import os
from typing import Any
from PIL import Image
def convert_webp_to_png(webp_dir:str, png_dir:str,window:Any)->None:
    # 获取目录中以.webp结尾的文件列表
    webp_files = [f for f in os.listdir(webp_dir) if f.endswith('.webp')]
    # 获取文件总数
    nums = len(webp_files)
    # 初始化进度条计数器
    times = 0

    # 遍历所有webp文件
    for file_name in webp_files:
        # 构建webp文件的路径
        webp_file_path = os.path.join(webp_dir, file_name)
        # 构建输出的png文件路径
        png_file_path = os.path.join(png_dir, os.path.splitext(file_name)[0] + '.png')
        
        # 打开webp文件并保存为png
        with Image.open(webp_file_path) as img:
            img.save(png_file_path, 'PNG')
        
        # 更新进度条
        times += 1
        progress = int(times/nums*100)
        window.write_event_value("bar",{"current_count":progress} )
    print("Conversion completed.")