<?php

namespace App\Livewire\Ui\Security;

use Illuminate\Support\Str;
use Livewire\Attributes\Layout;
use Livewire\Attributes\Title;
use Livewire\Attributes\Url;
use Livewire\Component;

#[Layout('layouts.dvx')]
#[Title('Audit-Logs · Mailwolt')]
class AuditLogsTable extends Component
{
    #[Url(as: 'q', keep: true)]
    public string $search = '';

    #[Url(as: 'lvl', keep: true)]
    public string $level = '';

    public int $limit = 200;

    public function loadMore(): void
    {
        $this->limit += 200;
    }

    private function parseLogs(): array
    {
        $logFile = storage_path('logs/laravel.log');
        if (!is_readable($logFile)) return [];

        $fp = @fopen($logFile, 'r');
        if (!$fp) return [];
        $size = filesize($logFile);
        $chunk = 250_000;
        fseek($fp, max(0, $size - $chunk));
        $raw = fread($fp, $chunk);
        fclose($fp);
        if (!$raw) return [];

        $lines = explode("\n", $raw);

        $lines = array_slice($lines, -2000);

        $entries = [];
        $current = null;

        foreach ($lines as $line) {
            if (preg_match('/^\[(\d{4}-\d{2}-\d{2}[T ]\d{2}:\d{2}:\d{2})[^\]]*\] \w+\.(\w+): (.+)/', $line, $m)) {
                if ($current !== null) $entries[] = $current;
                $current = [
                    'time'    => str_replace('T', ' ', $m[1]),
                    'level'   => strtolower($m[2]),
                    'message' => trim($m[3]),
                ];
            } elseif ($current !== null) {
                $current['message'] .= "\n" . trim($line);
            }
        }
        if ($current !== null) $entries[] = $current;

        $entries = array_reverse($entries);

        $filtered = [];
        foreach ($entries as $e) {
            if ($this->level && $e['level'] !== $this->level) continue;
            if ($this->search !== '' && !str_contains(strtolower($e['message']), strtolower($this->search))) continue;
            $e['message'] = Str::limit(preg_replace('/\s+/', ' ', $e['message']), 300);
            $filtered[]   = $e;
            if (count($filtered) >= $this->limit) break;
        }

        return $filtered;
    }

    public function render()
    {
        $logs   = $this->parseLogs();
        $levels = ['', 'info', 'debug', 'warning', 'error', 'critical'];
        return view('livewire.ui.security.audit-logs-table', compact('logs', 'levels'));
    }
}