import gradio as gr

def calculate_grade(att_weeks, ass_count, mid, fin):
    # 邏輯計算
    att_score = (att_weeks / 18) * 100 * 0.50
    ass_score = (ass_count / 18) * 100 * 0.20
    mid_weighted = mid * 0.10
    fin_weighted = fin * 0.20
    
    total = att_score + ass_score + mid_weighted + fin_weighted
    
    # 準備結果文字
    status = "✅ PASS - 及格" if total >= 60 else "🛑 FAIL - 不及格"
    
    result_text = f"""
    ### 📊 計算結果
    - **最終總分：{total:.2f} 分**
    - **判定結果：{status}**
    ---
    #### 詳細得分明細：
    - 出席得分：{att_score:.1f} / 50
    - 作業得分：{ass_score:.1f} / 20
    - 期中得分：{mid_weighted:.1f} / 10
    - 期末得分：{fin_weighted:.1f} / 20
    """
    return result_text

# 建立 Gradio 介面
with gr.Blocks() as demo:
    gr.Markdown("# 🎓 18週課程成績直覺計算器")
    gr.Markdown("請輸入你的各項成績，系統將自動換算加權總分。")
    
    with gr.Row():
        att_input = gr.Slider(0, 18, step=1, label="📍 出席週數 (0-18)")
        ass_input = gr.Slider(0, 18, step=1, label="📝 作業完成次數 (0-18)")
    
    with gr.Row():
        mid_input = gr.Number(label="📝 期中考分數 (0-100)", value=0)
        fin_input = gr.Number(label="📝 期末考分數 (0-100)", value=0)
        
    calc_btn = gr.Button("計算總分", variant="primary")
    output = gr.Markdown()
    
    # 綁定按鈕動作
    calc_btn.click(
        fn=calculate_grade, 
        inputs=[att_input, ass_input, mid_input, fin_input], 
        outputs=output
    )

demo.launch()