<?php
	// 設置資料類型 json，編碼格式 utf-8
	header('Content-Type: application/json; charset=UTF-8');
	
	// 判斷如果是 GET 請求，則進行搜尋；如果是 POST 請求，則進行新建
	// $_SERVER['REQUEST_METHOD'] 返回訪問頁面使用的請求方法
	if ($_SERVER['REQUEST_METHOD'] == "GET") {
		create();
	} else if ($_SERVER['REQUEST_METHOD'] == "POST") {
		create();
	}

	// 新建員工
	function create() {
		$pattern="/^(ws|wss):\/\/((([0-9]{1,3}\.){3}[0-9]{1,3})|(([a-zA-Z0-9]+(([\-]?[a-zA-Z0-9]+)*\.)+)*[a-zA-Z]{2,}))+/";
		if($_POST['OcppServerURL']!=""){
			if(!preg_match($pattern, $_POST['OcppServerURL'])){
				$jsone['result'] = "Fail";
				$jsone['message'] = "OcppServerURL format error, fill it with 'ws://' or 'wss://'";
				echo json_encode($jsone);
				return false;
			}
		}
		checkValue("OfflinePolicy");
		checkLength("ChargeBoxId",25);
		checkLength("chargePointVendor",20);
		if(isset($_POST['BackendConnTimeout'])){
			$json['BackendConnTimeout']			= (int)$_POST['BackendConnTimeout'];
		}
		if(isset($_POST['OfflinePolicy'])){
			$json['OfflinePolicy']				= (int)$_POST['OfflinePolicy'];
		}
		if(isset($_POST['OfflineMaxChargeEnergy'])){
			$json['OfflineMaxChargeEnergy']		= (int)$_POST['OfflineMaxChargeEnergy'];
		}
		if(isset($_POST['OfflineMaxChargeDuration'])){
			$json['OfflineMaxChargeDuration']	= (int)$_POST['OfflineMaxChargeDuration'];
		}
		if(isset($_POST['OcppServerURL'])){
			$json['OcppServerURL']				= $_POST['OcppServerURL'];
		}
		if(isset($_POST['ChargeBoxId'])){
			$json['ChargeBoxId']				= $_POST['ChargeBoxId'];
		}
		if(isset($_POST['chargePointVendor'])){
			$json['chargePointVendor']				= $_POST['chargePointVendor'];
		}
		if(isset($_POST['isEnableLocalPowerSharging'])){
			checkValue("isEnableLocalPowerSharging");
			$json['isEnableLocalPowerSharging']		= (int)$_POST['isEnableLocalPowerSharging'];
		}
//		ob_start();
		
		shell_exec('sync;sync;sync');
		chdir("/root");
		$str_json=json_encode($json);//var_dump($str_json);
		exec("'./WebService' '4' '".$str_json."'",$output,$return_var);
		 if(count($output)!=0){
			 $jsone['result'] = "Success";
			 $jsone['message'] = $json;
			 echo json_encode($jsone);
			 exit;
		 }
		 else{
			 $jsone['result'] = "Error";
			 $jsone['message'] = "Something went wrong on machine";
			 echo json_encode($jsone);
			 return false;
			 exit;
		 }
//		ob_end_clean();	
	}

	function checkValue($id){
		if($_POST[$id] != ""){
			if(strlen($_POST[$id])!=1){
					$jsone['result'] = "Fail";
					$jsone['message'] = "You have entered a wrong value on " . $id . ", it should be numeric";
					echo json_encode($jsone);
					exit;
			}
			if(!ereg("[0-9]",$_POST[$id])){
					$jsone['result'] = "Fail";
					$jsone['message'] = "You have entered a wrong value on " . $id . ", it should be numeric";
					echo json_encode($jsone);
					exit;
			}
		}
	}
	function checkLength($id,$value){
		if(strlen($_POST[$id])>$value){
				$jsone['result'] = "Fail";
				$jsone['message'] = "Length of " . $id . " should be less than ".$value;
				echo json_encode($jsone);
				exit;
		}
	}
?>