{% extends "base.html" %}
{% block title %}物料{% endblock %}
{% block content %}
<div class="toolbar">
  <form method="get" class="search">
    <input name="q" value="{{ q }}" placeholder="搜索物料编号 / 型号">
    <button>搜索</button>
  </form>
  <div>
    <a class="btn" href="{{ url_for('download_template', kind='materials') }}">⬇ 下载模板</a>
    <button class="primary" type="button" onclick="openBatch()">⊞ 批量导入窗口</button>
  </div>
</div>

<table class="tbl">
  <thead>
    <tr><th>物料编号</th><th>型号 / 规格</th><th>单位</th><th>安全库存</th><th>在库</th><th>入库总数量</th><th>消耗总数量</th><th>操作</th></tr>
  </thead>
  <tbody>
    {% for m in mats %}
    <tr>
      <td>{{ m.part_number }}</td>
      <td>{{ m.manufacturer or '-' }}</td>
      <td>{{ m.unit }}</td>
      <td class="num">{{ '%.2f'|format(m.safety_stock or 0) }}</td>
      <td class="num">{{ '%.2f'|format(sm.get(m.id, 0)) }}</td>
      <td class="num">{{ '%.2f'|format(inb_total.get(m.id, 0)) }}</td>
      <td class="num">{{ '%.2f'|format(out_total.get(m.id, 0)) }}</td>
      <td>
        <a href="{{ url_for('material_detail', mid=m.id) }}">明细</a>
        <a href="{{ url_for('material_edit', mid=m.id) }}">编辑</a>
      </td>
    </tr>
    {% else %}
    <tr><td colspan="8" class="muted">没有匹配的物料</td></tr>
    {% endfor %}
  </tbody>
</table>

<!-- 批量导入窗口(模态) -->
<div class="modal-mask" id="batchMask" style="display:none">
  <div class="modal">
    <div class="modal-head">
      <span>批量导入物料 · 多行清单</span>
      <button class="x" onclick="closeBatch()">✕</button>
    </div>
    <div class="modal-body">
      <p class="small muted">每行一条: <b>物料编号 型号/规格 单位 安全库存(可选) 期初库存(可选)</b>，列之间用空格或制表符分隔。也可直接上传 Excel/CSV。</p>
      <textarea id="batchText" rows="9" placeholder="P0001 示例型号A 个 100 500
P0002 示例型号B 卷 50 200"></textarea>
      <div class="row-actions">
        <button type="button" onclick="parsePaste()">解析预览</button>
        <label class="btn" style="cursor:pointer">📁 上传文件
          <input type="file" id="batchFile" accept=".xlsx,.csv" style="display:none" onchange="parseFile()">
        </label>
        <button type="button" class="primary" id="commitBtn" onclick="commitBatch()" disabled>确认导入</button>
      </div>
      <div id="batchResult" style="margin-top:12px"></div>
    </div>
  </div>
</div>

<script>
let lastRows = [];

function openBatch(){ document.getElementById('batchMask').style.display='flex'; }
function closeBatch(){ document.getElementById('batchMask').style.display='none'; }
document.getElementById('batchMask').addEventListener('click', e=>{ if(e.target.id==='batchMask') closeBatch(); });

function parsePaste(){
  const text = document.getElementById('batchText').value.trim();
  if(!text){ alert('请先粘贴清单'); return; }
  postPreview({text: text});
}
function parseFile(){
  const f = document.getElementById('batchFile').files[0];
  if(!f) return;
  const fd = new FormData();
  fd.append('file', f);
  fetch('/api/import/materials/preview', {method:'POST', body:fd})
    .then(r=>r.json()).then(renderPreview).catch(e=>alert('解析失败: '+e));
}
function postPreview(payload){
  fetch('/api/import/materials/preview', {
    method:'POST', headers:{'Content-Type':'application/json'},
    body:JSON.stringify(payload)
  }).then(r=>r.json()).then(renderPreview).catch(e=>alert('解析失败: '+e));
}
function renderPreview(data){
  lastRows = data.rows || [];
  const valid = data.valid, invalid = data.invalid;
  let html = `<div class="flash ${invalid? 'error':'ok'}">共 ${lastRows.length} 行 · 可导入 <b>${valid}</b> 行 · 异常 <b>${invalid}</b> 行</div>`;
  html += '<table class="tbl"><thead><tr><th>物料编号</th><th>型号</th><th>单位</th><th>安全库存</th><th>期初库存</th><th>校验</th></tr></thead><tbody>';
  lastRows.forEach(r=>{
    const cls = r.ok? '' : 'row-danger';
    const tag = r.ok? (r.exists? '<span class="badge warn">更新</span>' : '<span class="badge ok">新增</span>')
                    : `<span class="badge danger">${r.error||'错误'}</span>`;
    html += `<tr class="${cls}"><td>${r.part_number||''}</td><td>${r.manufacturer||'-'}</td><td>${r.unit||'个'}</td><td class="num">${r.safety_stock}</td><td class="num">${r.opening_stock}</td><td>${tag}</td></tr>`;
  });
  html += '</tbody></table>';
  document.getElementById('batchResult').innerHTML = html;
  document.getElementById('commitBtn').disabled = valid===0;
}
function commitBatch(){
  if(!lastRows.length) return;
  fetch('/api/import/materials/commit', {
    method:'POST', headers:{'Content-Type':'application/json'},
    body:JSON.stringify({rows: lastRows})
  }).then(r=>r.json()).then(d=>{
    alert(`导入完成: 新增 ${d.added} 条, 更新 ${d.updated} 条`);
    if(d.added+d.updated>0) location.reload();
  }).catch(e=>alert('导入失败: '+e));
}
</script>
{% endblock %}