更新邮件服务和SMTP配置功能

admin-frontend/src/api/smtp.js

@@ -30,3 +30,7 @@ export async function setPrimarySmtpConfig(configId) {
   return data
 }
 
+export async function clearPrimarySmtpConfig() {
+  const { data } = await api.post('/smtp/configs/primary/clear')
+  return data
+}

admin-frontend/src/pages/EmailPage.vue

@@ -5,6 +5,7 @@ import { ElMessage, ElMessageBox } from 'element-plus'
 import { cleanupEmailLogs, fetchEmailLogs, fetchEmailSettings, fetchEmailStats, updateEmailSettings } from '../api/email'
 import {
   createSmtpConfig,
+  clearPrimarySmtpConfig,
   deleteSmtpConfig,
   fetchSmtpConfigs,
   setPrimarySmtpConfig,
@@ -85,6 +86,7 @@ const smtpConfigs = ref([])
 const smtpDialogOpen = ref(false)
 const smtpEditMode = ref(false)
 const smtpHasPassword = ref(false)
+const smtpIsPrimary = ref(false)
 
 const smtpForm = reactive({
   id: null,
@@ -231,6 +233,7 @@ function resetSmtpForm() {
   smtpForm.daily_limit = 0
   smtpForm.priority = 0
   smtpHasPassword.value = false
+  smtpIsPrimary.value = false
   smtpTemplateKey.value = 'custom'
 }
 
@@ -270,6 +273,7 @@ function openEditSmtp(row) {
   smtpForm.daily_limit = row.daily_limit ?? 0
   smtpForm.priority = row.priority ?? 0
   smtpHasPassword.value = Boolean(row.has_password)
+  smtpIsPrimary.value = Boolean(row.is_primary)
   smtpTemplateKey.value = inferSmtpTemplateKey(row)
 
   smtpDialogOpen.value = true
@@ -398,6 +402,32 @@ async function doSetPrimary() {
   }
 }
 
+async function doClearPrimary() {
+  if (!smtpEditMode.value) return
+  try {
+    await ElMessageBox.confirm('确定取消主配置吗？取消后将按优先级选择可用SMTP。', '取消主配置', {
+      confirmButtonText: '取消主配置',
+      cancelButtonText: '保留',
+      type: 'warning',
+    })
+  } catch {
+    return
+  }
+
+  try {
+    const res = await clearPrimarySmtpConfig()
+    if (!res?.success) {
+      ElMessage.error(res?.error || '操作失败')
+      return
+    }
+    ElMessage.success('已取消主配置')
+    smtpDialogOpen.value = false
+    await loadSmtpConfigs()
+  } catch {
+    // handled by interceptor
+  }
+}
+
 async function doDeleteSmtp() {
   if (!smtpEditMode.value || !smtpForm.id) return
   try {
@@ -781,7 +811,8 @@ onMounted(refreshAll)
       <template #footer>
         <div class="dialog-actions">
           <el-button @click="doTestSmtp">测试连接</el-button>
-          <el-button v-if="smtpEditMode" @click="doSetPrimary">设为主配置</el-button>
+          <el-button v-if="smtpEditMode && smtpIsPrimary" type="warning" plain @click="doClearPrimary">取消主配置</el-button>
+          <el-button v-if="smtpEditMode && !smtpIsPrimary" @click="doSetPrimary">设为主配置</el-button>
           <el-button v-if="smtpEditMode" type="danger" plain @click="doDeleteSmtp">删除配置</el-button>
           <div class="spacer"></div>
           <el-button @click="smtpDialogOpen = false">取消</el-button>