<?php

namespace App\Livewire\Ui\System;

use Carbon\Carbon;
use Livewire\Component;

class BackupStatusCard extends Component
{
    public string $lastAt = '–';
    public string $lastSize = '–';
    public string $lastDuration = '–';
    public string $statusText = 'unbekannt';
    public string $statusColor = 'text-white/60 border-white/20 bg-white/5';
    public string $progressText = '';
    public string $progressPercent = '0';
    public bool $running = false;
    protected string $statusFile = '/var/lib/mailwolt/backup.status';

    public function mount(): void
    {
        $this->load();
    }

    public function render()
    {
        return view('livewire.ui.system.backup-status-card');
    }

    public function refresh(): void
    {
        $this->load(true);
    }

    public function runNow(): void
    {
        @shell_exec('nohup sudo -n /usr/local/sbin/mailwolt-backup >/dev/null 2>&1 &');
        $this->running = true;
        $this->progressText = 'Starte Backup...';
        $this->progressPercent = '1';
    }

    protected function load(bool $force = false): void
    {
        if (!is_file($this->statusFile)) {
            $this->running = false;
            return;
        }

        $kv = [];
        foreach (@file($this->statusFile, FILE_IGNORE_NEW_LINES) ?: [] as $ln) {
            $p = strpos($ln, '=');
            if ($p !== false) {
                $kv[substr($ln, 0, $p)] = substr($ln, $p + 1);
            }
        }

        $state = $kv['state'] ?? null;
        $step = $kv['step'] ?? null;
        $percent = isset($kv['percent']) ? (int)$kv['percent'] : 0;
        $ok = isset($kv['ok']) ? ((int)$kv['ok'] === 1) : null;

        // Formatierung
        $tz = config('app.timezone', 'Europe/Berlin');
        $finished = $kv['finished_at'] ?? $kv['start_at'] ?? null;
        $this->lastAt = $finished
            ? Carbon::parse($finished)->setTimezone($tz)->format('d.m.Y H:i:s')
            : '–';

        $this->lastSize = isset($kv['size'])
            ? $this->formatBytes((int)$kv['size'])
            : '–';

        $this->lastDuration = isset($kv['duration'])
            ? $this->formatDuration((int)$kv['duration'])
            : '–';

        // Fortschritt
        $this->progressPercent = (string)$percent;
        $this->progressText = $this->mapStep($step);

        // Status
        $this->running = ($state === 'running');

        if ($ok === true) {
            $this->statusText = 'erfolgreich';
            $this->statusColor = 'text-emerald-300 border-emerald-400/30 bg-emerald-500/10';
        } elseif ($ok === false) {
            $this->statusText = 'fehlgeschlagen';
            $this->statusColor = 'text-rose-300 border-rose-400/30 bg-rose-500/10';
        } else {
            $this->statusText = 'unbekannt';
            $this->statusColor = 'text-white/60 border-white/20 bg-white/5';
        }
    }

    private function formatBytes(int $b): string
    {
        if ($b >= 1024 * 1024 * 1024) return number_format($b / (1024 * 1024 * 1024), 1) . ' GB';
        if ($b >= 1024 * 1024) return number_format($b / (1024 * 1024), 1) . ' MB';
        if ($b >= 1024) return number_format($b / 1024, 0) . ' KB';
        return $b . ' B';
    }

    private function formatDuration(int $s): string
    {
        if ($s < 60) return $s . 's';
        $m = intdiv($s, 60);
        $r = $s % 60;
        if ($m < 60) return sprintf('%dm %02ds', $m, $r);
        $h = intdiv($m, 60);
        $m = $m % 60;
        return sprintf('%dh %02dm %02ds', $h, $m, $r);
    }

    private function mapStep(?string $step): string
    {
        return match ($step) {
            'mysqldump' => 'Datenbank wird gesichert...',
            'maildir' => 'Mail-Verzeichnis wird archiviert...',
            'app' => 'Anwendungsdaten werden gesichert...',
            'configs' => 'Konfigurationen werden gesichert...',
            'compress' => 'Backup wird komprimiert...',
            'retention' => 'Alte Backups werden gelöscht...',
            'done' => 'Backup abgeschlossen.',
            default => 'Vorbereitung läuft...',
        };
    }
}

//
//
//namespace App\Livewire\Ui\System;
//
//use Carbon\CarbonImmutable;
//use Livewire\Component;
//
//class BackupStatusCard extends Component
//{
//    public ?string $lastAt = null;       // finale Zeit
//    public ?string $lastSize = null;     // menschenlesbar
//    public ?string $lastDuration = null; // menschenlesbar
//    public ?bool $ok = null;
//
//    // Live-Status
//    public bool $running = false;
//    public ?string $step = null;
//    public int $percent = 0;
//
//    public function mount(): void
//    {
//        $this->load();
//    }
//
//    public function render()
//    {
//        return view('livewire.ui.system.backup-status-card');
//    }
//
//    public function refresh(): void
//    {
//        $this->load(true);
//    }
//
//    public function runNow(): void
//    {
//        // Script asynchron starten (sudoers muss gesetzt sein)
//        @shell_exec('nohup sudo -n /usr/local/sbin/mailwolt-backup >/dev/null 2>&1 &');
//        // Sofort UI auf "läuft" stellen – Poll holt echten Status nach
//        $this->running = true;
//        $this->step = 'start';
//        $this->percent = 1;
//    }
//
//    protected function load(bool $force = false): void
//    {
//        $f = '/var/lib/mailwolt/backup.status';
//        if (!is_file($f)) {
//            return;
//        }
//
//        $data = [];
//        foreach (@file($f, FILE_IGNORE_NEW_LINES) ?: [] as $ln) {
//            if (strpos($ln, '=') !== false) {
//                [$k, $v] = explode('=', $ln, 2);
//                $data[$k] = $v;
//            }
//        }
//
//        $state = $data['state'] ?? null;
//        $this->running = ($state === 'running');
//
//        // Progress
//        $this->step = $data['step'] ?? null;
//        $this->percent = (int)($data['percent'] ?? 0);
//
//        // Finale Werte
//        if ($state === 'done' || $state === 'failed') {
//            $this->ok = ($data['ok'] ?? '') === '1';
//            $ts = $data['finished_at'] ?? $data['start_at'] ?? null;
//            $this->lastAt = $ts ? $this->fmtTs($ts) : null;
//
//            $bytes = (int)($data['size'] ?? 0);
//            $this->lastSize = $bytes ? $this->fmtBytes($bytes) : null;
//
//            $dur = (int)($data['duration'] ?? 0);
//            $this->lastDuration = $dur ? $this->fmtDuration($dur) : null;
//        }
//    }
//
//    protected function fmtTs(string $iso): string
//    {
//        return CarbonImmutable::parse($iso)->tz(config('app.timezone'))
//            ->format('d.m.Y H:i:s');
//    }
//
//    protected function fmtBytes(int $b): string
//    {
//        $u = ['B', 'KB', 'MB', 'GB', 'TB'];
//        $i = 0;
//        while ($b >= 1024 && $i < count($u) - 1) {
//            $b /= 1024;
//            $i++;
//        }
//        return sprintf('%.1f %s', $b, $u[$i]);
//    }
//
//    protected function fmtDuration(int $s): string
//    {
//        if ($s < 60) return $s . 's';
//        $m = intdiv($s, 60);
//        $r = $s % 60;
//        if ($m < 60) return sprintf('%dm %02ds', $m, $r);
//        $h = intdiv($m, 60);
//        $m %= 60;
//        return sprintf('%dh %02dm', $h, $m);
//    }
//}
//
////
////namespace App\Livewire\Ui\System;
////
////use Carbon\CarbonImmutable;
////use Illuminate\Support\Str;
////use Livewire\Component;
////
////class BackupStatusCard extends Component
////{
////    public ?string $lastAt = null;        // formatierte Zeit
////    public ?string $lastSize = null;      // human readable
////    public ?string $lastDuration = null;  // human readable
////    public ?bool $ok = null;
////
////    // Laufzeit/Progress
////    public string $state = 'idle';         // idle|running|done|error
////    public string $step = '';             // aktueller Schritt
////    public array $steps = [
////        'mysqldump' => 'Datenbank sichern',
////        'maildir' => 'Maildir kopieren',
////        'app' => 'App sichern',
////        'configs' => 'Configs sichern',
////        'archive' => 'Archiv erstellen',
////        'compress' => 'Komprimieren',
////        'retention' => 'Aufräumen',
////        'finish' => 'Abschluss',
////    ];
////
////    protected string $statusFile = '/var/lib/mailwolt/backup.status';
////
////    public function mount(): void
////    {
////        $this->load(true);
////    }
////
////    public function render()
////    {
////        return view('livewire.ui.system.backup-status-card');
////    }
////
////    public function refresh(): void
////    {
////        $this->load(true);
////    }
////
////    public function runNow(): void
////    {
////        @shell_exec('nohup sudo -n /usr/local/sbin/mailwolt-backup >/dev/null 2>&1 &');
////        // Sofort in "running" gehen – Poll übernimmt dann
////        $this->state = 'running';
////        $this->step = 'mysqldump';
////    }
////
////    public function load(bool $force = false): void
////    {
////        $raw = $this->readStatus();
////        $this->state = $raw['state'] ?? 'idle';
////        $this->step = $raw['step'] ?? '';
////
////        // Datum/Zeit hübsch
////        if (!empty($raw['time'])) {
////            $this->lastAt = $this->fmtTime($raw['time']);
////        } else {
////            $this->lastAt = null;
////        }
////
////        // Größe/Dauer hübsch
////        $bytes = isset($raw['size_bytes']) ? (int)$raw['size_bytes'] : null;
////        $secs = isset($raw['dur_seconds']) ? (int)$raw['dur_seconds'] : null;
////
////        $this->lastSize = $bytes !== null ? $this->humanBytes($bytes) : null;
////        $this->lastDuration = $secs !== null ? $this->humanDuration($secs) : null;
////        $this->ok = isset($raw['ok']) ? ((string)$raw['ok'] === '1') : null;
////    }
////
////    protected function readStatus(): array
////    {
////        if (!is_file($this->statusFile)) return [];
////        $out = [];
////        foreach (@file($this->statusFile, FILE_IGNORE_NEW_LINES) ?: [] as $ln) {
////            if (!str_contains($ln, '=')) continue;
////            [$k, $v] = array_map('trim', explode('=', $ln, 2));
////            $out[$k] = $v;
////        }
////
////        // Backward compatibility (alte Keys)
////        if (isset($out['size']) && !isset($out['size_bytes'])) {
////            $out['size_bytes'] = (int)$out['size'];
////        }
////        if (isset($out['dur']) && !isset($out['dur_seconds'])) {
////            $out['dur_seconds'] = (int)$out['dur'];
////        }
////
////        return $out;
////    }
////
////    protected function fmtTime(string $iso): string
////    {
////        try {
////            $tz = config('app.timezone', 'UTC');
////            // ISO aus Script ist idealerweise UTC (Z)
////            $dt = CarbonImmutable::parse($iso)->timezone($tz);
////            // z.B. 27.10.2025, 16:48:02 (CET)
////            return $dt->isoFormat('L, LTS') . ' ' . $dt->format('T');
////        } catch (\Throwable) {
////            return $iso;
////        }
////    }
////
////    protected function humanBytes(int $bytes): string
////    {
////        $units = ['B', 'KB', 'MB', 'GB', 'TB'];
////        $i = 0;
////        while ($bytes >= 1024 && $i < count($units) - 1) {
////            $bytes /= 1024;
////            $i++;
////        }
////        return number_format($bytes, $i === 0 ? 0 : 1, ',', '.') . ' ' . $units[$i];
////    }
////
////    protected function humanDuration(int $secs): string
////    {
////        if ($secs < 60) return $secs . ' s';
////        $m = intdiv($secs, 60);
////        $s = $secs % 60;
////        if ($m < 60) return sprintf('%d min %02d s', $m, $s);
////        $h = intdiv($m, 60);
////        $m = $m % 60;
////        return sprintf('%d h %02d min', $h, $m);
////    }
////}
////
//////
//////namespace App\Livewire\Ui\System;
//////
//////use Livewire\Component;
//////
//////class BackupStatusCard extends Component
//////{
//////    public ?string $lastAt = null;
//////    public ?string $lastSize = null;
//////    public ?string $lastDuration = null;
//////    public ?bool $ok = null;
//////
//////    public function mount(): void { $this->load(); }
//////    public function render() { return view('livewire.ui.system.backup-status-card'); }
//////    public function refresh(): void { $this->load(true); }
//////
//////    public function runNow(): void
//////    {
//////        @shell_exec('nohup sudo -n /usr/local/sbin/mailwolt-backup >/dev/null 2>&1 &');
////////        $this->dispatch('toast', type:'info', title:'Backup gestartet');
//////    }
//////
//////    protected function load(bool $force=false): void
//////    {
//////        // Example: parse a tiny status file your backup script writes.
//////        $f = '/var/lib/mailwolt/backup.status';
//////        if (is_file($f)) {
//////            $lines = @file($f, FILE_IGNORE_NEW_LINES) ?: [];
//////            foreach ($lines as $ln) {
//////                if (str_starts_with($ln,'time=')) $this->lastAt = substr($ln,5);
//////                if (str_starts_with($ln,'size=')) $this->lastSize = substr($ln,5);
//////                if (str_starts_with($ln,'dur='))  $this->lastDuration = substr($ln,4);
//////                if (str_starts_with($ln,'ok='))   $this->ok = (substr($ln,3) === '1');
//////            }
//////        }
//////    }
//////}