78 lines
2.6 KiB
PHP
78 lines
2.6 KiB
PHP
<?php
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header('Content-Type: application/json');
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include __DIR__ . '/../../db_config.php';
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function distanceMeters($lat1, $lng1, $lat2, $lng2) {
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$earthRadius = 6371000;
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$toRadians = function ($value) {
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return $value * M_PI / 180;
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};
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$deltaLat = $toRadians($lat2 - $lat1);
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$deltaLng = $toRadians($lng2 - $lng1);
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$a = sin($deltaLat / 2) * sin($deltaLat / 2) + cos($toRadians($lat1)) * cos($toRadians($lat2)) * sin($deltaLng / 2) * sin($deltaLng / 2);
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return 2 * $earthRadius * atan2(sqrt($a), sqrt(1 - $a));
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}
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function findNearestRumahIbadah($conn, $lat, $lng) {
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$result = $conn->query("SELECT id, nama, latitude, longitude FROM rumah_ibadah ORDER BY created_at DESC");
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if (!$result || $result->num_rows === 0) {
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return null;
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}
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$nearest = null;
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while ($row = $result->fetch_assoc()) {
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$distance = distanceMeters($lat, $lng, (float)$row['latitude'], (float)$row['longitude']);
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if ($nearest === null || $distance < $nearest['distance']) {
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$nearest = [
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'id' => (int)$row['id'],
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'nama' => $row['nama'],
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'distance' => $distance
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];
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}
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}
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return $nearest;
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}
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if ($_SERVER['REQUEST_METHOD'] === 'POST') {
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$namaKetuaKk = trim($_POST['nama_ketua_kk'] ?? '');
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$jumlahAnggota = (int)($_POST['jumlah_anggota'] ?? 0);
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$lat = $_POST['latitude'] ?? null;
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$lng = $_POST['longitude'] ?? null;
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if ($namaKetuaKk === '' || $jumlahAnggota <= 0 || $lat === null || $lng === null) {
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echo json_encode(['status' => 'error', 'message' => 'Data penduduk miskin tidak lengkap']);
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$conn->close();
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exit;
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}
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$lat = (float)$lat;
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$lng = (float)$lng;
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$nearest = findNearestRumahIbadah($conn, $lat, $lng);
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if (!$nearest) {
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echo json_encode(['status' => 'error', 'message' => 'Tambahkan rumah ibadah terlebih dahulu']);
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$conn->close();
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exit;
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}
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$jarak = $nearest['distance'];
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$rumahIbadahId = $nearest['id'];
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$rumahIbadahNama = $nearest['nama'];
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$stmt = $conn->prepare("INSERT INTO penduduk_miskin (nama_ketua_kk, jumlah_anggota, latitude, longitude, rumah_ibadah_id, rumah_ibadah_nama, jarak_ke_rumah_ibadah_m) VALUES (?, ?, ?, ?, ?, ?, ?)");
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$stmt->bind_param("siddisd", $namaKetuaKk, $jumlahAnggota, $lat, $lng, $rumahIbadahId, $rumahIbadahNama, $jarak);
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if ($stmt->execute()) {
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echo json_encode(['status' => 'success', 'message' => 'Penduduk miskin berhasil disimpan']);
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} else {
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echo json_encode(['status' => 'error', 'message' => $stmt->error]);
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}
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$stmt->close();
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}
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$conn->close();
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?>
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