<?php

namespace App\Livewire\System;

use App\Models\Setting;
use App\Services\DeploymentService;
use Livewire\Attributes\Layout;
use Livewire\Attributes\On;
use Livewire\Attributes\Title;
use Livewire\Component;

/**
 * System settings — dashboard-configurable Domain + TLS and the release channel.
 *
 * Domain & TLS: READ-ONLY status. The panel domain is an install-time decision
 * (APP_DOMAIN) so it stays consistent with URL/WebSocket/cookie security; Caddy then
 * issues, renews and HTTP→HTTPS-redirects fully automatically. Nothing to apply or
 * reload here — to change the domain, re-run install.sh.
 *
 * Release-Kanal: a stable|beta choice persisted as a Setting (default from
 * config('clusev.channel')), audited on change.
 */
#[Layout('layouts.app')]
#[Title('System — Clusev')]
class Index extends Component
{
    /** Valid user-facing release channels with their German descriptions. */
    public const CHANNELS = [
        'stable' => 'Nur getestete, vom Maintainer freigegebene Releases (getaggte Versionen). Empfohlen für den Produktivbetrieb.',
        'beta' => 'Vorabversionen kommender Releases zum Testen neuer Funktionen. Kann instabil sein. Entwicklungs-Builds werden Nutzern nie angeboten.',
    ];

    /** Install-time panel domain (read-only display). */
    public string $domain = '';

    public string $channel = 'stable';

    public function mount(DeploymentService $deployment): void
    {
        $this->domain = (string) ($deployment->domain() ?? '');
        $channel = Setting::get('release_channel', config('clusev.channel')) ?? 'stable';
        // Clamp to a valid user channel — a stale/legacy value (e.g. 'dev') falls back to stable.
        $this->channel = array_key_exists($channel, self::CHANNELS) ? $channel : 'stable';
    }

    /** Release channel changes are audited (confirmation via the shared modal). */
    public function confirmChannel(string $channel): void
    {
        if (! array_key_exists($channel, self::CHANNELS) || $channel === $this->channel) {
            return;
        }

        $this->dispatch('openModal',
            component: 'modals.confirm-action',
            arguments: [
                'heading' => 'Release-Kanal wechseln',
                'body' => 'Der Release-Kanal wird auf "'.$channel.'" gesetzt. Updates werden dann aus dieser Quelle bezogen.',
                'confirmLabel' => 'Wechseln',
                'danger' => false,
                'icon' => 'git-branch',
                'auditAction' => 'system.settings_updated',
                'auditTarget' => 'release_channel='.$channel,
                'event' => 'channelChanged',
                'params' => ['channel' => $channel],
                'notify' => 'Release-Kanal auf "'.$channel.'" gesetzt.',
            ],
        );
    }

    #[On('channelChanged')]
    public function applyChannel(string $channel): void
    {
        if (! array_key_exists($channel, self::CHANNELS)) {
            return;
        }

        Setting::put('release_channel', $channel);
        $this->channel = $channel;
    }

    public function render(DeploymentService $deployment)
    {
        return view('livewire.system.index', [
            'hasTls' => $this->domain !== '',
            'panelUrl' => $deployment->panelUrl(),
            'channels' => self::CHANNELS,
        ]);
    }
}