<?php

namespace App\Lib;

use Throwable;

class Exceptions
{
    /**
     * Anonymize at least Sql queries
     *
     * @param string $message
     * @return string
     */
    public static function getAnonymizedMessage(string $message): string
    {
        $message = \preg_replace('/^(.*)( \(SQL:.*\))$/', '$1', $message) ?? $message;
        return $message;
    }

    /**
     * Anonymize stack trace
     *
     * @param \Exception $e
     * @return string
     */
    public static function getAnonymizedStackTrace(Throwable $e): string
    {
        $projectPath = \realpath(\sprintf('%s/../', \app_path()));
        $traceStack = $e->getTrace();
        $traceStr = '';
        $maxStackStage = 0;
        foreach ($traceStack as $stackStage => $stack) {
            $maxStackStage = $stackStage;
            $traceStr .= \sprintf(
                '#%s %s(%d): ',
                $stackStage,
                str_replace($projectPath, '', $stack['file'] ?? ''),
                $stack['line'] ?? ''
            );
            if (isset($stack['class'])) {
                $traceStr .= "{$stack['class']}->{$stack['function']}(";
                if (isset($stack['args'])) {
                    $traceStr .= self::handleArgs($stack);
                }
                $traceStr .= ")\n";
            } elseif (isset($stack['function'])) {
                $traceStr .= "{$stack['function']}(";
                if (isset($stack['args'])) {
                    $traceStr .= self::handleArgs($stack);
                }
                $traceStr .= ")\n";
            }
        }
        $maxStackStage++;
        $traceStr .= "#$maxStackStage {main}";
        return $traceStr;
    }

    /**
     * Handle Args
     *
     * @param array $stack
     * @return string
     */
    public static function handleArgs(array $stack): string
    {
        $traceArgs = '';
        $argsCount = count($stack['args']);
        for ($i = 0; $i < $argsCount; $i++) {
            $type = \gettype($stack['args'][$i]);
            switch ($type) {
                case 'object':
                    $traceArgs .= sprintf('Object(%s)', \get_class($stack['args'][$i]));
                    break;
                case 'array':
                    $traceArgs .= sprintf('Array(%d)', \count($stack['args'][$i]));
                    break;
                case 'string':
                    $traceArgs .= sprintf('String(%d)', \strlen($stack['args'][$i]));
                    break;
                default:
                    $traceArgs .= \gettype($stack['args'][$i]);
            }
            $traceArgs .= ($i !== ($argsCount - 1) ? ',' : '');
        }
        return $traceArgs;
    }
}