<?php
// get_data.php  — letakkan di public_html Hostinger
header("Content-Type: application/json");
header("Access-Control-Allow-Origin: *");
$conn = new mysqli("localhost","your_user","your_pass","your_db");
$limit = isset($_GET['limit']) ? intval($_GET['limit']) : 1;
$range = isset($_GET['range']) ? $_GET['range'] : '';

if($range === '1h')  $where = "WHERE waktu >= NOW() - INTERVAL 1 HOUR";
elseif($range === '24h') $where = "WHERE waktu >= NOW() - INTERVAL 24 HOUR";
elseif($range === '7d')  $where = "WHERE waktu >= NOW() - INTERVAL 7 DAY";
elseif($range === '30d') $where = "WHERE waktu >= NOW() - INTERVAL 30 DAY";
else $where = "";

$sql = "SELECT * FROM data_sensor $where ORDER BY waktu DESC LIMIT $limit";
$res = $conn->query($sql);
$rows = [];
while($r = $res->fetch_assoc()) $rows[] = $r;

// Jika limit=1 kembalikan single object, selain itu array
if($limit === 1 && count($rows) === 1) echo json_encode($rows[0]);
else echo json_encode(["status"=>"ok","data"=>$rows]);
$conn->close();
?>