<?php
// ============================================
// create_jalan.php — INSERT data Jalan (Garis)
// ============================================

header('Content-Type: application/json');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST');
header('Access-Control-Allow-Headers: Content-Type');

if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
    http_response_code(200);
    exit;
}

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405);
    echo json_encode(['success' => false, 'message' => 'Metode tidak diizinkan.']);
    exit;
}

require_once __DIR__ . '/koneksi.php';

$body = file_get_contents('php://input');
$data = json_decode($body, true);

if (!$data) {
    http_response_code(400);
    echo json_encode(['success' => false, 'message' => 'Body request tidak valid.']);
    exit;
}

$required = ['nama_jalan', 'status', 'panjang', 'geom'];
foreach ($required as $field) {
    if (!isset($data[$field])) {
        http_response_code(422);
        echo json_encode(['success' => false, 'message' => "Field '$field' wajib diisi."]);
        exit;
    }
    if (!is_array($data[$field]) && trim((string)$data[$field]) === '') {
        http_response_code(422);
        echo json_encode(['success' => false, 'message' => "Field '$field' tidak boleh kosong."]);
        exit;
    }
}

$nama_jalan = trim($data['nama_jalan']);
$status     = $data['status'];
$panjang    = (float) $data['panjang'];
$geom       = is_array($data['geom']) ? json_encode($data['geom']) : $data['geom'];

if (!in_array($status, ['Nasional', 'Provinsi', 'Kabupaten'], true)) {
    http_response_code(422);
    echo json_encode(['success' => false, 'message' => "Status jalan tidak valid."]);
    exit;
}

$conn = getConnection();
$sql  = "INSERT INTO jalan (nama_jalan, status, panjang, geom) VALUES (?, ?, ?, ?)";
$stmt = $conn->prepare($sql);

if (!$stmt) {
    http_response_code(500);
    echo json_encode(['success' => false, 'message' => 'Gagal menyiapkan query: ' . $conn->error]);
    $conn->close();
    exit;
}

$stmt->bind_param('ssds', $nama_jalan, $status, $panjang, $geom);

if ($stmt->execute()) {
    $newId = $stmt->insert_id;
    http_response_code(201);
    echo json_encode([
        'success' => true,
        'message' => 'Data Jalan berhasil disimpan.',
        'data'    => [
            'id'         => $newId,
            'nama_jalan' => $nama_jalan,
            'status'     => $status,
            'panjang'    => $panjang,
            'geom'       => json_decode($geom, true),
        ],
    ]);
} else {
    http_response_code(500);
    echo json_encode(['success' => false, 'message' => 'Gagal menyimpan data: ' . $stmt->error]);
}

$stmt->close();
$conn->close();