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

try {
    $data = readJsonBody();
    $userID = (int) ($data['UserID'] ?? 0);
    if ($userID === 0) apiAbort(['OK' => false, 'ERROR' => 'missing_UserID']);

    $qTab = queryOne("
        SELECT t.ID, t.UUID, t.BusinessID, t.OwnerUserID, t.ServicePointID,
               t.StatusID, t.AuthAmountCents, t.RunningTotalCents,
               t.OpenedOn, t.LastActivityOn, t.PaymentStatus, t.ApprovalMode,
               b.Name AS BusinessName, b.TabApprovalRequired,
               tm.RoleID,
               sp.Name AS ServicePointName,
               u.FirstName AS OwnerFirstName, u.LastName AS OwnerLastName
        FROM TabMembers tm
        JOIN Tabs t ON t.ID = tm.TabID
        JOIN Businesses b ON b.ID = t.BusinessID
        LEFT JOIN ServicePoints sp ON sp.ID = t.ServicePointID
        JOIN Users u ON u.ID = t.OwnerUserID
        WHERE tm.UserID = ? AND tm.StatusID = 1 AND t.StatusID = 1
        LIMIT 1
    ", [$userID]);

    if (!$qTab) jsonResponse(['OK' => true, 'HAS_TAB' => false]);

    $qMembers = queryOne("SELECT COUNT(*) AS MemberCount FROM TabMembers WHERE TabID = ? AND StatusID = 1", [$qTab['ID']]);

    $pendingCount = 0;
    if ((int) $qTab['RoleID'] === 1) {
        $qPending = queryOne("SELECT COUNT(*) AS PendingCount FROM TabOrders WHERE TabID = ? AND ApprovalStatus = 'pending'", [$qTab['ID']]);
        $pendingCount = (int) $qPending['PendingCount'];
    }

    $approvalMode = $qTab['ApprovalMode'] ?? '';
    $approvalRequired = (is_numeric($approvalMode) && $approvalMode !== '')
        ? (int) $approvalMode === 1
        : (int) ($qTab['TabApprovalRequired'] ?? 0) === 1;

    jsonResponse([
        'OK' => true,
        'HAS_TAB' => true,
        'TAB' => [
            'ID' => (int) $qTab['ID'],
            'UUID' => $qTab['UUID'],
            'BusinessID' => (int) $qTab['BusinessID'],
            'BusinessName' => $qTab['BusinessName'],
            'OwnerUserID' => (int) $qTab['OwnerUserID'],
            'OwnerName' => $qTab['OwnerFirstName'] . ' ' . $qTab['OwnerLastName'],
            'ServicePointID' => (int) ($qTab['ServicePointID'] ?? 0),
            'ServicePointName' => $qTab['ServicePointName'] ?? '',
            'StatusID' => (int) $qTab['StatusID'],
            'AuthAmountCents' => (int) $qTab['AuthAmountCents'],
            'RunningTotalCents' => (int) $qTab['RunningTotalCents'],
            'RemainingCents' => (int) $qTab['AuthAmountCents'] - (int) $qTab['RunningTotalCents'],
            'OpenedOn' => toISO8601($qTab['OpenedOn']),
            'MemberCount' => (int) $qMembers['MemberCount'],
            'PendingOrderCount' => $pendingCount,
            'IsOwner' => (int) $qTab['RoleID'] === 1,
            'ApprovalRequired' => $approvalRequired,
        ],
    ]);

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