<?php

namespace App\Livewire\Admin;

use App\Models\Host;
use App\Provisioning\Jobs\RemoveWireguardPeer;
use Illuminate\Support\Facades\Cache;
use LivewireUI\Modal\ModalComponent;

/**
 * Confirmation for the destructive "remove host" action (R5). Deregisters the
 * CluPilot record only — it does not touch the physical server.
 */
class ConfirmRemoveHost extends ModalComponent
{
    public string $uuid;

    public string $name = '';

    public function mount(string $uuid): void
    {
        $this->uuid = $uuid;
        $this->name = Host::query()->where('uuid', $uuid)->value('name') ?? '';
    }

    public function remove()
    {
        $host = Host::query()->where('uuid', $this->uuid)->first();

        if ($host !== null) {
            // Delete each run under its runner lock so an in-flight worker can't
            // keep mutating the server or write an event against a deleted run.
            foreach ($host->runs()->get() as $run) {
                Cache::lock('run:'.$run->uuid, 30)->block(15, function () use ($run) {
                    $run->delete(); // cascades run_resources + step_events
                });
            }

            // Drop the hub peer on the privileged provisioning worker (which owns
            // wg0), so a freed wg_ip can't route to the removed server via a stale peer.
            if (filled($host->wg_pubkey)) {
                RemoveWireguardPeer::dispatch($host->wg_pubkey);
            }

            $host->delete();
        }

        return $this->redirectRoute('admin.hosts', navigate: true);
    }

    public function render()
    {
        return view('livewire.admin.confirm-remove-host');
    }
}