"""
批量将表格结构应用到所有页
"""

import json
from pathlib import Path
from table_line_generator import TableLineGenerator
from PIL import Image
from typing import List
import argparse


def batch_apply_table_structure(
    source_json_path: str,
    target_image_dir: str,
    output_dir: str,
    structure_config_path: str = None
):
    """
    批量应用表格结构
    
    Args:
        source_json_path: 源OCR结果JSON路径（用于生成初始结构）
        target_image_dir: 目标图片目录
        output_dir: 输出目录
        structure_config_path: 表格结构配置路径（可选）
    """
    # 1. 加载或生成表格结构
    if structure_config_path and Path(structure_config_path).exists():
        # 加载已有配置
        with open(structure_config_path, 'r') as f:
            structure = json.load(f)
        print(f"📂 加载表格结构: {structure_config_path}")
    else:
        # 生成新配置
        with open(source_json_path, 'r') as f:
            ocr_data = json.load(f)
        
        source_image_path = Path(source_json_path).with_suffix('.jpg')
        generator = TableLineGenerator(str(source_image_path), ocr_data)
        
        structure_info = generator.analyze_table_structure()
        structure = generator.save_table_structure(
            f"{output_dir}/table_structure.json"
        )
        print(f"✅ 生成表格结构配置")
    
    # 2. 查找所有目标图片
    target_images = list(Path(target_image_dir).glob("*.jpg"))
    target_images.extend(list(Path(target_image_dir).glob("*.png")))
    target_images = sorted(target_images)
    
    print(f"📁 找到 {len(target_images)} 个图片文件")
    
    # 3. 批量应用
    output_path = Path(output_dir)
    output_path.mkdir(parents=True, exist_ok=True)
    
    results = []
    for image_path in target_images:
        try:
            # 创建临时生成器（用于应用结构）
            generator = TableLineGenerator(str(image_path), [])
            generator.rows = structure.get('rows', [])
            generator.columns = structure.get('columns', [])
            generator.row_height = structure.get('row_height', 30)
            
            # 应用结构
            output_file = output_path / f"{image_path.stem}_with_lines.jpg"
            generator.apply_structure_to_image(
                str(image_path),
                structure,
                str(output_file)
            )
            
            results.append({
                'source': str(image_path),
                'output': str(output_file),
                'status': 'success'
            })
            print(f"✅ {image_path.name} → {output_file.name}")
            
        except Exception as e:
            results.append({
                'source': str(image_path),
                'status': 'error',
                'error': str(e)
            })
            print(f"❌ {image_path.name} 失败: {e}")
    
    # 保存结果
    with open(output_path / "batch_results.json", 'w') as f:
        json.dump(results, f, indent=2, ensure_ascii=False)
    
    success_count = sum(1 for r in results if r['status'] == 'success')
    print(f"\n🎉 完成！成功: {success_count}/{len(results)}")


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="批量应用表格结构")
    parser.add_argument('-s', '--source', required=True, help="源OCR结果JSON路径")
    parser.add_argument('-t', '--target', required=True, help="目标图片目录")
    parser.add_argument('-o', '--output', required=True, help="输出目录")
    parser.add_argument('-c', '--config', help="表格结构配置路径")
    
    args = parser.parse_args()
    
    batch_apply_table_structure(
        args.source,
        args.target,
        args.output,
        args.config
    )