import os
import openai
import gradio as gr

try:
    openai.api_key = os.environ["OPENAI_API_KEY"]

except KeyError:
    error_message = "System is at capacity right now.Please try again later"
    print(error_message)
    def chatbot(input):
        return error_message
else:
    messages = [
        {"role": "system", "content": "My AI Assistant"},
    ]

messages = [
    {"role": "system", "content": ""},
]

def chatbot(input):
    try:
        if input:
            messages.append({"role": "user", "content": input})
            prompt = "\n".join([f"{m['role']}: {m['content']}" for m in messages])
            chat = openai.Completion.create(
                engine="text-davinci-003", prompt=prompt, max_tokens=1024, n=1, stop=None, temperature=0.7
            )
            reply = chat.choices[0].text.strip()
            messages.append({"role": "assistant", "content": reply})
            return reply
    except openai.error.OpenAIError as e:
        return "System is at capacity right now.Please try again later"

inputs = gr.inputs.Textbox(lines=7, label="Query")
outputs = gr.outputs.Textbox(label="Response")

gr.Interface(fn=chatbot, inputs=inputs, outputs=outputs,
             theme=gr.themes.Default(primary_hue="slate")).launch()