70 lines
2.0 KiB
Python
70 lines
2.0 KiB
Python
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import json
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from pathlib import Path
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from typing import Dict, Any
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import copy
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class ResponseBuilder:
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"""响应构建器"""
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TEMPLATE_DIR = Path(__file__).parent.parent / "config" / "responses"
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@staticmethod
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def load_template(template_name: str) -> Dict:
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"""加载 JSON 模板
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Args:
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template_name: 模板名称（不含.json扩展名）
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Returns:
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模板字典
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"""
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file_path = ResponseBuilder.TEMPLATE_DIR / f"{template_name}.json"
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with open(file_path, 'r', encoding='utf-8') as f:
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return json.load(f)
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@staticmethod
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def replace_placeholders(template: Dict, **kwargs) -> Dict:
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"""递归替换占位符
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Args:
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template: 模板字典
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**kwargs: 占位符键值对
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Returns:
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替换后的字典
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"""
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def replace_value(value):
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if isinstance(value, str):
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result = value
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for key, val in kwargs.items():
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placeholder = f"{{{key}}}"
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if placeholder in result:
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result = result.replace(placeholder, str(val))
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return result
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elif isinstance(value, dict):
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return {k: replace_value(v) for k, v in value.items()}
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elif isinstance(value, list):
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return [replace_value(item) for item in value]
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return value
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# 深拷贝模板，避免修改原始数据
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return replace_value(copy.deepcopy(template))
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@staticmethod
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def build_success_response(template_name: str, **kwargs) -> Dict:
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"""构建成功响应
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Args:
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template_name: 模板名称
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**kwargs: 占位符键值对
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Returns:
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响应字典
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"""
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template = ResponseBuilder.load_template(template_name)
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return ResponseBuilder.replace_placeholders(
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template["success_response"],
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**kwargs
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)
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