<?php

declare(strict_types=1);

namespace App\Services;

use App\Models\Miscellaneous\WebsiteLanguage;
use App\Models\Miscellaneous\WebsiteSetting;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Schema;
use Throwable;

class SettingsService
{
    private const string CACHE_KEY = 'website_settings';

    private const string LANGUAGES_CACHE_KEY = 'website_languages';

    private ?Collection $cachedSettings = null;

    public function __construct(
        private readonly InstallationService $installationService,
    ) {}

    public function getOrDefault(string $key, mixed $default = null): mixed
    {
        $settings = $this->settings();

        return $settings->get($key, $default);
    }

    public function getLanguages(): Collection
    {
        return Cache::rememberForever(self::LANGUAGES_CACHE_KEY, function (): Collection {
            try {
                if (! Schema::hasTable('website_languages')) {
                    return collect();
                }

                return WebsiteLanguage::all();
            } catch (Throwable) {
                return collect();
            }
        });
    }

    public static function clearCache(): void
    {
        Cache::forget(self::CACHE_KEY);
        Cache::forget(self::LANGUAGES_CACHE_KEY);
    }

    public function clearInstanceCache(): void
    {
        $this->cachedSettings = null;
        Cache::forget(self::CACHE_KEY);
        Cache::forget(self::LANGUAGES_CACHE_KEY);
    }

    public function set(string $key, mixed $value): void
    {
        WebsiteSetting::updateOrCreate(
            ['key' => $key],
            ['value' => is_bool($value) ? ($value ? '1' : '0') : (string) $value],
        );

        // Clear cache to ensure fresh values are fetched
        self::clearCache();
    }

    private function settings(): Collection
    {
        if ($this->isInstallationIncomplete()) {
            return $this->fetchSettings();
        }

        $this->cachedSettings = collect(Cache::rememberForever(self::CACHE_KEY, fn () => $this->fetchSettings()->toArray()));

        return $this->cachedSettings;
    }

    private function isInstallationIncomplete(): bool
    {
        try {
            return ! $this->installationService->isComplete();
        } catch (Throwable) {
            return true;
        }
    }

    private function fetchSettings(): Collection
    {
        try {
            if (! Schema::hasTable('website_settings')) {
                return collect();
            }

            return WebsiteSetting::query()->pluck('value', 'key');
        } catch (Throwable) {
            return collect();
        }
    }
}