Files
LangBot/pkg/config/impls/json.py
2025-11-07 23:02:50 +08:00

70 lines
2.4 KiB
Python

import os
import json
import importlib.resources as resources
from .. import model as file_model
class JSONConfigFile(file_model.ConfigFile):
"""JSON config file"""
def __init__(
self,
config_file_name: str,
template_resource_name: str = None,
template_data: dict = None,
) -> None:
self.config_file_name = config_file_name
self.template_resource_name = template_resource_name
self.template_data = template_data
def exists(self) -> bool:
return os.path.exists(self.config_file_name)
async def get_template_file_str(self) -> str:
if self.template_resource_name is None:
return None
with resources.path('langbot.templates', self.template_resource_name) as path:
return path.open('r', encoding='utf-8').read()
async def create(self):
if await self.get_template_file_str() is not None:
with open(self.config_file_name, 'w', encoding='utf-8') as f:
f.write(await self.get_template_file_str())
elif self.template_data is not None:
with open(self.config_file_name, 'w', encoding='utf-8') as f:
json.dump(self.template_data, f, indent=4, ensure_ascii=False)
else:
raise ValueError('template_file_name or template_data must be provided')
async def load(self, completion: bool = True) -> dict:
if not self.exists():
await self.create()
template_file_str = await self.get_template_file_str()
if template_file_str is not None:
self.template_data = json.loads(template_file_str)
with open(self.config_file_name, 'r', encoding='utf-8') as f:
try:
cfg = json.load(f)
except json.JSONDecodeError as e:
raise Exception(f'Syntax error in config file {self.config_file_name}: {e}')
if completion:
for key in self.template_data:
if key not in cfg:
cfg[key] = self.template_data[key]
return cfg
async def save(self, cfg: dict):
with open(self.config_file_name, 'w', encoding='utf-8') as f:
json.dump(cfg, f, indent=4, ensure_ascii=False)
def save_sync(self, cfg: dict):
with open(self.config_file_name, 'w', encoding='utf-8') as f:
json.dump(cfg, f, indent=4, ensure_ascii=False)