import os
import json

class i18nTranslator:
    def __init__(self):
        self.translations = {}

    def init(self, path):
        for filename in os.listdir(path):
            if filename.endswith('.json'):
                language = filename.split('.')[0]
                with open(os.path.join(path, filename), 'r') as file:
                    self.translations[language] = json.load(file)

    def trans(self, key, lng):
        if lng in self.translations and key in self.translations[lng]:
            return self.translations[lng][key]
        elif 'en' in self.translations and key in self.translations['en']:
            return self.translations['en'][key]
        else:
            return key

# Usage example

if __name__ == '__main__':
    translator = i18nTranslator()
    translator.init(path='locales')
    print(translator.trans(key="Enter your prompt", lng="zh-CN")) # Output: "输入你的提示词(你希望生成的图片的描述)"