From 80c5bd06e2cc266818cc63530e59dbfc07667e33 Mon Sep 17 00:00:00 2001
From: wpdev-mac-bashar <bbhuiyan1@gmail.com>
Date: Thu, 2 Mar 2023 02:40:37 +0600
Subject: [PATCH 1/3] added chatgpt (chat-completions) API

---
 README.md            | 20 ++++++++++++++++++++
 src/OpenAi.php       | 26 ++++++++++++++++++++++++++
 src/Url.php          |  9 +++++++++
 tests/OpenAiTest.php | 19 +++++++++++++++++++
 4 files changed, 74 insertions(+)

diff --git a/README.md b/README.md
index f5fb628..7338dbe 100644
--- a/README.md
+++ b/README.md
@@ -419,6 +419,26 @@ $classification = $open_ai->classification([
 ]);
 ```
 
+## Chat
+
+Given a chat conversation, the model will return a chat completion response.
+
+ ```php
+$complete = $open_ai->chat([
+    'model' => 'gpt-3.5-turbo',
+    'messages' => [
+        [
+            "role" => "user", 
+            "content": "Hello!"
+        ]
+    ],
+    'temperature' => 1.0,
+    'max_tokens' => 4096,
+    'frequency_penalty' => 0,
+    'presence_penalty' => 0,
+]);
+```
+
 ## Content Moderations
 
 Given a input text, outputs if the model classifies it as violating OpenAI's content policy.
diff --git a/src/OpenAi.php b/src/OpenAi.php
index 6ed4664..630af9e 100644
--- a/src/OpenAi.php
+++ b/src/OpenAi.php
@@ -200,6 +200,32 @@ public function moderation($opts)
         return $this->sendRequest($url, 'POST', $opts);
     }
 
+
+    /**
+     * @param $opts
+     * @param null $stream
+     * @return bool|string
+     * @throws Exception
+     */
+    public function chat($opts, $stream = null)
+    {
+        if ($stream != null && array_key_exists('stream', $opts)) {
+            if (! $opts['stream']) {
+                throw new Exception(
+                    'Please provide a stream function. Check https://github.com/orhanerday/open-ai#stream-example for an example.'
+                );
+            }
+
+            $this->stream_method = $stream;
+        }
+
+        $opts['model'] = $opts['model'] ?? $this->model;
+        $url = Url::chatUrl();
+        $this->baseUrl($url);
+
+        return $this->sendRequest($url, 'POST', $opts);
+    }
+
     /**
      * @param $opts
      * @return bool|string
diff --git a/src/Url.php b/src/Url.php
index aa86c8d..903971b 100644
--- a/src/Url.php
+++ b/src/Url.php
@@ -133,4 +133,13 @@ public static function embeddings(): string
     {
         return self::OPEN_AI_URL . "/embeddings";
     }
+
+    /**
+     * @param
+     * @return string
+     */
+    public static function chatUrl(): string
+    {
+        return self::OPEN_AI_URL . "/chat/completions";
+    }
 }
diff --git a/tests/OpenAiTest.php b/tests/OpenAiTest.php
index 22b83b8..2e8db54 100644
--- a/tests/OpenAiTest.php
+++ b/tests/OpenAiTest.php
@@ -227,3 +227,22 @@
 
     $this->assertStringContainsString('data', $result);
 })->group('working');
+
+
+it('should handle simple chat completion using the new endpoint', function () use ($open_ai) {
+    $result = $open_ai->chat([
+        'model' => 'gpt-3.5-turbo',
+        'messages' => [
+            [
+                "role" => "user",
+                "content" => "Hello!"
+            ]
+        ],
+        'temperature' => 0.9,
+        "max_tokens" => 150,
+        "frequency_penalty" => 0,
+        "presence_penalty" => 0,
+    ]);
+
+    $this->assertStringContainsString('text', $result);
+})->group('working');

From e93fc5bc5f4922e012495fd3f8ad115d45fa4402 Mon Sep 17 00:00:00 2001
From: wpdev-mac-bashar <bbhuiyan1@gmail.com>
Date: Thu, 2 Mar 2023 03:38:20 +0600
Subject: [PATCH 2/3] added chatgpt (chat-completions) API

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 7338dbe..e5f860d 100644
--- a/README.md
+++ b/README.md
@@ -429,7 +429,7 @@ $complete = $open_ai->chat([
     'messages' => [
         [
             "role" => "user", 
-            "content": "Hello!"
+            "content" => "Hello!"
         ]
     ],
     'temperature' => 1.0,

From db5cd5a10e72f75923239cfc73d65dae3595772a Mon Sep 17 00:00:00 2001
From: wpdev-mac-bashar <bbhuiyan1@gmail.com>
Date: Thu, 2 Mar 2023 04:13:32 +0600
Subject: [PATCH 3/3] added chatgpt (chat-completions) API

---
 src/OpenAi.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/OpenAi.php b/src/OpenAi.php
index 630af9e..fa7f17a 100644
--- a/src/OpenAi.php
+++ b/src/OpenAi.php
@@ -8,6 +8,7 @@ class OpenAi
 {
     private string $engine = "davinci";
     private string $model = "text-davinci-002";
+    private string $chatModel = "gpt-3.5-turbo";
     private array $headers;
     private array $contentTypes;
     private int $timeout = 0;
@@ -219,7 +220,7 @@ public function chat($opts, $stream = null)
             $this->stream_method = $stream;
         }
 
-        $opts['model'] = $opts['model'] ?? $this->model;
+        $opts['model'] = $opts['model'] ?? $this->chatModel;
         $url = Url::chatUrl();
         $this->baseUrl($url);