feat: batch delete

static/app.css

@@ -92,6 +92,8 @@
   .btn:disabled { background: var(--text-dim); cursor: not-allowed; }
   .btn.ghost { background: var(--panel-2); }
   .btn.danger { background: var(--danger); }
+  .btn.ghost.danger { background: var(--panel-2); color: var(--danger); border: 1px solid var(--danger); }
+  .btn.ghost.danger:hover { background: var(--danger); color: #0f1115; }
   .btn-row { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; align-items: center; }
 
   /* Progress */

static/app.js

@@ -21,13 +21,15 @@ const checkAll     = $('checkAll');
 const checkAllWrap = $('checkAllWrap');
 const batchBtn     = $('batchBtn');
 const batchCount   = $('batchCount');
+const batchDeleteBtn  = $('batchDeleteBtn');
+const batchDeleteCount= $('batchDeleteCount');
 
 // pending[i] = { id, file, xhr, status: 'pending'|'uploading'|'done'|'error'|'cancelled', progress, error }
 let pending = [];
 let nextId = 1;
 let isUploading = false;
 
-// selectedFiles 在 batch.js 顶层 var 声明, 同 <script> 内共享.
+// selectedFiles 在 batch.js 顶层 var 声明, 跨文件共享 (classic <script> 加载顺序: app.js → helpers.js → batch.js).
 
 // ---------------------------------------------------------------------------
 // Toast

static/batch.js

@@ -1,9 +1,9 @@
 'use strict';
 
 // ---------------------------------------------------------------------------
-// 批量选择 / 批量下载 (依赖 app.js 的 consts: checkAll, checkAllWrap,
-// batchBtn, batchCount, filesList, toast)
-// 用 var 顶层声明, 与 app.js 同 <script> 内共享 (loadFiles / fileRow 读写).
+// 批量选择 / 批量下载 / 批量删除 (依赖 app.js 的 consts: checkAll, checkAllWrap,
+// batchBtn, batchCount, batchDeleteBtn, batchDeleteCount, filesList, toast)
+// 用 var 顶层声明, 跨文件共享 (classic <script> 加载顺序: app.js → helpers.js → batch.js).
 // ---------------------------------------------------------------------------
 var selectedFiles = new Set();
 
@@ -17,6 +17,8 @@ function updateBatchUI() {
   const n = selectedFiles.size;
   batchCount.textContent = n;
   batchBtn.style.display = n > 0 ? 'inline-block' : 'none';
+  batchDeleteCount.textContent = n;
+  batchDeleteBtn.style.display = n > 0 ? 'inline-block' : 'none';
 
   const checks = filesList.querySelectorAll('.file-check');
   if (checks.length === 0) {
@@ -81,8 +83,37 @@ batchBtn.addEventListener('click', async () => {
   }
 });
 
+batchDeleteBtn.addEventListener('click', async () => {
+  if (selectedFiles.size === 0) return;
+  const names = [...selectedFiles];
+  if (!confirm(`确定删除选中的 ${names.length} 个文件吗? 该操作不可恢复.`)) return;
+  batchDeleteBtn.disabled = true;
+  const restore = () => { batchDeleteBtn.disabled = false; batchDeleteBtn.textContent = `批量删除 (${selectedFiles.size})`; };
+  batchDeleteBtn.textContent = '删除中...';
+  try {
+    const r = await fetch('/files-delete', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ files: names }),
+    });
+    if (!r.ok) {
+      let msg = 'HTTP ' + r.status;
+      try { msg = (await r.json()).error || msg; } catch {}
+      throw new Error(msg);
+    }
+    const data = await r.json();
+    toast(`已删除 ${data.deleted} 个文件`, 'success');
+    selectedFiles.clear();
+    await loadFiles();
+  } catch (e) {
+    toast('批量删除失败: ' + e.message, 'error');
+  } finally {
+    restore();
+  }
+});
+
 // ---------------------------------------------------------------------------
 // Boot (从 app.js 末尾移过来, 确保 selectedFiles 已声明再启动首次 loadFiles)
 // ---------------------------------------------------------------------------
 loadFiles();
-setInterval(loadFiles, 30000);
+setInterval(loadFiles, 30000);

static/helpers.js

@@ -2,7 +2,7 @@
 
 // ---------------------------------------------------------------------------
 // 纯函数 + 倒计时 interval
-// 与 app.js 同 <script> 内共享 (load order: app → helpers → batch).
+// 跨文件共享 (classic <script> 加载顺序: app.js → helpers.js → batch.js).
 // ---------------------------------------------------------------------------
 
 function formatRemain(iso) {

static/index.html.tpl

@@ -4,8 +4,7 @@
 <meta charset="UTF-8" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <title>临时文件上传 · TTL 24h</title>
-<style>
-/*EMBED_CSS*/</style>
+<link rel="stylesheet" href="/static/app.css" />
 </head>
 <body>
 <div class="container">
@@ -42,6 +41,7 @@
         </label>
         <span class="meta" id="filesMeta">加载中...</span>
         <button class="btn ghost batch-btn" id="batchBtn" style="display:none">批量下载 (<span id="batchCount">0</span>)</button>
+        <button class="btn ghost batch-btn danger" id="batchDeleteBtn" style="display:none">批量删除 (<span id="batchDeleteCount">0</span>)</button>
       </div>
     </div>
     <div class="quota-wrap" id="quotaWrap" style="display:none">
@@ -62,7 +62,8 @@
 
 <div class="toast" id="toast"></div>
 
-<script>
-/*EMBED_JS*/</script>
+<script src="/static/app.js"></script>
+<script src="/static/helpers.js"></script>
+<script src="/static/batch.js"></script>
 </body>
 </html>