connect_error) {
    die(json_encode(['error' => "Ошибка подключения: " . $mysqli->connect_error]));
}

$mysqli->set_charset("utf8");

$output = [
    'houses' => ['hasOwner' => [], 'noOwner' => []],
    'businesses' => ['hasOwner' => [], 'noOwner' => []]
];

function parseCoords($coordString) {
    $coords = explode(',', $coordString);
    return [
        'x' => isset($coords[0]) ? (float)$coords[0] : 0,
        'y' => isset($coords[1]) ? (float)$coords[1] : 0
    ];
}

$houses = $mysqli->query("SELECT ID, Enter_X, Enter_Y, Name, Owner FROM houses");
if ($houses) {
    while ($house = $houses->fetch_assoc()) {
        $item = [
            'id' => (int)$house['ID'],
            'lx' => (float)$house['Enter_X'],
            'ly' => (float)$house['Enter_Y'],
            'name' => !empty($house['Name']) ? $house['Name'] : 'Дом №'.$house['ID'],
            'owner' => $house['Owner'],
            'hasAuction' => 0,
            'auMinBet' => 0,
            'auTimeEnd' => 0,
            'auStartPrice' => 0
        ];
      
        $category = ($house['Owner'] == "The State" || empty($house['Owner'])) ? 'noOwner' : 'hasOwner';
        $output['houses'][$category][] = $item;
    }
    $houses->close();
}

$businesses = $mysqli->query("SELECT ID, Enter, Exit, Name, Owner, Cost, State FROM businesses ORDER BY ID");
if ($businesses) {
    while ($biz = $businesses->fetch_assoc()) {
        $enter = parseCoords($biz['Enter'] ?? '0,0,0');
        $exit = parseCoords($biz['Exit'] ?? '0,0,0');
      
        $item = [
            'id' => (int)$biz['ID'],
            'lx' => $enter['x'],
            'ly' => $exit['y'],
            'name' => !empty($biz['Name']) ? $biz['Name'] : 'Бизнес №'.$biz['ID'],
            'owner' => $biz['Owner'],
            'cost' => (int)$biz['Cost'],
            'state' => (int)$biz['State'],
            'hasAuction' => 0,
            'auMinBet' => 0,
            'auTimeEnd' => 0,
            'auStartPrice' => 0
        ];
      
        $category = ($biz['Owner'] == "The State" || empty($biz['Owner'])) ? 'noOwner' : 'hasOwner';
        $output['businesses'][$category][] = $item;
    }
    $businesses->close();
}

$mysqli->close();

foreach ($output as &$type) {
    foreach ($type as &$category) {
        if (empty($category)) $category = [];
    }
}

echo json_encode($output, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
?>