diff --git a/app/class/ChartManager.php b/app/class/ChartManager.php
index f1d2c96..d26757c 100644
--- a/app/class/ChartManager.php
+++ b/app/class/ChartManager.php
@@ -6,8 +6,7 @@ class ChartScale{
 	const YEAR = 'error';
 }
 class ChartManager{
-	function generateChart($data, $min = 0, $max = 100)
-	{
+	function generateChart($data, $min = 0, $max = 100) {
 
 		echo '<br>Aktuální Hodnota: '.$data[0]['value'];
 		echo "<style>
@@ -88,5 +87,43 @@ class ChartManager{
 		}
 		</script>';
 	}
+
+	function generateChartData(int $subDeviceId, string $periode, string $groupBy) {
+		$chartData = [];
+
+		$subDevice = SubDeviceManager::getSubDevice($subDeviceId);
+		$records = RecordManager::getAllRecordForGraph($subDeviceId, $periode, $groupBy);
+
+		$array = array_column($records, 'value');
+		$arrayTime = array_column($records, 'time');
+		$output = [];
+
+		foreach ($array as $key => $value) {
+			$output[$key]['y'] = $value;
+			if ($subDevice['type'] == 'light'){
+				if ($value > 810){
+					$output[$key]['y'] = 1;
+				} else {
+					$output[$key]['y'] = 0;
+				}
+			}
+
+			$timeStamp = new DateTime($arrayTime[$key]);
+			$output[$key]['t'] = $timeStamp->format("Y-m-d") . 'T' . $timeStamp->format("H:i:s") . 'Z';
+		}
+
+		$data = json_encode($output);
+		$data = $output;
+		$arrayTimeStamps = array_column($records, 'time');
+		foreach ($arrayTimeStamps as $key => $value) {
+			$arrayTimeStamps[$key] = (new DateTime($value))->format(TIMEFORMAT);
+		}
+
+		$chartData['graphRange'] = RANGES[$subDevice['type']];
+		$chartData['graphType'] = RANGES[$subDevice['type']]['graph'];
+		$chartData['graphData'] = $data;
+
+		return $chartData;
+	}
 }
 ?>
diff --git a/app/templates/js/post.js b/app/templates/js/post.js
index 1e9c28c..abd29f9 100644
--- a/app/templates/js/post.js
+++ b/app/templates/js/post.js
@@ -51,7 +51,7 @@ function waitForExecution(params, elements, msg_state){
                 url: 'ajax',
                 type: 'POST',
                 data: { 
-                    lastRecord:'',
+                    action:'executed',
                     subDevice_id : params['subDevice_id']
                 },
                 success: function(msg){
diff --git a/app/templates/js/script.js b/app/templates/js/script.js
index 343607c..e932e45 100644
--- a/app/templates/js/script.js
+++ b/app/templates/js/script.js
@@ -29,6 +29,7 @@ if ('serviceWorker' in navigator) {
                     url: 'ajax',
                     type: 'POST',
                     data: {
+                        "notification" : '',
                         "token": token
                     },
                     success: function(data){
@@ -179,7 +180,7 @@ function ajaxChart(id, period = 'day', group = 'hour'){
         type: 'POST',
         dataType: 'json',
         data: {
-            "subDevice": id,
+            "subDevice_id": id,
             "action": 'chart',
             "period": period,
             "group": group