Fech data from mam when all history gets displayed

Fetch from mam without displaying when all mam messages get received
display new messages from db.
Unstable, initial mam doesn't get displayed unless we start scrolling.

src/xmpp/iq.c

@@ -2575,6 +2575,49 @@ _iq_free_affiliation_list(ProfAffiliationList* affiliation_list)
     }
 }
 
+static int
+_mam_buffer_commit_handler(xmpp_stanza_t* const stanza, void* const userdata)
+{
+    ProfChatWin* chatwin = (ProfChatWin*)userdata;
+    cons_show("Comitted history");
+    chatwin_old_history(chatwin);
+    return 0;
+}
+
+void
+iq_mam_request_older(ProfChatWin* win)
+{
+    if (connection_supports(XMPP_FEATURE_MAM2) == FALSE) {
+        log_warning("Server doesn't advertise %s feature.", XMPP_FEATURE_MAM2);
+        cons_show_error("Server doesn't support MAM (%s).", XMPP_FEATURE_MAM2);
+        return;
+    }
+
+    ProfMessage* first_msg = log_database_get_limits_info(win->barejid, FALSE);
+    char* firstid = NULL;
+    char* enddate = NULL;
+
+    // If first message found
+    if (first_msg->timestamp) {
+        firstid = first_msg->stanzaid;
+        enddate = g_date_time_format(first_msg->timestamp, "%FT%T.%f%:z");
+    } else {
+        return;
+    }
+
+    xmpp_ctx_t* const ctx = connection_get_ctx();
+    xmpp_stanza_t* iq = stanza_create_mam_iq(ctx, win->barejid, NULL, enddate, firstid, NULL);
+    iq_id_handler_add(xmpp_stanza_get_id(iq), _mam_buffer_commit_handler, NULL, win);
+
+    g_free(enddate);
+    message_free(first_msg);
+
+    iq_send_stanza(iq);
+    xmpp_stanza_release(iq);
+
+    return;
+}
+
 void
 iq_mam_request(ProfChatWin* win)
 {