Move canUser to the appropriate location

app/services/rfd.server.ts

@@ -15,7 +15,7 @@ import { Octokit } from 'octokit'
 import { generateAuthors, type Author } from '~/components/rfd/RfdPreview'
 import { isTruthy } from '~/utils/isTruthy'
 import { parseRfdNum } from '~/utils/parseRfdNum'
-import { canUser } from '~/utils/permission'
+import { can, Permission } from '~/utils/permission'
 import type { GroupResponse, RfdListResponseItem, RfdResponse } from '~/utils/rfdApi'
 
 import type { Group, User } from './authn.server'
@@ -55,6 +55,16 @@ export type RfdListItem = {
 const localRepo = process.env.LOCAL_RFD_REPO
 export const isLocalMode = process.env.NODE_ENV === 'development' && localRepo
 
+async function canUser(user: User, permission: Permission): Promise<boolean> {
+  const groups = (await fetchGroups(user)).filter((group) =>
+    user.groups.includes(group.name),
+  )
+  const allPermissions = user.permissions.concat(
+    groups.flatMap((group) => group.permissions),
+  )
+  return can(allPermissions, permission)
+}
+
 function findLineStartingWith(content: string, prefixRegex: string): string | undefined {
   // (^|\n) is required to match either the first line (beginning of file) or
   // subsequent lines

app/utils/permission.ts

@@ -6,23 +6,10 @@
  * Copyright Oxide Computer Company
  */
 
-import type { User } from '~/services/authn.server'
-import { fetchGroups } from '~/services/rfd.server'
-
 import type { RfdApiPermission } from './rfdApi'
 
 export type Permission = { k: 'ReadDiscussions' } | { k: 'ReadRfd'; v: number }
 
-export async function canUser(user: User, permission: Permission): Promise<boolean> {
-  const groups = (await fetchGroups(user)).filter((group) =>
-    user.groups.includes(group.name),
-  )
-  const allPermissions = user.permissions.concat(
-    groups.flatMap((group) => group.permissions),
-  )
-  return can(allPermissions, permission)
-}
-
 export function can(allPermissions: RfdApiPermission[], permission: Permission): boolean {
   const checks = createChecks(permission)
   const allowed = checks.some((check) => performCheck(allPermissions, check))