<?php

declare(strict_types=1);

namespace App\Providers;

use App\Auth\LaraBlogUserProvider;
use App\Contracts\LlmProvider;
use App\Domain\Ai\OpenAiCompatibleLlmProvider;
use App\Domain\Ai\StubLlmProvider;
use App\Domain\Media\AttachmentStorageService;
use App\Domain\Plugin\PluginManager;
use App\Domain\Seo\SeoPresenter;
use App\Domain\Theme\RegistersSnippetSlots;
use App\Domain\Theme\ThemeManager;
use App\Models\User;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Blade;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    public function register(): void
    {
        $this->app->singleton(ThemeManager::class);
        $this->app->singleton(PluginManager::class);
        $this->app->singleton(AttachmentStorageService::class);
        $this->app->singleton(SeoPresenter::class);

        $this->app->bind(LlmProvider::class, function (): LlmProvider {
            $provider = env('AI_PROVIDER', 'stub');

            try {
                $provider = app(\App\Settings\AiSettings::class)->provider ?: $provider;
            } catch (\Throwable) {
                // settings table may be unavailable during early boot
            }

            return match ($provider) {
                'openai_compatible', 'openai' => $this->app->make(OpenAiCompatibleLlmProvider::class),
                default => $this->app->make(StubLlmProvider::class),
            };
        });
    }

    public function boot(): void
    {
        Auth::provider('larablog', function ($app, array $config) {
            return new LaraBlogUserProvider($app['hash'], $config['model'] ?? User::class);
        });

        // Always register default theme views; active theme may resolve later.
        $this->app->make(ThemeManager::class)->registerViewNamespaces();

        Blade::directive('themeslot', function (string $expression): string {
            return "<?php echo \\App\\Domain\\Theme\\ThemeSlot::render({$expression}); ?>";
        });

        // Always load discovered plugin migrations so `artisan migrate` works
        // before a plugin is enabled (enable → migrate chicken-and-egg).
        foreach ($this->app->make(PluginManager::class)->discover() as $manifest) {
            $migrations = rtrim((string) ($manifest['path'] ?? ''), '/').'/database/migrations';
            if (is_dir($migrations)) {
                $this->loadMigrationsFrom($migrations);
            }
        }

        // Filament AdminPanelProvider also registers plugins before panel id();
        // keep this for HTTP routes / hooks when the admin panel is unused.
        if (Schema::hasTable('plugins')) {
            $this->app->make(PluginManager::class)->registerEnabledProviders();
        }

        if (Schema::hasTable('settings')) {
            RegistersSnippetSlots::boot();
        }
    }
}