Unregister push token on signout (#8661)

* unregister push - WIP

* create agent and submit push token revokation

* mock unregisterpush

* fix import

* Add proxy headers

---------

Co-authored-by: Eric Bailey <git@esb.lol>

src/state/session/util.ts

@@ -1,8 +1,10 @@
+import AtpAgent from '@atproto/api'
 import {jwtDecode} from 'jwt-decode'
 
 import {isJwtExpired} from '#/lib/jwt'
 import {hasProp} from '#/lib/type-guards'
 import * as persisted from '#/state/persisted'
+import {sessionAccountToSession} from './agent'
 import {type SessionAccount} from './types'
 
 export function readLastActiveAccount() {
@@ -28,3 +30,32 @@ export function isSessionExpired(account: SessionAccount) {
     return true
   }
 }
+
+/**
+ * Creates and attempted to resumeSession for every stored session.
+ * Intended to be used to send push token revokations just before logout.
+ */
+export async function createTemporaryAgentsAndResume(
+  accounts: SessionAccount[],
+) {
+  const agents = await Promise.allSettled(
+    accounts.map(async account => {
+      const agent: AtpAgent = new AtpAgent({service: account.service})
+      if (account.pdsUrl) {
+        agent.sessionManager.pdsUrl = new URL(account.pdsUrl)
+      }
+
+      const session = sessionAccountToSession(account)
+      const res = await agent.resumeSession(session)
+      if (!res.success) throw new Error('Failed to resume session')
+
+      agent.assertAuthenticated() // confirm auth success
+
+      return agent
+    }),
+  )
+
+  return agents
+    .filter(x => x.status === 'fulfilled')
+    .map(promise => promise.value)
+}