<?php
	header('Content-Type: application/json; charset=UTF-8');
	class CursConverter 
	{ 
		private $local; 
		private $foreign; 
		private $signforeign; 
		private $signlocal; 
		private $baseUrl="https://exchangerate.guru/"; 
		function __construct($signlocal="IDR",$signforeign="USD",$amount=1) 
		{ 
			$this->signlocal=$signlocal; 
			$this->signforeign=$signforeign; 
			$this->local=$amount; 
		} 
		function convert(){ 
			$url=$this->baseUrl.strtolower($this->signlocal)."/".strtolower($this->signforeign)."/".$this->local; 
			$foreign=$this->parser($url); 
			if(!empty($foreign)){ 
				return array($this->signlocal=>$foreign[0],$this->signforeign=>$foreign[1]); 
			} 
			return array(); 
		} 
		function nativecurl($url){ 
			  $curl = curl_init($url); 
			curl_setopt($curl, CURLOPT_FAILONERROR, true); 
			curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); 
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); 
			curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); 
			curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); 
			$result = curl_exec($curl); 

			return $result; 
		} 
		function parser ($url){ 
			$html = $this->nativecurl($url); 
			$dom = new DOMDocument(); 
			$internalErrors = libxml_use_internal_errors(true); 
			$dom->loadHTML($html); 
			$val=array(); 
			$input = $dom->getElementsByTagName('input'); 
			 foreach ($input as $tag) { 
				$val[] = $tag->getAttribute('value'); 
			} 
			libxml_use_internal_errors($internalErrors); 
			return $val; 
		} 
	}	
	if(isset($_POST['val']) && $_POST['val'] != ""){
		
		$val = explode('|', $_POST['val']);
		
		$fromCurr	= $val[0];
		$toCurr	= $val[1];
		$finpt		= $val[2];
		
		if($fromCurr!="" && $toCurr!="" && $finpt!=""){
			$curs= new CursConverter($fromCurr,$toCurr,$finpt);		
			$data = $curs->convert();		
			$result = array(
				'success'	=> true,
				'message'	=> 'Success',
				'data'		=> $data[$toCurr]
			);
		}else{
			$result = array(
				'success' => false,
				'message' => 'Bad request!'
			);
		}
	}else{
		$result = array(
			'success' => false,
			'message' => 'Bad request!'
		);
	}
	echo json_encode($result);
?>