presence: allow resubscription to presence

Change-Id: Ie0096fbead1c75e08eaa4a6e83d7741c839cb922
Reviewed-by: Sébastien Blin <sebastien.blin@savoirfairelinux.com>

src/accountmodel.cpp

@@ -48,6 +48,7 @@
 #include "dbus/configurationmanager.h"
 #include "dbus/callmanager.h"
 #include "dbus/instancemanager.h"
+#include "dbus/presencemanager.h"
 #include "codecmodel.h"
 #include "private/pendingcontactrequestmodel_p.h"
 #include "person.h"
@@ -836,6 +837,21 @@ AccountModel::EditState AccountModel::editState() const
    return s_CurrentState;
 }
 
+///Client can call this to force subscribe/resubscribe to all buddies
+void
+AccountModel::subscribeToBuddies(const QString &accountId)
+{
+    Account* account = getById(accountId.toLatin1());
+    if (account && account->protocol() == Account::Protocol::RING) {
+        const auto account_contacts = static_cast<QVector<QMap<QString, QString>>>(ConfigurationManager::instance().getContacts(accountId.toUtf8().constData()));
+        for (auto contact_info : account_contacts) {
+            PresenceManager::instance().subscribeBuddy(accountId,
+                                                       contact_info["id"],
+                                                       true);
+        }
+    }
+}
+
 ///Called when codec bitrate changes
 void AccountModelPrivate::slotMediaParametersChanged(const QString& accountId)
 {

src/accountmodel.h

@@ -79,6 +79,7 @@ public:
    bool                 isIP2IPSupported            (                                      ) const;
    bool                 isRingSupported             (                                      ) const;
    EditState            editState                   (                                      ) const;
+   void                 subscribeToBuddies          (const QString &accountID              )      ;
    Account*             selectedAccount             (                                      ) const;
    QList<Account*>      accountsToMigrate           (                                      ) const;
    QVector<QMap<QString, QString>> getContacts      (const Account* account                ) const;