<?php

namespace Negundo\Client\Util;

use Negundo\Client\DataInterface;

class ExceptionHandler {

    public ? DataInterface $dataManipulator;

    public function __construct(DataInterface $dataManipulator = null)
    {
        $this->dataManipulator = $dataManipulator;
    }

    public function extractExceptionData(\Throwable $ex, array $serverData, array $postData, $dataManipulator = null) : array
    {
        $serverData = [
            'HTTPS' => $serverData['HTTPS'] ?? false,
            'HTTP_HOST' => $serverData['HTTP_HOST'] ?? "",
            'REQUEST_URI' => $serverData['REQUEST_URI'] ?? "",
            'HTTP_USER_AGENT' => $serverData['HTTP_USER_AGENT'] ?? null,
            'REMOTE_ADDR' => $serverData['REMOTE_ADDR'] ?? null,
        ];
        
        $post = [
            'code' => $ex->getCode(),
            'file' => $ex->getFile(),
            'line' => $ex->getLine(),
            'type' => $ex::class,
            'message' => $ex->getMessage(),
            'url' => ( ( 'on' === $serverData['HTTPS'] ) ? 'https' : 'http' ) . '://' . $serverData['HTTP_HOST'] . $serverData["REQUEST_URI"],
            'backtrace' => json_encode($ex->getTrace()),
            'backtrace_string' => $ex->getTraceAsString(),
            'source' => ( new SourceCodeFormatter() )->generateFromException($ex),
            'hits' => [
                'user_agent' => $serverData['HTTP_USER_AGENT'] ?? "???",
                'sent_at' => date('Y-m-d H:i:s'),
                'request_body_vars' => array_keys($postData),
                'remote_addr' => $serverData['REMOTE_ADDR'],
            ],
            'data' => [],
        ];

        if ( $dataManipulator ) {
            $post['data'] = $dataManipulator->getData();
            $post['hits'] = array_merge($post['hits'], $dataManipulator->getHits());

            $dataManipulator->run($post);
        } 

        $post['data'] = json_encode($post['data'] ?? null);
        $post['hits'] = json_encode($post['hits'] ?? null);

        return $post;
    }
    
    public function hash(\Throwable $ex) : string 
    {
        return md5(implode('-', [ $ex->getMessage(), $ex->getFile(), $ex->getLine(), $ex->getCode() ]));
    }
}