<?php

declare(strict_types=1);

namespace App\Services\Ai;

use App\Models\AiProvider;
use InvalidArgumentException;

class AiServiceFactory
{
    /**
     * Create an AI service instance based on the provider.
     *
     * @param AiProvider|string $provider
     * @return AiServiceInterface
     */
    public static function make(AiProvider|string $provider): AiServiceInterface
    {
        if (is_string($provider)) {
            $provider = AiProvider::withTrashed()->where('slug', $provider)
                ->firstOrFail();
        }

        if (!$provider->is_active) {
            throw new InvalidArgumentException('AI provider is not active.');
        }

        return match ($provider->slug) {
            'openrouter', 'openrouter-test' => new OpenRouterService($provider),
            'stepfun' => new StepFunService($provider),
            'llamacpp' => new LlamaCppService($provider),
            default => throw new InvalidArgumentException("Unsupported AI provider: {$provider->slug}"),
        };
    }
}