--- /dev/null
+import { Response } from 'express'
+import { AccountModel } from '../../models/account/account'
+import * as Bluebird from 'bluebird'
+
+function doesAccountIdExist (id: number, res: Response, sendNotFound = true) {
+ const promise = AccountModel.load(id)
+
+ return doesAccountExist(promise, res, sendNotFound)
+}
+
+function doesLocalAccountNameExist (name: string, res: Response, sendNotFound = true) {
+ const promise = AccountModel.loadLocalByName(name)
+
+ return doesAccountExist(promise, res, sendNotFound)
+}
+
+function doesAccountNameWithHostExist (nameWithDomain: string, res: Response, sendNotFound = true) {
+ return doesAccountExist(AccountModel.loadByNameWithHost(nameWithDomain), res, sendNotFound)
+}
+
+async function doesAccountExist (p: Bluebird<AccountModel>, res: Response, sendNotFound: boolean) {
+ const account = await p
+
+ if (!account) {
+ if (sendNotFound === true) {
+ res.status(404)
+ .send({ error: 'Account not found' })
+ .end()
+ }
+
+ return false
+ }
+
+ res.locals.account = account
+
+ return true
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+ doesAccountIdExist,
+ doesLocalAccountNameExist,
+ doesAccountNameWithHostExist,
+ doesAccountExist
+}