#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
按区域坐标裁剪图片并保存
用法: python img-crop.py <input_path> <output_path> <x> <y> <width> <height>
"""

import sys
from pathlib import Path

try:
    from PIL import Image
except ImportError:
    print('{"success": false, "error": "请安装 Pillow: pip install pillow"}')
    sys.exit(1)

def main():
    if len(sys.argv) != 7:
        print('{"success": false, "error": "用法: img-crop.py <input> <output> <x> <y> <width> <height>"}')
        sys.exit(1)

    input_path = sys.argv[1]
    output_path = sys.argv[2]
    x, y, w, h = int(sys.argv[3]), int(sys.argv[4]), int(sys.argv[5]), int(sys.argv[6])

    img = Image.open(input_path).convert('RGB')
    cropped = img.crop((x, y, x + w, y + h))
    Path(output_path).parent.mkdir(parents=True, exist_ok=True)
    cropped.save(output_path)
    print('{"success": true}')
    sys.exit(0)

if __name__ == "__main__":
    main()