fix(alerts): защитить тест правила общим замком Telegram

hooks/use-alerts-telegram-preview.ts

@@ -0,0 +1,34 @@
+"use client"
+import {useEffect,useRef,useState,useSyncExternalStore} from "react"
+import {testTelegramSchema,type TestTelegramBody} from "@mmapp/contracts/alerts"
+import {can} from "@/lib/auth"
+import {telegramPending,subscribeTelegramPending,setTelegramPending} from "@/lib/alerts-telegram-checkpoint"
+import {ApiClientError} from "@/shared/api/http-client"
+import {testAlertsTelegram} from "@/shared/api/alerts"
+
+export function useAlertsTelegramPreview(base:string,live:boolean,available:boolean,onBegin:()=>boolean,onEnd:()=>void){
+ const source=JSON.stringify([live,base])
+ const unknown=useSyncExternalStore(subscribeTelegramPending,()=>telegramPending(source),()=>false)
+ const [busy,setBusy]=useState(false),[error,setError]=useState<string|null>(null),[outcome,setOutcome]=useState<string|null>(null)
+ const active=useRef(true),lock=useRef(false),controller=useRef<AbortController|null>(null)
+ useEffect(()=>{active.current=true;return()=>{active.current=false;controller.current?.abort()}},[source])
+ const enabled=live&&available&&can("mm:alerts:write")
+ async function test(payload:TestTelegramBody){
+  if(!enabled||lock.current||telegramPending(source)||!active.current||!can("mm:alerts:write"))return false
+  const parsed=testTelegramSchema.strict().safeParse(payload)
+  if(!parsed.success){setError("Проверьте параметры тестового сообщения");return false}
+  if(!onBegin())return false
+  lock.current=true;controller.current=new AbortController();setBusy(true);setError(null);setOutcome(null);setTelegramPending(source,true)
+  const current=()=>active.current&&can("mm:alerts:write")
+  try{
+   await testAlertsTelegram(base,parsed.data,{signal:controller.current.signal});if(!current())return false
+   setTelegramPending(source,false);setOutcome("Telegram API подтвердил приём тестового правила. Проверьте его в чате.");return true
+  }catch(e){
+   if(e instanceof ApiClientError&&[400,401,403,409,422].includes(e.status)&&current())setTelegramPending(source,false)
+   if(current())setError(e instanceof Error?e.message:"Результат отправки не получен");return false
+  }finally{lock.current=false;controller.current=null;if(active.current){setBusy(false);onEnd()}}
+ }
+ function review(){if(!enabled||busy)return;setTelegramPending(source,false)}
+ function clear(){setError(null);setOutcome(null)}
+ return {test,busy,error,outcome,unknown,enabled,review,clear}
+}