<?php

namespace App\Services;

use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\DB;

class LauncherRealmService
{
    public function __construct(
        private readonly RealmStatusProbe $statusProbe,
    ) {
    }

    /**
     * @return Collection<int, array<string, bool|float|int|string>>
     */
    public function realms(): Collection
    {
        $cacheSeconds = max(0, (int) config('moonwell.launcher.realm_status_cache', 15));

        if ($cacheSeconds === 0) {
            return $this->loadRealms();
        }

        return Cache::remember(
            'launcher.realm-status',
            now()->addSeconds($cacheSeconds),
            fn (): Collection => $this->loadRealms(),
        );
    }

    /**
     * @return Collection<int, array<string, bool|float|int|string>>
     */
    private function loadRealms(): Collection
    {
        return DB::connection(config('moonwell.auth_connection'))
            ->table('realmlist')
            ->orderBy('id')
            ->get([
                'id',
                'name',
                'address',
                'port',
                'icon',
                'flag',
                'timezone',
                'population',
            ])
            ->map(function (object $realm): array {
                $probeAddress = trim((string) config('moonwell.launcher.realm_status_host'));
                $online = $this->statusProbe->isOnline(
                    $probeAddress !== '' ? $probeAddress : (string) $realm->address,
                    (int) $realm->port,
                );

                return [
                    'id' => (int) $realm->id,
                    'name' => (string) $realm->name,
                    'address' => (string) $realm->address,
                    'port' => (int) $realm->port,
                    'icon' => (int) $realm->icon,
                    'flag' => (int) $realm->flag,
                    'timezone' => (int) $realm->timezone,
                    'population' => (float) $realm->population,
                    'online' => $online,
                    'status' => $online ? 'online' : 'offline',
                ];
            })
            ->values();
    }
}