<?php
// ===================================================
// jalan.php — CRUD Data Jalan (Polyline) + Upload Foto
// ===================================================

require_once 'config.php';

$method = $_SERVER['REQUEST_METHOD'];

// Folder upload
$uploadDir = __DIR__ . '/uploads/jalan/';
if (!is_dir($uploadDir)) mkdir($uploadDir, 0755, true);

// ---- Tangani DELETE via query string ----
if ($method === 'DELETE') {
    $id   = isset($_GET['id']) ? (int)$_GET['id'] : 0;
    if (!$id) {
        $raw = json_decode(file_get_contents('php://input'), true);
        $id  = (int)($raw['id'] ?? 0);
    }
    // Hapus foto lama jika ada
    $row = $conn->query("SELECT foto FROM tb_jalan WHERE id=$id")->fetch_assoc();
    if ($row && $row['foto'] && file_exists(__DIR__ . '/' . $row['foto'])) {
        unlink(__DIR__ . '/' . $row['foto']);
    }
    $stmt = $conn->prepare("DELETE FROM tb_jalan WHERE id = ?");
    $stmt->bind_param('i', $id);
    echo $stmt->execute()
        ? json_encode(['status'=>'ok','message'=>'Data jalan berhasil dihapus'])
        : json_encode(['status'=>'error','message'=>$conn->error]);
    $conn->close(); exit;
}

// ---- GET ----
if ($method === 'GET') {
    $search = isset($_GET['q']) ? '%' . $conn->real_escape_string($_GET['q']) . '%' : null;
    if (isset($_GET['id'])) {
        $id   = (int)$_GET['id'];
        $stmt = $conn->prepare("SELECT * FROM tb_jalan WHERE id = ?");
        $stmt->bind_param('i', $id);
        $stmt->execute();
        $data = $stmt->get_result()->fetch_assoc();
        echo json_encode(['status'=>'ok','data'=>$data]);
    } elseif ($search) {
        $stmt = $conn->prepare("SELECT * FROM tb_jalan WHERE nama_jalan LIKE ? OR status_jalan LIKE ? OR keterangan LIKE ? ORDER BY created_at DESC");
        $stmt->bind_param('sss', $search, $search, $search);
        $stmt->execute();
        $rows = $stmt->get_result()->fetch_all(MYSQLI_ASSOC);
        echo json_encode(['status'=>'ok','data'=>$rows]);
    } else {
        $result = $conn->query("SELECT * FROM tb_jalan ORDER BY created_at DESC");
        $rows   = $result->fetch_all(MYSQLI_ASSOC);
        echo json_encode(['status'=>'ok','data'=>$rows]);
    }
    $conn->close(); exit;
}

// ---- POST (multipart/form-data untuk support upload foto) ----
if ($method === 'POST') {
    $nama    = $conn->real_escape_string($_POST['nama_jalan'] ?? '');
    $status  = $conn->real_escape_string($_POST['status_jalan'] ?? 'Kabupaten');
    $panjang = (float)($_POST['panjang_meter'] ?? 0);
    $geojson = $conn->real_escape_string($_POST['geojson'] ?? '');
    $ket     = $conn->real_escape_string($_POST['keterangan'] ?? '');
    $foto    = '';

    // Upload foto
    if (!empty($_FILES['foto']['name'])) {
        $ext     = strtolower(pathinfo($_FILES['foto']['name'], PATHINFO_EXTENSION));
        $allowed = ['jpg','jpeg','png','webp'];
        if (in_array($ext, $allowed)) {
            $fname = 'jalan_' . time() . '_' . rand(1000,9999) . '.' . $ext;
            if (move_uploaded_file($_FILES['foto']['tmp_name'], $uploadDir . $fname)) {
                $foto = 'uploads/jalan/' . $fname;
            }
        }
    }

    $stmt = $conn->prepare("INSERT INTO tb_jalan (nama_jalan,status_jalan,panjang_meter,geojson,keterangan,foto) VALUES (?,?,?,?,?,?)");
    $stmt->bind_param('ssdsss', $nama, $status, $panjang, $geojson, $ket, $foto);
    echo $stmt->execute()
        ? json_encode(['status'=>'ok','id'=>$conn->insert_id,'message'=>'Data jalan berhasil disimpan'])
        : json_encode(['status'=>'error','message'=>$conn->error]);
    $conn->close(); exit;
}

// ---- PUT (multipart workaround via POST + _method) ----
if ($method === 'PUT' || ($method === 'POST' && ($_POST['_method'] ?? '') === 'PUT')) {
    parse_str(file_get_contents('php://input'), $put);
    $id      = (int)($_POST['id'] ?? $put['id'] ?? 0);
    $nama    = $conn->real_escape_string($_POST['nama_jalan'] ?? $put['nama_jalan'] ?? '');
    $status  = $conn->real_escape_string($_POST['status_jalan'] ?? $put['status_jalan'] ?? 'Kabupaten');
    $panjang = (float)($_POST['panjang_meter'] ?? $put['panjang_meter'] ?? 0);
    $geojson = $conn->real_escape_string($_POST['geojson'] ?? $put['geojson'] ?? '');
    $ket     = $conn->real_escape_string($_POST['keterangan'] ?? $put['keterangan'] ?? '');

    // Ambil foto lama
    $row  = $conn->query("SELECT foto FROM tb_jalan WHERE id=$id")->fetch_assoc();
    $foto = $row['foto'] ?? '';

    if (!empty($_FILES['foto']['name'])) {
        $ext     = strtolower(pathinfo($_FILES['foto']['name'], PATHINFO_EXTENSION));
        $allowed = ['jpg','jpeg','png','webp'];
        if (in_array($ext, $allowed)) {
            // Hapus foto lama
            if ($foto && file_exists(__DIR__ . '/' . $foto)) unlink(__DIR__ . '/' . $foto);
            $fname = 'jalan_' . time() . '_' . rand(1000,9999) . '.' . $ext;
            if (move_uploaded_file($_FILES['foto']['tmp_name'], $uploadDir . $fname)) {
                $foto = 'uploads/jalan/' . $fname;
            }
        }
    }

    $stmt = $conn->prepare("UPDATE tb_jalan SET nama_jalan=?,status_jalan=?,panjang_meter=?,geojson=?,keterangan=?,foto=? WHERE id=?");
    $stmt->bind_param('ssdsssi', $nama, $status, $panjang, $geojson, $ket, $foto, $id);
    echo $stmt->execute()
        ? json_encode(['status'=>'ok','message'=>'Data jalan berhasil diupdate'])
        : json_encode(['status'=>'error','message'=>$conn->error]);
    $conn->close(); exit;
}

echo json_encode(['status'=>'error','message'=>'Method not allowed']);
$conn->close();