<?php

namespace App\Services\LLM;

use App\Services\LLM\Contracts\ProviderInterface;
use App\Services\LLM\Providers\{
    OpenAIProvider,
    AnthropicProvider,
    MistralProvider,
    GeminiProvider,
    DeepSeekProvider
};

class ProviderFactory
{
    /**
     * Create a provider instance
     *
     * @param string $provider Provider name (openai, anthropic, mistral, gemini, deepseek)
     * @param string $apiKey API key for the provider
     * @return ProviderInterface
     * @throws \InvalidArgumentException
     */
    public static function create(string $provider, string $apiKey): ProviderInterface
    {
        return match (strtolower($provider)) {
            'openai' => new OpenAIProvider($apiKey),
            'anthropic' => new AnthropicProvider($apiKey),
            'mistral' => new MistralProvider($apiKey),
            'gemini' => new GeminiProvider($apiKey),
            'deepseek' => new DeepSeekProvider($apiKey),
            default => throw new \InvalidArgumentException("Unknown provider: {$provider}")
        };
    }

    /**
     * Get list of supported providers
     *
     * @return array
     */
    public static function getSupportedProviders(): array
    {
        return [
            'openai',
            'anthropic',
            'mistral',
            'gemini',
            'deepseek',
        ];
    }

    /**
     * Check if a provider is supported
     *
     * @param string $provider
     * @return bool
     */
    public static function isSupported(string $provider): bool
    {
        return in_array(strtolower($provider), self::getSupportedProviders());
    }
}