added console command to talk with openai

.env

@@ -27,3 +27,5 @@ APP_SECRET=cc5533299b0fa8bcc05cca4ebe21f6dd
 DATABASE_URL="mysql://root:0000@mysql:3306/app"
 # DATABASE_URL="postgresql://app:[email protected]:5432/app?serverVersion=15&charset=utf8"
 ###< doctrine/doctrine-bundle ###
+
+OPENAI_API_KEY=""

config/services.yaml

@@ -26,3 +26,9 @@ services:
 
     # add more service definitions when explicit configuration is needed
     # please note that last definitions always *replace* previous ones
+
+    GuzzleHttp\Client:
+
+    App\OpenAI\GuzzleOpenAIClient:
+        arguments:
+            $openaiApiKey: '%env(string:OPENAI_API_KEY)%'

src/Console/OpenAICommand.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Console;
+
+use App\OpenAI\Language;
+use App\OpenAI\OpenAIClient;
+use App\OpenAI\Responder;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+final class OpenAICommand extends Command
+{
+    public function __construct(private OpenAIClient $openAIClient)
+    {
+        parent::__construct();
+    }
+
+    protected function configure(): void
+    {
+        $this->setName('openai:ask');
+        $this->addArgument('question', InputArgument::REQUIRED, 'Your question');
+        $this->addOption('responder', null, InputOption::VALUE_REQUIRED, 'Who do you want to respond to you?');
+        $this->addOption('language', null, InputOption::VALUE_REQUIRED, 'what language do you want your answer in?');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        if ($input->getOption('responder')) {
+            $this->openAIClient->setResponder(Responder::tryFrom(strtolower($input->getOption('responder'))));
+        }
+
+        if ($input->getOption('language')) {
+            $this->openAIClient->setLanguage(Language::tryFrom(strtolower($input->getOption('language'))));
+        }
+
+        $answer = $this->openAIClient->ask($input->getArgument('question'));
+
+        $output->writeln($answer);
+
+        return Command::SUCCESS;
+    }
+}

src/OpenAI/GuzzleOpenAIClient.php

@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\OpenAI;
+
+use GuzzleHttp\Client;
+
+final class GuzzleOpenAIClient implements OpenAIClient
+{
+    private const URL = 'https://api.openai.com/v1/chat/completions';
+    private ?Responder $responder = null;
+    private ?Language $language = null;
+
+    public function __construct(private readonly Client $client, private readonly string $openaiApiKey)
+    {
+    }
+
+    public function setResponder(?Responder $responder): void
+    {
+        if ($responder === null) {
+            return;
+        }
+
+        $this->responder = $responder;
+    }
+
+    public function setLanguage(?Language $language): void
+    {
+        if ($language === null) {
+            return;
+        }
+
+        $this->language = $language;
+    }
+
+    public function ask(string $prompt): string
+    {
+        $headers = [
+            'Authorization' => 'Bearer ' . $this->openaiApiKey,
+            'Accept' => 'application/json',
+        ];
+
+        $params = [
+            'messages' => [],
+            'model' => 'gpt-3.5-turbo',
+            'temperature' => 0,
+        ];
+
+        if ($this->responder) {
+            $params['messages'][] = ['role' => 'system', 'content' => sprintf('Pretend you are the following person: %s', $this->responder->value)];
+        }
+
+        if ($this->language) {
+            $params['messages'][] = ['role' => 'system', 'content' => sprintf('Answer in the following language: %s', $this->language->value)];
+        }
+
+        $params['messages'][] = ['role' => 'user', 'content' => $prompt];
+
+        $response = $this->client->post(self::URL, [
+            'headers' => $headers,
+            'json' => $params,
+        ]);
+
+        $contents = json_decode($response->getBody()->getContents(), true, 512, JSON_THROW_ON_ERROR);
+
+        return $contents['choices'][0]['message']['content'];
+    }
+}

src/OpenAI/Language.php

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\OpenAI;
+
+enum Language: string
+{
+    case ENGLISH = 'english';
+    case DUTCH = 'dutch';
+    case GERMAN = 'german';
+    case FRENCH = 'french';
+}

src/OpenAI/OpenAIClient.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\OpenAI;
+
+interface OpenAIClient
+{
+    public function setResponder(?Responder $responder): void;
+
+    public function setLanguage(?Language $language): void;
+
+    public function ask(string $prompt): string;
+}

src/OpenAI/Responder.php

@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\OpenAI;
+
+enum Responder: string
+{
+    case MACHO_MAN_RANDY_SAVAGE = 'randysavage';
+    case CAPTAIN_JACK_SPARROW = 'jacksparrow';
+    case PIKACHU = 'pikachu';
+}