import gradio as gr
import requests
import json
import os
from datetime import datetime, timedelta

API_KEY = os.getenv("SERPHOUSE_API_KEY")

# 국가와 country_code 매핑
COUNTRY_CODES = {
    "United States": "US",
    "United Kingdom": "GB",
    "Canada": "CA",
    "Australia": "AU",
    "Germany": "DE",
    "France": "FR",
    "Japan": "JP",
    "South Korea": "KR",
    "China": "CN",
    "India": "IN",
    "Brazil": "BR",
    "Mexico": "MX",
    "Russia": "RU",
    "Italy": "IT",
    "Spain": "ES",
    "Netherlands": "NL",
    "Singapore": "SG",
    "Hong Kong": "HK"
}

MAJOR_COUNTRIES = list(COUNTRY_CODES.keys())

def search_serphouse(query, country, page=1, num_result=100):
    url = "https://api.serphouse.com/serp/live"
    
    now = datetime.utcnow()
    yesterday = now - timedelta(days=1)
    date_range = f"{yesterday.strftime('%Y-%m-%d')},{now.strftime('%Y-%m-%d')}"

    payload = {
        "data": {
            "q": query,
            "domain": "google.com",
            "country_code": COUNTRY_CODES.get(country, "US"),  # country_code 사용
            "lang": "en",
            "device": "desktop",
            "serp_type": "news",
            "page": str(page),
            "verbatim": "1",
            "num": str(num_result),
            "date_range": date_range
        }
    }

    headers = {
        "accept": "application/json",
        "content-type": "application/json",
        "authorization": f"Bearer {API_KEY}"
    }

    try:
        response = requests.post(url, json=payload, headers=headers)
        response.raise_for_status()
        return response.json()
    except requests.RequestException as e:
        return {"error": f"Error: {str(e)}"}

def format_results_from_raw(results):
    if isinstance(results, dict) and "error" in results:
        return "Error: " + results["error"], []

    try:
        news_results = results.get('results', {}).get('results', {}).get('news', [])
        if not news_results:
            return "검색 결과가 없습니다.", []

        articles = []
        for idx, result in enumerate(news_results, 1):
            articles.append({
                "index": idx,
                "title": result.get("title", "제목 없음"),
                "link": result.get("url", result.get("link", "#")),
                "snippet": result.get("snippet", "내용 없음"),
                "channel": result.get("channel", result.get("source", "알 수 없음")),
                "time": result.get("time", result.get("date", "알 수 없는 시간")),
                "image_url": result.get("img", result.get("thumbnail", ""))
            })
        return "", articles
    except Exception as e:
        return f"결과 처리 중 오류 발생: {str(e)}", []

def serphouse_search(query, country):
    results = search_serphouse(query, country)
    return format_results_from_raw(results)

css = """
footer {visibility: hidden;}
"""

with gr.Blocks(theme="Nymbo/Nymbo_Theme", css=css, title="NewsAI 서비스") as iface:
    gr.Markdown("검색어를 입력하고 원하는 국가를 선택하면, 검색어와 일치하는 24시간 이내 뉴스를 최대 100개 출력합니다.")

    with gr.Column():
        with gr.Row():
            query = gr.Textbox(label="검색어")
            country = gr.Dropdown(MAJOR_COUNTRIES, label="국가", value="South Korea")
            search_button = gr.Button("검색")

        status_message = gr.Markdown(visible=False)
        articles_state = gr.State([])

        article_components = []
        for i in range(100):
            with gr.Group(visible=False) as article_group:
                title = gr.Markdown()
                image = gr.Image(width=200, height=150)
                snippet = gr.Markdown()
                info = gr.Markdown()

                article_components.append({
                    'group': article_group,
                    'title': title,
                    'image': image,
                    'snippet': snippet,
                    'info': info,
                    'index': i,
                })

    def search_and_display(query, country, articles_state):
        error_message, articles = serphouse_search(query, country)
        outputs = []
        
        if error_message:
            outputs.append(gr.update(value=error_message, visible=True))
            for comp in article_components:
                outputs.extend([
                    gr.update(visible=False), gr.update(), gr.update(),
                    gr.update(), gr.update()
                ])
            articles_state = []
        else:
            outputs.append(gr.update(value="", visible=False))
            for idx, comp in enumerate(article_components):
                if idx < len(articles):
                    article = articles[idx]
                    image_url = article['image_url']
                    image_update = gr.update(value=image_url, visible=True) if image_url and not image_url.startswith('data:image') else gr.update(value=None, visible=False)

                    outputs.extend([
                        gr.update(visible=True),
                        gr.update(value=f"### [{article['title']}]({article['link']})"),
                        image_update,
                        gr.update(value=f"**요약:** {article['snippet']}"),
                        gr.update(value=f"**출처:** {article['channel']} | **시간:** {article['time']}")
                    ])
                else:
                    outputs.extend([
                        gr.update(visible=False), gr.update(), gr.update(),
                        gr.update(), gr.update()
                    ])
            articles_state = articles

        outputs.append(articles_state)
        outputs.append(gr.update(visible=False))
        return outputs

    search_outputs = [gr.Markdown(visible=False)]
    for comp in article_components:
        search_outputs.extend([comp['group'], comp['title'], comp['image'],
                             comp['snippet'], comp['info']])
    search_outputs.extend([articles_state, status_message])

    search_button.click(
        search_and_display,
        inputs=[query, country, articles_state],
        outputs=search_outputs,
        show_progress=False
    )

iface.launch()