<?php
session_start();
require_once '../../../assets/utils/db_auth.php';
require_role($user_role, ['owner', 'admin', 'staff']);
require_once '../../../assets/utils/classes_ac/AccountFormulaManager.php';

try {
    $mgr = new AccountFormulaManager($pdo2, $company_id);
    $action = $data['action'] ?? ($_POST['action'] ?? 'read');

    if ($action === 'get_by_type') {
        $doc_type = trim((string)($data['document_type'] ?? ''));
        if (!$doc_type) throw new Exception('document_type is required.');
        $answer['output'] = $mgr->getByType($doc_type);
        $answer['success'] = 1;
        exit(json_encode($answer));
    }

    if ($action === 'retrieve') {
        $id = (int)($data['id'] ?? 0);
        $row = $mgr->getById($id);
        if (!$row) throw new Exception('Formula not found.');
        $answer['output'] = $row;
        $answer['success'] = 1;
        exit(json_encode($answer));
    }

    if ($action === 'save') {
        $new_id = null;
        dbTransaction($pdo2, function($pdo) use ($data, $company_id, &$new_id) {
            $mgr = new AccountFormulaManager($pdo, $company_id);
            $new_id = $mgr->save($data);
        });
        $answer['new_id'] = $new_id;
        $answer['success'] = 1;
        $answer['message'] = 'Formula saved.';
        exit(json_encode($answer));
    }

    if ($action === 'delete') {
        $id = (int)($data['id'] ?? 0);
        if ($id <= 0) throw new Exception('Missing formula id.');
        $mgr->delete($id);
        $answer['success'] = 1;
        $answer['message'] = 'Formula disabled.';
        exit(json_encode($answer));
    }

    $answer['output'] = $mgr->getAll();
    $answer['success'] = 1;

} catch (PDOException $e) {
    $answer['message'] = 'Database error, please try again.';
    http_response_code(500);
} catch (Exception $e) {
    $answer['message'] = $e->getMessage();
    http_response_code(400);
}

exit(json_encode($answer));
?>