app.py

import gradio as gr
from google import genai
import httpx
import tempfile
import os

# Retrieve API key from environment variable
client = genai.Client(api_key=os.getenv("GOOGLE_API_KEY"))

def invoke(question):
    doc_url = "https://www.twse.com.tw/pdf/ch/"+question+"_ch.pdf"
    doc_data = httpx.get(doc_url)
    if doc_data.status_code != 200:
        response = '查無股票代號！請輸入台灣上市股票代號！'
    else:
        with tempfile.NamedTemporaryFile(suffix=".pdf", delete=False) as temp_file:
            temp_file.write(doc_data.content)
            temp_file_path = temp_file.name
        sample_doc = client.files.upload(file=temp_file_path)
        prompt = "你是投信分析師，請以中文分項說明公司股市價量表現、融資融卷、內外資進出及財務資訊，並分析近期公司股市展望給投資人具體的專業建議!"
        try:
            response = client.models.generate_content(
                                  model="gemini-2.0-flash",
                                  contents=[sample_doc, "請摘要說明"],
                                  config=genai.types.GenerateContentConfig(
                                  max_output_tokens=3000,
                                  temperature=0.3,)
                                  ).text
        except:
            response = 'Gemini 回應出錯！請輸入台灣上市股票代號！'
    return response
            
description = """請輸入台灣上市股票代號！"""

gr.close_all()

demo = gr.Interface(fn = invoke, 
                    inputs = [gr.Textbox(label = "Question", lines = 1)],
                    outputs = [gr.Textbox(label = "Response", lines = 1)],
                    title = "Generative AI - Gemini",
                    description = description)

demo.launch()