import gradio as gr
from huggingface_hub import InferenceClient
import os
import requests
from typing import List, Dict, Union
import concurrent.futures
import base64

# 환경 변수에서 토큰 가져오기
HF_TOKEN = os.getenv("HF_TOKEN")

# 추론 API 클라이언트 설정
hf_client = InferenceClient("CohereForAI/c4ai-command-r-plus-08-2024", token=HF_TOKEN)

# 전역 변수로 선택된 space 정보 저장
selected_space_info = None

def get_headers():
    if not HF_TOKEN:
        raise ValueError("Hugging Face token not found in environment variables")
    return {"Authorization": f"Bearer {HF_TOKEN}"}

def get_most_liked_spaces(limit: int = 100) -> Union[List[Dict], str]:
    url = "https://huggingface.co/api/spaces"
    params = {
        "sort": "likes",
        "direction": -1,
        "limit": limit,
        "full": "true"
    }
    
    try:
        response = requests.get(url, params=params, headers=get_headers())
        response.raise_for_status()
        data = response.json()
        
        if isinstance(data, list):
            return data
        else:
            return f"Unexpected API response format: {type(data)}"
    except requests.RequestException as e:
        return f"API request error: {str(e)}"
    except ValueError as e:
        return f"JSON decoding error: {str(e)}"

def capture_thumbnail(space_id: str) -> str:
    screenshot_url = f"https://huggingface.co/spaces/{space_id}/screenshot.jpg"
    try:
        response = requests.get(screenshot_url, headers=get_headers())
        if response.status_code == 200:
            return base64.b64encode(response.content).decode('utf-8')
    except requests.RequestException:
        pass
    return ""

def get_app_py_content(space_id: str) -> str:
    app_py_url = f"https://huggingface.co/spaces/{space_id}/raw/main/app.py"
    try:
        response = requests.get(app_py_url, headers=get_headers())
        if response.status_code == 200:
            return response.text
        else:
            return f"app.py file not found or inaccessible for space: {space_id}"
    except requests.RequestException:
        return f"Error fetching app.py content for space: {space_id}"

def format_space(space: Dict) -> Dict:
    space_id = space.get('id', 'Unknown')
    space_name = space_id.split('/')[-1] if '/' in space_id else space_id
    
    space_author = space.get('author', 'Unknown')
    if isinstance(space_author, dict):
        space_author = space_author.get('user', space_author.get('name', 'Unknown'))
    
    space_likes = space.get('likes', 'N/A')
    space_url = f"https://huggingface.co/spaces/{space_id}"
    
    thumbnail = capture_thumbnail(space_id)
    
    return {
        "id": space_id,
        "name": space_name,
        "author": space_author,
        "likes": space_likes,
        "url": space_url,
        "thumbnail": thumbnail
    }

def format_spaces(spaces: Union[List[Dict], str]) -> List[Dict]:
    if isinstance(spaces, str):
        return [{"error": spaces}]
    
    with concurrent.futures.ThreadPoolExecutor(max_workers=10) as executor:
        return list(executor.map(format_space, spaces))

def summarize_space(space: Dict) -> str:
    system_message = "당신은 Hugging Face Space의 내용을 요약하는 AI 조수입니다. 주어진 정보를 바탕으로 간결하고 명확한 요약을 제공해주세요."
    user_message = f"다음 Hugging Face Space를 요약해주세요: {space['name']} by {space['author']}. 좋아요 수: {space['likes']}. URL: {space['url']}"
    
    messages = [
        {"role": "system", "content": system_message},
        {"role": "user", "content": user_message}
    ]
    
    response = hf_client.chat_completion(messages, max_tokens=150, temperature=0.7)
    return response.choices[0].message.content

def create_ui():
    spaces_list = get_most_liked_spaces()
    formatted_spaces = format_spaces(spaces_list)
    print(f"Total spaces loaded: {len(formatted_spaces)}")  # 디버깅 출력

    with gr.Blocks() as demo:
        gr.Markdown("# Hugging Face Most Liked Spaces")
        
        with gr.Row():
            with gr.Column(scale=1):
                space_list = gr.List(
                    [(f"{space['name']} by {space['author']} (Likes: {space['likes']})", space['id']) for space in formatted_spaces],
                    label="Most Liked Spaces"
                )
                summarize_btn = gr.Button("요약")
            
            with gr.Column(scale=2):
                output = gr.Textbox(label="Space 정보", lines=10)
                app_py_content = gr.Code(language="python", label="app.py 내용")

        def on_select(evt: gr.SelectData):
            global selected_space_info
            selected_id = evt.value[1]  # tuple의 두 번째 요소가 space_id입니다.
            selected_space = next((space for space in formatted_spaces if space['id'] == selected_id), None)
            if selected_space:
                app_content = get_app_py_content(selected_id)
                selected_space_info = selected_space
                print(f"Selected space: {selected_space['name']}")  # 디버깅 출력
                return f"선택된 Space: {selected_space['name']} (ID: {selected_id})\nURL: {selected_space['url']}", app_content
            print(f"Selected space not found for ID: {selected_id}")  # 디버깅 출력
            return "선택된 space를 찾을 수 없습니다.", ""

        def on_summarize():
            global selected_space_info
            if selected_space_info:
                summary = summarize_space(selected_space_info)
                print(f"Summarizing space: {selected_space_info['name']}")  # 디버깅 출력
                return summary
            print("No space selected for summarization")  # 디버깅 출력
            return "선택된 space가 없습니다. 먼저 리스트에서 space를 선택해주세요."

        space_list.select(on_select, None, [output, app_py_content])
        summarize_btn.click(on_summarize, None, output)

    return demo

if __name__ == "__main__":
    demo = create_ui()
    demo.launch()