from PIL import Image
import sys
import os

def convert_to_minecraft_icon(input_path, output_path="server-icon.png"):
    try:
        with Image.open(input_path) as img:
            # 将图片转为RGBA模式（确保透明度兼容性）
            img = img.convert("RGBA")
            
            # 获取最小边长，中心裁剪为正方形
            min_side = min(img.size)
            left = (img.width - min_side) // 2
            top = (img.height - min_side) // 2
            right = left + min_side
            bottom = top + min_side
            img_cropped = img.crop((left, top, right, bottom))
            
            # 缩放为64x64像素
            img_resized = img_cropped.resize((64, 64), Image.LANCZOS)

            # 保存为PNG格式
            img_resized.save(output_path, format="PNG")
            print(f"✔ 成功生成 Minecraft 服务器图标: {output_path}")

    except Exception as e:
        print(f"❌ 处理失败: {e}")

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("用法: python convert_icon.py <输入图片路径>")
    else:
        convert_to_minecraft_icon(sys.argv[1])