<?php
require_once __DIR__ . '/../helpers.php';
runAuth();

try {
    $data = readJsonBody();

    if (!isset($data['Beacons']) || !is_array($data['Beacons']) || count($data['Beacons']) === 0) {
        jsonResponse(['OK' => true, 'ERROR' => '', 'BEACONS' => []]);
    }

    $beacons = [];

    foreach ($data['Beacons'] as $beaconData) {
        $uuid = '';
        $major = 0;
        $minor = -1;

        if (!empty($beaconData['UUID'])) {
            $rawUuid = strtoupper(str_replace('-', '', $beaconData['UUID']));
            if (strlen($rawUuid) === 32) {
                $uuid = strtolower(
                    substr($rawUuid, 0, 8) . '-' . substr($rawUuid, 8, 4) . '-' .
                    substr($rawUuid, 12, 4) . '-' . substr($rawUuid, 16, 4) . '-' .
                    substr($rawUuid, 20, 12)
                );
            }
        }

        if (isset($beaconData['Major']) && is_numeric($beaconData['Major'])) {
            $major = (int) $beaconData['Major'];
        }
        if (isset($beaconData['Minor']) && is_numeric($beaconData['Minor'])) {
            $minor = (int) $beaconData['Minor'];
        }

        if ($uuid === '' || $major < 0 || $minor < 0) continue;

        $qShard = queryOne("
            SELECT
                biz.ID AS BusinessID, biz.Name AS BusinessName,
                biz.ParentBusinessID,
                COALESCE(parent.Name, '') AS ParentBusinessName,
                sp.ID AS ServicePointID, sp.Name AS ServicePointName,
                (SELECT COUNT(*) FROM Businesses WHERE ParentBusinessID = biz.ID) AS ChildCount
            FROM BeaconShards bs
            JOIN Businesses biz ON biz.BeaconShardID = bs.ID AND biz.BeaconMajor = ?
            LEFT JOIN ServicePoints sp ON sp.BusinessID = biz.ID AND sp.BeaconMinor = ? AND sp.IsActive = 1
            LEFT JOIN Businesses parent ON biz.ParentBusinessID = parent.ID
            WHERE bs.UUID = ? AND bs.IsActive = 1
              AND biz.IsDemo = 0 AND biz.IsPrivate = 0
            LIMIT 1
        ", [$major, $minor, $uuid]);

        if ($qShard) {
            $beacons[] = [
                'UUID' => strtoupper(str_replace('-', '', $uuid)),
                'Major' => $major,
                'Minor' => $minor,
                'BusinessID' => (int) $qShard['BusinessID'],
                'BusinessName' => $qShard['BusinessName'],
                'ServicePointID' => (int) ($qShard['ServicePointID'] ?? 0),
                'ServicePointName' => $qShard['ServicePointName'] ?? '',
                'ParentBusinessID' => (int) ($qShard['ParentBusinessID'] ?? 0),
                'ParentBusinessName' => $qShard['ParentBusinessName'],
                'HasChildren' => (int) $qShard['ChildCount'] > 0,
            ];
        }
    }

    jsonResponse(['OK' => true, 'ERROR' => '', 'BEACONS' => $beacons]);

} catch (Exception $e) {
    jsonResponse(['OK' => false, 'ERROR' => $e->getMessage()]);
}