import gradio as gr
import os
import shutil

def mock_question_answer(question, history):
    # 假資料模擬回答
    answers = {
        "文件的核心觀點是什麼？": "這份文件的核心觀點是關於人工智慧如何提升工作效率。",
        "有哪些關鍵詞或數據？": "關鍵詞包括：人工智慧、工作效率、數據分析。",
        "文件的摘要是什麼？": "這份文件討論了如何利用人工智慧工具，提升企業的運營效率和決策速度。"
    }
    response = answers.get(question, "抱歉，我無法回答這個問題。請嘗試其他問題！")
    history.append({"role": "user", "content": question})
    history.append({"role": "assistant", "content": response})
    return history, ""

def mock_summary():
    # 假資料模擬摘要
    return "這份文件主要討論人工智慧在工作效率提升方面的應用，並提供了實際案例來說明其價值。"

def add_to_file_list(file, file_list):
    if file:
        temp_path = f"/tmp/{file.name}"
        shutil.copy(file.name, temp_path)  # 將文件存儲到 /tmp
        file_list.append(temp_path)
    display_list = [os.path.basename(path) for path in file_list]
    return gr.update(choices=display_list), None  # 清空文件選擇框

def process_selected_files(selected_files, file_list):
    selected_paths = [path for path in file_list if os.path.basename(path) in selected_files]
    # 假資料模擬處理 RAG
    return f"已處理的文件: {', '.join(selected_paths)}"

def toggle_visibility(current_state):
    return gr.update(visible=not current_state)

with gr.Blocks() as demo:
    gr.Markdown("# AI Notes Assistant")

    with gr.Row():
        toggle_sources = gr.Button("顯示/隱藏 來源選單")
        toggle_chat = gr.Button("顯示/隱藏 對話區域")
        toggle_features = gr.Button("顯示/隱藏 功能卡片")

    with gr.Row():
        with gr.Column(visible=True) as source_column:
            gr.Markdown("### 來源選單")

            file_list = gr.State([])

            upload_file = gr.File(label="從電腦添加文件", file_types=[".txt", ".pdf", ".docx"])
            add_file_button = gr.Button("添加到來源列表")
            file_display = gr.CheckboxGroup(label="已上傳的文件", interactive=True)

            add_file_button.click(add_to_file_list, inputs=[upload_file, file_list], outputs=[file_display, upload_file])

            rag_button = gr.Button("處理選擇的文件")
            rag_result = gr.Textbox(label="處理結果", interactive=False)

            rag_button.click(process_selected_files, inputs=[file_display, file_list], outputs=[rag_result])

        with gr.Column(visible=True) as chat_column:
            gr.Markdown("### 對話區域")
            chatbot = gr.Chatbot(label="聊天記錄", type="messages")
            question = gr.Textbox(label="輸入問題，例如：文件的核心觀點是什麼？")
            ask_button = gr.Button("提問")

        with gr.Column(visible=True) as feature_column:
            gr.Markdown("### 功能卡片")
            with gr.Tab("摘要生成"):
                summary_button = gr.Button("生成摘要")
                summary = gr.Textbox(label="摘要", interactive=False)
            with gr.Tab("其他功能"):
                gr.Markdown("此處可以添加更多功能卡片")

    source_visible = gr.State(True)
    chat_visible = gr.State(True)
    feature_visible = gr.State(True)

    toggle_sources.click(toggle_visibility, inputs=source_visible, outputs=[source_column, source_visible])
    toggle_chat.click(toggle_visibility, inputs=chat_visible, outputs=[chat_column, chat_visible])
    toggle_features.click(toggle_visibility, inputs=feature_visible, outputs=[feature_column, feature_visible])

    history = gr.State([])
    ask_button.click(mock_question_answer, inputs=[question, history], outputs=[chatbot, chatbot])
    summary_button.click(mock_summary, inputs=[], outputs=[summary])

demo.launch()