changed how zabbix syncs

lib/Zabbix/Zabbix.php

@@ -32,13 +32,6 @@ class Zabbix {
         return json_decode($result, true);
     }
 
-    public function getAllCongestionInterfaces() {
-        $response = $this->zabbixRequest('item.get', array(
-            'search' => array('name' => array("Congestion")),
-        ));
-        return $response['result'];
-    }
-
     public function getHostById($hostId) {
         $response = $this->zabbixRequest('host.get', array(
             'hostids' => $hostId
@@ -57,11 +50,19 @@ class Zabbix {
         return $response['result'];
     }
 
-    public function getHosts($hostname) {
-        $response = $this->zabbixRequest('host.get', array(
-            'search' => array('name' => array($hostname))
-        ));
-        return $response['result'];
+    public function getHosts($hostname = null, $ip = null) {
+        if ($hostname) {
+            $response = $this->zabbixRequest('host.get', array(
+                'search' => array('name' => array($hostname))
+            ));
+            return $response['result'];
+        } elseif ($ip) {
+            $response = $this->zabbixRequest('host.get', array(
+                'search' => array('ip' => array($ip))
+            ));
+            return $response['result'];
+        }
+        return [];
     }
 
     public function getHostInterfaceItems($hostId) {