import json


class ObjectToJsonArrayConverter:
    @staticmethod
    def convert(obj):
        def process_value(value):
            if isinstance(value, dict):
                return ObjectToJsonArrayConverter.convert(value)
            elif not isinstance(value, list):
                return [value]
            return value

        result = []
        for key, value in obj.items():
            processed_value = process_value(value)
            result.append({
                "key": key,
                "value": processed_value
            })
        return result

    @staticmethod
    def to_json(obj, indent=None):
        converted = ObjectToJsonArrayConverter.convert(obj)
        return json.dumps(converted, indent=indent, ensure_ascii=False)


# 使用示例
if __name__ == "__main__":
    original_obj = {
        "name": "Test",
        "hobbies": ["Reading", "Swimming"],
        "properties": {
            "desc": "英俊潇洒",
            "nested": {
                "age": 25
            }
        }
    }

    # 转换对象
    converter = ObjectToJsonArrayConverter()
    converted_json = converter.to_json(original_obj, indent=4)

    print(converted_json)