<?php
header('Content-Type: application/json');
require_once '../../../config.php';
$conn = getDB();

$result = $conn->query("SELECT * FROM rumah_ibadah");
$data = [];

while ($row = $result->fetch_assoc()) {
    $id       = $row['id'];
    $lat      = $row['lat'];
    $lng      = $row['lng'];
    $radius_m = $row['radius_m'];

    // Hitung jumlah rumah prasejahtera dalam radius
    // menggunakan formula Haversine langsung di SQL
    $stmt = $conn->prepare("
        SELECT COUNT(*) as total
        FROM rumah_prasejahtera
        WHERE (
            6371000 * acos(
                cos(radians(?)) * cos(radians(lat)) *
                cos(radians(lng) - radians(?)) +
                sin(radians(?)) * sin(radians(lat))
            )
        ) <= ?
    ");
    $stmt->bind_param("dddd", $lat, $lng, $lat, $radius_m);
    $stmt->execute();
    $hitungResult = $stmt->get_result()->fetch_assoc();
    $stmt->close();

    $row['jumlah_tercakup'] = (int) $hitungResult['total'];
    $data[] = $row;
}

echo json_encode($data);
$conn->close();
?>