const Upload = (() => {
  // 使用localStorage保存上传记录
  const STORAGE_KEY = 'mac_upload_history';
  
  // 事件监听器清理
  const eventListeners = [];
  const addListener = (element, event, handler) => {
    if(element){
      element.addEventListener(event, handler);
      eventListeners.push({element, event, handler});
    }
  };
  const cleanupListeners = () => {
    eventListeners.forEach(({element, event, handler}) => {
      element.removeEventListener(event, handler);
    });
    eventListeners.length = 0;
  };
  
  Router.onBeforeEach((path) => {
    if(!path.startsWith('/upload')){
      cleanupListeners();
    }
  });
  
  function getHistory() {
    try {
      return JSON.parse(localStorage.getItem(STORAGE_KEY) || '[]');
    } catch {
      return [];
    }
  }
  
  function saveToHistory(records) {
    try {
      const history = getHistory();
      const newRecords = records.map(r => ({
        ...r,
        timestamp: new Date().toISOString()
      }));
      const updated = [...newRecords, ...history].slice(0, 100); // 保留最近100条
      localStorage.setItem(STORAGE_KEY, JSON.stringify(updated));
    } catch (e) {
      console.error('保存历史记录失败:', e);
    }
  }
  
  function clearHistory() {
    localStorage.removeItem(STORAGE_KEY);
  }

  function section(title, inner) {
    return `<div class="card"><div style="font-weight:600;margin-bottom:8px">${title}</div>${inner}</div>`;
  }

  function filePicker(id,label,accept){
    return `<div class="field"><label>${label}</label><input id="${id}" type="file" class="input" accept="${accept}" /></div>`;
  }

  function numberInput(id,label){return `<div class="field"><label>${label}</label><input id="${id}" type="number" class="input" /></div>`}
  function textarea(id,label,placeholder=''){return `<div class="field"><label>${label}</label><textarea id="${id}" class="input" rows="4" placeholder="${placeholder}"></textarea></div>`}

  async function renderMac(){
    return section('MAC与批次（MAC与批次对应关系表）',`
      <div class="field">
        <label>上传类型</label>
        <select id="mac-type" class="input">
          <option value="pdd">拼多多</option>
          <option value="yt">圆通</option>
          <option value="tx">兔喜</option>
        </select>
      </div>
      ${filePicker('mac-file','批量导入(Excel)','application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.ms-excel')}
      <div class="actions"><button class="btn" id="mac-upload">上传</button></div>
      <div id="upload-log" style="margin-top:12px;display:none">
        <div style="font-weight:600;margin-bottom:8px">上传日志</div>
        <pre style="background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:12px;max-height:300px;overflow-y:auto;font-size:12px;color:var(--text);white-space:pre-wrap"></pre>
      </div>
      <div style="margin-top:12px">
        <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:8px">
          <span style="font-weight:600">最新记录</span>
          <div style="display:flex;gap:8px">
            <button class="btn btn-secondary" id="mac-show-history" style="font-size:12px;padding:4px 8px">查看历史</button>
            <button class="btn btn-secondary" id="mac-clear-display" style="font-size:12px;padding:4px 8px">清空显示</button>
          </div>
        </div>
        <ul id="mac-list" class="list" style="max-height:300px;overflow-y:auto"></ul>
      </div>
    `);
  }

  async function renderStats(){
    return section('良/不良统计',`
      <div style="background:rgba(79,140,255,0.08);border:1px solid rgba(79,140,255,0.2);border-radius:8px;padding:12px;margin-bottom:12px;font-size:13px;line-height:1.6">
        <div style="font-weight:600;margin-bottom:6px;color:var(--primary)">📊 数据说明</div>
        <div style="color:var(--text)">
          <div><strong>直通良品数：</strong>一次检测就通过的产品数量</div>
          <div><strong>良品数：</strong>最终通过检测的产品总数（包含直通良品 + 返修后通过的产品）</div>
          <div><strong>不良品数：</strong>最终未通过检测的产品数量（报废或待返修）</div>
          <div style="margin-top:6px;padding-top:6px;border-top:1px solid rgba(79,140,255,0.2);color:var(--text-2)">
            💡 <strong>计算公式：</strong><br>
            直通良品率 = 直通良品数 / (良品数 + 不良品数) × 100%<br>
            总良品率 = 良品数 / (良品数 + 不良品数) × 100%
          </div>
        </div>
      </div>
      <div class="field">
        <label>平台类型</label>
        <select id="stats-platform" class="input">
          <option value="pdd">拼多多</option>
          <option value="yt">圆通</option>
          <option value="tx">兔喜</option>
        </select>
      </div>
      ${numberInput('fpy-good-count','直通良品数量（一次检测通过）')}
      ${numberInput('good-count','良品数量（最终通过检测的总数）')}
      ${numberInput('bad-count','不良品数量（最终未通过）')}
      <div class="field">
        <label>不良明细（可选）</label>
        <textarea id="bad-details" class="input" rows="4" placeholder="每行一个不良记录，格式：MAC地址,批次号&#10;例如：90:A9:F7:DD:EE:FF,D20250000000001"></textarea>
      </div>
      <div class="actions"><button class="btn" id="stats-upload">上传</button></div>
      <div style="margin-top:12px">
        <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:8px">
          <span style="font-weight:600">最新记录</span>
          <div style="display:flex;gap:8px">
            <button class="btn btn-secondary" id="stats-show-history" style="font-size:12px;padding:4px 8px">查看历史</button>
            <button class="btn btn-secondary" id="stats-clear-display" style="font-size:12px;padding:4px 8px">清空显示</button>
          </div>
        </div>
        <ul id="stats-list" class="list" style="max-height:300px;overflow-y:auto"></ul>
      </div>
    `);
  }

  async function renderRepairs(){
    return section('返修记录',`
      ${numberInput('repair-qty','返修完成数量')}
      ${textarea('repair-note','备注（可选）','例如：批次号、问题描述等')}
      <div class="actions"><button class="btn" id="repairs-upload">上传</button></div>
      <div style="margin-top:12px">
        <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:8px">
          <span style="font-weight:600">最新记录</span>
          <button class="btn btn-secondary" id="repairs-show-all" style="font-size:12px;padding:4px 8px">查看全部</button>
        </div>
        <ul id="repairs-list" class="list" style="max-height:300px;overflow-y:auto"></ul>
      </div>
    `);
  }

  async function renderDefects(){
    return section('不良明细',`
      ${filePicker('defects-file','批量导入不良MAC与批次(Excel/CSV)','text/csv,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.ms-excel')}
      ${textarea('defects-manual','手动输入','AA:BB:...,BATCH-xyz; ...')}
      <div class="actions"><button class="btn" id="defects-upload">上传</button></div>
      <div style="margin-top:12px"><div style="font-weight:600;margin-bottom:8px">最新记录</div><ul id="defects-list" class="list"></ul></div>
    `);
  }

  Router.register('/upload/mac', async () => {
    const html = await renderMac();
    setTimeout(bindMacEvents,0);
    setTimeout(async ()=>{
      // 从服务器获取最新10条记录
      const listEl=document.getElementById('mac-list');
      try {
        const data = await API.listMac();
        if(listEl && data.list && data.list.length > 0){
          listEl.innerHTML = data.list.slice(0, 10).map(r=>`<li><span>${r.mac}</span><span class="badge">${r.batch}</span></li>`).join('');
        } else if(listEl) {
          listEl.innerHTML = '<li>暂无数据</li>';
        }
      } catch(e) {
        if(listEl) listEl.innerHTML = '<li>加载失败</li>';
      }
    },0);
    return html;
  });

  Router.register('/upload/stats', async () => {
    const html = await renderStats();
    setTimeout(bindStatsEvents,0);
    setTimeout(async ()=>{
      // 从服务器获取最新10条记录
      const listEl=document.getElementById('stats-list');
      try {
        const data = await API.listStats();
        if(listEl && data.list && data.list.length > 0){
          listEl.innerHTML = data.list.slice(0, 10).map(r=>{
            const platformName = {pdd: '拼多多', yt: '圆通', tx: '兔喜'}[r.platform] || '';
            const platformText = platformName ? `${platformName} - ` : '';
            let html = `<li><span>${platformText}直通良:${r.fpy_good||0} 良:${r.good} 不良:${r.bad}</span>`;
            html += '</li>';
            return html;
          }).join('');
        } else if(listEl) {
          listEl.innerHTML = '<li>暂无数据</li>';
        }
      } catch(e) {
        console.error('加载历史记录失败:', e);
        if(listEl) listEl.innerHTML = '<li>加载失败</li>';
      }
    },0);
    return html;
  });

  Router.register('/upload/repairs', async () => {
    const html = await renderRepairs();
    setTimeout(bindRepairsEvents,0);
    setTimeout(async ()=>{
      const listEl=document.getElementById('repairs-list');
      const data=await API.listRepairs().catch(()=>({list:[]}));
      listEl.innerHTML=(data.list||[]).slice(0,10).map(r=>{
        const ts = new Date(r.ts).toLocaleString('zh-CN');
        return `<li><span>数量: ${r.qty}</span><span class="badge">${r.note||'无备注'}</span><span style="font-size:11px;color:var(--text-2)">${ts}</span></li>`;
      }).join('')||'<li>暂无数据</li>';
    },0);
    return html;
  });

  Router.register('/upload/defects', async () => {
    const html = await renderDefects();
    setTimeout(bindDefectsEvents,0);
    setTimeout(async ()=>{
      const listEl=document.getElementById('defects-list');
      const data=await API.listDefects().catch(()=>({list:[]}));
      listEl.innerHTML=(data.list||[]).slice(0,10).map(r=>`<li><span>${r.mac}</span><span class="badge">${r.batch}</span></li>`).join('')||'<li>暂无数据</li>';
    },0);
    return html;
  });

  function readText(file){return new Promise((resolve,reject)=>{const r=new FileReader();r.onload=()=>resolve(r.result);r.onerror=reject;r.readAsText(file)})}

  function parseManual(text){
    return text.split(/\n+/).map(l=>l.trim()).filter(Boolean).map(l=>{
      const [mac,batch]=l.split(',');
      return { mac, batch };
    });
  }

  async function bindMacEvents(){
    const fileEl=document.getElementById('mac-file');
    const btn = document.getElementById('mac-upload');
    const showHistoryBtn = document.getElementById('mac-show-history');
    const clearDisplayBtn = document.getElementById('mac-clear-display');
    
    // 文件选择后立即验证
    addListener(fileEl, 'change', async ()=>{
      const file = fileEl.files[0];
      if(!file) return;
      
      try{
        const formData = new FormData();
        formData.append('file', file);
        const res = await fetch('/api/validate/mac-file', {
          method: 'POST',
          body: formData
        });
        const result = await res.json();
        
        if(!result.valid){
          API.toast(result.message || '文件格式不正确');
          fileEl.value = '';
          return;
        }
        
        API.toast(result.message || '文件验证通过');
      }catch(e){
        API.toast('文件验证失败');
        fileEl.value = '';
      }
    });
    
    // 查看历史按钮 - 从服务器获取所有用户的上传记录
    addListener(showHistoryBtn, 'click', async ()=>{
      const listEl = document.getElementById('mac-list');
      try {
        const data = await API.listMac();
        if(listEl){
          if(data.list && data.list.length > 0){
            listEl.innerHTML = data.list.map(r=>`<li><span>${r.mac}</span><span class="badge">${r.batch}</span><span style="font-size:11px;color:var(--text-2);margin-left:8px">${new Date(r.ts).toLocaleString('zh-CN')}</span></li>`).join('');
            API.toast(`显示全部 ${data.list.length} 条历史记录`);
          } else {
            listEl.innerHTML = '<li>暂无历史记录</li>';
          }
        }
      } catch(e) {
        API.toast('加载历史记录失败');
        if(listEl) listEl.innerHTML = '<li>加载失败</li>';
      }
    });
    
    // 清空显示按钮
    addListener(clearDisplayBtn, 'click', ()=>{
      const listEl = document.getElementById('mac-list');
      if(listEl){
        listEl.innerHTML = '<li>已清空显示</li>';
        API.toast('已清空显示（历史记录仍保留）');
      }
    });
    
    addListener(btn, 'click', async ()=>{
      const file = fileEl.files[0];
      if(!file){
        API.toast('请选择文件');
        return;
      }
      
      const typeEl = document.getElementById('mac-type');
      const uploadType = typeEl ? typeEl.value : 'pdd';
      const logContainer = document.getElementById('upload-log');
      const logPre = logContainer ? logContainer.querySelector('pre') : null;
      
      try{
        btn.disabled = true;
        if(logContainer) logContainer.style.display = 'block';
        if(logPre) logPre.textContent = '正在上传文件...\n';
        
        const formData = new FormData();
        formData.append('file', file);
        formData.append('type', uploadType);
        
        const res = await fetch('/api/upload/mac-file', {
          method: 'POST',
          body: formData
        });
        
        const result = await res.json();
        
        if(logPre){
          logPre.textContent = result.output || '上传完成';
        }
        
        if(result.ok){
          API.toast('上传成功');
          
          // 解析并显示成功上传的记录
          const output = result.output || '';
          const jsonMatch = output.match(/=== 成功导入的数据 ===\n([\s\S]*?)\n=== 数据输出结束 ===/);
          if(jsonMatch && jsonMatch[1]){
            try{
              const records = JSON.parse(jsonMatch[1].trim());
              if(records.length > 0){
                // 保存到历史记录
                saveToHistory(records);
                
                // 显示最新记录
                const listEl = document.getElementById('mac-list');
                if(listEl){
                  listEl.innerHTML = records.map(r=>`<li><span>${r.mac}</span><span class="badge">${r.batch}</span></li>`).join('');
                }
              }
            }catch(e){
              console.error('解析上传记录失败:', e);
            }
          }
        } else {
          API.toast(result.error || '上传失败');
        }
        
        if(fileEl) fileEl.value = '';
      }catch(e){
        API.toast('上传失败: ' + e.message);
        if(logPre) logPre.textContent += '\n错误: ' + e.message;
      } finally {
        if (btn) btn.disabled = false;
      }
    });
  }

  async function bindStatsEvents(){
    const STATS_STORAGE_KEY = 'stats_upload_history';
    
    const getStatsHistory = () => {
      try {
        return JSON.parse(localStorage.getItem(STATS_STORAGE_KEY) || '[]');
      } catch {
        return [];
      }
    };
    
    const saveToStatsHistory = (record) => {
      try {
        const history = getStatsHistory();
        const newRecord = {
          ...record,
          timestamp: new Date().toISOString()
        };
        const updated = [newRecord, ...history].slice(0, 100);
        localStorage.setItem(STATS_STORAGE_KEY, JSON.stringify(updated));
      } catch (e) {
        console.error('保存历史记录失败:', e);
      }
    };
    
    const btn = document.getElementById('stats-upload');
    const showHistoryBtn = document.getElementById('stats-show-history');
    const clearDisplayBtn = document.getElementById('stats-clear-display');
    
    // 查看历史按钮 - 从服务器获取所有用户的上传记录
    addListener(showHistoryBtn, 'click', async ()=>{
      const listEl = document.getElementById('stats-list');
      try {
        const data = await API.listStats();
        if(listEl){
          if(data.list && data.list.length > 0){
            listEl.innerHTML = data.list.map(r=>{
              const platformName = {pdd: '拼多多', yt: '圆通', tx: '兔喜'}[r.platform] || '';
              const platformText = platformName ? `${platformName} - ` : '';
              let html = `<li><span>${platformText}直通良:${r.fpy_good||0} 良:${r.good} 不良:${r.bad}</span>`;
              html += `<span style="font-size:11px;color:var(--text-2);margin-left:8px">${new Date(r.ts).toLocaleString('zh-CN')}</span></li>`;
              return html;
            }).join('');
            API.toast(`显示全部 ${data.list.length} 条历史记录`);
          } else {
            listEl.innerHTML = '<li>暂无历史记录</li>';
          }
        }
      } catch(e) {
        API.toast('加载历史记录失败');
        if(listEl) listEl.innerHTML = '<li>加载失败</li>';
      }
    });
    
    // 清空显示按钮
    addListener(clearDisplayBtn, 'click', ()=>{
      const listEl = document.getElementById('stats-list');
      if(listEl){
        listEl.innerHTML = '<li>已清空显示</li>';
        API.toast('已清空显示（历史记录仍保留）');
      }
    });
    
    addListener(btn, 'click', async ()=>{
      const platform = document.getElementById('stats-platform').value;
      const fpyGood=parseInt(document.getElementById('fpy-good-count').value||'0',10);
      const good=parseInt(document.getElementById('good-count').value||'0',10);
      const bad=parseInt(document.getElementById('bad-count').value||'0',10);
      const detailsText = document.getElementById('bad-details')?.value.trim() || '';
      
      if(fpyGood<0||good<0||bad<0){return API.toast('数量不能为负数')}
      
      // 解析不良明细
      const details = [];
      if(detailsText){
        const lines = detailsText.split('\n').filter(l => l.trim());
        for(const line of lines){
          const [mac, batch] = line.split(',').map(s => s.trim());
          if(mac && batch){
            details.push({mac, batch});
          }
        }
      }
      
      btn.disabled = true;
      try{
        await API.uploadStats({platform, fpy_good: fpyGood, good, bad, details});
        API.toast('上传成功');
        
        // 保存到历史记录
        saveToStatsHistory({platform, fpy_good: fpyGood, good, bad, details});
        
        // 显示最新记录
        const listEl=document.getElementById('stats-list');
        if(listEl){
          const platformName = {pdd: '拼多多', yt: '圆通', tx: '兔喜'}[platform] || platform;
          let html = `<li><span>${platformName} - 直通良:${fpyGood} 良:${good} 不良:${bad}</span>`;
          if(details.length > 0){
            html += `<span class="badge">${details.length}条明细</span>`;
          }
          html += '</li>';
          listEl.innerHTML = html;
        }
        
        // 清空输入
        document.getElementById('fpy-good-count').value = '';
        document.getElementById('good-count').value = '';
        document.getElementById('bad-count').value = '';
        document.getElementById('bad-details').value = '';
      }catch(e){
        API.toast('上传失败');
      } finally {
        if (btn) btn.disabled = false;
      }
    });
  }

  async function bindRepairsEvents(){
    const btn = document.getElementById('repairs-upload');
    const showAllBtn = document.getElementById('repairs-show-all');
    
    // 查看全部按钮
    addListener(showAllBtn, 'click', async ()=>{
      const listEl = document.getElementById('repairs-list');
      const data = await API.listRepairs().catch(()=>({list:[]}));
      if(listEl){
        if(data.list && data.list.length > 0){
          listEl.innerHTML = data.list.map(r=>{
            const ts = new Date(r.ts).toLocaleString('zh-CN');
            return `<li><span>数量: ${r.qty}</span><span class="badge">${r.note||'无备注'}</span><span style="font-size:11px;color:var(--text-2)">${ts}</span></li>`;
          }).join('');
          API.toast(`显示全部 ${data.list.length} 条记录`);
        } else {
          listEl.innerHTML = '<li>暂无记录</li>';
        }
      }
    });
    
    addListener(btn, 'click', async ()=>{
      const qty = parseInt(document.getElementById('repair-qty').value||'0', 10);
      const note = document.getElementById('repair-note')?.value.trim() || '';
      
      if(qty <= 0){
        return API.toast('请输入有效的返修数量');
      }
      
      btn.disabled = true;
      try{
        await API.uploadRepairs({qty, note});
        API.toast('上传成功');
        
        // 刷新列表
        const listEl = document.getElementById('repairs-list');
        const data = await API.listRepairs().catch(()=>({list:[]}));
        if(listEl){
          listEl.innerHTML = (data.list||[]).slice(0,10).map(r=>{
            const ts = new Date(r.ts).toLocaleString('zh-CN');
            return `<li><span>数量: ${r.qty}</span><span class="badge">${r.note||'无备注'}</span><span style="font-size:11px;color:var(--text-2)">${ts}</span></li>`;
          }).join('')||'<li>暂无数据</li>';
        }
        
        // 清空输入
        document.getElementById('repair-qty').value = '';
        document.getElementById('repair-note').value = '';
      }catch(e){
        API.toast('上传失败');
      } finally {
        if (btn) btn.disabled = false;
      }
    });
  }

  async function bindDefectsEvents(){
    const btn = document.getElementById('defects-upload');
    addListener(btn, 'click', async ()=>{
      try{
        const fileEl=document.getElementById('defects-file');
        const manual=document.getElementById('defects-manual').value.trim();
        let rows=[];
        if(fileEl.files[0]){
          const text=await readText(fileEl.files[0]);
          rows=text.split(/\n+/).map(l=>l.split(','));
          rows=rows.map(([mac,batch])=>({mac,batch}));
        }else if(manual){
          rows=parseManual(manual);
        }
        if(!rows.length){throw new Error('请提供文件或手动输入')}
        btn.disabled = true;
        await API.uploadDefects({rows});
        API.toast('上传成功');
        const listEl=document.getElementById('defects-list');
        const data=await API.listDefects().catch(()=>({list:[]}));
        if(listEl) listEl.innerHTML=(data.list||[]).slice(0,10).map(r=>`<li><span>${r.mac}</span><span class="badge">${r.batch}</span></li>`).join('')||'<li>暂无数据</li>';
      }catch(e){
        API.toast('上传失败');
      } finally {
        if (btn) btn.disabled = false;
      }
    });
  }
})();