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

/**
 * List businesses where user is an active employee
 * POST: { UserID: int }
 */

$data = readJsonBody();
$userID = (int) ($data['UserID'] ?? 0);

if ($userID <= 0) {
    apiAbort(['OK' => false, 'ERROR' => 'missing_params', 'MESSAGE' => 'UserID is required.']);
}

try {
    $qBusinesses = queryTimed("
        SELECT
          MIN(e.ID) AS EmployeeID,
          e.BusinessID,
          MIN(e.StatusID) AS StatusID,
          MAX(e.IsActive) AS IsActive,
          MAX(COALESCE(e.RoleID, 1)) AS RoleID,
          b.Name AS Name,
          (SELECT COUNT(*) FROM Tasks t WHERE t.BusinessID = e.BusinessID AND t.ClaimedByUserID = 0 AND t.CompletedOn IS NULL) AS PendingTaskCount,
          (SELECT COUNT(*) FROM Tasks t WHERE t.BusinessID = e.BusinessID AND t.ClaimedByUserID = ? AND t.CompletedOn IS NULL) AS ActiveTaskCount
        FROM Employees e
        INNER JOIN Businesses b ON b.ID = e.BusinessID
        WHERE e.UserID = ? AND e.IsActive = 1
        GROUP BY e.BusinessID, b.Name
        ORDER BY b.Name ASC
    ", [$userID, $userID]);

    $businesses = [];
    foreach ($qBusinesses as $row) {
        $businesses[] = [
            'EmployeeID' => (int) $row['EmployeeID'],
            'BusinessID' => (int) $row['BusinessID'],
            'Name' => $row['Name'],
            'Address' => '',
            'City' => '',
            'StatusID' => (int) $row['StatusID'],
            'RoleID' => (int) $row['RoleID'],
            'PendingTaskCount' => (int) $row['PendingTaskCount'],
            'ActiveTaskCount' => (int) $row['ActiveTaskCount'],
        ];
    }

    jsonResponse([
        'OK' => true,
        'ERROR' => '',
        'BUSINESSES' => $businesses,
        'COUNT' => count($businesses),
    ]);

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