diff --git a/app.py b/app.py
index c5f2fba..04ebd1e 100644
--- a/app.py
+++ b/app.py
@@ -2,52 +2,55 @@ import requests
 import gradio as gr
 from openai import OpenAI
 
-client = OpenAI(
-    base_url = 'http://localhost:7869/v1',
-    api_key='ollama', # required, but unused
-)
+class ChatbotApp:
+    def __init__(self):
+        self.client = OpenAI(
+            base_url='http://localhost:7869/v1',
+            api_key='ollama',  # required, but unused
+        )
+        self.chat_history = []
 
-chat_history = []
+    def get_models(self):
+        response = requests.get("http://localhost:7869/api/tags")
+        models = response.json()["models"]
+        return [model["name"] for model in models]
 
-def get_models():
-    response = requests.get("http://localhost:7869/api/tags")
-    models = response.json()["models"]
-    return [model["name"] for model in models]
+    def ask(self, text, model):
+        self.chat_history.append({"role": "user", "content": text})
+        response = self.client.chat.completions.create(
+            model=model,
+            messages=self.chat_history
+        )
+        response_text = response.choices[0].message.content
+        self.chat_history.append({"role": "assistant", "content": response_text})
+        formatted_history = "\n".join([f"**{msg['role'].capitalize()}**: {msg['content']}" for msg in self.chat_history])
+        print("Formatted History: ", formatted_history)
+        return formatted_history, ""
 
-def ask(text, model):
-    global chat_history
-    chat_history.append({"role": "user", "content": text})
-    response = client.chat.completions.create(
-        model=model,
-        messages=chat_history
-    )
-    response_text = response.choices[0].message.content
-    chat_history.append({"role": "assistant", "content": response_text})
-    formatted_history = "\n".join([f"**{msg['role'].capitalize()}**: {msg['content']}" for msg in chat_history])
-    print("Formatted History: ", formatted_history)
-    return formatted_history, ""
+    def clear_history(self, model):
+        self.chat_history = []
+        # Reset the conversation on the server side
+        self.client.chat.completions.create(
+            model=model,
+            messages=[{"role": "system", "content": "Reset conversation"}]
+        )
+        return ""
 
-def clear_history(model):
-    global chat_history
-    chat_history = []
-    # Reset the conversation on the server side
-    client.chat.completions.create(
-        model=model,
-        messages=[{"role": "system", "content": "Reset conversation"}]
-    )
-    return ""
-    
+    def launch(self):
+        with gr.Blocks() as server:
+            with gr.Tab("Chatbot LF6"):
+                model_dropdown = gr.Dropdown(label="Select Model", choices=self.get_models())
+                chatbox = gr.Textbox(label="Chat History", lines=10, interactive=False)
+                input_text = gr.Textbox(label="Input Text", placeholder="Enter your text here...")
+                submit_button = gr.Button("Submit")
+                clear_button = gr.Button("Clear")
+                
+                submit_button.click(fn=lambda text, model: self.ask(text, model), inputs=[input_text, model_dropdown], outputs=[chatbox, input_text])
+                input_text.submit(fn=lambda text, model: self.ask(text, model), inputs=[input_text, model_dropdown], outputs=[chatbox, input_text])  # Submit on Enter key press
+                clear_button.click(fn=self.clear_history, inputs=model_dropdown, outputs=chatbox)
 
-with gr.Blocks() as server:
-    with gr.Tab("Chatbot LF6"):
-        model_dropdown = gr.Dropdown(label="Select Model", choices=get_models())
-        chatbox = gr.Textbox(label="Chat History", lines=10, interactive=False)
-        input_text = gr.Textbox(label="Input Text", placeholder="Enter your text here...")
-        submit_button = gr.Button("Submit")
-        clear_button = gr.Button("Clear")
-        
-        submit_button.click(fn=lambda text, model: ask(text, model), inputs=[input_text, model_dropdown], outputs=[chatbox, input_text])
-        input_text.submit(fn=lambda text, model: ask(text, model), inputs=[input_text, model_dropdown], outputs=[chatbox, input_text])  # Submit on Enter key press
-        clear_button.click(fn=clear_history, inputs=model_dropdown, outputs=chatbox)
+        server.launch()
 
-server.launch()
\ No newline at end of file
+if __name__ == "__main__":
+    app = ChatbotApp()
+    app.launch()
\ No newline at end of file