agent/agent: Add agent helper

Change-Id: I0c44b1a5fdd9727a8acf3d9deb88f9c2b5f71dd8

test/agent/agent.scm

+;; Copyright (C) 2021 Savoir-faire Linux Inc.
+
+;; Author: Olivier Dion <olivier.dion@savoirfairelinux.com>
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+
+(define-module (agent)
+  #:use-module (ice-9 threads)
+  #:use-module ((jami account) #:prefix account:)
+  #:use-module ((jami call)    #:prefix call:)
+  #:use-module ((jami signal)  #:prefix jami:))
+
+(define-public account-id "afafafafafafafaf")
+(define-public peer-id #f)
+
+(define (wait-for-announcement-of% accounts)
+  (let ((mtx (make-mutex))
+        (cnd (make-condition-variable)))
+    (map (lambda (this-account)
+           (jami:on-signal 'volatile-details-changed
+                           (lambda (accountID details)
+                             (cond
+                              ((not (string= accountID this-account)) #f)
+                              ((not (string= "true" (assoc-ref details "Account.deviceAnnounced"))) #f)
+                              (else
+                               (with-mutex mtx
+                                 (signal-condition-variable cnd))
+                               #t))))
+           (with-mutex mtx
+             (wait-condition-variable cnd mtx)))
+         accounts)))
+
+(define (wait-for-announcement-of accounts)
+  (if (string? accounts)
+      (wait-for-announcement-of% (list accounts))
+      (wait-for-announcement-of% accounts)))
+
+(define-public (ensure-account)
+
+  (when (null? (account:get-details account-id))
+    (account:add '(("Account.type"            . "RING")
+                   ("Account.displayName"     . "AGENT")
+                   ("Account.alias"           . "AGENT")
+                   ("Account.archivePassword" . "")
+                   ("Account.archivePIN"      . "")
+                   ("Account.archivePath"     . ""))
+                 account-id))
+
+  (let ((result (wait-for-announcement-of account-id)))
+    (display result)
+    (newline)
+    (unless (car result)
+      (format #t "Timeout while waiting for account announcement~%")))
+
+
+  (let ((details (account:get-details account-id)))
+    (set! peer-id (assoc-ref details "Account.username"))))