"""
表格结构分析控件
"""
import streamlit as st
from .drawing import clear_table_image_cache


def create_analysis_section(y_tolerance: int, x_tolerance: int, min_row_height: int):
    """
    创建分析区域
    
    Args:
        y_tolerance: Y轴聚类容差
        x_tolerance: X轴聚类容差
        min_row_height: 最小行高
    """
    if st.button("🔍 分析表格结构"):
        with st.spinner("分析中..."):
            try:
                generator = st.session_state.generator
                structure = generator.analyze_table_structure(
                    y_tolerance=y_tolerance,
                    x_tolerance=x_tolerance,
                    min_row_height=min_row_height
                )
                
                if not structure:
                    st.warning("⚠️ 未检测到表格结构")
                    st.stop()
                
                structure['modified_h_lines'] = set()
                structure['modified_v_lines'] = set()
                
                st.session_state.structure = structure
                st.session_state.undo_stack = []
                st.session_state.redo_stack = []
                clear_table_image_cache()
                
                st.success(
                    f"✅ 检测到 {len(structure['rows'])} 行"
                    f"（{len(structure['horizontal_lines'])} 条横线），"
                    f"{len(structure['columns'])} 列"
                    f"（{len(structure['vertical_lines'])} 条竖线）"
                )
                
                col1, col2, col3, col4 = st.columns(4)
                with col1:
                    st.metric("行数", len(structure['rows']))
                with col2:
                    st.metric("横线数", len(structure['horizontal_lines']))
                with col3:
                    st.metric("列数", len(structure['columns']))
                with col4:
                    st.metric("竖线数", len(structure['vertical_lines']))
            
            except Exception as e:
                st.error(f"❌ 分析失败: {e}")
                import traceback
                st.code(traceback.format_exc())
                st.stop()