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import os
import pandas as pd
import gradio as gr
from datetime import datetime
import openai

##############################
# [LLM์ž๋ฃŒ] ์—์„œ ์ œ๊ณต๋œ ์ฝ”๋“œ ์‹œ์ž‘
##############################
# OpenAI API ํด๋ผ์ด์–ธํŠธ ์„ค์ •
openai.api_key = os.getenv("OPENAI_API_KEY")

def call_api(content, system_message, max_tokens, temperature, top_p):
    response = openai.ChatCompletion.create(
        model="gpt-4o-mini",  # ๋ฐ˜๋“œ์‹œ gpt-4o-mini ๋ชจ๋ธ ์‚ฌ์šฉ
        messages=[
            {"role": "system", "content": system_message},
            {"role": "user", "content": content},
        ],
        max_tokens=max_tokens,
        temperature=temperature,
        top_p=top_p,
    )
    return response.choices[0].message['content']
##############################
# [LLM์ž๋ฃŒ] ์—์„œ ์ œ๊ณต๋œ ์ฝ”๋“œ ๋
##############################


##############################
# [๊ธฐ๋ณธ์ฝ”๋“œ] ์‹œ์ž‘ (์ˆ˜์ • ๋ฐ ์‚ญ์ œ ๋ถˆ๊ฐ€)
##############################
def read_excel_data(file):
    df = pd.read_excel(file, usecols="A, B, C, D, E", skiprows=1,
                       names=["ID", "Review Date", "Option", "Review", "ReviewScore"], engine='openpyxl')
    df['Review Date'] = pd.to_datetime(df['Review Date']).dt.tz_localize(None).dt.date
    df['Year'] = df['Review Date'].astype(str).str.slice(0, 4)
    df['Option1'] = df['Option'].astype(str).str.split(" / ").str[0]  # 1์ฐจ ์˜ต์…˜ ์ถ”์ถœ
    df['Review Length'] = df['Review'].str.len()  # ๋ฆฌ๋ทฐ ๊ธธ์ด ๊ณ„์‚ฐ
    return df

def get_positive_reviews(df):
    positive_reviews = df[df['ReviewScore'] >= 4].sort_values(by='Review Length', ascending=False)
    positive_reviews = positive_reviews.head(20)  # ์ƒ์œ„ 20๊ฐœ ๋ฆฌ๋ทฐ ์„ ํƒ

    positive_reviews.reset_index(drop=True, inplace=True)
    positive_reviews.index += 1
    positive_reviews['์ˆœ๋ฒˆ'] = positive_reviews.index

    positive_output = "\n\n".join(positive_reviews.apply(
        lambda x: f"{x['์ˆœ๋ฒˆ']}. **{x['Review Date']} / {x['ID']} / {x['Option']}**\n\n{x['Review']}", axis=1))
    return positive_output

def get_negative_reviews(df):
    negative_reviews = df[df['ReviewScore'] <= 2].sort_values(by='Review Length', ascending=False)
    negative_reviews = negative_reviews.head(30)  # ์ƒ์œ„ 30๊ฐœ ๋ฆฌ๋ทฐ ์„ ํƒ

    negative_reviews.reset_index(drop=True, inplace=True)
    negative_reviews.index += 1
    negative_reviews['์ˆœ๋ฒˆ'] = negative_reviews.index

    negative_output = "\n\n".join(negative_reviews.apply(
        lambda x: f"{x['์ˆœ๋ฒˆ']}. **{x['Review Date']} / {x['ID']} / {x['Option']}**\n\n{x['Review']}", axis=1))
    return negative_output

def process_reviews(file):
    df = read_excel_data(file)
    positive_reviews = get_positive_reviews(df)
    negative_reviews = get_negative_reviews(df)
    return positive_reviews, negative_reviews
##############################
# [๊ธฐ๋ณธ์ฝ”๋“œ] ๋ (์ˆ˜์ • ๋ฐ ์‚ญ์ œ ๋ถˆ๊ฐ€)
##############################


# LLM ๋ถ„์„์„ ์œ„ํ•œ ํ—ฌํผ ํ•จ์ˆ˜
def analyze_with_llm(review_content, system_prompt):
    # review_content: ๊ธ์ • ํ˜น์€ ๋ถ€์ • ๋ฆฌ๋ทฐ ํ…์ŠคํŠธ
    # system_prompt: ์‹œ์Šคํ…œ ์—ญํ•  ํ”„๋กฌํ”„ํŠธ
    analysis_result = call_api(
        content=review_content,
        system_message=system_prompt,
        max_tokens=500,
        temperature=0.7,
        top_p=1.0
    )
    return analysis_result

# ๋ฆฌ๋ทฐ๋ฅผ ์ถ”์ถœํ•œ ๋’ค, ์ž๋™์œผ๋กœ LLM ๋ถ„์„๊นŒ์ง€ ์ˆ˜ํ–‰
def process_reviews_and_analyze(file):
    # ๊ธฐ์กด ๋ฆฌ๋ทฐ ์ถ”์ถœ
    positive_reviews, negative_reviews = process_reviews(file)

    # ๊ธ์ • ๋ฆฌ๋ทฐ ๋ถ„์„
    system_prompt_positive = (
        "๋‹น์‹ ์€ ์ „๋ฌธ ๋ฆฌ๋ทฐ ๋ถ„์„๊ฐ€์ž…๋‹ˆ๋‹ค. ์•„๋ž˜์—๋Š” ๊ธ์ • ๋ฆฌ๋ทฐ๋“ค์ด ๋‚˜์—ด๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.\n"
        "์ด ๋ฆฌ๋ทฐ๋“ค์—์„œ ๊ณ ๊ฐ์ด ๋งŒ์กฑํ•ดํ•˜๋Š” ์ฃผ์š” ํฌ์ธํŠธ์™€ ํŠน์ง•์„ ์š”์•ฝํ•ด์ฃผ๊ณ , "
        "์ถ”๊ฐ€์ ์ธ ์ธ์‚ฌ์ดํŠธ๋ฅผ ์ œ์‹œํ•ด ์ฃผ์„ธ์š”."
    )
    positive_analysis = analyze_with_llm(positive_reviews, system_prompt_positive)

    # ๋ถ€์ • ๋ฆฌ๋ทฐ ๋ถ„์„
    system_prompt_negative = (
        "๋‹น์‹ ์€ ์ „๋ฌธ ๋ฆฌ๋ทฐ ๋ถ„์„๊ฐ€์ž…๋‹ˆ๋‹ค. ์•„๋ž˜์—๋Š” ๋ถ€์ • ๋ฆฌ๋ทฐ๋“ค์ด ๋‚˜์—ด๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.\n"
        "์ด ๋ฆฌ๋ทฐ๋“ค์—์„œ ๊ณ ๊ฐ์ด ๋ถˆ๋งŒ์„ ๊ฐ€์ง€๋Š” ์ฃผ์š” ํฌ์ธํŠธ์™€ ํŠน์ง•์„ ์š”์•ฝํ•ด์ฃผ๊ณ , "
        "๊ฐœ์„ ์ ์„ ์ œ์‹œํ•ด ์ฃผ์„ธ์š”."
    )
    negative_analysis = analyze_with_llm(negative_reviews, system_prompt_negative)

    return positive_reviews, negative_reviews, positive_analysis, negative_analysis

# Gradio ์ธํ„ฐํŽ˜์ด์Šค ๊ตฌ์„ฑ
def create_interface():
    with gr.Blocks() as demo:
        gr.Markdown("### ๋ฆฌ๋ทฐ ๋ฐ์ดํ„ฐ ์—…๋กœ๋“œ")
        file_input = gr.File(label="์—‘์…€ ํŒŒ์ผ ์—…๋กœ๋“œ", file_types=[".xlsx"])
        
        # ๋ฒ„ํŠผ๋ช… ๋ณ€๊ฒฝ: "๋ฆฌ๋ทฐ๋ถ„์„"
        analyze_button = gr.Button("๋ฆฌ๋ทฐ๋ถ„์„")

        with gr.Column():
            gr.Markdown("### ๊ธ์ •์ ์ธ ์ฃผ์š” ๋ฆฌ๋ทฐ (์ตœ๋Œ€ 20๊ฐœ)")
            positive_reviews_output = gr.Textbox(label="๊ธ์ •์ ์ธ ์ฃผ์š” ๋ฆฌ๋ทฐ", interactive=False, lines=20)
            gr.Markdown("### ๋ถ€์ •์ ์ธ ์ฃผ์š” ๋ฆฌ๋ทฐ (์ตœ๋Œ€ 30๊ฐœ)")
            negative_reviews_output = gr.Textbox(label="๋ถ€์ •์ ์ธ ์ฃผ์š” ๋ฆฌ๋ทฐ", interactive=False, lines=30)
            
            # LLM ๋ถ„์„ ๊ฒฐ๊ณผ๋ฅผ ํ‘œ์‹œํ•  ์˜์—ญ
            gr.Markdown("### ๊ธ์ • ๋ฆฌ๋ทฐ ๋ถ„์„ ๊ฒฐ๊ณผ")
            positive_analysis_output = gr.Textbox(label="๊ธ์ • ๋ฆฌ๋ทฐ ๋ถ„์„", interactive=False, lines=7)
            gr.Markdown("### ๋ถ€์ • ๋ฆฌ๋ทฐ ๋ถ„์„ ๊ฒฐ๊ณผ")
            negative_analysis_output = gr.Textbox(label="๋ถ€์ • ๋ฆฌ๋ทฐ ๋ถ„์„", interactive=False, lines=7)

        # ๋ฆฌ๋ทฐ ์ถ”์ถœ + LLM ๋ถ„์„๊นŒ์ง€ ํ•œ ๋ฒˆ์— ์ˆ˜ํ–‰
        analyze_button.click(
            fn=process_reviews_and_analyze,
            inputs=[file_input],
            outputs=[
                positive_reviews_output, 
                negative_reviews_output,
                positive_analysis_output, 
                negative_analysis_output
            ]
        )

    return demo

if __name__ == "__main__":
    interface = create_interface()
    interface.launch()