<?php

namespace App\Scene;

use JumPHP\Kernel\Platform;

/** Settings (saved by the engine's Options): sound, music, language, full screen, install. */
final class OptionsScene extends MenuBase
{
    protected string $title = 'OPTIONS';

    public function isOverlay(): bool
    {
        return true;
    }

    protected function renderBackground(\JumPHP\Renderer\Renderer $r): void
    {
        $r->fillRect(0, 0, 480, 270, [8, 4, 20, 235]);
    }

    protected function items(): array
    {
        $options = $this->engine->options;
        $sound = $this->sound();
        $items = [
            ['SOUND', fn () => round($sound->getSfxVolume() * 100) . '%', null, function (int $dir) use ($sound, $options): void {
                $sound->setSfxVolume(max(0, min(1, round($sound->getSfxVolume() * 10 + $dir) / 10)));
                $options->set('sfx_volume', $sound->getSfxVolume());
            }],
            ['MUSIC', fn () => round($sound->getMusicVolume() * 100) . '%', null, function (int $dir) use ($sound, $options): void {
                $sound->setMusicVolume(max(0, min(1, round($sound->getMusicVolume() * 10 + $dir) / 10)));
                $options->set('music_volume', $sound->getMusicVolume());
            }],
            ['LANGUAGE', fn () => 'LANGNAME', null, function (int $dir) use ($options): void {
                $langs = $this->engine->lang->available();
                $i = array_search($this->engine->lang->getLang(), $langs, true);
                $lang = $langs[((int)$i + $dir + count($langs)) % count($langs)];
                $this->engine->lang->setLang($lang);
                $options->set('lang', $lang);
            }],
        ];
        $items[] = ['GRAPHICS', fn () => $this->art->hdOn($this->engine) ? 'HD' : 'RETRO', null, function (int $dir): void {
            $this->art->toggleHd($this->engine);
            $this->scenes()->switchTo(TitleScene::class, [], false);   // every scene draws its pictures again
        }];
        if ($this->art->effects->available($this->engine)) {
            $items[] = ['EFFECTS', fn () => $this->art->effects->isOn($this->engine) ? 'ON' : 'OFF', null, fn (int $dir) => $this->art->effects->toggle($this->engine)];
        }
        if (Platform::isDesktop()) {
            $items[] = ['FULLSCREEN', fn () => $options->get('fullscreen') ? 'ON' : 'OFF', null, fn (int $dir) => $this->engine->toggleFullscreen()];
        }
        $pwa = $this->engine->pwa();
        if ($pwa->canInstall()) {
            $items[] = ['INSTALL', null, fn () => $pwa->install()->then(fn () => null)];
        } elseif ($pwa->hasPortal()) {
            $items[] = ['INSTALL', null, fn () => $pwa->showInstallMenu()];
        }
        $items[] = ['BACK', null, fn () => $this->back()];
        return $items;
    }

    protected function back(): void
    {
        $this->scenes()->pop();
    }
}