<?php
/**
 * simpan_pusat.php — Simpan / Update Rumah Ibadah
 *
 * POST params:
 *   id       - ID (jika update, opsional)
 *   name     - Nama rumah ibadah
 *   address  - Alamat
 *   kas      - Jumlah kas/dana (Rp)
 *   lat      - Latitude
 *   lng      - Longitude
 *   radius   - Radius dalam meter
 *   update   - "1" jika update existing record
 */

require_once 'koneksi.php';

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    echo json_encode(['success' => false, 'message' => 'Hanya menerima POST']);
    exit;
}

$id       = intval($_POST['id']      ?? 0);
$name     = $conn->real_escape_string(strip_tags($_POST['name']    ?? ''));
$address  = $conn->real_escape_string(strip_tags($_POST['address'] ?? ''));
$kas      = floatval($_POST['kas']   ?? 0);
$lat      = floatval($_POST['lat']   ?? 0);
$lng      = floatval($_POST['lng']   ?? 0);
$radius   = intval($_POST['radius']  ?? 300);
$isUpdate = isset($_POST['update']) && $_POST['update'] === '1';

if (empty($name)) {
    echo json_encode(['success' => false, 'message' => 'Nama wajib diisi']);
    exit;
}

if ($radius < 50) $radius = 50;

if ($id > 0 || $isUpdate) {
    $sql = "UPDATE religious_centers
            SET name='$name', address='$address', kas=$kas, latitude=$lat, longitude=$lng, radius=$radius, updated_at=NOW()
            WHERE id=$id";

    if ($conn->query($sql)) {
        echo json_encode(['success' => true, 'id' => $id, 'action' => 'updated']);
    } else {
        echo json_encode(['success' => false, 'message' => $conn->error]);
    }
} else {
    $sql = "INSERT INTO religious_centers (name, address, kas, latitude, longitude, radius)
            VALUES ('$name', '$address', $kas, $lat, $lng, $radius)";

    if ($conn->query($sql)) {
        $newId = $conn->insert_id;
        echo json_encode(['success' => true, 'id' => $newId, 'action' => 'inserted']);
    } else {
        echo json_encode(['success' => false, 'message' => $conn->error]);
    }
}

$conn->close();