
    <option value="title">按标题</option>
  </select>
  <span class="filtered-count" id="filteredCount"></span>
</div>

<div id="content"></div>
</div>

<script>
var TAB = 'articles';
var stats = {};
var dateFrom = null;
var dateTo = null;
var allData = []; // cached full dataset for client-side filtering

function esc(s){return String(s||'').replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');}
var TN={skill:'🛠 Skill',memory:'🧠 记忆',todo:'📋 待办',reference:'📖 参考'};
var CN={high:'高',medium:'中',low:'低'};

function fmtDate(d){if(!d)return'-'; return d.substring(0,16);}
function fmtDateShort(d){if(!d)return'-'; return d.substring(5,16);}

function setDateRange(range){
  document.querySelectorAll('.btn-sm[data-range]').forEach(function(b){b.classList.remove('active');});
  document.querySelector('.btn-sm[data-range='+range+']').classList.add('active');
  var now=new Date();
  if(range==='all'){dateFrom=null;dateTo=null;}
  else if(range==='today'){var s=now.toISOString().substring(0,10); dateFrom=s; dateTo=s;}
  else{var d=new Date(now.getTime()-(parseInt(range)*24*3600*1000)); dateFrom=d.toISOString().substring(0,10); dateTo=now.toISOString().substring(0,10);}
  document.getElementById('dateFrom').value=dateFrom||'';
  document.getElementById('dateTo').value=dateTo||'';
  applyDateFilter();
}

function applyDateFilter(){
  var fv=document.getElementById('dateFrom').value;
  var tv=document.getElementById('dateTo').value;
  dateFrom=fv||null;
  dateTo=tv||null;
  var df = document.getElementById('dateFilter').value;
  if (df) { setDateRange(df); return; }
  // highlight active range button if matches
  document.querySelectorAll('.btn-sm[data-range]').forEach(function(b){b.classList.remove('active');});
  if(!dateFrom&&!dateTo) document.querySelector('.btn-sm[data-range=all]').classList.add('active');
  renderContent();
}

function filterByDate(data){
  if(!dateFrom&&!dateTo) return data;
  // use reviewed_at if available, else created_at
  return data.filter(function(d){
    var t=d.reviewed_at||d.created_at||'';
    if(!t) return false;
    var day=t.substring(0,10);
    if(dateFrom&&day<dateFrom) return false;
    if(dateTo&&day>dateTo) return false;
    return true;
  });
}

function refresh(){loadStats().then(function(){loadContent();});}

function loadStats(){
  return fetch('/api/learn/stats').then(function(r){return r.json()}).then(function(j){
    if(!j.ok)return;
    stats = j.data;
    renderPipeline();
    renderTabs();
  });
}

function renderPipeline(){
  var s=stats;
  var h='';
  h+='<div style="display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap;font-size:12px;">';
  h+=pipeStep('s1','未分类',s.unclassified||0);
  h+='<span style="color:#999;font-size:11px;">→ 分类器 →</span>';
  h+=pipeStep('s2','≥7 待学习',s.pending_learn||0)+arrow();
  h+=pipeStep('s4','已吸收',s.applied||0)+arrow();
  h+=pipeStep('s5','学习报告',s.results_count||0);
  h+=arrow()+pipeStep('s6','失败',s.failed||0);
  h+='</div>';
  h+='<div style="display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;">';
  h+='<span style="display:inline-block;width:68px;"></span>';
  h+='<span style="color:#999;font-size:11px;">↘ 4-6</span>';
  h+=pipeStep('s3','待审核',s.pending||0);
  h+='<span style="color:#999;font-size:10px;">（人工审批）</span>';
  h+='</div>';
  document.getElementById('pipeline').innerHTML=h;
}

function pipeStep(cls,label,n){
  return '<div class="pipe-step '+cls+'" onclick="switchTab(\''+(label==='待审核'?'pending_review':label==='待学习'?'pending_learn':label==='已吸收'?'applied':label==='学习报告'?'results':'failed')+'\')"><div class="n">'+n+'</div><div class="l">'+label+'</div></div>';
}
function arrow(){return '<span class="pipe-arrow">→</span>';}

function renderTabs(){
  var s=stats;
  var counts={articles:(s.unclassified||0)+(s.pending||0)+(s.pending_learn||0)+(s.applied||0)+(s.failed||0)+(s.rejected||0), pending_review:s.pending||0, pending_learn:s.pending_learn||0, applied:s.applied||0, results:s.results_count||0, failed:s.failed||0};
  document.querySelectorAll('.tab').forEach(function(t){
    var key=t.getAttribute('data-tab');
    var c=t.querySelector('.count');
    if(c)c.textContent=counts[key]?'('+counts[key]+')':'';
    t.classList.toggle('active',key===TAB);
  });
}

function switchTab(tab){
  TAB=tab;
  renderTabs();
  loadContent();
}

function loadContent(){
  allData=[];
  var el=document.getElementById('content');
  el.innerHTML='<div class="loading">加载中...</div>';
  if(TAB==='articles'){ loadArticles(el); }
  else if(TAB==='results'){ loadResults(el); }
  else{ loadQueue(el,TAB); }
}

function renderContent(){
  // re-render with current filter
  var q = (document.getElementById('searchInput').value || '').trim().toLowerCase();
  var sb = document.getElementById('sortBy').value;
  if (q) {
    allData = allData.filter(function(d){
      return ((d.title || '') + ' ' + (d.result_summary || '') + ' ' + (d.error_msg || '')).toLowerCase().indexOf(q) >= 0;
    });
  }
  if (sb === 'title') allData.sort(function(a,b){return (a.title||'').localeCompare(b.title||'')});
  else if (sb === 'time') allData.sort(function(a,b){return (b.created_at||'').localeCompare(a.created_at||'')});
  else allData.sort(function(a,b){return (b.score||0)-(a.score||0)});
  if(TAB==='articles'){ loadArticles(document.getElementById('content'), allData); }
  else if(TAB==='results'){ loadResults(document.getElementById('content'), allData); }
  else{ renderQueueCards(allData); }
}

function loadArticles(el, cached){
  if(cached&&cached.length){ renderArticlesTable(cached,el); return; }
  fetch('/api/learn/articles').then(function(r){return r.json()}).then(function(j){
    if(!j.ok||!j.data.length){el.innerHTML='<div class="empty-state"><p>暂无文章</p><small>运行分类器后出现</small></div>';return;}
    allData=j.data;
    renderArticlesTable(allData,el);
  }).catch(function(e){el.innerHTML='<div class="empty-state">加载失败: '+e.message+'</div>';});
}

function renderArticlesTable(data,el){
  var filtered=filterByDate(data);
  document.getElementById('filteredCount').textContent=filtered.length!==data.length?'筛选 '+filtered.length+'/'+data.length+' 篇':'';
  if(!filtered.length){el.innerHTML='<div class="empty-state">该时间范围内无数据</div>';return;}

  var h='<div style="font-size:11px;color:#999;margin-bottom:10px;">共 '+filtered.length+' 篇，按评分↓</div>';
  h+='<table style="width:100%;border-collapse:collapse;font-size:12px;">';
  h+='<thead><tr style="background:#f8f9fa;text-align:left;">';
  h+='<th style="padding:8px;border-bottom:2px solid #ddd;">评分</th>';
  h+='<th style="padding:8px;border-bottom:2px solid #ddd;">文章</th>';
  h+='<th style="padding:8px;border-bottom:2px solid #ddd;">类型</th>';
  h+='<th style="padding:8px;border-bottom:2px solid #ddd;">状态</th>';
  h+='<th style="padding:8px;border-bottom:2px solid #ddd;">吸收时间</th>';
  h+='<th style="padding:8px;border-bottom:2px solid #ddd;">结果</th>';
  h+='</tr></thead><tbody>';

  for(var i=0;i<filtered.length;i++){
    var t=filtered[i];
    var sc=t.score||0;
    var scColor=sc>=7?'#27ae60':sc>=4?'#f39c12':'#95a5a6';
    var stLabel={'pending_review':'待审核','pending_learn':'待学习','applied':'已吸收','approved':'已通过','failed':'失败','rejected':'已拒绝'};
    var st=t.status||'?';
    var stColor=st==='applied'?'#27ae60':st==='failed'?'#e74c3c':st==='pending_learn'?'#f39c12':'#666';
    var result=t.result_summary||t.error_msg||'';
    if(t.created_skill)result='🛠 '+esc(t.created_skill);
    var time=t.status==='applied'?(t.reviewed_at||t.created_at||''):(t.created_at||'');

    h+='<tr onclick="location=\'/learn/'+t.id+'\'" style="cursor:pointer;border-bottom:1px solid #eee;'+(i%2?'background:#fafafa':'')+'">';
    h+='<td style="padding:8px;font-weight:bold;color:'+scColor+';white-space:nowrap;">⭐'+sc+'</td>';
    h+='<td style="padding:8px;">'+esc((t.title||'?').substring(0,60))+'</td>';
    h+='<td style="padding:8px;white-space:nowrap;">'+esc({skill:'Skill',memory:'记忆',reference:'参考',todo:'待办'}[t.learn_type]||t.learn_type||'')+'</td>';
    h+='<td style="padding:8px;color:'+stColor+';font-weight:600;white-space:nowrap;">'+(stLabel[st]||st)+'</td>';
    h+='<td style="padding:8px;font-size:11px;color:#888;white-space:nowrap;">'+fmtDateShort(time)+'</td>';
    h+='<td style="padding:8px;font-size:11px;color:#888;">'+(result?esc(result).substring(0,40):'-')+'</td>';
    h+='</tr>';
  }
  h+='</tbody></table>';
  el.innerHTML=h;
}

function loadQueue(el,status){
  fetch('/api/learn-queue?status='+status).then(function(r){return r.json()}).then(function(j){
    if(!j.ok||!j.data.length){el.innerHTML='<div class="empty-state">暂无数据</div>';return;}
    allData=j.data.slice().sort(function(a,b){return(b.score||0)-(a.score||0);});
    renderQueueCards(allData);
  }).catch(function(e){el.innerHTML='<div class="empty-state">加载失败: '+e.message+'</div>';});
}

function renderQueueCards(data){
  var filtered=filterByDate(data);
  document.getElementById('filteredCount').textContent=filtered.length!==data.length?'筛选 '+filtered.length+'/'+data.length+' 篇':'';
  var el=document.getElementById('content');
  if(!filtered.length){el.innerHTML='<div class="empty-state">该时间范围内无数据</div>';return;}

  var h='';
  for(var i=0;i<filtered.length;i++){
    var t=filtered[i];
    var typeCls=t.learn_type||'';
    var failedCls=t.status==='failed'?' failed':'';
    var scoreColor=t.score>=7?'#27ae60':t.score>=4?'#f39c12':'#95a5a6';
    var time=t.status==='applied'?(t.reviewed_at||t.created_at||''):(t.created_at||'');

    h+='<div class="card '+typeCls+failedCls+'" onclick="location=\'/learn/'+t.id+'\'" style="cursor:pointer;">';
    h+='<div class="row">';
    h+='<span class="badge '+typeCls+'">'+(TN[typeCls]||typeCls)+'</span>';
    if(t.score)h+='<span class="badge score" style="color:'+scoreColor+'">⭐'+t.score+'</span>';
    h+='<span class="badge '+t.confidence+'">'+(CN[t.confidence]||t.confidence)+'</span>';
    h+='<span class="title">'+esc(t.title||'未命名')+'</span>';
    if(t.status==='applied')h+='<span style="font-size:10px;color:#27ae60;">✓</span>';
    if(t.status==='failed')h+='<span style="font-size:10px;color:#e74c3c;">❌</span>';
    h+='<span class="badge time">'+fmtDateShort(time)+'</span>';
    h+='</div>';

    if(t.learn_target)h+='<div class="meta">目标: '+esc(t.learn_target)+'</div>';

    if(t.learn_content){
      var cid='q'+i; var txt=String(t.learn_content);
      h+='<div class="content" id="'+cid+'">'+esc(txt.substring(0,200))+'</div>';
      if(txt.length>200)h+='<div class="expand" data-cid="'+cid+'" data-full="'+esc(txt)+'" onclick="toggleCard(this)">▶ 展开</div>';
    }

    if(t.error_msg)h+='<div style="font-size:10px;color:#e74c3c;margin-top:4px;">'+esc(t.error_msg)+'</div>';

    if(t.status==='pending_review'||t.status==='pending_learn'){
      h+='<div class="actions" onclick="event.stopPropagation();">';
      h+='<button class="btn green" onclick="approve('+t.id+')">✅ 吸收</button>';
      h+='<button class="btn orange" onclick="reject('+t.id+')">🗑 跳过</button>';
      h+='</div>';
    }
    if(t.status==='failed'){
      h+='<div class="actions" onclick="event.stopPropagation();">';
      h+='<button class="btn orange" onclick="retry('+t.id+')">🔄 重试</button>';
      h+='</div>';
    }
    h+='</div>';
  }
  el.innerHTML=h;
}

function loadResults(el, cached){
  if(cached&&cached.length){ renderResultsCards(cached,el); return; }
  fetch('/api/learn-results').then(function(r){return r.json()}).then(function(j){
    if(!j.ok||!j.data.length){el.innerHTML='<div class="empty-state"><p>暂无学习报告</p><small>吸收完成后自动生成</small></div>';return;}
    allData=j.data;
    renderResultsCards(allData,el);
  }).catch(function(e){el.innerHTML='<div class="empty-state">加载失败: '+e.message+'</div>';});
}

function renderResultsCards(data,el){
  var filtered=filterByDate(data);
  document.getElementById('filteredCount').textContent=filtered.length!==data.length?'筛选 '+filtered.length+'/'+data.length+' 篇':'';
  if(!filtered.length){el.innerHTML='<div class="empty-state">该时间范围内无数据</div>';return;}

  var h='';
  for(var i=0;i<filtered.length;i++){
    var t=filtered[i];
    h+='<div class="card '+t.result_type+'" onclick="location=\'/learn/'+(t.learn_queue_id||t.id)+'\'" style="cursor:pointer;">';
    h+='<div class="row">';
    h+='<span class="badge '+t.result_type+'">'+(TN[t.result_type]||t.result_type)+'</span>';
    if(t.auto_applied)h+='<span class="badge auto">🤖 自动</span>';
    h+='<span class="title">'+esc(t.article_title||'未命名')+'</span>';
    h+='<span style="font-size:10px;color:#999;">'+fmtDate(t.created_at)+'</span>';
    h+='</div>';

    if(t.result_summary)h+='<div class="content">'+esc(t.result_summary).substring(0,300)+'</div>';

    h+='<div class="result-detail">';
    if(t.created_skill)h+='<div>🛠 创建 skill: <b>'+esc(t.created_skill)+'</b></div>';
    if(t.updated_skill)h+='<div>📝 更新 skill: <b>'+esc(t.updated_skill)+'</b></div>';
    if(t.learned_methodology)h+='<div>💡 方法论: '+esc(t.learned_methodology).substring(0,100)+'</div>';
    if(t.verification_result)h+='<div>✅ 验证: '+esc(t.verification_result).substring(0,100)+'</div>';
    if(t.architecture_change)h+='<div>🔧 架构: '+esc(t.architecture_change).substring(0,100)+'</div>';
    h+='</div>';

    h+='<div class="fb-box" onclick="event.stopPropagation();">';
    if(t.human_feedback){
      h+='<div class="fb-done">💬 '+esc(t.human_feedback)+'</div>';
    }else{
      h+='<input class="fb-input" id="fb_'+t.id+'" placeholder="输入反馈..."><button class="fb-btn" onclick="sendFb('+t.id+')">发送</button>';
    }
    h+='</div>';
    h+='</div>';
  }
  el.innerHTML=h;
}

function toggleCard(el){
  var cid=el.getAttribute('data-cid');var txt=el.getAttribute('data-full');
  var d=document.getElementById(cid);if(!d)return;
  if(d.classList.contains('open')){
    d.classList.remove('open');d.textContent=txt.substring(0,200);
    el.textContent='▶ 展开';
  }else{
    d.classList.add('open');d.innerHTML=txt.replace(/\\n/g,'<br>');
    el.textContent='▲ 收起';
  }
}

function approve(id){fetch('/api/learn/'+id+'/approve',{method:'POST'}).then(function(r){return r.json()}).then(function(j){if(j.ok)refresh();else alert(j.error);});}
function reject(id){fetch('/api/learn/'+id+'/reject',{method:'POST'}).then(function(r){return r.json()}).then(function(j){if(j.ok)refresh();else alert(j.error);});}
function retry(id){approve(id);}
function sendFb(id){
  var inp=document.getElementById('fb_'+id);if(!inp||!inp.value.trim())return;
  fetch('/api/learn-result/'+id+'/feedback',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({feedback:inp.value.trim()})}).then(function(r){return r.json()}).then(function(j){if(j.ok)refresh();else alert(j.error);});
}

function runClassify(){
  var btn=document.getElementById('btnClassify');btn.disabled=true;btn.textContent='分类中...';
  fetch('/api/learn/classify',{method:'POST'}).then(function(r){return r.json()}).then(function(j){
    if(j.ok){alert('已启动: '+j.data.classified+' 篇');refresh();}else{alert(j.error);}
    btn.disabled=false;btn.textContent='🤖 运行分类器';
  });
}

// Init
document.querySelectorAll('.tab').forEach(function(t){
  t.addEventListener('click',function(){switchTab(this.getAttribute('data-tab'));});
});
refresh();
</script>
{% endblock %}