feat: add instance management to dashboard

public/app.js

@@ -31,6 +31,31 @@ function boolText(v) {
 }
 function activeInstance() { return instances.find(x => x.id === activeId) }
 function activeStatus() { return statuses.get(activeId) }
+function tagsFromInput(text) { return String(text || '').split(',').map(x => x.trim()).filter(Boolean) }
+function instancePayloadFromForm() {
+  return {
+    id: $('instanceIdInput').value.trim(),
+    name: $('instanceNameInput').value.trim(),
+    url: $('instanceUrlInput').value.trim(),
+    description: $('instanceDescInput').value.trim(),
+    tags: tagsFromInput($('instanceTagsInput').value),
+    auth: { password: $('instancePasswordInput').value },
+  }
+}
+function setActiveHome() {
+  activeId = null
+  localStorage.removeItem('multi-simadmin-active')
+  $('loginBtn').disabled = true
+  $('openExternal').href = '#'
+  $('openExternal').classList.add('disabled')
+  $('emptyState').hidden = false
+  $('frame').hidden = true
+  $('frame').removeAttribute('src')
+  switchView('dashboard')
+  renderInstances()
+  renderOverview()
+  renderFeatures()
+}
 function statusKind(s) {
   if (!s) return 'unknown'
   if (!s.reachable) return 'offline'
@@ -99,7 +124,7 @@ function renderInstances() {
   const root = $('instances')
   renderFleetStats()
   if (!instances.length) {
-    root.innerHTML = '<section class="empty-state"><h3>未配置实例</h3><p>请编辑 config.json 添加 instances，并重启服务。</p></section>'
+    root.innerHTML = '<section class="empty-state mini-empty"><h3>未配置设备</h3><p>点击上方“添加设备地址”即可新增 CPE / SimAdmin 地址。</p></section>'
     return
   }
   const list = filteredInstances()
@@ -120,6 +145,10 @@ function renderInstances() {
         </div>
         <span class="status-pill ${pillClass(s)}">${escapeHtml(statusText(s))}</span>
       </div>
+      <div class="instance-card-actions">
+        <button type="button" class="mini-action" data-edit-id="${escapeHtml(item.id)}">编辑</button>
+        <button type="button" class="mini-action danger" data-delete-id="${escapeHtml(item.id)}">删除</button>
+      </div>
       ${item.description ? `<p class="instance-desc">${escapeHtml(item.description)}</p>` : ''}
       <div class="mini-grid">
         <span>认证<b>${item.auth?.hasPassword ? '密码会话' : '无密码'}</b></span>
@@ -129,7 +158,12 @@ function renderInstances() {
       </div>
     </article>`
   }).join('')
-  $$('.instance-card', root).forEach(card => card.addEventListener('click', () => selectInstance(card.dataset.id)))
+  $$('.instance-card', root).forEach(card => card.addEventListener('click', (event) => {
+    if (event.target.closest('button')) return
+    selectInstance(card.dataset.id)
+  }))
+  $$('[data-edit-id]', root).forEach(btn => btn.addEventListener('click', () => openInstanceDialog(btn.dataset.editId)))
+  $$('[data-delete-id]', root).forEach(btn => btn.addEventListener('click', () => deleteInstance(btn.dataset.deleteId)))
 }
 
 function renderHero() {
@@ -248,7 +282,63 @@ function selectInstance(id) {
   renderFeatures()
 }
 
-async function loadConfig() {
+function openInstanceDialog(id = '') {
+  const item = id ? instances.find(x => x.id === id) : null
+  $('instanceOriginalId').value = item?.id || ''
+  $('instanceFormRibbon').textContent = item ? '编辑设备地址' : '添加设备地址'
+  $('instanceIdInput').value = item?.id || ''
+  $('instanceNameInput').value = item?.name || ''
+  $('instanceUrlInput').value = item?.url || ''
+  $('instanceDescInput').value = item?.description || ''
+  $('instanceTagsInput').value = (item?.tags || []).join(', ')
+  $('instancePasswordInput').value = ''
+  $('instancePasswordInput').placeholder = item?.auth?.hasPassword ? '留空将清除已保存密码；输入新密码可替换' : '留空表示无密码'
+  $('deleteInstanceBtn').hidden = !item
+  $('instanceDialog').showModal()
+  setTimeout(() => (item ? $('instanceNameInput') : $('instanceIdInput')).focus(), 50)
+}
+
+async function reloadConfigAndRefresh({ selectId = activeId, toast = '' } = {}) {
+  await loadConfig({ preserveSelection: selectId })
+  await refreshStatus({ silent: true })
+  if (selectId && instances.some(x => x.id === selectId)) selectInstance(selectId)
+  else setActiveHome()
+  if (toast) showToast(toast)
+}
+
+async function saveInstanceFromForm() {
+  const originalId = $('instanceOriginalId').value
+  const payload = instancePayloadFromForm()
+  const method = originalId ? 'PUT' : 'POST'
+  const url = originalId ? `/api/instances/${encodeURIComponent(originalId)}` : '/api/instances'
+  const res = await fetch(url, { method, headers: { 'content-type': 'application/json' }, body: JSON.stringify(payload) })
+  const data = await res.json().catch(() => ({}))
+  if (!res.ok) throw new Error(data.error || `保存失败：HTTP ${res.status}`)
+  $('instanceDialog').close()
+  await reloadConfigAndRefresh({ selectId: data.instance?.id || payload.id, toast: originalId ? '设备地址已更新' : '设备地址已添加' })
+}
+
+async function deleteInstance(id) {
+  const item = instances.find(x => x.id === id)
+  if (!item) return
+  if (!confirm(`确定删除设备“${item.name || item.id}”？\n配置会立即写入 config.json。`)) return
+  const res = await fetch(`/api/instances/${encodeURIComponent(id)}`, { method: 'DELETE' })
+  const data = await res.json().catch(() => ({}))
+  if (!res.ok) {
+    showToast(data.error || `删除失败：HTTP ${res.status}`, 4200)
+    return
+  }
+  await reloadConfigAndRefresh({ selectId: null, toast: '设备地址已删除' })
+}
+
+async function deleteCurrentInstanceFromDialog() {
+  const id = $('instanceOriginalId').value
+  if (!id) return
+  $('instanceDialog').close()
+  await deleteInstance(id)
+}
+
+async function loadConfig({ preserveSelection = activeId } = {}) {
   const [configRes, catalogRes] = await Promise.all([fetch('/api/config'), fetch('/api/catalog')])
   if (!configRes.ok) throw new Error(`配置读取失败：HTTP ${configRes.status}`)
   const data = await configRes.json()
@@ -256,8 +346,8 @@ async function loadConfig() {
   configPath = data.configPath || 'config.json'
   $('configPath').textContent = configPath
   if (catalogRes.ok) catalog = (await catalogRes.json()).groups || []
-  const saved = localStorage.getItem('multi-simadmin-active')
-  if (saved && instances.some(x => x.id === saved)) activeId = saved
+  const saved = preserveSelection || localStorage.getItem('multi-simadmin-active')
+  activeId = saved && instances.some(x => x.id === saved) ? saved : null
   renderEndpointList()
   renderInstances()
   renderOverview()
@@ -340,6 +430,8 @@ async function runEndpoint() {
 
 function bindEvents() {
   $('refreshBtn').addEventListener('click', () => refreshStatus())
+  $('homeBtn').addEventListener('click', setActiveHome)
+  $('addInstanceBtn').addEventListener('click', () => openInstanceDialog())
   $('loginBtn').addEventListener('click', loginActive)
   $('runEndpoint').addEventListener('click', runEndpoint)
   $('instanceSearch').addEventListener('input', renderInstances)
@@ -364,6 +456,15 @@ function bindEvents() {
     else showToast('会话已刷新')
     await refreshStatus({ silent: true })
   })
+  $('instanceForm').addEventListener('submit', async (event) => {
+    event.preventDefault()
+    try {
+      await saveInstanceFromForm()
+    } catch (error) {
+      showToast(error.message || '保存失败', 5200)
+    }
+  })
+  $('deleteInstanceBtn').addEventListener('click', deleteCurrentInstanceFromDialog)
   $('endpointInput').addEventListener('keydown', (event) => {
     if (event.key === 'Enter') runEndpoint()
   })