search_history.py

import gradio as gr
import traceback
from typing import Optional, Dict, List
from history_manager import UserHistoryManager

class SearchHistoryComponent:
    def __init__(self):
        """初始化搜索歷史組件"""
        self.history_manager = UserHistoryManager()

    def format_history_html(self, history_data: Optional[List[Dict]] = None) -> str:
        try:
            if history_data is None:
                history_data = self.history_manager.get_history()

            if not history_data:
                return """
                <div style='text-align: center; padding: 40px 20px;'>
                    <p>No search history yet. Try making some breed recommendations!</p>
                </div>
                """

            html = "<div class='history-container'>"
            
            # 對歷史記錄進行反轉，最新的顯示在前面
            for entry in reversed(history_data):
                timestamp = entry.get('timestamp', 'Unknown time')
                search_type = entry.get('search_type', 'criteria')
                results = entry.get('results', [])  # 確保我們有結果資料
                
                # 顯示時間戳記和搜尋類型
                html += f"""
                <div class="history-entry">
                    <div class="history-header" style="border-left: 4px solid #4299e1; padding-left: 10px;">
                        <span class="timestamp">🕒 {timestamp}</span>
                        <span class="search-type" style="color: #4299e1; font-weight: bold; margin-left: 10px;">
                            Search History
                        </span>
                    </div>
                """

                # 顯示搜尋參數
                if search_type == "criteria":
                    prefs = entry.get('preferences', {})
                    html += f"""
                    <div class="params-list" style="background: #f8fafc; padding: 16px; border-radius: 8px; margin-bottom: 16px;">
                        <h4 style="margin-bottom: 12px;">Search Parameters:</h4>
                        <ul style="display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;">
                            <li>Living Space: {prefs.get('living_space', 'N/A')}</li>
                            <li>Exercise Time: {prefs.get('exercise_time', 'N/A')} minutes</li>
                            <li>Grooming: {prefs.get('grooming_commitment', 'N/A')}</li>
                            <li>Experience: {prefs.get('experience_level', 'N/A')}</li>
                            <li>Children at Home: {"Yes" if prefs.get('has_children') else "No"}</li>
                            <li>Noise Tolerance: {prefs.get('noise_tolerance', 'N/A')}</li>
                        </ul>
                    </div>
                    """

                # 關鍵修改：確保結果部分始終顯示
                if results:  # 只有在有結果時才顯示結果區域
                    html += """
                    <div class="results-list" style="margin-top: 16px;">
                        <h4 style="margin-bottom: 12px;">Top 10 Breed Matches:</h4>
                        <div class="breed-list">
                    """
                    
                    # 顯示每個推薦結果
                    for i, result in enumerate(results[:10], 1):
                        breed = result.get('breed', 'Unknown breed')
                        score = result.get('overall_score', 0)  # 改用 overall_score
                        if isinstance(score, (int, float)):  # 確保分數是數字
                            score = float(score) * 100  # 轉換為百分比
                        
                        html += f"""
                        <div class="breed-item" style="margin-bottom: 8px;">
                            <div class="breed-info" style="display: flex; align-items: center; justify-content: space-between; padding: 8px; background: #f8fafc; border-radius: 6px;">
                                <span class="breed-rank" style="background: linear-gradient(135deg, #4299e1, #48bb78); color: white; padding: 4px 10px; border-radius: 6px; font-weight: 600; min-width: 40px; text-align: center;">#{i}</span>
                                <span class="breed-name" style="font-weight: 500; color: #2D3748; margin: 0 12px;">{breed.replace('_', ' ')}</span>
                                <span class="breed-score" style="background: #F0FFF4; color: #48BB78; padding: 4px 8px; border-radius: 4px; font-weight: 600;">{score:.1f}%</span>
                            </div>
                        </div>
                        """
                    
                    html += """
                        </div>
                    </div>
                    """

                html += "</div>"  # 關閉 history-entry div
            
            html += "</div>"  # 關閉 history-container div
            return html

        except Exception as e:
            print(f"Error formatting history: {str(e)}")
            print(traceback.format_exc())
            return f"""
            <div style='text-align: center; padding: 20px; color: #dc2626;'>
                Error formatting history. Please try refreshing the page.
                <br>Error details: {str(e)}
            </div>
            """

    def clear_history(self) -> str:
        """清除所有搜尋歷史"""
        try:
            success = self.history_manager.clear_all_history()
            print(f"Clear history result: {success}")
            return self.format_history_html()
        except Exception as e:
            print(f"Error in clear_history: {str(e)}")
            print(traceback.format_exc())
            return "Error clearing history"

    def refresh_history(self) -> str:
        """刷新歷史記錄顯示"""
        try:
            return self.format_history_html()
        except Exception as e:
            print(f"Error in refresh_history: {str(e)}")
            return "Error refreshing history"

    def save_search(self, user_preferences: Optional[dict] = None, 
                     results: list = None,
                     search_type: str = "criteria",
                     description: str = None) -> bool:
        """保存搜索結果
        Args:
            user_preferences: 使用者偏好設定 (僅用於criteria搜尋)
            results: 推薦結果列表
            search_type: 搜尋類型 ("criteria" 或 "description")
            description: 使用者輸入的描述 (僅用於description搜尋)
        """
        return self.history_manager.save_history(
            user_preferences=user_preferences,
            results=results,
            search_type='criteria',
        )

def create_history_component():
    """只創建實例"""
    return SearchHistoryComponent()

def create_history_tab(history_component: SearchHistoryComponent):
    """創建歷史紀錄的頁面

    Args:
        history_component: 
    """
    with gr.TabItem("Recommendation Search History"):
        gr.HTML("""
            <div style='text-align: center; padding: 20px;'>
                <h3 style='
                    color: #2D3748;
                    margin-bottom: 10px;
                    font-size: 1.5em;
                    background: linear-gradient(90deg, #4299e1, #48bb78);
                    -webkit-background-clip: text;
                    -webkit-text-fill-color: transparent;
                    font-weight: 600;
                '>Search History</h3>
                <div style='
                    text-align: center;
                    padding: 20px 0;
                    margin: 15px 0;
                    background: linear-gradient(to right, rgba(66, 153, 225, 0.1), rgba(72, 187, 120, 0.1));
                    border-radius: 10px;
                '>
                    <p style='
                        font-size: 1.2em;
                        margin: 0;
                        padding: 0 20px;
                        line-height: 1.5;
                        background: linear-gradient(90deg, #4299e1, #48bb78);
                        -webkit-background-clip: text;
                        -webkit-text-fill-color: transparent;
                        font-weight: 600;
                    '>
                        View your previous breed recommendations and search preferences
                    </p>
                </div>
            </div>
        """)

        with gr.Row():
            with gr.Column(scale=4):
                history_display = gr.HTML()

                with gr.Row():
                    with gr.Column(scale=1):
                        clear_history_btn = gr.Button(
                            "🗑️ Clear History",
                            variant="secondary",
                            size="sm"
                        )
                    with gr.Column(scale=1):
                        refresh_btn = gr.Button(
                            "🔄 Refresh",
                            variant="secondary",
                            size="sm"
                        )

                history_display.value = history_component.format_history_html()

                clear_history_btn.click(
                    fn=history_component.clear_history,
                    outputs=[history_display],
                    api_name="clear_history"
                )

                refresh_btn.click(
                    fn=history_component.refresh_history,
                    outputs=[history_display],
                    api_name="refresh_history"
                )