import vdf
import sys

def copy_kvs(english_keys: vdf.VDFDict, chinese_keys: vdf.VDFDict, output: vdf.VDFDict):
    for key in chinese_keys:
        if not isinstance(chinese_keys[key], str):
            output[key] = vdf.VDFDict()
            copy_kvs(english_keys[key], chinese_keys[key], output[key])
        elif key in english_keys and len(english_keys[key]) > 0:
            output[key] = english_keys[key]
        else:
            output[key] = chinese_keys[key]

def main(english_keyfile: str, chinese_keyfile: str, output_file: str, chinese_encoding: str, english_encoding: str):
    if chinese_encoding is None:
        chinese_encoding = 'utf8'
    if english_encoding is None:
        english_encoding = 'utf8'
    chinese = vdf.load(open(chinese_keyfile, encoding=chinese_encoding), mapper=vdf.VDFDict)
    english = vdf.load(open(english_keyfile, encoding=english_encoding), mapper=vdf.VDFDict)
    output = vdf.VDFDict()
    copy_kvs(english, chinese, output)
    vdf.dump(output, open(output_file, 'w'),pretty=True)
args = sys.argv[1:]
main(args[0], args[1], args[2], args[3], args[4])