refactor: Consolidate configuration management with Zustand store

app/hooks/use-admin-contact.ts

@@ -1,38 +0,0 @@
-"use client"
-
-import { useState, useEffect } from "react"
-import { useToast } from "@/components/ui/use-toast"
-
-export function useAdminContact() {
-  const [adminContact, setAdminContact] = useState("")
-  const [loading, setLoading] = useState(true)
-  const { toast } = useToast()
-
-  const fetchAdminContact = async () => {
-    try {
-      const res = await fetch("/api/admin-contact")
-      if (!res.ok) throw new Error("获取管理员联系方式失败")
-      const data = await res.json() as { adminContact: string }
-      setAdminContact(data.adminContact)
-    } catch (error) {
-      console.error(error)
-      toast({
-        title: "获取失败",
-        description: "获取管理员联系方式失败",
-        variant: "destructive"
-      })
-    } finally {
-      setLoading(false)
-    }
-  }
-
-  useEffect(() => {
-    fetchAdminContact()
-  }, [])
-
-  return {
-    adminContact,
-    loading,
-    refreshAdminContact: fetchAdminContact
-  }
-} 

app/hooks/use-config.ts

@@ -0,0 +1,62 @@
+"use client"
+
+import { create } from "zustand"
+import { Role, ROLES } from "@/lib/permissions"
+import { EMAIL_CONFIG } from "@/config"
+import { useEffect } from "react"
+
+interface Config {
+  defaultRole: Exclude<Role, typeof ROLES.EMPEROR>
+  emailDomains: string
+  emailDomainsArray: string[]
+  adminContact: string
+  maxEmails: number
+}
+
+interface ConfigStore {
+  config: Config | null
+  loading: boolean
+  error: string | null
+  fetch: () => Promise<void>
+}
+
+const useConfigStore = create<ConfigStore>((set) => ({
+  config: null,
+  loading: false,
+  error: null,
+  fetch: async () => {
+    try {
+      set({ loading: true, error: null })
+      const res = await fetch("/api/config")
+      if (!res.ok) throw new Error("获取配置失败")
+      const data = await res.json() as Config
+      set({
+        config: {
+          defaultRole: data.defaultRole || ROLES.CIVILIAN,
+          emailDomains: data.emailDomains,
+          emailDomainsArray: data.emailDomains.split(','),
+          adminContact: data.adminContact || "",
+          maxEmails: Number(data.maxEmails) || EMAIL_CONFIG.MAX_ACTIVE_EMAILS
+        },
+        loading: false
+      })
+    } catch (error) {
+      set({ 
+        error: error instanceof Error ? error.message : "获取配置失败",
+        loading: false 
+      })
+    }
+  }
+}))
+
+export function useConfig() {
+  const store = useConfigStore()
+
+  useEffect(() => {
+    if (!store.config && !store.loading) {
+      store.fetch()
+    }
+  }, [store.config, store.loading])
+
+  return store
+}