app.py

import gradio as gr
import pandas as pd
import os
from openai import OpenAI
import json

OPEN_AI_KEY = os.getenv("OPEN_AI_KEY")
client = OpenAI(api_key=OPEN_AI_KEY)



def process_file(file):
    # 读取文件
    if file.name.endswith('.csv'):
        df = pd.read_csv(file)
    else:
        df = pd.read_excel(file)

    df_string = df.to_string()

    # 根据上传的文件内容生成问题
    questions = generate_questions(df_string)

    # 返回按钮文本和 DataFrame 字符串
    return questions[0] if len(questions) > 0 else "", \
           questions[1] if len(questions) > 1 else "", \
           questions[2] if len(questions) > 2 else "", \
           df_string

def update_buttons(df_string):
    # 根据上传的文件内容生成问题
    questions = generate_questions(df_string)
    return questions[:3]  # 确保返回三个问题


def generate_questions(df_string):
    # 使用 OpenAI 生成基于上传数据的问题

    sys_content = "你是一個資料分析師，user為老師，請精讀資料，並用既有資料為本質猜測用戶可能會問的問題，使用 zh-TW"
    user_content = f"請根據 {df_string} 生成三個問題，並用 JSON 格式返回 questions:[q1, q2, q3]"
    messages = [
        {"role": "system", "content": sys_content},
        {"role": "user", "content": user_content}
    ]
    response_format = { "type": "json_object" }

    print("=====messages=====")
    print(messages)
    print("=====messages=====")


    request_payload = {
        "model": "gpt-4-1106-preview",
        "messages": messages,
        "max_tokens": 2000,
        "response_format": response_format
    }

    response = client.chat.completions.create(**request_payload)
    questions = json.loads(response.choices[0].message.content)["questions"]
    print("=====json_response=====")
    print(questions)
    print("=====json_response=====")
    
    return questions

def send_question(question, df_string_output, chat_history):
    # 当问题按钮被点击时调用此函数
    return respond(question, df_string_output, chat_history)

def respond(user_message, df_string_output, chat_history):
    print("=== 變數：user_message ===")
    print(user_message)
    print("=== 變數：chat_history ===")
    print(chat_history)

    sys_content = f"你是一個資料分析師，請用 {df_string_output} 為資料進行對話，使用 zh-TW"
    messages = [
        {"role": "system", "content": sys_content},
        {"role": "user", "content": user_message}
    ]

    print("=====messages=====")
    print(messages)
    print("=====messages=====")


    request_payload = {
        "model": "gpt-4-1106-preview",
        "messages": messages,
        "max_tokens": 2000  # 設定一個較大的值，可根據需要調整
    }

    response = client.chat.completions.create(**request_payload)
    print(response)
    
    response_text = response.choices[0].message.content.strip()

    # 更新聊天历史
    new_chat_history = (user_message, response_text)
    if chat_history is None:
        chat_history = [new_chat_history]
    else:
        chat_history.append(new_chat_history)

    # 返回聊天历史和空字符串清空输入框
    return "", chat_history


def on_button_click(button, df_string_output, chat_history):
    # 当按钮被点击时发送对应的问题
    return respond(button, df_string_output, chat_history)

with gr.Blocks() as demo:
    with gr.Row():
        with gr.Column():
            file_upload = gr.File(label="Upload your file")
            chatbot = gr.Chatbot()
            msg = gr.Textbox(label="Message")
            send_button = gr.Button("Send")

        with gr.Column():
            df_string_output = gr.Textbox(label="raw data")

            with gr.Group():
                gr.Markdown("## 常用问题")
                btn_1 = gr.Button()
                btn_2 = gr.Button()
                btn_3 = gr.Button()

            
    send_button.click(
        respond, 
        inputs=[msg, df_string_output, chatbot], 
        outputs=[msg, chatbot]
    )

    # file_upload.change(process_file, inputs=file_upload, outputs=df_string_output)
    file_upload.change(process_file, inputs=file_upload, outputs=[btn_1, btn_2, btn_3, df_string_output])


    # 连接按钮点击事件
    btn_1.click(on_button_click, inputs=[btn_1, df_string_output, chatbot], outputs=[msg, chatbot])
    btn_2.click(on_button_click, inputs=[btn_2, df_string_output, chatbot], outputs=[msg, chatbot])
    btn_3.click(on_button_click, inputs=[btn_3, df_string_output, chatbot], outputs=[msg, chatbot])



demo.launch()