first commit 🐈

README.md

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+# Laravel ChatGPT
+
+### Documentation
+
+1. Installation:

composer.json

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+{
+    "name": "ogrre/laravel-chatgpt",
+    "description": "Package to add chat management for openai client",
+    "type": "library",
+    "require": {
+        "php" : "^7.3|^8.0|^8.1",
+        "illuminate/database": "^7.0|^8.0|^9.0",
+        "illuminate/support": "10.x-dev"
+    },
+    "homepage": "https://github.com/ogrre/laravel-chatgpt",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Ogrre",
+            "homepage": "https://jbloup.dev",
+            "role": "Developer"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "Ogrre\\ChatGPT\\": "src/"
+        }
+    },
+    "config": {
+        "sort-packages": true
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
+}

config/chatgpt.php

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+<?php
+
+return [
+
+];

database/create_chat_gpt_tables.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('chats', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->timestamps();
+
+            $table->string('model_type');
+            $table->unsignedBigInteger('model_id');
+
+            $table->primary(['id', 'model_type', 'model_id']);
+        });
+
+        Schema::create('messages', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->string('role');
+            $table->text('content');
+            $table->unsignedBigInteger('chat_id');
+            $table->foreign('chat_id')
+                ->references('id')
+                ->on('chats')
+                ->onDelete('cascade');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('chats');
+        Schema::dropIfExists('messages');
+    }
+};

database/migrations/create_chat_gpt_tables.php.stub

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('chats', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->timestamps();
+
+            $table->string('model_type');
+            $table->unsignedBigInteger('model_id');
+
+            $table->primary(['id', 'model_type', 'model_id']);
+        });
+
+        Schema::create('messages', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->string('role');
+            $table->text('content');
+            $table->unsignedBigInteger('chat_id');
+            $table->foreign('chat_id')
+                ->references('id')
+                ->on('chats')
+                ->onDelete('cascade');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('chats');
+        Schema::dropIfExists('messages');
+    }
+};

src/ChatRegistrar.php

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+<?php
+
+namespace Ogrre\ChatGPT;
+
+use Ogrre\ChatGPT\Models\Chat;
+
+class ChatRegistrar
+{
+    protected string $chatClass;
+
+    public function __construct(){
+
+        $this->chatClass = config('chat.models.chat');
+    }
+
+    /**
+     * @return Chat
+     */
+    public function getChatClass(): Chat
+    {
+        return app($this->chatClass);
+    }
+}

src/ChatServiceProvider.php

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+<?php
+
+namespace Ogrre\ChatGPT;
+
+use Illuminate\Contracts\Container\BindingResolutionException;
+use Illuminate\Filesystem\Filesystem;
+use Illuminate\Support\Collection;
+use Illuminate\Support\ServiceProvider;
+
+class ChatServiceProvider extends ServiceProvider
+{
+    /**
+     * Register services.
+     *
+     * @return void
+     */
+    public function register(): void
+    {
+        $this->mergeConfigFrom(
+            __DIR__.'/../config/chat.php', 'chat'
+        );
+    }
+
+    /**
+     * Bootstrap services.
+     *
+     * @return void
+     * @throws BindingResolutionException
+     */
+    public function boot(): void
+    {
+        $this->app->singleton(ChatRegistrar::class, function (){
+            return new ChatRegistrar();
+        });
+
+        $this->publishes([
+            __DIR__.'/../config/chat.php' => config_path('chat.php'),
+        ], 'config');
+
+        $this->publishes([
+            __DIR__.'/../database/migrations/create_chat_gpt_tables.php.stub' => $this->getMigrationFileName('create_chat_gpt_tables.php'),
+        ], 'migrations');
+    }
+
+    /**
+     * @param $migrationFileName
+     * @return string
+     * @throws BindingResolutionException
+     */
+    protected function getMigrationFileName($migrationFileName): string
+    {
+        $timestamp = date('Y_m_d_His');
+
+        $filesystem = $this->app->make(Filesystem::class);
+
+        return Collection::make($this->app->databasePath() . DIRECTORY_SEPARATOR .'migrations'.DIRECTORY_SEPARATOR)
+            ->flatMap(function ($path) use ($filesystem, $migrationFileName) {
+                return $filesystem->glob($path.'*_'.$migrationFileName);
+            })
+            ->push($this->app->databasePath()."/migrations/{$timestamp}_{$migrationFileName}")
+            ->first();
+    }
+}

src/Models/Chat.php

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+<?php
+
+namespace Ogrre\ChatGPT\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+use OpenAI;
+
+class Chat extends Model
+{
+    public mixed $client;
+
+    public function __construct(array $attributes = [])
+    {
+        parent::__construct($attributes);
+        $this->client = OpenAI::client(config('openai.api_key'));
+    }
+
+    /**
+     * @var string[]
+     */
+    protected $fillable = [
+        'id',
+    ];
+
+    /**
+     * @var string
+     */
+    protected $table = 'chats';
+
+    /**
+     * @return HasMany
+     */
+    public function messages(): HasMany
+    {
+        return $this->hasMany(Message::class);
+    }
+
+    /**
+     * @param string $prompt
+     * @return $this
+     */
+    public function send(string $prompt): static
+    {
+        $messages = $this->messages();
+
+        $user_message = new Message();
+        $user_message->fill([
+            "role" => "user",
+            "content" => $prompt,
+        ]);
+        $messages->save($user_message);
+
+        $response = $this->client->chat()->create([
+            'model' => 'gpt-3.5-turbo',
+            'messages' => $messages,
+        ]);
+
+        $assistant_message = new Message();
+        $assistant_message->fill([
+            "role" => "assistant",
+            "content" => $response->choices[0]->message->content,
+
+        ]);
+        $messages->save($assistant_message);
+
+        return $this;
+    }
+}

src/Models/Message.php

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+<?php
+
+namespace Ogrre\ChatGPT\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Message extends Model
+{
+    /**
+     * @var string[]
+     */
+    protected $fillable = [
+        'id',
+        'role',
+        'content',
+        'chat_id',
+    ];
+
+    /**
+     * @var string
+     */
+    protected $table = 'messages';
+
+    /**
+     * @return BelongsTo
+     */
+    public function chat(): BelongsTo
+    {
+        return $this->belongsTo(Chat::class);
+    }
+}

src/Traits/HasChat.php

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+<?php
+
+namespace Ogrre\ChatGPT\Traits;
+
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Ogrre\ChatGPT\Models\Chat;
+
+trait HasChat
+{
+    /**
+     * @return HasMany
+     */
+    public function chats(): HasMany
+    {
+        return $this->hasMany(Chat::class);
+    }
+
+    /**
+     * @param string $prompt
+     * @param $chat_id
+     * @return Chat
+     */
+    public function chat(string $prompt, $chat_id = null): Chat
+    {
+        $chat = $chat_id ? Chat::find($chat_id) : new Chat();
+
+        $this->chats()->attach([$chat->id]);
+
+        return $chat->send($prompt);
+    }
+}