feat: Enhance email domain configuration and management

app/api/config/route.ts

@@ -4,18 +4,33 @@ import { getRequestContext } from "@cloudflare/next-on-pages"
 export const runtime = "edge"
 
 export async function GET() {
-  const config = await getRequestContext().env.SITE_CONFIG.get("DEFAULT_ROLE")
+  const env = getRequestContext().env
+  const [defaultRole, emailDomains] = await Promise.all([
+    env.SITE_CONFIG.get("DEFAULT_ROLE"),
+    env.SITE_CONFIG.get("EMAIL_DOMAINS")
+  ])
 
-  return Response.json({ defaultRole: config || ROLES.CIVILIAN })
+  return Response.json({ 
+    defaultRole: defaultRole || ROLES.CIVILIAN,
+    emailDomains: emailDomains || ""
+  })
 }
 
 export async function POST(request: Request) {
-  const { defaultRole } = await request.json() as { defaultRole: Exclude<Role, typeof ROLES.EMPEROR> }
+  const { defaultRole, emailDomains } = await request.json() as { 
+    defaultRole: Exclude<Role, typeof ROLES.EMPEROR>,
+    emailDomains: string
+  }
   
   if (![ROLES.KNIGHT, ROLES.CIVILIAN].includes(defaultRole)) {
     return Response.json({ error: "无效的角色" }, { status: 400 })
   }
 
-  await getRequestContext().env.SITE_CONFIG.put("DEFAULT_ROLE", defaultRole)
+  const env = getRequestContext().env
+  await Promise.all([
+    env.SITE_CONFIG.put("DEFAULT_ROLE", defaultRole),
+    env.SITE_CONFIG.put("EMAIL_DOMAINS", emailDomains)
+  ])
+
   return Response.json({ success: true })
 } 

app/api/emails/domains/route.ts

@@ -1,20 +1,13 @@
-import { EMAIL_CONFIG } from "@/config"
+import { getRequestContext } from "@cloudflare/next-on-pages"
 import { NextResponse } from "next/server"
 
 export const runtime = "edge"
 
 export async function GET() {
   try {
-    const domains = EMAIL_CONFIG.DOMAINS
+    const domainString = await getRequestContext().env.SITE_CONFIG.get("EMAIL_DOMAINS")
 
-    if (domains.length === 0) {
-      return NextResponse.json(
-        { error: "无效的域名列表" },
-        { status: 400 }
-      )
-    }
-
-    return NextResponse.json({ domains })
+    return NextResponse.json({ domains: domainString ? domainString.split(',') : ["moemail.app"] })
   } catch (error) {
     console.error('Failed to fetch domains:', error)
     return NextResponse.json(

app/api/emails/generate/route.ts

@@ -6,6 +6,7 @@ import { emails } from "@/lib/schema"
 import { eq, and, gt, sql } from "drizzle-orm"
 import { EXPIRY_OPTIONS } from "@/types/email"
 import { EMAIL_CONFIG } from "@/config"
+import { getRequestContext } from "@cloudflare/next-on-pages"
 
 export const runtime = "edge"
 
@@ -14,7 +15,6 @@ export async function POST(request: Request) {
   const session = await auth()
 
   try {
-    // Check current number of active emails for user
     const activeEmailsCount = await db
       .select({ count: sql<number>`count(*)` })
       .from(emails)
@@ -45,7 +45,10 @@ export async function POST(request: Request) {
       )
     }
 
-    if (!EMAIL_CONFIG.DOMAINS.includes(domain)) {
+    const domainString = await getRequestContext().env.SITE_CONFIG.get("EMAIL_DOMAINS")
+    const domains = domainString ? domainString.split(',') : ["moemail.app"]
+
+    if (!domains || !domains.includes(domain)) {
       return NextResponse.json(
         { error: "无效的域名" },
         { status: 400 }