<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

class CheckUpdates extends Command
{
    protected $signature = 'mailwolt:check-updates';
    protected $description = 'Check for newer MailWolt releases via git tags';

    public function handle(): int
    {
        $currentNorm = $this->readInstalledVersionNorm();
        $currentRaw  = $this->readInstalledVersionRaw() ?? ($currentNorm ? 'v'.$currentNorm : null);

        $appPath = base_path();
        $cmd = <<<BASH
        set -e
        cd {$appPath}
        git fetch --tags --force --quiet origin +refs/tags/*:refs/tags/*
        (git tag -l 'v*' --sort=-v:refname | head -n1) || true
    BASH;

        $latestTagRaw = trim((string) shell_exec($cmd));
        if ($latestTagRaw === '') {
            $latestTagRaw = trim((string) shell_exec("cd {$appPath} && git tag -l --sort=-v:refname | head -n1"));
        }

        $latestNorm = $this->normalizeVersion($latestTagRaw);

        // Nichts gefunden -> alles leeren
        if (!$latestNorm) {
            cache()->forget('updates:latest');
            cache()->forget('updates:latest_raw');
            cache()->forget('mailwolt.update_available'); // legacy
            $this->warn('Keine Release-Tags gefunden.');
            return self::SUCCESS;
        }

        // Nur wenn wirklich neuer als installiert -> Keys setzen
        if ($currentNorm && version_compare($latestNorm, $currentNorm, '>')) {
            cache()->forever('updates:latest', $latestNorm);
            cache()->forever('updates:latest_raw', $latestTagRaw ?: ('v'.$latestNorm));
            cache()->forever('mailwolt.update_available', $latestNorm); // legacy-kompat
            $this->info("Update verfügbar: {$latestTagRaw} (installiert: ".($currentRaw ?? $currentNorm).")");
        } else {
            // Kein Update -> Keys löschen
            cache()->forget('updates:latest');
            cache()->forget('updates:latest_raw');
            cache()->forget('mailwolt.update_available'); // legacy
            $this->info("Aktuell (installiert: ".($currentRaw ?? $currentNorm ?? 'unbekannt').").");
        }

        cache()->put('updates:last_checked_at', now(), now()->addMinutes(10));
        return self::SUCCESS;
    }

    /* ===== Helpers ===== */

    private function readInstalledVersionNorm(): ?string
    {
        $paths = [
            '/var/lib/mailwolt/version',            // vom Wrapper (normiert)
            base_path('VERSION'),                   // App-Fallback
        ];
        foreach ($paths as $p) {
            $raw = @trim(@file_get_contents($p) ?: '');
            if ($raw !== '') return $this->normalizeVersion($raw);
        }
        // Noch ein Fallback aus RAW-Datei
        $raw = $this->readInstalledVersionRaw();
        return $raw ? $this->normalizeVersion($raw) : null;
    }

    private function readInstalledVersionRaw(): ?string
    {
        $p = '/var/lib/mailwolt/version_raw';      // vom Wrapper (z.B. "v1.0.25" oder "v1.0.25-3-gabcd")
        $raw = @trim(@file_get_contents($p) ?: '');
        return $raw !== '' ? $raw : null;
    }

    private function normalizeVersion(?string $v): ?string
    {
        if (!$v) return null;
        $v = trim($v);
        if ($v === '') return null;
        $v = ltrim($v, "vV \t\n\r\0\x0B");        // führendes v entfernen
        $v = preg_replace('/-.*$/', '', $v);      // Build-/dirty-Suffix abschneiden
        return $v !== '' ? $v : null;
    }
//    public function handle(): int
//    {
//        $appPath  = base_path();
//        $current  = trim(@file_get_contents(base_path('VERSION'))) ?: '0.0.0';
//        // newest tag from origin (sorted semver-friendly)
//        $latest = trim(shell_exec(
//            "cd {$appPath} && git fetch --tags --quiet origin && git tag --list | sort -V | tail -n1"
//        ) ?? '');
//
//        // Tags haben usually ein 'v' Prefix – entfernen
//        $latest = ltrim($latest, 'v');
//
//        if (!$latest) {
//            $this->warn('Keine Release-Tags gefunden.');
//            cache()->forget('mailwolt.update_available');
//            return 0;
//        }
//
//        if (version_compare($latest, $current, '>')) {
//            cache()->forever('mailwolt.update_available', $latest);
//            $this->info("Update verfügbar: {$latest} (installiert: {$current})");
//        } else {
//            cache()->forget('mailwolt.update_available');
//            $this->info("Aktuell (installiert: {$current}).");
//        }
//        return 0;
//    }
}